Luminosity function of contact binaries based on the ASAS survey

Abstract

The luminosity function for contact binary stars of the W~UMa-type is evaluated on the basis of the ASAS photometric project covering all stars south of delta= +28 within a magnitude range 8<V<13. Lack of colour indices enforced a limitation to 3373 systems with P<0.562 days (i.e. 73% of all systems with P<1 day) where a simplified Mv(log P) calibration could be used. The spatial density relative to the main sequence FGK stars of 0.2%, as established previously from the Hipparcos sample to V=7.5, is confirmed. While the numbers of contact binaries in the ASAS survey are large and thus the statistical uncertainties small, derivation of the luminosity function required a correction for missed systems with small amplitudes and with orbital periods longer than 0.562 days; the correction, by a factor of 3 times, carries an uncertainty of about 30%.

Submitted to MNRAS

References in corpus (7)

• Absolute Magnitude Calibration for the W UMa-type Systems Based on Hipparcos Data
• Contact Binaries of the Galactic Disk: Comparison of the Baade's Window and Open Cluster Samples
• W UMa-type Binary Stars in Globular Clusters
• The photometric-amplitude and mass-ratio distributions of contact binary stars
• A Comprehensive Catalogue of Variable Stars in the field of 47 Tucanae
• The 7.5 Magnitude Limit Sample of Bright Short-Period Binary Stars. I. How Many Contact Binaries Are There?
• Contact binary stars of the W UMa type as distance tracers

Cited by in corpus (40)

• The Zwicky Transient Facility Catalog of Periodic Variable Stars
• Dynamical evolution of active detached binaries on log Jo - log M diagram and contact binary formation
• The short period end of the contact binary period distribution based on the All Sky Automated Survey (ASAS)
• Angular momentum and mass evolution of contact binaries
• ZZ Piscis Austrinus (ZZ PsA): A bright red nova progenitor and the instability mass ratio of contact binary stars
• The evolutionary status of W Ursae Majoris-type systems
• Ultra-short Period Binaries from the Catalina Surveys
• The shortest period field contact binary
• On the minimum mass ratio of W UMa binaries
• A BVRcIc Survey of W Ursae Majoris Binaries
• Periodic Variability of Low-Mass Stars in SDSS Stripe 82
• The ASAS-SN Catalog of Variable Stars VII: Contact Binaries are Different Above and Below the Kraft Break
• Variable stars in the Globular Cluster NGC 2808
• Optical-Mid-Infrared Period-Luminosity Relations for W UMa-type Contact Binaries Based on Gaia DR 1: 8% Distance Accuracy
• Contact Binaries as Viable Distance Indicators: New, Competitive (V)JHKs Period-Luminosity Relations
• Radial Velocity Studies of Southern Close Binary Stars.II
• Spectroscopic metallicity determinations for W~UMa-type binary stars
• Gas and Dust Associated with the Strange, Isolated, Star BP Piscium
• Variability, periodicity and contact binaries in WISE
• The University of New South Wales Extrasolar Planet Search: a catalogue of variable stars from fields observed 2004--2007
• Impact of distance determinations on Galactic structure. I. Young and intermediate-age tracers
• A binary merger origin for inflated hot Jupiter planets
• Period-Luminosity-Colour Relation for Early-Type Contact Binaries
• Physical parameter study of eight W Ursae Majoris-type contact binaries in NGC 188
• Absolute Magnitude Calibration for W UMa-Type Systems Based on Gaia Data
• Orbits of subsystems in four hierarchical multiple stars
• Case AD, AR, and AS binary evolution and their possible connections with W UMa binaries
• Low-Amplitude Variables: Distinguishing RR Lyrae stars from Eclipsing Binaries
• Search for Dormant Black Holes in Ellipsoidal Variables III. The OGLE BULGE Short-Period Sample
• SuperWASP Variable Stars: Classifying Light Curves Using Citizen Science
• New absolute magnitude calibrations for W Ursa Majoris type binaries
• Astrophysics in 2006
• Zwicky Transient Facility and Globular Clusters: the Period-Luminosity and Period-Luminosity-Color Relations for Late-Type Contact Binaries
• Eclipsing Binary Populations across the Northern Galactic Plane from the KISOGP survey
• Light curve solutions of the ultrashort-period $Kepler$ binaries
• Variable stars in the field of the old open cluster Melotte 66
• 1318 New Variable Stars in a 0.25 Square Degree Region of the Galactic Plane
• Photometric and spectroscopic studies of the long period low mass ratio deep contact binary KN Per
• The First Photometric Study of AH Mic Contact Binary System
• Luminosity function of contact binaries at high galactic latitudes towards the LMC and the SMC