Masahiro Tsujimoto (Ph.D.) - astrophysicist

Publications

Below is the complete list of refereed publications.

2025

• [151] Core line spread function calibration of the X-ray Imaging and Spectroscopy Mission Resolve X-ray calorimeter spectrometer
  Leutenegger, Maurice A. & Brown, Gregory V. & Chiao, Meng P. & Cumbee, Renata S. & Eckart, Megan E. & Fujimoto, Ryuichi & Hell, Natalie & Hoshino, Akio & Ishisaki, Yoshitaka et al., 2025, JATIS, 11, 0
• [150] Benchmark of the Fe "\textsc"xxv $\mathmit"R"$ ratio in photoionized plasma during eclipse of Centaurus X-3 with XRISM/Resolve
  Mochizuki, Yuto & Tsujimoto, Masahiro & Leutenegger, Maurice A & Gu, Liyi & Ballhausen, Ralf & Behar, Ehud & Draghis, Paul A & Hell, Natalie & Pradhan, Pragatiet al., 2025, PASJ, None, psaf098
• [149] Resolve instrument onboard XRISM: design, integration, and instrument test results
  Ishisaki, Yoshitaka & Kelley, Richard L. & Awaki, Hisamitsu & Balleza, Jesus C. & Barnstable, Kim R. & Bialas, Thomas G. & Boissay-Malaquin, Rozenn & Brown, Gregory V. & Canavan, Edgar R. et al., 2025, JATIS, 11, 042023
• [148] Initial in-orbit operation of the soft X-ray spectrometer Resolve onboard the X-ray imaging and spectroscopy mission satellite
  Maeda, Yoshitomo & Fujimoto, Ryuichi & Awaki, Hisamitsu & Balleza, Jesus C. & Barnstable, Kim R. & Bialas, Thomas G. & Boissay-Malaquin, Rozenn & Brown, Gregory V. & Canavan, Edgar R. et al., 2025, JATIS, 11, 042014
• [147] In-orbit operation of Resolve Filter Wheel and modulated X-ray source
  Shipman, Russell F. & Kitamoto, Shunji & Wolfs, Rob & Costantini, Elisa & Eckart, Megan E. & Ferrigno, Carlo & Genolet, Ludovic & Gorter, Nathalie & Grim, Martin et al., 2025, JATIS, 11, 0
• [146] Thermal and kinematic properties of ejecta in SN1987A revealed by XRISM
  XRISM collaboration & Audard, Marc & Awaki, Hisamitsu & Ballhausen, Ralf & Bamba, Aya & Behar, Ehud & Boissay-Malaquin, Rozenn & Brenneman, Laura & Brown, Gregory V et al., 2025, PASJ, None, psaf056
• [145] Pre- and post-launch operation of the Resolve soft X-ray spectrometer onboard the XRISM satellite
  Sato, Kosuke & Ishisaki, Yoshitaka & Kelley, Richard L. & Awaki, Hisamitsu & Balleza, Jesus C. & Barnstable, Kim R. & Bialas, Thomas G. & Boissay-Malaquin, Rozenn & Brown, Gregory V. et al., 2025, JATIS, 11, 042020
• [144] Spectroscopic diagnostics of high-temperature plasma in stellar coronae using Fe "\textsc"xxiv -- "\textsc"xxiv K-shell lines with XRISM
  Kurihara, Miki & Tsujimoto, Masahiro & Audard, Marc & Behar, Ehud & Gu, Liyi & Hamaguchi, Kenji & Hell, Natalie & Kilbourne, Caroline A & Maeda, Yoshitomo et al., 2025, PASJ, None, psaf045
• [143] Structured ionized winds shooting out from a quasar at relativistic speeds
  XRISM collaboration & Audard, Marc & Awaki, Hisamitsu & Ballhausen, Ralf & Bamba, Aya & Behar, Ehud & Boissay-Malaquin, Rozenn & Brenneman, Laura & Brown, Gregory V. et al., 2025, Nature, 641, 1132-1136
• [142] X-Ray Imaging and Spectroscopy Mission
  Tashiro, Makoto & Kelley, Richard & Watanabe, Shin & Maejima, Hironori & Reichenthal, Lillian & Toda, Kenichi & Hartz, Leslie & Santovincenzo, Andrea & Matsushita, Kyoko et al., 2025, PASJ, None, psaf023
• [141] Outflowing photoionized plasma in Circinus X-1 using the high-resolution X-ray spectrometer Resolve onboard XRISM and the radiative transfer code cloudy
  Tsujimoto, Masahiro & Enoto, Teruaki & D\'iaz Trigo, Mar\'ia & Hell, Natalie & Chakraborty, Priyanka & Leutenegger, Maurice A & Loewenstein, Michael & Pradhan, Pragati & Shidatsu, Megumi et al., 2025, PASJ, None, psaf022
• [140] High-count rate effects in event processing for XRISM/Resolve X-ray microcalorimeter: I. Ground test
  Mizumoto, Misaki & Tamba, Tsubasa & Tsujimoto, Masahiro & Cumbee, Renata S. & Eckart, Megan E. & Hodges-Kluck, Edmund & Ishisaki, Yoshitaka & Kilbourne, Caroline A. & Leutenegger, Maurice A. et al., 2025, JATIS, 11, 042005
• [139] Optimization of X-ray event screening using ground and in-orbit data for the Resolve instrument onboard the XRISM satellite
  Mochizuki, Yuto & Tsujimoto, Masahiro & Kilbourne, Caroline A. & Eckart, Megan E. & Ishisaki, Yoshitaka & Kanemaru, Yoshiaki & Leutenegger, Maurice A. & Mizumoto, Misaki & Porter, Frederick S. et al., 2025, JATIS, 11, 042002
• [138] XRISM Reveals Low Nonthermal Pressure in the Core of the Hot, Relaxed Galaxy Cluster A2029
  XRISM collaboration & Audard, Marc & Awaki, Hisamitsu & Ballhausen, Ralf & Bamba, Aya & Behar, Ehud & Boissay-Malaquin, Rozenn & Brenneman, Laura & Brown, Gregory V. et al., 2025, ApJL, 982, L5
• [137] New insights with XRISM and Cloudy: A novel column density diagnostic
  Gunasekera, Chamani M. & van Hoof, Peter A. M. & Tsujimoto, Masahiro & Ferland, Gary J., 2025, A\&A, 694, L13
• [136] Overionized plasma in the supernova remnant Sagittarius A East anchored by XRISM observations
  XRISM collaboration & Audard, Marc & Awaki, Hisamitsu & Ballhausen, Ralf & Bamba, Aya & Behar, Ehud & Boissay-Malaquin, Rozenn & Brenneman, Laura & Brown, Gregory V et al., 2025, PASJ, 77, L1-L8
• [135] The bulk motion of gas in the core of the Centaurus galaxy cluster
  XRISM collaboration & Audard, Marc & Awaki, Hisamitsu & Ballhausen, Ralf & Bamba, Aya & Behar, Ehud & Boissay-Malaquin, Rozenn & Brenneman, Laura & Brown, Gregory V. et al., 2025, Nature, 638, 365-369
• [134] Stratified wind from a super-Eddington X-ray binary is slower than expected.
  XRISM collaboration & Audard, M & Awaki, H. & Ballhausen, R. & Bamba, Aya & Behar, E. & Boissay-Malaquin, R. & Brenneman, L. & Brown, Gregory V. et al., 2025, Nature, None, 0
• [133] Kinematic Evidence for Bipolar Ejecta Flows in the Galactic Supernova Remnant W49B
  XRISM collaboration & Audard, M & Awaki, H. & Ballhausen, R. & Bamba, Aya & Behar, Ehud & Boissay-Malaquin, R. & Brenneman, L. & Brown, G. V. et al., 2025, ApJL, 988, L58

