Detection of Potential Transit Signals in 17 Quarters of Kepler Mission Data
| Autor: | Anima Sabale, Todd C. Klaus, Bruce D. Clarke, Christopher J. Burke, Susan E. Thompson, Joseph Catanzarite, Christopher E. Henze, Forrest R. Girouard, Jeffrey C. Smith, Jennifer R. Campbell, Peter Tenenbaum, Robert L. Morris, Jon M. Jenkins, Sean McCauliff, Shawn Seader, Joseph D. Twicken, Khadeejah A. Zamudio, Jie Li, Miles T. Cote, Akm Kamal Uddin |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Physics
Earth and Planetary Astrophysics (astro-ph.EP) Data processing FOS: Physical sciences Astronomy and Astrophysics Planetary system Signal Exoplanet Data set Set (abstract data type) Space and Planetary Science Planet Circumstellar habitable zone Algorithm Astrophysics - Earth and Planetary Astrophysics |
| Popis: | We present the results of a search for potential transit signals in the full 17-quarter data set collected during Kepler's primary mission that ended on 2013 May 11, due to the on board failure of a second reaction wheel needed to maintain high precision, fixed, pointing. The search includes a total of targets, of which were observed in every quarter and were observed in a subset of the 17 quarters. For the first time, this multi-quarter search is performed on data that have been fully and uniformly reprocessed through the newly released version of the Data Processing Pipeline. We find a total of targets that contain at least one signal that meets our detection criteria: periodicity of the signal, a minimum of three transit events, an acceptable signal-to-noise ratio, and four consistency tests that suppress many false positives. Each target containing at least one transit-like pulse sequence is searched repeatedly for other signals that meet the detection criteria, indicating a multiple planet system. This multiple planet search adds an additional 7698 transit-like signatures for a total of . Comparison of this set of detected signals with a set of known and vetted transiting planet signatures in the Kepler field of view shows that the recovery rate of the search is 90.3%. We review ensemble properties of the detected signals and present various metrics useful in validating these potential planetary signals. We highlight previously undetected transit-like signatures, including several that may represent small objects in the habitable zone of their host stars. |
| Databáze: | OpenAIRE |
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