SEEDS 围绕年轻恒星天体的系外行星高对比度成像巡天
地球与行星天体物理
2017-02-15 v2 太阳与恒星天体物理
摘要
我们展示了作为 Subaru 望远镜上 SEEDS 巡天一部分所探索的68个年轻恒星天体（YSOs）的高对比度观测。我们的目标是非常年轻（< Myr）的恒星，它们通常拥有可能正在形成行星的原行星盘。我们在距中心星角距离 1\arcsec\ 处达到了 -- 的典型对比度，对应于（假设热启动演化模型）在 70 AU 处典型质量灵敏度 10 和在 140 AU 处 6 。我们探测到 HIP 79462 的一个新恒星伴星，并确认了亚恒星天体 GQ Lup b 和 ROXs 42B b。另外六个伴星候选体等待后续观测以检验共同自行。我们的 SEEDS YSO 观测探测了最年轻年龄段的行星和棕矮星种群；这些可与针对较年长恒星的巡天结果进行比较。我们的样本及相关观测结果将有助于实现巨行星形成的详细统计分析。
引用
@article{arxiv.1604.04697,
title = {The SEEDS High Contrast Imaging Survey of Exoplanets around Young Stellar Objects},
author = {Taichi Uyama and Jun Hashimoto and Masayuki Kuzuhara and Satoshi Mayama and Eiji Akiyama and Thayne Currie and John Livingston and Tomoyuki Kudo and Nobuhiko Kusakabe and Lyu Abe and Wolfgang Brandner and Timothy D. Brandt and Joseph C. Carson and Sebastian Egner and Markus Feldt and Miwa Goto and Carol A. Grady and Olivier Guyon and Yutaka Hayano and Masahiko Hayashi and Saeko S. Hayashi and Thomas Henning and Klaus W. Hodapp and Miki Ishii and Masanori Iye and Markus Janson and Ryo Kandori and Gillian R. Knapp and Jungmi Kwon and Taro Matsuo and Michael W. Mcelwain and Shoken Miyama and Jun-Ichi Morino and Amaya Moro-Martin and Tetsuo Nishimura and Tae-Soo Pyo and Eugene Serabyn and Takuya Suenaga and Hiroshi Suto and Ryuji Suzuki and Yasuhiro H. Takahashi and Michihiro Takami and Naruhisa Takato and Hiroshi Terada and Christian Thalmann and Edwin L. Turner and Makoto Watanabe and John Wisniewski and Toru Yamada and Hideki Takami and Tomonori Usuda and Motohide Tamura},
journal= {arXiv preprint arXiv:1604.04697},
year = {2017}
}
备注
31pages, 13 figures, accepted to AJ