2024

• [132] Detection of the Orbital Modulation of Fe K$\alpha$ Fluorescence Emission in Centaurus X-3 Using the High-resolution Spectrometer Resolve on board XRISM
  Mochizuki, Yuto & Tsujimoto, Masahiro & Kelley, Richard L. & Vander Meulen, Bert & Enoto, Teruaki & Nagai, Yutaro & Done, Chris & Pradhan, Pragati et al., 2024, ApJL, 977, L21
• [131] The XRISM first-light observation: Velocity structure and thermal properties of the supernova remnant N\,132D
  XRISM Collaboration & Audard, Marc & Awaki, Hisamitsu & Ballhausen, Ralf & Bamba, Aya & Behar, Ehud & Boissay-Malaquin, Rozenn & Brenneman, Laura & Brown, Gregory V et al., 2024, PASJ, None, psae080
• [130] XRISM Spectroscopy of the Fe K$\alpha$ Emission Line in the Seyfert Active Galactic Nucleus NGC 4151 Reveals the Disk, Broad-line Region, and Torus
  XRISM Collaboration & Audard, Marc & Awaki, Hisamitsu & Ballhausen, Ralf & Bamba, Aya & Behar, Ehud & Boissay-Malaquin, Rozenn & Brenneman, Laura & Brown, Gregory V. et al., 2024, ApJL, 973, L25
• [129] Intrinsic line profiles for X-ray fluorescent lines in SKIRT
  Vander Meulen, Bert & Camps, Peter & Tsujimoto, Masahiro & Wada, Keiichi, 2024, A\&A, 688, L33
• [128] High-velocity Blue-shifted Fe xxv He$\alpha$ Line during a Superflare of the RS Canum Venaticorum--type Star IM Peg
  Inoue, Shun & Iwakiri, Wataru Buz & Enoto, Teruaki & Uchida, Hiroyuki & Kurihara, Miki & Tsujimoto, Masahiro & Notsu, Yuta & Hamaguchi, Kenji & Gendreau, Keith et al., 2024, ApJL, 969, L12
• [127] JASMINE: Near-infrared astrometry and time-series photometry science
  Kawata, Daisuke & Kawahara, Hajime & Gouda, Naoteru & Secrest, Nathan J & Kano, Ryouhei & Kataza, Hirokazu & Isobe, Naoki & Ohsawa, Ryou & Usui, Fumihiko et al., 2024, PASJ, 76, 386-425
• [126] Investigation of Nonequilibrium Ionization Plasma during a Giant Flare of UX Arietis Triggered with MAXI and Observed with NICER
  Kurihara, Miki & Iwakiri, Wataru Buz & Tsujimoto, Masahiro & Ebisawa, Ken & Toriumi, Shin & Imada, Shinsuke & Tsuboi, Yohko & Usui, Kazuki & Gendreau, Keith C. et al., 2024, ApJ, 965, 135
• [125] "Development of the machine learning-based anomaly detection algorithms for the low-temperature detector onboard the XRISM satellite"
  Kashiwazaki, Miu & Tsujimoto, Masahiro, 2024, JSSIJ, JAXA-RR-23-007, 45-55
• [124] Spectral Modeling of the Supersoft X-Ray Source CAL87 Based on Radiative Transfer Codes
  Tsujimoto, Masahiro & Mizumoto, Misaki & Ebisawa, Ken & Odaka, Hirokazu & Wada, Qazuya, 2024, ApJ, 960, 46
• [123] The XRISM/Resolve View of the Fe K Region of Cyg X-3
  XRISM Collaboration & Audard, Marc & Awaki, Hisamitsu & Ballhausen, Ralf & Bamba, Aya & Behar, Ehud & Boissay-Malaquin, Rozenn & Brenneman, Laura & Brown, Gregory V. et al., 2024, ApJL, 977, L34

2023

• [122] Ground test results of the microvibration interference for the x-ray microcalorimeter onboard x-ray imaging and spectroscopy mission
  Hasebe, Takashi & Imamura, Ryuta & Tsujimoto, Masahiro & Awaki, Hisamitsu & Chiao, Meng P. & Fujimoto, Ryuichi & Hartz, Leslie S. & Kilbourne, Caroline A. & Sneiderman, Gary A. et al., 2023, JATIS, 9, 014003
• [121] Ground test results of the electromagnetic interference for the x-ray microcalorimeter onboard XRISM
  Kurihara, Miki & Tsujimoto, Masahiro & Eckart, Megan E. & Kilbourne, Caroline A. & Matsuda, Frederick T. & McLaughlin, Brian J. & Oguri, Shugo & Porter, Frederick S. & Takei, Yoh et al., 2023, JATIS, 9, 018004
• [120] X-ray Time Lag Evaluation of MAXI J1820+070 with a Differential Cross-correlation Analysis
  Omama, Tomoki & Tsujimoto, Masahiro & Ebisawa, Ken & Mizumoto, Misaki, 2023, ApJ, 945, 92
• [119] "Development of the data monitor system of the Resolve instrument onboard the XRISM satellite"
  Tsujimoto, Masahiro, 2023, JSSIJ, JAXA-RR-22-009, 1-6
• [118] Mechanical Cryocooler Noise Observed in the Ground Testing of the Resolve X-ray Microcalorimeter Onboard XRISM
  Imamura, R. & Awaki, H. & Tsujimoto, M. & Yamada, S. & Porter, F. S. & Kilbourne, C. A. & Kelley, R. L. & Takei, Y. & the XRISM Resolve teamet al., 2023, JLTP, None, 0
• [117] X-Ray Spectral Variations of Circinus X-1 Observed with NICER throughout an Entire Orbital Cycle
  Tominaga, Mayu & Tsujimoto, Masahiro & Ebisawa, Ken & Enoto, Teruaki & Hayasaki, Kimitake, 2023, ApJ, 958, 52

