Speckle camera observations for the NASA Kepler mission follow-up program
Article
Article Title | Speckle camera observations for the NASA Kepler mission follow-up program |
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ERA Journal ID | 1048 |
Article Category | Article |
Authors | Howell, Steve B. (Author), Everett, Mark E. (Author), Sherry, William (Author), Horch, Elliott (Author) and Ciardi, David R. (Author) |
Journal Title | The Astronomical Journal |
Journal Citation | 142 (1), pp. 19-27 |
Article Number | 19 |
Number of Pages | 9 |
Year | 2011 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-6256 |
1538-3881 | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/0004-6256/142/1/19 |
Web Address (URL) | http://iopscience.iop.org/article/10.1088/0004-6256/142/1/19 |
Abstract | We present the first results from a speckle imaging survey of stars classified as candidate exoplanet host stars discovered by the Kepler mission. We use speckle imaging to search for faint companions or closely aligned background stars that could contribute flux to the Kepler light curves of their brighter neighbors. Background stars are expected to contribute significantly to the pool of false positive candidate transiting exoplanets discovered by the Kepler mission, especially in the case that the faint neighbors are eclipsing binary stars. Here, we describe our Kepler follow-up observing program, the speckle imaging camera used, our data reduction, and astrometric and photometric performance. Kepler stars range from R = 8 to 16 and our observations attempt to provide background non-detection limits 5-6mag fainter and binary separations of ∼0.05-2.0 arcsec. We present data describing the relative brightness, separation, and position angles for secondary sources, as well as relative plate limits for non-detection of faint nearby stars around each of 156 target stars. Faint neighbors were found near 10 of the stars. |
Keywords | instrumentation: high angular resolution; planets and satellites; photometric techniques |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 519999. Other physical sciences not elsewhere classified |
Public Notes | For access to this article, please click on the URL link provided. |
Byline Affiliations | National Optical Astronomy Observatory, United States |
Southern Connecticut State University, United States | |
National Aeronautics and Space Administration (NASA), United States | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q433q/speckle-camera-observations-for-the-nasa-kepler-mission-follow-up-program
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