VLT、GROND 与丹麦望远镜对 TRAPPIST-1 系统凌星的观测
地球与行星天体物理
2022-09-22 v2
摘要
TRAPPIST-1 是一颗超冷矮星，拥有七颗已知凌星行星。我们展示了利用 ESO 拉西拉（丹麦 1.54 米望远镜与 2.2 米 MPI 望远镜）和帕瑞纳（甚大望远镜单元望远镜 1）的三台望远镜对该系统获得的测光数据。我们从丹麦望远镜获得 18 条光变曲线，从 2.2 米望远镜获得 8 条，从 VLT 获得 4 条。由此我们测得其中四颗行星（b、c、f、g）的 25 个凌星中点时刻。这些光变曲线与凌星中点时刻将有助于确定行星的质量和半径，这些参数因引力相互作用而表现出凌星时刻变化。
引用
@article{arxiv.2207.05874,
title = {VLT, GROND and Danish Telescope observations of transits in the TRAPPIST-1 system},
author = {John Southworth and L. Mancini and M. Dominik and U. G. Jørgensen and V. Bozza and M. J. Burgdorf and R. Figuera Jaimes and L. K. Haikala and Th. Henning and T. C. Hinse and M. Hundertmark and P. Longa-Peña and M. Rabus and S. Rahvar and S. Sajadian and J. Skottfelt and C. Snodgrass},
journal= {arXiv preprint arXiv:2207.05874},
year = {2022}
}
备注
Accepted for publication in The Observatory Magazine. 11 pages, 3 tables, 3 figures. Version 2 is corrected for the misidentification of the planet causing one of the transits