2022

• [116] Sensitivity Modeling for LiteBIRD
  Hasebe, T. & Ade, P. A. R. & Adler, A. & Allys, E. & Alonso, D. & Arnold, K. & Auguste, D. & Aumont, J. & Aurlien, R. et al., 2022, JLTP, None, 0
• [115] Optical Characterization of OMT-Coupled TES Bolometers for LiteBIRD
  Hubmayr, J. & Ade, P. A. R. & Adler, A. & Allys, E. & Alonso, D. & Arnold, K. & Auguste, D. & Aumont, J. & Aurlien, R. et al., 2022, JLTP, 209, 396-408
• [114] Assessment of the RFI by the X-Band Antenna in LiteBIRD Using a 3D Electromagnetic Field Simulator
  Tsuji, M. & Tsujimoto, M. & Sekimoto, Y. & Dotani, T. & Shiraishi, M. & on behalf of the LiteBIRD collaboration, 2022, JLTP, None, 0
• [113] Probing Cosmic Inflation with the LiteBIRD Cosmic Microwave Background Polarization Survey
  LiteBIRD Collaboration & Allys, E & Arnold, K & Aumont, J & Aurlien, R & Azzoni, S & Baccigalupi, C & Banday, A J et al., 2022, PTEP, None, ptac150
• [112] Design of the On-Board Data Compression for the Bolometer Data of LiteBIRD
  Tominaga, Mayu & Tsujimoto, Masahiro & Smecher, Graeme & Ishino, Hirokazu & LiteBIRD Joint study group, 2022, JLTP, None, 0
• [111] Deep near-infrared imaging observation of the faint X-ray point sources constituting the Galactic bulge X-ray emission
  Morihana, Kumiko & Tsujimoto, Masahiro & Ebisawa, Ken & Gandhi, Poshak, 2022, PASJ, None, 0
• [110] X-ray and optical spectroscopic study of a "$\gamma$" Cassiopeiae analog source "$\pi$" Aquarii
  Tsujimoto, Masahiro & Hayashi, Takayuki & Morihana, Kumiko & Moritani, Yuki, 2022, PASJ, 00, 0

2021

• [109] Simulations of systematic effects arising from cosmic rays in the LiteBIRD space telescope, and effects on the measurements of CMB B-modes
  Stever, S.L. & Ghigna, T. & Tominaga, M. & Puglisi, G. & Tsujimoto, M. & Marazzini, M. Zeccoli & Baratto, M. & Tomasi, M. & Minami, Y. et al., 2021, JCAP, 2021, 013
• [108] X-ray transmission calibration of the gate valve for the x-ray astronomy satellite XRISM
  Midooka, Takuya & Tsujimoto, Masahiro & Kitamoto, Shunji & Nakaniwa, Nozomi & Maeda, Yoshitomo & Ishida, Manabu & Ebisawa, Ken & Tominaga, Mayu, 2021, JATIS, 7, 028005

2020

• [107] Cooling system for the Resolve onboard XRISM
  Ezoe, Yuichiro & Ishisaki, Yoshitaka & Fujimoto, Ryuichi & Takei, Yoh & Horiuchi, Takafumi & Tsujimoto, Masahiro & Ishikawa, Kumi & Yasuda, Susumu & Yanagase, Keiichi et al., 2020, Cryogenics, 108, 103016
• [106] Updated Design of the CMB Polarization Experiment Satellite LiteBIRD
  Sugai, H. & Ade, P. A.R. & Akiba, Y. & Alonso, D. & Arnold, K. & Aumont, J. & Austermann, J. & Baccigalupi, C. & Bet al., 2020, JLTP, 199, 1107-1117

2019

• [105] LiteBIRD: A Satellite for the Studies of B-Mode Polarization and Inflation from Cosmic Background Radiation Detection
  Hazumi, M. & Ade, P. A.R. & Akiba, Y. & Alonso, D. & Arnold, K. & Aumont, J. & Baccigalupi, C. & Barron, D. & Basak, S. et al., 2019, JLTP, 194, 443-452
• [104] X-ray reverberation lags of the Fe--K line due to AGN disc winds
  Mizumoto, Misaki & Ebisawa, Ken & Tsujimoto, Masahiro & Done, Chris & Hagino, Kouichi & Odaka, Hirokazu, 2019, MNRAS, 482, 5316-5326

