微引力透镜事件OGLE-2013-BLG-446中的红噪声与行星解释之争
地球与行星天体物理
2015-10-29 v2
摘要
对于所有系外行星候选体，所声称探测的可靠性需要通过仔细研究数据中的系统误差来评估，以最小化假阳性率。我们提出一种在微引力透镜数据集中研究此类系统误差的方法，并以微引力透镜事件OGLE-2013-BLG-0446作为案例研究。该事件从全球多个站点观测，其高放大率（）使我们能够研究地面与周年视差的影响。在事件仍在进行时的实时建模表明，透镜星存在一颗极低质量伴星（），从而引致对光变曲线的实质性后续覆盖。我们测试并比较了光变曲线的不同模型，并得出结论：当考虑系统误差时，数据并不支持行星解释。
引用
@article{arxiv.1510.02724,
title = {Red noise versus planetary interpretations in the microlensing event OGLE-2013-BLG-446},
author = {E. Bachelet and D. M. Bramich and C. Han and J. Greenhill and R. A. Street and A. Gould and G. D Ago and K. AlSubai and M. Dominik and R. Figuera Jaimes and K. Horne and M. Hundertmark and N. Kains and C. Snodgrass and I. A. Steele and Y. Tsapras and M. D. Albrow and V. Batista and J. -P. Beaulieu and D. P. Bennett and S. Brillant and J. A. R. Caldwell and A. Cassan and A. Cole and C. Coutures and S. Dieters and D. Dominis Prester and J. Donatowicz and P. Fouque and K. Hill and J. -B. Marquette and J. Menzies and C. Pere and C. Ranc and J. Wambsganss and D. Warren and L. Andrade de Almeida and J. -Y. Choi and D. L. DePoy and Subo Dong and L. -W. Hung and K. H. Hwang and F. Jablonski and Y. K. Jung and S. Kaspi and N. Klein and C. -U. Lee and D. Maoz and J. A. Munoz and D. Nataf and H. Park and R. W. Pogge and D. Polishook and I. -G. Shin and A. Shporer and J. C. Yee F. Abe and A. Bhattacharya and I. A. Bond and C. S. Botzler and M. Freeman and A. Fukui and Y. Itow and N. Koshimoto and C. H. Ling and K. Masuda and Y. Matsubara and Y. Muraki and K. Ohnishi and L. C. Philpott and N. Rattenbury and To. Saito and D. J. Sullivan and T. Sumi and D. Suzuki and P. and J. Tristram and A. Yonehara and V. Bozza and S. Calchi Novati and S. Ciceri and P. Galianni and S. H. Gu and K. Harpsoe and T. C. Hinse and U. G. Jorgensen and D. Juncher and H. Korhonen and L. Mancini and C. Melchiorre and A. Popovas and A. Postiglione and M. Rabus and S. Rahvar and R. W. Schmidt and G. Scarpetta and J. Skottfelt and John Southworth and An. Stabile and J. Surdej and X. -B. Wang and O. Wertz},
journal= {arXiv preprint arXiv:1510.02724},
year = {2015}
}
备注
accepted ApJ 2015