期刊
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
卷 72, 期 2, 页码 -出版社
OXFORD UNIV PRESS
DOI: 10.1093/pasj/psz145
关键词
planetary systems; stars: individual (PTFO 8-8695, CVSO 30); techniques: photometric
PTFO 8-8695 b (CVSO 30 b) is a young planet candidate whose host star is a similar to 2.6-Myrold T-Tauri star, and there have been continuous discussions about the nature of this system. To unveil the mystery of this system, we observed PTFO 8-8695 for around five years at optical and infrared bands simultaneously using the Kanata telescope at the Higashi-Hiroshima Observatory. Through our observations, we found that the reported fading event split into two: deeper but phase-shifted dip-A and shallower but equiphase dip-B. These dips disappeared at different epochs, and then, dip-B reappeared. Based on the observed wavelength dependence of dip depths, a dust clump and a precessing planet are likely origins of dip-A and B, respectively. Here we propose a precessing planet associated with a dust cloud scenario for this system. This scenario is consistent with the reported change in the depth of fading events, and even with the reported results, which were thought to be evidence against the planetary hypothesis.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据