Properties of M31. V: 298 Eclipsing Binaries from PAndromeda

Abstract

The goal of this work is to conduct a photometric study of eclipsing binaries in M31. We apply a modified box-fitting algorithm to search for eclipsing binary candidates and determine their period. We classify these candidates into detached, semi-detached, and contact systems using the Fourier decomposition method. We cross-match the position of our detached candidates with the photometry from Local Group Survey (Massey et al. 2006) and select 13 candidates brighter than 20.5 magnitude in V. The relative physical parameters of these detached candidates are further characterized with Detached Eclipsing Binary Light curve fitter (DEBiL) by Devor (2005). We will followup the detached eclipsing binaries spectroscopically and determine the distance to M31.

19 pages, 7 figures, 1 table, ApJ in press

References in corpus (5)

• The GALEX Ultraviolet Atlas of Nearby Galaxies
• A Survey of Local Group Galaxies Currently Forming Stars. I. UBVRI Photometry of Stars in M31 and M33
• Eclipsing binaries suitable for distance determination in the Andromeda galaxy
• Eclipsing binaries in the MACHO database: New periods and classifications for 3031 systems in the Large Magellanic Cloud
• Properties of M31. II: A Cepheid disk sample derived from the first year of PS1 PAndromeda data

Cited by in corpus (4)

• A sub-2% Distance to M31 from Photometrically Homogeneous Near-Infrared Cepheid Period-Luminosity Relations Measured with the Hubble Space Telescope
• Zwicky Transient Facility and Globular Clusters: the Period-Luminosity and Period-Luminosity-Color Relations for Late-Type Contact Binaries
• VI-Band Follow-Up Observations of Ultra-Long-Period Cepheid Candidates in M31
• Absolute dimensions of the low-mass eclipsing binary system NSVS 10653195