双星透镜 OGLE-2015_BLG-0232 的首次评估
地球与行星天体物理
2019-01-09 v1
摘要
我们给出对微透镜事件 OGLE-2015-BLG-0232 的分析。该事件因两个原因而难以刻画。首先，由于满月的临近影响了测光质量，焦散穿越期间光变曲线采样不佳。此外，由于该事件与一颗邻近的 K 型矮星相混合，源亮度难以估计。我们发现光变曲线偏差很可能源于一颗密近棕矮星伴星（即 s = 0.55 且 q = 0.06），但透镜的确切性质仍未知。我们最后讨论了未来利用后续观测估算透镜质量与距离的可能性。
引用
@article{arxiv.1811.02715,
title = {First assessment of the binary lens OGLE-2015_BLG-0232},
author = {E. Bachelet and V. Bozza and C. Han and A. Udalski and I. A. Bond and J. -P. Beaulieu and R. A. Street and J. -I Kim and D. M. Bramich and A. Cassan and M. Dominik and R. Figuera Jaimes and K. Horne and M. Hundertmark and S. Mao and J. Menzies and C. Ranc and R. Schmidt and C. Snodgrass and I. A. Steele and Y. Tsapras and J. Wambsganss and P. Mróz and I. Soszyński and M. K. Szymański and J. Skowron and P. Pietrukowicz and S. Kozłowski and R. Poleski and K. Ulaczyk and M. Pawlak and F. Abe and R. Barry and D. P. Bennett and A. Bhattacharya and M. Donachie and A. Fukui and Y. Hirao and Y. Itow and K. Kawasaki and I. Kondo and N. Koshimoto and M. Cheung Alex Li and Y. Matsubara and Y. Muraki and S. Miyazaki and M. Nagakane and N. J. Rattenbury and H. Suematsu and D. J. Sullivan and T. Sumi and D. Suzuki and P. J. Tristram and A. Yonehara},
journal= {arXiv preprint arXiv:1811.02715},
year = {2019}
}
备注
Accepted in ApJ