2018

• [103] Detection of polarized gamma-ray emission from the Crab nebula with the Hitomi Soft Gamma-ray Detector
  Hitomi Collaboration, 2018, PASJ, 70, 0
• [102] Concept Study of Optical Configurations for High-Frequency Telescope for LiteBIRD
  Hasebe, T. & Kashima, S. & Ade, P. A.R. & Akiba, Y. & Alonso, D. & Arnold, K. & Aumont, J. & Baccigalupi, C. & Barron, D. et al., 2018, JLTP, 193, 841-850
• [101] Resolve Instrument on X-ray Astronomy Recovery Mission (XARM)
  Ishisaki, Y. & Ezoe, Y. & Yamada, S. & Ichinohe, Y. & Fujimoto, R. & Takei, Y. & Yasuda, S. & Ishida, M. & Yamasaki, N. Y. et al., 2018, JLTP, 193, 991-995
• [100] The LiteBIRD Satellite Mission: Sub-Kelvin Instrument
  Suzuki, A. & Ade, P. A.R. & Akiba, Y. & Alonso, D. & Arnold, K. & Aumont, J. & Baccigalupi, C. & Barron, D. & Basak, S. et al., 2018, JLTP, 193, 1048-1056
• [99] Suzaku and NuSTAR X-ray spectroscopy of "$\gamma$"\,Cassiopeiae and HD\,110432
  Tsujimoto, Masahiro & Morihana, Kumiko & Hayashi, Takayuki & Kitaguchi, Takao, 2018, PASJ, 70, 109
• [98] In-Orbit Performance of the Digital Electronics for the X-Ray Microcalorimeter Onboard the Hitomi Satellite
  Tsujimoto, M. & Tashiro, M. S. & Ishisaki, Y. & Yamada, S. & Seta, H. & Mitsuda, K. & Boyce, K. R. & Eckart, M. E. & Kilbourne, C. A. et al., 2018, JLTD, 193, 505-511
• [97] Ground calibration of the Astro-H (Hitomi) soft x-ray spectrometer
  Eckart, Megan E. & Adams, Joseph S. & Boyce, Kevin R. & Brown, Gregory V. & Chiao, Meng P. & Fujimoto, Ryuichi & Haas, Daniel & den Herder, Jan-Willem & Hoshino, Akio et al., 2018, JATIS, 4, 1
• [96] X-ray short-time lags in the Fe-K energy band produced by scattering clouds in active galactic nuclei
  Mizumoto, Misaki & Done, Chris & Hagino, Kouichi & Ebisawa, Ken & Tsujimoto, Masahiro & Odaka, Hirokazu, 2018, MNRAS, 478, 971-982
• [95] Hitomi X-ray observation of the pulsar wind nebula G21.5-0.9
  Hitomi Collaboration, 2018, PASJ, 70, 0
• [94] Can the relativistic light-bending model explain X-ray spectral variations of Seyfert galaxies?
  Mizumoto, Misaki & Moriyama, Kotaro & Ebisawa, Ken & Mineshige, Shin & Kawanaka, Norita & Tsujimoto, Masahiro, 2018, PASJ, 70, 42-43
• [93] Cryogen-free operation of the Soft X-ray Spectrometer instrument
  Sneiderman, Gary A. & Shirron, Peter J. & Fujimoto, Ryuichi & Bialas, Thomas G. & Boyce, Kevin R. & Chiao, Meng P. & DiPirro, Michael J & Eckart, Megan E. & Hartz, Leslie et al., 2018, JATIS, 4, 1
• [92] Atmospheric gas dynamics in the Perseus cluster observed with Hitomi*
  Hitomi Collaboration, 2018, PASJ, 70, 0
• [91] Temperature structure in the Perseus cluster core observed with Hitomi
  Hitomi Collaboration, 2018, PASJ, 70, 0
• [90] Measurements of resonant scattering in the Perseus Cluster core with Hitomi SXS
  Hitomi Collaboration, 2018, PASJ, 70, 0
• [89] Atomic data and spectral modeling constraints from high-resolution X-ray observations of the Perseus cluster with Hitomi
  Hitomi Collaboration, 2018, PASJ, 70, 0
• [88] Glimpse of the highly obscured HMXB IGR J16318-4848 with Hitomi
  Hitomi Collaboration, 2018, PASJ, 70, 0
• [87] Hitomi observations of the LMC SNR N 132 D: Highly redshifted X-ray emission from iron ejecta
  Hitomi Collaboration, 2018, PASJ, 70, 0
• [86] Hitomi X-ray studies of giant radio pulses from the Crab pulsar
  Hitomi Collaboration, 2018, PASJ, 70, 0
• [85] Search for thermal X-ray features from the Crab nebula with the Hitomi soft X-ray spectrometer*
  Hitomi Collaboration, 2018, PASJ, 70, 0
• [84] Hitomi observation of radio galaxy NGC\,1275: The first X-ray microcalorimeter spectroscopy of Fe-K$\alpha$ line emission from an active galactic nucleus*
  Aharonian, Felix, Hitomi Collaboration & Akamatsu, Hiroki & Akimoto, Fumie & Allen, Steven W & Angelini, Lorella & Audard, Marc & Awaki, Hisamitsu & Axelsson, Magnus & Bamba, Aya et al., 2018, PASJ, 70, 13
• [83] In-flight calibration of Hitomi Soft X-ray Spectrometer. (1) Background
  Kilbourne, Caroline A & Sawada, Makoto & Tsujimoto, Masahiro & Angellini, Lorella & Boyce, Kevin R & Eckart, Megan E & Fujimoto, Ryuichi & Ishisaki, Yoshitaka & Kelley, Richard L et al., 2018, PASJ, 70, 18
• [82] In-flight verification of the calibration and performance of the ASTRO-H (Hitomi) Soft X-ray Spectrometer
  Leutenegger, Maurice A. & Audard, Marc & Boyce, Kevin R. & Brown, Gregory V. & Chiao, Meng P. & Eckart, Megan E. & Fujimoto, Ryuichi & Furuzawa, Akihiro & Guainazzi, Matteo et al., 2018, JATIS, 4, 1
• [81] In-flight calibration of the Hitomi Soft X-ray Spectrometer. (2) Point spread function
  Maeda, Yoshitomo & Sato, Toshiki & Hayashi, Takayuki & Iizuka, Ryo & Angelini, Lorella & Asai, Ryota & Furuzawa, Akihiro & Kelley, Richard & Koyama, Shu et al., 2018, PASJ, 70, 0
• [80] Hitomi (ASTRO-H) X-ray Astronomy Satellite
  Takahashi, Tadayuki & Kokubun, Motohide & Mitsuda, Kazuhisa & Kelley, Richard L. & Ohashi, Takaya & Aharonian, Felix & Akamatsu, Hiroki & Akimoto, Fumie & Allen, Steven W. et al., 2018, JATIS, 4, 1
• [79] In-flight calibration of Hitomi Soft X-ray Spectrometer. (3) Effective area
  Tsujimoto, Masahiro & Okajima, Takashi & Eckart, Megan E. & Hayashi, Takayuki & Hoshino, Akio & Iizuka, Ryo & Kelley, Richard L. & Kilbourne, Caroline A. & Leutenegger, Maurice A. et al., 2018, PASJ, 70, 0
• [78] In-flight performance of the soft x-ray spectrometer detector system on Astro-H
  Porter, Frederick S. & Boyce, Kevin R. & Chiao, Meng P. & Eckart, Megan E. & Fujimoto, Ryuichi & Ishisaki, Yoshitaka & Kilbourne, Caroline Anne & Leutenegger, Maurice A. & McCammon, Danielet al., 2018, JATIS, 4, 1
• [77] In-flight performance of pulse-processing system of the ASTRO-H/Hitomi soft x-ray spectrometer
  Ishisaki, Yoshitaka & Yamada, Shinya & Seta, Hiromi & Tashiro, Makoto S. & Takeda, Sawako & Terada, Yukikatsu & Kato, Yuka & Tsujimoto, Masahiro & Koyama, Shu et al., 2018, JATIS, 4, 011217

