11:30 〜 11:45
[PAE20-10] 重力マイクロレンズによる系外惑星探査
★招待講演
キーワード：系外惑星、重力マイクロレンズ
Gravitational microlensing has an unique sensitivity to exoplanets outside
the snow-line down to the Earth-mass, where the planetary formation
is very active. The MOA-II carries out microlensing exoplanet search
toward the Galactic Bulge in New Zealand. We detect about 4 exoplanets
among about 600 microlensing events every year including the Jupiter-Saturn
analog and Neptune analog. We derive the planet/star mass ratio function.
The PRIME (PRime-focus Infrared Microlensing Experiment) project is planning
to conduct the microlensing survey toward the central region of the Galactic bulge
in H-band by using new 1.8m wide FOV telescope in South Africa for the first time.
The Wide Field Infrared Survey Telescope (WFIRST) is the NASA's future
large space mission, which is scheduled to be launched in 2025.
The exoplanet microlensing program is one of the primary science of WFIRST.
WFIRST will find about 3000 exoplanets by the high precision continuous
survey with 15 min. cadence, which is sensitive to all the solar system
analogs except the mercury. WFIRST can complete the statistical census of
planetary systems in the Galaxy, from the outer habitable zone to the outside
of the snow-line and gravitationally unbound planets – a discovery space
inaccessible to other exoplanet detection techniques.
the snow-line down to the Earth-mass, where the planetary formation
is very active. The MOA-II carries out microlensing exoplanet search
toward the Galactic Bulge in New Zealand. We detect about 4 exoplanets
among about 600 microlensing events every year including the Jupiter-Saturn
analog and Neptune analog. We derive the planet/star mass ratio function.
The PRIME (PRime-focus Infrared Microlensing Experiment) project is planning
to conduct the microlensing survey toward the central region of the Galactic bulge
in H-band by using new 1.8m wide FOV telescope in South Africa for the first time.
The Wide Field Infrared Survey Telescope (WFIRST) is the NASA's future
large space mission, which is scheduled to be launched in 2025.
The exoplanet microlensing program is one of the primary science of WFIRST.
WFIRST will find about 3000 exoplanets by the high precision continuous
survey with 15 min. cadence, which is sensitive to all the solar system
analogs except the mercury. WFIRST can complete the statistical census of
planetary systems in the Galaxy, from the outer habitable zone to the outside
of the snow-line and gravitationally unbound planets – a discovery space
inaccessible to other exoplanet detection techniques.