The Library
Single transit candidates from K2 : detection and period estimation
Tools
Osborn, Hugh P., Armstrong, David J., Brown, D. J. A., McCormac, J. J., Doyle, A. P., Louden, Tom M., Kirk, James, Spake, Jessica J., Lam, K. W. F., Walker, S. R., Faedi, Francesca and Pollacco, Don (2016) Single transit candidates from K2 : detection and period estimation. Monthly Notices of the Royal Astronomical Society, 457 (3). pp. 2273-2286. doi:10.1093/mnras/stw137 ISSN 0035-8711.
|
PDF
WRAP_4036529-px-080416-mnras-2016-osborn-2273-86_.pdf - Published Version - Requires a PDF viewer. Download (8Mb) | Preview |
Official URL: http://dx.doi.org/10.1093/mnras/stw137
Abstract
Photometric surveys such as Kepler have the precision to identify exoplanet and eclipsing binary candidates from only a single transit. K2, with its 75 d campaign duration, is ideally suited to detect significant numbers of single-eclipsing objects. Here we develop a Bayesian transit-fitting tool (‘Namaste: An Mcmc Analysis of Single Transit Exoplanets’) to extract orbital information from single transit events. We achieve favourable results testing this technique on known Kepler planets, and apply the technique to seven candidates identified from a targeted search of K2 campaigns 1, 2 and 3. We find EPIC203311200 to host an excellent exoplanet candidate with a period, assuming zero eccentricity, of 540+410 −230 d and a radius of 0.51 ± 0.05RJup. We also find six further transit candidates for which more follow-up is required to determine a planetary origin. Such a technique could be used in the future with TESS, PLATO and ground-based photometric surveys such as NGTS, potentially allowing the detection of planets in reach of confirmation by Gaia.
Item Type: | Journal Article | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Subjects: | Q Science > QB Astronomy | ||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||||
Library of Congress Subject Headings (LCSH): | Satellites, Extrasolar planets -- Detection | ||||||||||
Journal or Publication Title: | Monthly Notices of the Royal Astronomical Society | ||||||||||
Publisher: | Oxford University Press | ||||||||||
ISSN: | 0035-8711 | ||||||||||
Official Date: | 11 April 2016 | ||||||||||
Dates: |
|
||||||||||
Volume: | 457 | ||||||||||
Number: | 3 | ||||||||||
Number of Pages: | 14 | ||||||||||
Page Range: | pp. 2273-2286 | ||||||||||
DOI: | 10.1093/mnras/stw137 | ||||||||||
Status: | Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||
Date of first compliant deposit: | 18 April 2016 | ||||||||||
Date of first compliant Open Access: | 19 April 2016 | ||||||||||
Funder: | University of Warwick Vice Chancellor Scholarship, Seventh Framework Programme (European Commission) (FP7), United States. National Aeronautics and Space Administration (NASA) | ||||||||||
Grant number: | 313014 (FP7), NNX09AF08G (NASA), NAS5-26555 (NASA) |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |
Downloads
Downloads per month over past year