2017

• [76] Performance of the helium dewar and the cryocoolers of the Hitomi soft x-ray spectrometer
  Fujimoto, Ryuichi & Takei, Yoh & Mitsuda, Kazuhisa & Yamasaki, Noriko Y. & Tsujimoto, Masahiro & Koyama, Shu & Ishikawa, Kumi & Sugita, Hiroyuki & Sato, Yoichi et al., 2017, JATIS, 4, 1
• [75] Solar abundance ratios of the iron-peak elements in the Perseus cluster
  Hitomi Collaboration, 2017, Nature, 551, 478-480
• [74] In-orbit operation of the soft x-ray spectrometer onboard the Hitomi satellite
  Tsujimoto, Masahiro & Mitsuda, Kazuhisa & Kelley, Richard L. & den Herder, Jan-Willem & Bialas, Thomas G. & Boyce, Kevin R. & Chiao, Meng P. & de Vries, Cor P., 2017, JATIS, 4, 1
• [73] Calibration sources and filters of the soft x-ray spectrometer instrument on the Hitomi spacecraft
  de Vries, Cor P. & Haas, Daniel & Yamasaki, Noriko Y. & den Herder, Jan-Willem & Paltani, Stephane & Kilbourne, Caroline & Tsujimoto, Masahiro & Eckart, Megan E. & Leutenegger, Maurice A.et al., 2017, JATIS, 4, 1
• [72] Hitomi Constraints on the 3.5 keV Line in the Perseus Galaxy Cluster
  Hitomi Collaboration, 2017, ApJL, 837, L15
• [71] A systematic X-ray study of the dwarf novae observed with Suzaku
  Wada, Qazuya & Tsujimoto, Masahiro & Ebisawa, Ken & Hayashi, Takayuki, 2017, PASJ, 69, 10

2016

• [70] Calibration of the microcalorimeter spectrometer on-board the Hitomi (Astro-H) observatory (invited)
  Eckart, M. E. & Boyce, K. R. & Brown, G. V. & Chiao, M. P. & Fujimoto, R. & Haas, D. & den Herder, J.-W. & Ishisaki, Y. & Kelley, R. L. et al., 2016, Rev. Sci. Instrum., 87, 11D503
• [69] Near-infrared spectroscopy of faint discrete X-ray point sources constituting the Galactic ridge X-ray emission
  Morihana, Kumiko & Tsujimoto, Masahiro & Dubath, Pierre & Yoshida, Tessei & Suzuki, Kensuke & Ebisawa, Ken, 2016, PASJ, 68, 57
• [68] The quiescent intracluster medium in the core of the Perseus cluster
  Hitomi Collaboration, 2016, Nature, 535, 117-121
• [67] Temporal Gain Correction for X-ray Calorimeter Spectrometers
  Porter, F. S. & Chiao, M. P. & Eckart, M. E. & Fujimoto, R. & Ishisaki, Y. & Kelley, R. L. & Kilbourne, C. A. & Leutenegger, M. A. & McCammon, D. et al., 2016, JLTP, 184, 498-504
• [66] Origin of the X-ray broad iron spectral feature in GRS 1915+105
  Mizumoto, Misaki & Ebisawa, Ken & Tsujimoto, Masahiro & Inoue, Hajime, 2016, PASJ, 68, 16-17

2015

2014

• [65] NGC 7538: Multiwavelength study of stellar cluster regions associated with IRS 1-3 and IRS 9 sources
  Mallick, K. K. & Ojha, D. K. & Tamura, M. & Pandey, A. K. & Dib, S. & Ghosh, S. K. & Sunada, K. & Zinchenko, I. et al., 2014, MNRAS, 443, 3218-3237
• [64] X-ray development of the classical nova V2672 Ophiuchi with Suzaku
  Takei, Dai & Tsujimoto, Masahiro & Drake, Jeremy J. & Kitamoto, Shunji, 2014, PASJ, 66, 37

2013

• [63] X-ray eclipse diagnosis of the evolving mass loss in the recurrent nova U Scorpii 2010
  Takei, D. & Drake, J. J. & Tsujimoto, M. & Ness, J. U. & Osborne, J. P. & Starrfield, S. & Kitamoto, S., 2013, ApJL, 769, L4
• [62] Detection of a 522 s pulsation from the transient X-ray source suzaku J0102.8-7204 (SXP 523) in the small magellanic cloud
  Wada, Qazuya & Tsujimoto, Masahiro & Ebisawa, Ken & Miller, Eric D., 2013, PASJ, 65, L2
• [61] X-RAY POINT-SOURCE POPULATIONS CONSTITUTING THE GALACTIC RIDGE X-RAY EMISSION
  Morihana, Kumiko & Tsujimoto, Masahiro & Yoshida, Tessei & Ebisawa, Ken, 2013, ApJ, 766, 14

