典型文献
Measuring Microlensing Parallax via Simultaneous Observations from Chinese Space Station Telescope and Roman Telescope
文献摘要：
Simultaneous observations from two spatially well-separated telescopes can lead to measurements of the microlensing parallax parameter,an important quantity toward the determinations of the lens mass.The separation between Earth and Sun-Earth L2 point,～0.01 au,is ideal for parallax measurements of short and ultra-short(～1 hr to 10 days)microlensing events,which are candidates of free-floating planet(FFP)events.In this work,we study the potential of doing so in the context of two proposed space-based missions,the Chinese Space Station Telescope(CSST)in a low-Earth orbit(LEO)and the Nancy Grace Roman Space Telescope(Roman)at L2.We show that joint observations of the two can directly measure the microlensing parallax of nearly all FFP events with timescales tE(≤)10 days as well as planetary(and stellar binary)events that show caustic crossing features.The potential of using CSST alone in measuring microlensing parallax is also discussed.
文献关键词：
中图分类号：
作者姓名：
Shi Yan;Wei Zhu
作者机构：
Department of Astronomy,Tsinghua University,Beijing 100084,China;School of Physics,Nankai University,Tianjin 300071,China;Canadian Institute for Theoretical Astrophysics,University of Toronto,Toronto,ON M5S 3H8,Canada
文献出处：
引用格式：
[1]Shi Yan;Wei Zhu-.Measuring Microlensing Parallax via Simultaneous Observations from Chinese Space Station Telescope and Roman Telescope)[J].天文和天体物理学研究,2022(02):62-71
A类：
Microlensing,microlensing,caustic
B类：
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AB值：
0.529158
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