Open Source Cloud Computing for Transiting Planet Discovery
Abstract
We provide an update on the development of the open-source software suite designed to detect exoplanet transits using high-performance and cloud computing resources (https://github.com/openEXO). Our collaboration continues to grow as we are developing algorithms and codes related to the detection of transit-like events, especially in Kepler data, Kepler 2.0 and TESS data when available. Extending the work of Berriman et al. (2010, 2012), we describe our use of the XSEDE-Gordon supercomputer and Amazon EMR cloud to search for aperiodic transit-like events in Kepler light curves. Such events may be caused by circumbinary planets or transiting bodies, either planets or stars, with orbital periods comparable to or longer than the observing baseline such that only one transit is observed. As a bonus, we use the same code to find stellar flares too; whereas transits reduce the flux in a box-shaped profile, flares increase the flux in a fast-rise, exponential-decay (FRED) profile that nevertheless can be detected reliably with a square-wave finder.
- Publication:
-
American Astronomical Society Meeting Abstracts #224
- Pub Date:
- June 2014
- Bibcode:
- 2014AAS...22412022M