Searching for white dwarf variables in TESS data

Abstract

A sample of 4 thousands Gaia sources with apparent $G$-band magnitudes of $<17$ and trigonometric parallaxes of $>3.33$ milli-arcseconds were cross-matched to the Transiting Exoplanet Survey high level science products and the Full-Frame Images in order to extract the light curves of possible white dwarf variables. Most of the targets in the sample were observed in at least 27-day observing cycle with 30-minutes cadence. Based on Lomb-Scargle periodogram constructed from de-trended light curves, more than 600 sources have indication of periodic variability. This paper presents the early results from the identification.

7 pages, 3 figures, proceeding of the 2nd International Symposium on Space Science

References in corpus (6)

• The Gaia mission
• The K2 Mission: Characterization and Early results
• A catalogue of white dwarfs in Gaia EDR3
• A search for transiting planets around FGKM dwarfs and sub-giants in the TESS Full Frame Images of the Southern ecliptic hemisphere
• WD1032+011, an inflated brown dwarf in an old eclipsing binary with a white dwarf
• A search for variable subdwarf B stars in TESS Full Frame Images -- I. Variable objects in the southern ecliptic hemisphere

Cited by in corpus (1)

• Characterisation of the eclipsing post-common-envelope binary TIC 60040774