Journal Article

Planet Hunters: the first two planet candidates identified by the public using the <i>Kepler</i> public archive data*

Debra A. Fischer, Megan E. Schwamb, Kevin Schawinski, Chris Lintott, John Brewer, Matt Giguere, Stuart Lynn, Michael Parrish, Thibault Sartori, Robert Simpson, Arfon Smith, Julien Spronck, Natalie Batalha, Jason Rowe, Jon Jenkins, Steve Bryson, Andrej Prsa, Peter Tenenbaum, Justin Crepp, Tim Morton, Andrew Howard, Michele Beleu, Zachary Kaplan, Nick vanNispen, Charlie Sharzer, Justin DeFouw, Agnieszka Hajduk, Joe P. Neal, Adam Nemec, Nadine Schuepbach and Valerij Zimmermann

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 419, issue 4, pages 2900-2911
Published in print February 2012 | ISSN: 0035-8711
Published online January 2012 | e-ISSN: 1365-2966 | DOI:
Planet Hunters: the first two planet candidates identified by the public using the Kepler public archive data*

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Planet Hunters is a new citizen science project designed to engage the public in an exoplanet search using NASA Kepler public release data. In the first month after launch, users identified two new planet candidates which survived our checks for false positives. The follow-up effort included analysis of Keck HIRES spectra of the host stars, analysis of pixel centroid offsets in the Kepler data and adaptive optics imaging at Keck using NIRC2. Spectral synthesis modelling coupled with stellar evolutionary models yields a stellar density distribution, which is used to model the transit orbit. The orbital periods of the planet candidates are 9.8844 ± 0.0087 d (KIC 10905746) and 49.7696 ± 0.000 39 d (KIC 6185331), and the modelled planet radii are 2.65 and 8.05 R. The involvement of citizen scientists as part of Planet Hunters is therefore shown to be a valuable and reliable tool in exoplanet detection.

Keywords: stars: individual: KIC 10905746; stars: individual: KIC 6185331; planetary systems

Journal Article.  6777 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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