http://arxiv.org/abs/2112.07496
Proper photometric data are challenging to obtain in the K2 mission of the Kepler space telescope due to strong systematics caused by the two-wheel-mode operation. It is especially true for variable stars wherein physical phenomena occur on timescales similar to the instrumental signals. We originally developed a method with the aim to extend the photometric aperture to be able to compensate the motion of the telescope which we named Extended Aperture Photometry (EAP). Here we present the outline of the automatized version of the EAP method, an open-source pipeline called autoEAP. We compare the light curve products to other photometric solutions for examples chosen from high-amplitude variable stars. Besides the photometry, we developed a new detrending method, which is based on phase dispersion minimization and is able to eliminate long-term instrumental signals for periodic variable stars.
A. Bódi, P. Szabó, E. Plachy, et. al.
Wed, 15 Dec 21
5/85
Comments: 15 pages, 12 figures. Accepted for publication in PASP. Code available on GitHub: this https URL Light curve data available: this https URL
You must be logged in to post a comment.