2012

• [60] Suzaku X-ray observation of the dwarf nova Z camelopardalis at the onset of an optical outburst
  Saitou, Kei & Tsujimoto, Masahiro & Ebisawa, Ken & Ishida, Manabu, 2012, PASJ, 64, 88
• [59] The high-resolution X-ray microcalorimeter spectrometer, SXS, on astro-H
  Mitsuda, Kazuhisa & Kelley, Richard L. & Boyce, Kevin R. & Brown, Gregory V. & Costantini, Elisa & Di Pirro, Michael J. & Ezoe, Yuichiro & Fujimoto, Ryuichi & Gendreau, Keith C. et al., 2012, JLTP, 167, 795-802
• [58] Development of a digital signal processing system for the X-ray microcalorimeter onboard ASTRO-H (II)
  Shimoda, Y. & Seta, H. & Tashiro, M. S. & Terada, Y. & Ishisaki, Y. & Tsujimoto, M. & Mitsuda, K. & Yasuda, T. & Takeda, S. et al., 2012, JLTP, 167, 575-581
• [57] Data-oriented diagnostics of pileup effects on the suzaku XIS
  Yamada, Shin'ya & Uchiyama, Hideki & Dotani, Tadayasu & Tsujimoto, Masahiro & Katsuda, Satoru & Makishima, Kazuo & Takahashi, Hiromitsu & Noda, Hirofumi & Torii, Shunsuke et al., 2012, PASJ, 64, 531-5312
• [56] The digital processing system for the soft X-ray spectrometer onboard ASTRO-H the design and the performance
  Seta, H. & Tashiro, M. S. & Ishisaki, Y. & Tsujimoto, M. & Shimoda, Y. & Abe, Y. & Yasuda, T. & Takeda, S. & Asahina, M. et al., 2012, IEEE, 59, 366-372
• [55] ORIGIN: Metal creation and evolution from the cosmic dawn
  den Herder, Jan Willem & Piro, Luigi & Ohashi, Takaya & Kouveliotou, Chryssa & Hartmann, Dieter H. & Kaastra, Jelle S. & Amati, L. & Andersen, M. I. & Arnaud, M. et al., 2012, Exp Astron, 34, 519-549

2011

• [54] Cross spectral calibration of Suzaku, XMM-Newton, and Chandra with PKS 2155-304 as an activity of IACHEC
  Ishida, Manabu & Tsujimoto, Masahiro & Kohmura, Takayoshi & Stuhlinger, Martin & Smith, Michael & Marshall, Herman L. & Guainazzi, Matteo & Kawai, Kohei & Ogawa, Taikiet al., 2011, PASJ, 63, S657-S668
• [53] Near-infrared and X-ray observations of XSS J12270-4859
  Saitou, Kei & Tsujimoto, Masahiro & Ebisawa, Ken & Ishida, Manabu & Mukai, Koji & Nagayama, Takahiro & Nishiyama, Shogo & Gandhi, Poshaket al., 2011, PASJ, 63, S759-S769
• [52] X-ray study of rekindled accretion in the classical nova V2491 Cygni
  Takei, Dai & Ness, Jan Uwe & Tsujimoto, Masahiro & Kitamoto, Shunji & Drake, Jeremy J. & Osborne, Julian P. & Takahashi, Hiromitsu & Kinugasa, Kenzo, 2011, PASJ, 63, S729-S738
• [51] Cross-calibration of the X-ray instruments onboard the Chandra, INTEGRAL, RXTE, Suzaku, Swift, and XMM- Newton observatories using G21.5-0.9
  Tsujimoto, M. & Guainazzi, M. & Plucinsky, P. P. & Beardmore, A. P. & Ishida, M. & Natalucci, L. & Posson-Brown, J. L.L. & Read, A. M. & Saxton, R. D. et al., 2011, A\&A, 525, A25

2010

• [50] On relativistic disk spectroscopy in compact objects with X-ray CCD cameras
  Miller, J. M. & D'A\`i, A. & Bautz, M. W. & Bhattacharyya, S. & Burrows, D. N. & Cackett, E. M. & Fabian, A. C. & Freyberg, M. J. & Haberl, F. et al., 2010, ApJ, 724, 1441-1455
• [49] Long-term spectral variations of ultraluminous X-ray sources in the interacting galaxy systems M 51 and NGC 4490/85
  Yoshida, Tessei & Ebisawa, Ken & Matsushita, Kyoko & Tsujimoto, Masahiro & Kawaguchi, Toshihiro, 2010, ApJ, 722, 760-773
• [48] Cooling system for the soft X-ray spectrometer onboard Astro-H
  Fujimoto, Ryuichi & others, 2010, Cryogenics, 50, 488-493

2009

• [47] Suzaku X-ray study of an anomalous source XSS J12270-4859
  Saitou, Kei & Tsujimoto, Masahiro & Ebisawa, Ken & Manabu, Ishida, 2009, PASJ, 61, L13-L16
• [46] Super-hard x-ray emission from n carinae observed with suzaku
  Sekiguchi, Akiko & Tsujimoto, Masahiro & Kitamoto, Shunji & Ishida, Manabu & Hamaguchi, Kenji & Mori, Hideyuki & Tsuboi, Yohko, 2009, PASJ, 61, 629-637
• [45] Swift X-ray and ultraviolet monitoring of the classical nova V458 Vul (Nova Vul 2007)
  Ness, J. U. & Drake, J. J. & Beardmore, A. P. & Boyd, D. & Bode, M. F. & Brady, S. & Evans, P. A. & Gaensicke, B. T. & Kitamoto, S. et al., 2009, ApJ, 137, 4160-4168
• [44] Suzaku detection of superhard X-ray emission from the classical Nova V2491 Cygni
  Takei, D. & Tsujimoto, M. & Kitamoto, S. & Ness, J. U. & Drake, J. J. & Takahashi, H. & Mukai, K., 2009, ApJL, 697, L54-L57
• [43] X-Ray observations of the sagittarius d h ii region toward the galactic center with suzaku
  Sawada, Makoto & Tsujimoto, Masahiro & Koyama, Katsuji & Law, Casey J. & Tsuru, Takeshi Go & Hyodo, Yoshiaki, 2009, PASJ, 61, S209-S218
• [42] X-ray spectroscopy of the classical nova V458 Vulpeculae with Suzaku
  Tsujimoto, Masahiro & Takei, Dai & Drake, Jeremy J. & Ness, Jan Uwe & Kitamoto, Shunji, 2009, PASJ, 61, S69-S76

