Models of AM Canum Venaticorum star outbursts

2012/05/31 by Iwona Kotko, I. Kotko, Jean-Pierre Lasota +5 · 4 citations
Physics and Astronomy · #Accretion (finance) #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Astrophysics and Star Formation Studies #Cataclysmic variable star #Dwarf nova #Gamma-ray bursts and supernovae #Helium #Instability #Instability strip #Light curve #Physics #Stars #Variable star #White dwarf #astro-ph.SR

paper · pdf · doi:10.1051/0004-6361/201219156

published as A&A 544 (2012) A13 · Astronomy and Astrophysics - in press; corrected (language) version

arxiv created 2012/06/04 · openalex publication_date 2012/06/11 · arxiv updated 2012/08/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Context. Outbursting AM CVn stars exhibit outbursts similar to those observed in different types of dwarf novae. Their light-curves combine the characteristic features of SU UMa, ER UMa, Z Cam, and WZ Sge-type systems but also show a variety of properties never observed in dwarf novae. The compactness of AM CVn orbits and their unusual chemical composition make these systems valuable testbeds for outburst models.

Citations

• The disc instability model for X-ray transients: Evidence for truncation and irradiation
• Tidal torques, disc radius variations, and instabilities in dwarf novae and soft X-ray transients
• Stability of helium accretion discs in ultracompact binaries
• Mass transfer variation in the outburst model of dwarf novae and soft X-ray transients

Cited by

• High-speed photometry of Gaia14aae: an eclipsing AM CVn that challenges formation models
• Spectroscopic and photometric periods of six ultracompact accreting binaries
• Evidence that short-period AM CVn systems are diverse in outburst behaviour
• Challenging the Disk Instability Model. I. The Case of YZ LMi