一颗环绕晚型星的超级木星：微引力透镜事件 OGLE-2012-BLG-0406 的精细化分析
地球与行星天体物理
2015-06-17 v2
摘要
我们基于来自 10 个不同天文台的数据，对微引力透镜事件 OGLE-2012-BLG-0406 的巡天及后续观测进行了详细分析。对光变曲线（尤其是扰动部分）的密集覆盖，使我们能够精确测量视差效应和透镜轨道运动。结合我们测得的透镜视差与从有限源效应确定的爱因斯坦角半径，我们估算了透镜系统的物理参数。我们发现该事件是由一颗质量为 的行星环绕一颗质量为 的早型 M 型恒星所引起的。透镜距离为 kpc，事件发生时宿主恒星与其行星之间的投影分离为 AU。我们发现，后续观测提供的额外覆盖（特别是在行星扰动期间）有助于更准确地确定透镜的物理参数。
引用
@article{arxiv.1310.2428,
title = {A Super-Jupiter orbiting a late-type star: A refined analysis of microlensing event OGLE-2012-BLG-0406},
author = {Y. Tsapras and J. -Y. Choi and R. A. Street and C. Han and V. Bozza and A. Gould and M. Dominik and J. -P. Beaulieu and A. Udalski and U. G. Jørgensen and T. Sumi and D. M. Bramich and P. Browne and K. Horne and M. Hundertmark and S. Ipatov and N. Kains and C. Snodgrass and I. A. Steele and K. A. Alsubai and J. M. Andersen and S. Calchi Novati and Y. Damerdji and C. Diehl and A. Elyiv and E. Giannini and S. Hardis and K. Harpsøe and T. C. Hinse and D. Juncher and E. Kerins and H. Korhonen and C. Liebig and L. Mancini and M. Mathiasen and M. T. Penny and M. Rabus and S. Rahvar and G. Scarpetta and J. Skottfelt and J. Southworth and J. Surdej and J. Tregloan-Reed and C. Vilela and J. Wambsganss and J. Skowron and R. Poleski and S. Kozłowski and Łukasz Wyrzykowski and M. K. Szymański and M. Kubiak and P. Pietrukowicz and G. Pietrzyński and I. Soszyński and K. Ulaczyk and M. D. Albrow and E. Bachelet and R. Barry and V. Batista and A. Bhattacharya and S. Brillant and J. A. R. Caldwell and A. Cassan and A. Cole and E. Corrales and Ch. Coutures and S. Dieters and D. Dominis Prester and J. Donatowicz and P. Fouqué and J. Greenhill and S. R. Kane and D. Kubas and J. -B. Marquette and J. Menzies and C. P`ere and K. R. Pollard and D. Wouters and G. Christie and D. L. DePoy and S. Dong and J. Drummond and B. S. Gaudi and C. B. Henderson and K. H. Hwang and Y. K. Jung and A. Kavka and J. -R. Koo and C. -U. Lee and D. Maoz and L. A. G. Monard and T. Natusch and H. Ngan and H. Park and R. W. Pogge and I. Porritt and I. -G. Shin and Y. Shvartzvald and T. G. Tan and J. C. Yee and F. Abe and D. P. Bennett and I. A. Bond and C. S. Botzler and M. Freeman and A. Fukui and D. Fukunaga and Y. Itow and N. Koshimoto and C. H. Ling and K. Masuda and Y. Matsubara and Y. Muraki and S. Namba and K. Ohnishi and N. J. Rattenbury and To. Saito and D. J. Sullivan and W. L. Sweatman and D. Suzuki and P. J. Tristram and N. Tsurumi and K. Wada and N. Yamai and P. C. M. Yock A. Yonehara},
journal= {arXiv preprint arXiv:1310.2428},
year = {2015}
}
备注
9 pages, 4 figures, accepted by ApJ