2008

• [41] Spectral study of the galactic ridge X-ray emission with Suzaku
  Ebisawa, Ken & Yamauchi, Shigeo & Tanaka, Yasuo & Koyama, Katsuji & Ezoe, Yuichiro & Bamba, Aya & Kokubun, Motohide & Hyodo, Yoshiaki & Tsujimoto, Masahiro et al., 2008, PASJ, 60, S223-S229
• [40] Suzaku spectroscopy of extended X-ray emission in M17
  Hyodo, Yoshiaki & Tsujimoto, Masahiro & Hamaguchi, Kenji & Koyama, Katsuji & Kitamoto, Shunji & Maeda, Yoshitomo & Tsuboi, Yohko & Ezoe, Yuichiro, 2008, PASJ, 60, S85-S93
• [39] Suzaku X-ray spectroscopy of a peculiar hot star in the galactic center region
  Hyodo, Yoshiaki & Tsujimoto, Masahiro & Koyama, Katsuji & Nishiyama, Shogo & Nagata, Tetsuya & Sakon, Itsuki & Murakami, Hiroshi & Matsumoto, Hironori, 2008, PASJ, 60, S173-S181
• [38] Suzaku detection of an intense X-ray flare from an A-type star, HD 161084
  Miura, Junichiro & Tsujimoto, Masahiro & Tsuboi, Yohko & Maeda, Yoshitomo & Sugawara, Yasuharu & Koyama, Katsuji & Yamauchi, Shigeo, 2008, PASJ, 60, S49-S56
• [37] Detection of a rare supersoft outburst event during a Suzaku observation of 1E 0102.2-7219
  Takei, Dai & Tsujimoto, Masahiro & Kitamoto, Shunji & Morii, Mikio & Ebisawa, Ken & Maeda, Yoshitomo & Miller, Eric D., 2008, PASJ, 60, S231-S239
• [36] Oxygen line mapping of SN 1006 with Suzaku
  Bamba, Aya & Yamaguchi, Hiroya & Koyama, Katsuji & Hiraga, Junko S. & Holt, Steve & Hughes, John P. & Katagiri, Hideaki & Kataoka, Jun & Katsuda, Satoru et al., 2008, ASR, 41, 411-415

2007

• [35] Near-Infrared Study of the Carina Nebula
  Sanchawala, Kaushar & Chen, Wen-Ping & Ojha, Devendra & Ghosh, Swarna Kanti & Nakajima, Yasushi & Tamura, Motohide & Baba, Daisuke & Sato, Shuji & Tsujimoto, Masahiroet al., 2007, ApJ, 667, 963-979
• [34] An X-Ray Imaging Study of the Stellar Population in RCW 49
  Tsujimoto, M. & Feigelson, E. D. & Townsley, L. K. & Broos, P. S. & Getman, K. V. & Wang, J. & Garmire, G. P. & Baba, D. & Nagayama, T. et al., 2007, ApJ, 665, 719-735
• [33] Molecular Hydrogen Emission from Protoplanetary Disks. II. Effects of X-Ray Irradiation and Dust Evolution
  Nomura, H. & Aikawa, Y. & Tsujimoto, M. & Nakagawa, Y. & Millar, T. J., 2007, ApJ, 661, 334-353
• [32] Suzaku observation of diffuse X-ray emission from the Carina Nebula
  Hamaguchi, Kenji & Petre, Robert & Matsumoto, Hironori & Tsujimoto, Masahiro & Holt, Stephen S. & Ezoe, Yuichiro & Ozawa, Hideki & Tsuboi, Yohko & Soong, Yang et al., 2007, PASJ, 59, S151-S161
• [31] X-Ray Imaging Spectrometer (XIS) on board Suzaku
  Koyama, Katsuji & Tsunemi, Hiroshi & Dotani, Tadayasu & Bautz, Mark W. & Hayashida, Kiyoshi & Tsuru, Takeshi Go & Matsumoto, Hironori & Ogawara, Yoshiaki & Ricker, George R. et al., 2007, PASJ, 59, S23-S33
• [30] The X-ray observatory Suzaku
  Mitsuda, Kazuhisa & Bautz, Mark & Inoue, Hajime & Kelley, Richard L. & Koyama, Katsuji & Kunieda, Hideyo & Makishima, Kazuo & Ogawara, Yoshiaki & Petre, Robert et al., 2007, PASJ, 59, S1-S7
• [29] Suzaku spectroscopic study of hard X-ray emission in the Arches cluster
  Tsujimoto, Masahiro & Hyodo, Yoshiaki & Koyama, Katsuji, 2007, PASJ, 59, S229-S235
• [28] An X-Ray Census of Young Stars in the Massive Southern Star-forming Complex NGC 6357
  Wang, Junfeng & Townsley, Leisa K. & Feigelson, Eric D. & Getman, Konstantin V. & Broos, Patrick S. & Garmire, Gordon P. & Tsujimoto, Masahiro, 2007, ApJS, 168, 100-127

2006

• [27] Hard X-Rays from Ultracompact H ii Regions in W49A
  Tsujimoto, M. & Hosokawa, T. & Feigelson, E. D. & Getman, K. V. & Broos, P. S., 2006, ApJ, 653, 409-415
• [26] Chandra Study of the Cepheus B Star-forming Region: Stellar Populations and the Initial Mass Function
  Getman, Konstantin V. & Feigelson, Eric D. & Townsley, Leisa & Broos, Patrick & Garmire, Gordon & Tsujimoto, Masahiro, 2006, ApJS, 163, 306-334

2005

• [25] Chandra Deep X-Ray Observation of a Typical Galactic Plane Region and Near-Infrared Identification
  Ebisawa, K. & Tsujimoto, M. & Paizis, A. & Hamaguchi, K. & Bamba, A. & Cutri, R. & Kaneda, H. & Maeda, Y. & Sato, G. et al., 2005, ApJ, 635, 214
• [24] X-Ray and Near-Infrared Studies of the Star-forming Cloud L1448
  Tsujimoto, M. & Kobayashi, N. & Tsuboi, Y., 2005, ApJ, 130, 2212-2219
• [23] Chandra Orion Ultradeep Project: Observations and Source Lists
  Getman, K. V. & Flaccomio, E. & Broos, P. S. & Grosso, N. & Tsujimoto, M. & Townsley, L. & Garmire, G. P. & Kastner, J. & Li, J. et al., 2005, ApJS, 160, 319-352
• [22] Iron Fluorescent Line Emission from Young Stellar Objects in the Orion Nebula
  Tsujimoto, M. & Feigelson, E. D. & Grosso, N. & Micela, G. & Tsuboi, Y. & Favata, F. & Shang, H. & Kastner, J. H., 2005, ApJS, 160, 503-510
• [21] A survey for Fe 6.4 keV emission in young stellar objects in "$\rho$" Oph: The strong fluorescence from Elias 29
  Favata, F. & Micela, G. & Silva, B. & Sciortino, S. & Tsujimoto, M., 2005, A\&A, 433, 1047-1054
• [20] FAST [Fe ii ] Wind with a Wide Opening Angle from L1551 IRS 5
  Pyo, Tae-Soo & Hayashi, Masahiko & Kobayashi, Naoto & Tokunaga, Alan T. & Terada, Hiroshi & Tsujimoto, Masahiro & Hayashi, Saeko S. & Usuda, Tomonori & Yamashita, Takuya et al., 2005, ApJ, 618, 817-821

