f3: Full Frame Fotometry for Kepler Full Frame Images
Abstract
Light curves from the Kepler telescope rely on "postage stamp" cutouts of a few pixels near each of 200,000 target stars. These light curves are optimized for the detection of short-term signals like planet transits but induce systematics that overwhelm long-term variations in stellar flux. Longer-term effects can be recovered through analysis of the Full Frame Images, a set of calibration data obtained monthly during the Kepler mission. The Python package f3 analyzes the Full Frame Images to infer long-term astrophysical variations in the brightness of Kepler targets, such as magnetic activity or sunspots on slowly rotating stars.
- Publication:
-
Astrophysics Source Code Library
- Pub Date:
- May 2017
- Bibcode:
- 2017ascl.soft05006M
- Keywords:
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- Software;
- NASA;
- Kepler