期刊
ASTRONOMICAL JOURNAL
卷 145, 期 6, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0004-6256/145/6/148
关键词
binaries: eclipsing; catalogs; methods: data analysis; methods: statistical
资金
- NASA [NNX10AC52G, NAS5-26555]
- NASA's Science Mission Directorate
- National Aeronautics and Space Administration
- NASA Office of Space Science [NNX09AF08G]
- NASA [135910, NNX10AC52G] Funding Source: Federal RePORTER
The Kepler Eclipsing Binary Catalog (KEBC) describes 2165 eclipsing binaries identified in the 115 deg(2) Kepler Field based on observations from Kepler quarters Q0, Q1, and Q2. The periods in the KEBC are given in units of days out to six decimal places but no period errors are provided. We present the PEC (Period Error Calculator) algorithm, which can be used to estimate the period errors of strictly periodic variables observed by the Kepler Mission. The PEC algorithm is based on propagation of error theory and assumes that observation of every light curve peak/minimum in a long time-series observation can be unambiguously identified. The PEC algorithm can be efficiently programmed using just a few lines of C computer language code. The PEC algorithm was used to develop a simple model that provides period error estimates for eclipsing binaries in the KEBC with periods less than 62.5 days: log sigma(P) approximate to -5.8908 + 1.4425 (1 + log P), where P is the period of an eclipsing binary in the KEBC in units of days. KEBC systems with periods >= 62.5 days have KEBC period errors of similar to 0.0144 days. Periods and period errors of seven eclipsing binary systems in the KEBC were measured using the NASA Exoplanet Archive Periodogram Service and compared to period errors estimated using the PEC algorithm.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据