2004

• [19] A high-resolution very large array observation of a protostar in OMC-3: Shock-induced X-ray emission by a protostellar jet
  Tsujimoto, Masahiro & Koyama, Katsuji & Kobayashi, Naoto & Saito, Masao & Tsuboi, Yohko & Chandler, Claire J., 2004, PASJ, 56, 341-345
• [18] A hybrid X-ray imaging spectrometer for NeXT and the next generation X-ray satellite
  Tsuru, T. G. & Tanimori, T. & Bamba, A. & Imanishi, K. & Koyama, K. & Kubo, H. & Matsumoto, H. & Miuchi, K. & Nagayoshi, M. et al., 2004, ASR, 34, 2688-2690

2003

• [17] A systematic study of X-ray flares from low-mass young stellar objects in the "$\rho$" ophiuchi star-forming region with Chandra
  Imanishi, Kensuke & Nakajima, Hiroshi & Tsujimoto, Masahiro & Koyama, Katsuji & Tsuboi, Yohko, 2003, PASJ, 55, 653-681
• [16] X-ray observation on the monoceros R2 star-forming region with the Chandra ACIS-I array
  Nakajima, Hiroshi & Imanishi, Kensuke & Takagi, Shin Ichiro & Koyama, Katsuji & Tsujimoto, Masahiro, 2003, PASJ, 55, 635-651
• [15] Review of discrete X-ray sources in the small magellanic cloud: Summary of the ASCA results and implication on the recent star-forming activity
  Yokogawa, Jun & Imanishi, Kensuke & Tsujimoto, Masahiro & Koyama, Katsuji & Nishiuchi, Mamiko, 2003, PASJ, 55, 161-189

2002

• [14] A novel method to estimate the thickness of the depletion layer of an X-ray CCD
  Awaki, H. & Tachibana, K. & Tamai, Y. & Yamamoto, K. & Kitamoto, S. & Tsujimoto, M., 2002, NIM-A, 495, 232-239
• [13] X-Ray Study on the Evolution and Structure of Protostars
  Imanishi, Kensuke & Tsujimoto, Masahiro & Koyama, Katsuji, 2002, Butsuri, 57, 638-645
• [12] Deep Near-Infrared Observations of the X-Ray--emitting Class 0 Protostar Candidates in the Orion Molecular Cloud 3
  Tsujimoto, Masahiro & Koyama, Katsuji & Tsuboi, Yohko & Chartas, George & Goto, Miwa & Kobayashi, Naoto & Terada, Hiroshi & Tokunaga, A. T., 2002, ApJ, 573, 270-274
• [11] Chandra and ASCA Observations of the X-Ray--brightest T Tauri Stars in the "$\rho$" Ophiuchi Cloud
  Imanishi, Kensuke & Tsujimoto, Masahiro & Koyama, Katsuji, 2002, ApJ, 572, 300-309
• [10] X-Ray Properties of Young Stellar Objects in OMC-2 and OMC-3 from the Chandra X-Ray Observatory
  Tsujimoto, Masahiro & Koyama, Katsuji & Tsuboi, Yohko & Goto, Miwa & Kobayashi, Naoto, 2002, ApJ, 566, 974-981

2001

• [9] X-Ray Detection from Bona Fide and Candidate Brown Dwarfs in the "$\rho$" Ophiuchi Cloud with Chandra
  Imanishi, Kensuke & Tsujimoto, Masahiro & Koyama, Katsuji, 2001, ApJ, 563, 361-366
• [8] ASCA Discovery of Diffuse 6.4 keV Emission near the Sagittarius C Complex: A New X-Ray Reflection Nebula
  Murakami, Hiroshi & Koyama, Katsuji & Tsujimoto, Masahiro & Maeda, Yoshitomo & Sakano, Masaaki, 2001, ApJ, 550, 297-300

2000

• [7] A Study of the Populations of X-Ray Sources in the Small Magellanic Cloud with ASCA
  Yokogawa, Jun & Imanishi, Kensuke & Tsujimoto, Masahiro & Nishiuchi, Mamiko & Koyama, Katsuji & Nagase, Fumiaki & Corbet, Robin H. D., 2000, ApJS, 128, 491-509
• [6] ASCA Observations of the Sagittarius B2 Cloud: An X-Ray Reflection Nebula
  Murakami, Hiroshi & Koyama, Katsuji & Sakano, Masaaki & Tsujimoto, Masahiro & Maeda, Yoshitomo, 2000, ApJ, 534, 283-290
• [5] Observation of Fe-line emission from Sagittarius B2 - Evidence for past activities of our galaxy
  Murakami, H. & Koyama, K. & Maeda, Y. & Sakano, M. & Nishiuchi, M. & Tsujimoto, M., 2000, ASR, 25, 579-582

1999

• [4] ASCA discovery of a Be X-ray pulsar in the SMC: AX J0051-733
  Imanishi, Kensuke & Yokogawa, Jun & Tsujimoto, Masahiro & Koyama, Katsuji, 1999, PASJ, 51, L21-L25
• [3] Discovery of a new X-ray pulsar, AX J0049-729, in the small magellanic cloud with ASCA
  Yokogawa, Jun & Imanishi, Kensuke & Tsujimoto, Masahiro & Kohno, Makoto & Koyama, Katsuji, 1999, PASJ, 51, 547-551
• [2] Further Studies of 1E 1740.7-2942 with ASCA
  Sakano, Masaaki & Imanishi, Kensuke & Tsujimoto, Masahiro & Koyama, Katsuji & Maeda, Yoshitomo, 1999, ApJ, 520, 316-323
• [1] Discovery of an X-ray pulsar in the SMC: AX J0058-7203
  Tsujimoto, Masahiro & Imanishi, Kensuke & Yokogawa, Jun & Koyama, Katsuji, 1999, PASJ, 51, 0