| Abstract |
JASMINE ("Small JASMINE Mission", which was selected by ISAS/JAXA as the unique candidate for the JAXA Competitive Middle-Class Science Missions No.3.) is a space mission, aiming to realize the world's first near-infrared high-precision astrometry and time-series photometry. One of the scientific objectives (Galactic center archeology) is to reveal the Milky Way's central core structure and its formation history, including the evolution of supermassive black hole, by measuring the distances and motions of stars located in the Galactic central region. It is also a scientific objective to explore the formation history of the Milky Way by revealing the evolution of the Galactic structures, which caused the radial migration of the Sun and other stars through the performance of the Galactic center archeology. Furthermore, it is an important scientific objective of JASMINE to find Earth-like habitable exoplanets around mid-M-type stars, taking advantage of the time-series photometry capability required for the precision in the infrared astrometry. For these scientific objectives, JASMINE will create catalogs of necessary physical information such as annual parallaxes and proper motions of stars, and time-series data of photometric data, and make them available to researchers around the world. JASMINE is promoting the project plan with the aim of gradually improving the development phase at JAXA. We are considering scrutinizing and expanding scientific outputs that can be expected from JASMINE. In addition, we are proceeding with the development of observation instruments, including the development to use domestic infrared detectors in space, and the development of data analysis software (including international cooperation with Gaia members in Europe). In this talk, I will start with the introduction of astrometry, which is one of the main objectives of JASMINE and some achievements of the optical space astrometry mission "Gaia" in operation by the European Space Agency (ESA). Furthermore, I will talk about the overall outline and recent situation of the progress of JASMINE. |
