Stability of helium accretion discs in ultracompact binaries

2008/02/29 by Jean-Pierre Lasota, J. P. Lasota, G. Dubus +3 · 3 citations
Earth and Planetary Sciences · Physics and Astronomy · #Accretion (finance) #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Atomic physics #Context (archaeology) #Geology #Helium #High-pressure geophysics and materials #Hydrogen #Irradiation #Neutron star #Nuclear physics #Physics #Pulsars and Gravitational Waves Research #Stars #astro-ph

paper · pdf · doi:10.1051/0004-6361:200809658

Astronomy & Astrophysics, in press

openalex publication_date 2008/05/22 · arxiv created 2008/05/23 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Context. Stellar companions of accreting neutron stars in ultra compact X-ray binaries (UCXBs) are hydrogen-deficient. Their helium or C/O accretion discs are strongly X-ray irradiated. Both the chemical composition and irradiation determine the disc stability with respect to thermal and viscous perturbations. At shorter periods, UCXBs are persistent, whereas longer-period systems are mostly transient.

Citations

• The disc instability model for X-ray transients: Evidence for truncation and irradiation
• Hydrogen-poor Disks in Compact X-Ray Binaries
• The ultra-compact binary 4U 1850-087 observed with INTEGRAL: hard X-ray emission from an X-ray burster
• Discovery of a Second Millisecond Accreting Pulsar: XTE J1751−305
• Discovery of a High-Latitude Accreting Millisecond Pulsar in an Ultracompact Binary
• Updated Opal Opacities
• Low‐Temperature Opacities

Cited by

• Models of AM Canum Venaticorum star outbursts
• Evidence of a non-conservative mass transfer in the ultra-compact X-ray source XB 1916-053
• GALACTIC ULTRACOMPACT X-RAY BINARIES: EMPIRICAL LUMINOSITIES