Automated Extended Aperture Photometry for K2 RR Lyrae Stars

Plachy, Emese and Szabó, P. and Bódi, Attila and Molnár, László and Szabó, Róbert (2021) Automated Extended Aperture Photometry for K2 RR Lyrae Stars. ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES, 529. pp. 338-339. ISSN 1050-3390

Preview

Text 2009.08786.pdf Available under License Creative Commons Attribution. Download (1MB) | Preview

Abstract

Light curves for RR Lyrae stars can be difficult to obtain properly in the K2 mission due to the similarities between the timescales of the observed physical phenomena and the instrumental signals appearing in the data. We developed a new photometric method called Extended Aperture Photometry (EAP), a key element of which is to extend the aperture to an optimal size to compensate for the motion of the telescope and to collect all available flux from the star before applying further corrections. We determined the extended apertures for individual stars by hand so far. Now we managed to automate the pipeline that we intend to use for the nearly four thousand RR Lyrae targets observed in the K2 mission. We present the outline of our pipeline and make some comparisons to other photometric solutions.

Actions (login required)

Edit Item