Expected Large Synoptic Survey Telescope (LSST) Yield of Eclipsing Binary Stars

Abstract

In this paper we estimate the Large Synoptic Survey Telescope (LSST) yield of eclipsing binary stars, which will survey ~20,000 square degrees of the southern sky during the period of 10 years in 6 photometric passbands to r ~ 24.5. We generate a set of 10,000 eclipsing binary light curves sampled to the LSST time cadence across the whole sky, with added noise as a function of apparent magnitude. This set is passed to the Analysis of Variance (AoV) period finder to assess the recoverability rate for the periods, and the successfully phased light curves are passed to the artificial intelligence-based pipeline EBAI to assess the recoverability rate in terms of the eclipsing binaries' physical and geometric parameters. We find that, out of ~24 million eclipsing binaries observed by LSST with S/N>10 in mission life-time, ~28% or 6.7 million can be fully characterized by the pipeline. Of those, ~25% or 1.7 million will be double-lined binaries, a true treasure trove for stellar astrophysics.

19 pages, 7 figures. Accepted to AJ, to appear in issue 142:2 (Aug 2011)

References in corpus (3)

• Automated supervised classification of variable stars I. Methodology
• Deep MMT Transit Survey of the Open Cluster M37 II: Variable Stars
• Artificial Intelligence Approach to the Determination of Physical Properties of Eclipsing Binaries. I. The EBAI Project

Cited by in corpus (10)

• Physics Of Eclipsing Binaries. II. Towards the Increased Model Fidelity
• Prospects for detection of detached double white dwarf binaries with Gaia, LSST and LISA
• Early-type Eclipsing Binaries with Intermediate Orbital Periods
• The EB Factory Project I. A Fast, Neural Net Based, General Purpose Light Curve Classifier Optimized for Eclipsing Binaries
• Initial Estimates on the Performance of the $LSST$ on the Detection of Eclipsing Binaries
• A Precision Multi-Band Two-Epoch Photometric Catalog of 44 Million Sources in the Northern Sky from Combination of the USNO-B and Sloan Digital Sky Survey Catalogs
• Simulating Eclipsing Binary Yields of the Rubin Observatory in the Galactic Field and Star Clusters
• The impact of Gaia and LSST on binary stars and exo-planets
• GRAPE: Genetic Routine for Astronomical Period Estimation
• Stellar multiplicity: an interdisciplinary nexus