RED NOISE VERSUS PLANETARY INTERPRETATIONS IN THE MICROLENSING EVENT OGLE-2013-BLG-446

	RED NOISE VERSUS PLANETARY INTERPRETATIONS IN THE MICROLENSING EVENT OGLE-2013-BLG-446
	Bachelet, E.1; Bramich, D. M.1; Han, C.2; Greenhill, J.3; Street, R. A.4; Gould, A.5; D'Ago, G.6,7; AlSubai, K.1; Dominik, M.8; Jaimes, R. Figuera 8,9
刊名	ASTROPHYSICAL JOURNAL
	2015-10-20
卷号	812 期号:2
关键词	gravitational lensing: micro planetary systems techniques: photometric
ISSN号	0004-637X
通讯作者	Bachelet, E (reprint author), Qatar Fdn, Qatar Environm & Energy Res Inst, POB 5825, Doha, Qatar.
产权排序	第四十六完成单位
英文摘要	For all exoplanet candidates, the reliability of a claimed detection needs to be assessed through a careful study of systematic errors in the data to minimize the false positives rate. We present a method to investigate such systematics in microlensing data sets using the microlensing event OGLE-2013-BLG-0446 as a case study. The event was observed from multiple sites around the world and its high magnification (A(max) similar to 3000) allowed us to investigate the effects of terrestrial and annual parallax. Real-time modeling of the event while it was still ongoing suggested the presence of an extremely low-mass companion (similar to 3M(circle plus)) to the lensing star, leading to substantial follow-up coverage of the light curve. We test and compare different models for the light curve and conclude that the data do not favor the planetary interpretation when systematic errors are taken into account.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	GRAVITATIONAL LENSING EXPERIMENT ; DIFFERENCE IMAGE-ANALYSIS ; GALACTIC BULGE ; EARTH-MASS ; EXTRASOLAR PLANETS ; LIGHT CURVES ; FOLLOW-UP ; OGLE-III ; PARALLAX ; PHOTOMETRY
收录类别	SCI
原文出处	http://iopscience.iop.org/article/10.1088/0004-637X/812/2/136/meta
语种	英语
WOS记录号	WOS:000365206600048
公开日期	2016-06-01
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/9384]
专题	云南天文台_系外行星研究组云南天文台_中国科学院天体结构与演化重点实验室
作者单位	1.Qatar Environment and Energy Research Institute, Qatar Foundation, P.O. Box 5825, Doha, Qatar 2.Department of Physics, Chungbuk National University, Cheongju 361-763, Korea 3.School of Mathematics and Physics, University of Tasmania, Private Bag 37, Hobart, TAS 7001, Australia 4.Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive, Suite 102, Goleta, CA 93117, USA 5.Department of Astronomy, Ohio State University, 140 W. 18th Ave., Columbus, OH 43210, USA 6.Dipartimento di Fisica "E.R. Caianiello," Università di Salerno, Via Ponte Don Melillo, I-84084-Fisciano (SA), Italy 7.Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Napoli, Italy 8.SUPA, School of Physics & Astronomy, University of St Andrews, North Haugh, St Andrews KY16 9SS, UK 9.European Southern Observatory, Karl-Schwarzschild-Str. 2, D-85748 Garching bei München, Germany 10.Max Planck Institute for Solar System Research, Justus-von-Liebig-Weg 3, D-37077 Gttingen, Germany
推荐引用方式 GB/T 7714	Bachelet, E.,Bramich, D. M.,Han, C.,et al. RED NOISE VERSUS PLANETARY INTERPRETATIONS IN THE MICROLENSING EVENT OGLE-2013-BLG-446[J]. ASTROPHYSICAL JOURNAL,2015,812(2).
APA	Bachelet, E..,Bramich, D. M..,Han, C..,Greenhill, J..,Street, R. A..,...&Wang XB.(2015).RED NOISE VERSUS PLANETARY INTERPRETATIONS IN THE MICROLENSING EVENT OGLE-2013-BLG-446.ASTROPHYSICAL JOURNAL,812(2).
MLA	Bachelet, E.,et al."RED NOISE VERSUS PLANETARY INTERPRETATIONS IN THE MICROLENSING EVENT OGLE-2013-BLG-446".ASTROPHYSICAL JOURNAL 812.2(2015).