Simplified Method for the Identification of Low Mass Ratio Contact Binary Systems that are Potential Red Nova Progenitors
arXiv:2208.00626 · doi:10.1007/s12036-022-09888-7
Abstract
The study presents a simplified method to identify potential bright red nova progenitors based on the amplitude of the light curve and infrared (J-H) colour of a contact binary system. We employ published criteria for contact binary orbital instability to show that the amplitude of the light curve for a given contact system with a low mass (< 1.4Msun) primary must be less than a specified value for it to be potentially unstable. Using this we search the photometric data of a large survey to identify about 50 potential bright red nova progenitors. We analyse the survey photometry of each to determine the mass ratio and from the estimated mass of the primary other physical parameters of the systems. We show that each system has physical characteristics indicating potential orbital instability. Using the absolute parameters from our sample we model the expected instability separation and period for low mass contact binary systems
arXiv commentAccepted - Journal of Astrophysics and Astronomy
References in corpus (22)
- Intrinsic Colors, Temperatures, and Bolometric Corrections of Pre-Main Sequence Stars
- The Man Behind the Curtain: X-rays Drive the UV through NIR Variability in the 2013 AGN Outburst in NGC 2617
- The WASP Project and the SuperWASP Cameras
- Main-sequence stellar eruption model for V838 Mon
- THE MINIMUM MASS RATIO OF W URSAE MAJORIS BINARIES
- Stellar Mergers Are Common
- On the origin of W UMa type Contact binaries - a new method for computation of initial masses
- Nova Sagittarii 1994 #1 (V4332 Sagittarii): The Discovery and Evolution of an Unusual Luminous Red Variable Star
- Statistics of 700 individually studied W UMa stars
- Luminous Red Novae: Stellar Mergers or Giant Eruptions?
- Precise time-series photometry for the Kepler-2.0 mission
- OGLE-2002-BLG-360: from a gravitational microlensing candidate to an overlooked red transient
- The ASAS-SN Catalog of Variable Stars V: Variables in the Southern Hemisphere
- The photometric-amplitude and mass-ratio distributions of contact binary stars
- ZZ Piscis Austrinus (ZZ PsA): A bright red nova progenitor and the instability mass ratio of contact binary stars
- Two contact binaries with mass ratios close to the minimum mass ratio
- Physical Parameters of Late-type Contact Binaries in the Northern Catalina Sky Survey
- Evolution of the progenitor binary of V1309 Scorpii before merger
- CoBiToM Project -- I. Contact Binaries Towards Merging
- The W-subtype active contact binary PZ UMa with a possible more massive tertiary component
- NSVS 2569022: a peculiar binary among the W UMa stars with extremely small mass ratios
- TESS Data for Asteroseismology: Photometry