Imaging Young Giant Planets From Ground and Space
Imaging Young Giant Planets From Ground and Space
复制标题
从地面和太空对年轻的巨行星进行成像
DOI：
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发表时间：
2010
期刊：
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通讯作者：
M. Rieke
中科院分区：
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作者：
C. Beichman;J. Krist;J. Trauger;T. Greene;B. Oppenheimer;A. Sivaramakrishnan;R. Doyon;A. Boccaletti;T. Barman;M. Rieke
高对比度成像可以发现和表征附近年轻恒星和最近的M星周围的气体巨行星，通过探索间接方法无法达到的轨道分离来补充径向速度和天体测量搜索。地面日冕仪已经在附近年轻恒星的25个Au范围内进行探测，以寻找小至103 M Jup的天体。本文对比了詹姆斯韦伯太空望远镜（JWST）的近期和未来地面能力与高对比度成像模式。蒙特卡洛模型显示，JWST可以在广泛的轨道分离范围内检测质量小至0.2 M Jup的行星。我们提出了新的计算行星亮度作为特定JWST过滤器的质量和年龄的函数，并扩展到0.1 M Jup。
High-contrast imaging can find and characterize gas giant planets around nearby young stars and the closest M stars, complementing radial velocity and astrometric searches by exploring orbital separations inaccessible to indirect methods. Ground-based coronagraphs are already probing within 25 AU of nearby young stars to find objects as small as ∼3 M Jup. This paper contrasts near-term and future ground-based capabilities with high-contrast imaging modes of the James Webb Space Telescope (JWST). Monte Carlo modeling reveals that JWST can detect planets with masses as small as 0.2 M Jup across a broad range of orbital separations. We present new calculations for planet brightness as a function of mass and age for specific JWST filters and extending to 0.1 M Jup.