宇宙科学談話会

ISAS Space Science Colloquium & Space Science Seminar

ENGLISH

Searching for Planets like Earth around Late-M Dwarfs using Subaru/IRD

佐藤 文衛 特定准教授(Bunei SATO, Specific associate professor)
東京工業大学(Tokyo Institute of Technology)

We plan to conduct an extensive, precise near-infrared (NIR) RV survey focused on late-M dwarf stars (LMDs) using newly commissioned InfraRed Doppler (IRD) instrument and Subaru telescope. IRD is an echelle spectrometer that covers the wavelengths from 0.97 to 1.75 m with a high spectral resolution (70,000). IRD's high instrumental stability and its use of a laser frequency comb as a very precise wavelength reference allow us to measure the RVs of LMDs with a precision of 2 m/s or better.
The goals of our survey are: (1) to discover small rocky planets in the habitable zone around these low-mass stars, and (2) to uncover the distribution of planetary systems containing Earth-mass planets and more massive planets. We here outline our planet search project and also introduce other observations that will be possible using IRD.

Place: Shin-A 2F Conf. room A (1257) / 新A棟2階会議室A(1257号室)