Massive disk formation resulting from the collision of a main-sequence star with a white dwarf in a globular cluster core

Abstract

view Abstract Citations (32) References (20) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Massive Disk Formation from the Collision of a Main-Sequence Star with a White Dwarf in a Globular Cluster Core Soker, Noam ; Regev, Oded ; Livio, Mario ; Shara, Michael M. Abstract Collisions between a 0.2 solar mass main-sequence star and a white dwarf, in the core of a globular cluster, have been studied with the aid of a three-dimensional numerical simulation. For impact parameters between one and two main-sequence star radii (at an initial separation of five stellar radii), a massive disk forms around the white dwarf. Due to the non-Keplerian nature of the disks (i.e., significant internal pressure) formed in the present collision calculations, a definitive statement cannot be made concerning the final, stable configurations which result from such collisions. If, however, an accretion phase does follow the formation of massive disks, luminous X-ray (for neutron star accretors) and UV (for white dwarf accretors) sources can be expected to be formed this way in globular cluster cores. Publication: The Astrophysical Journal Pub Date: July 1987 DOI: 10.1086/165409 Bibcode: 1987ApJ...318..760S Keywords: Globular Clusters; Main Sequence Stars; Stellar Evolution; Stellar Mass Accretion; White Dwarf Stars; Computational Astrophysics; Neutron Stars; Stellar Cores; X Ray Binaries; Astrophysics; CLUSTERS: GLOBULAR; STARS: ACCRETION; STARS: STELLAR DYNAMICS; X-RAYS: BINARIES full text sources ADS |