Reduced magnetic braking and the magnetic capture model for the formation of ultra-compact binaries

Abstract

A binary in which a slightly evolved star starts mass transfer to a neutron star can evolve towards ultra-short orbital periods under the influence of magnetic braking. This is called magnetic capture. In a previous paper we showed that ultra-short periods are only reached for an extremely small range of initial binary parameters, in particular orbital period and donor mass. Our conclusion was based on one specific choice for the law of magnetic braking, and for the loss of mass and angular momentum during mass transfer. In this paper we show that for less efficient magnetic braking it is impossible to evolve to ultra-short periods, independent of the amount of mass and associated angular momentum lost from the binary.

arXiv comment7 pages, 7 figures, accepted for publication in Astronomy and Astrophysics. See http://www.astro.uu.nl/~sluys/PhD/

References in corpus (9)

• Approximate input physics for stellar modelling
• Evolutionary Binary Sequences for Low- and Intermediate-Mass X-ray Binaries
• The Angular Momentum Evolution of Very Low Mass Stars
• Cataclysmic Variables: An Empirical Angular Momentum Loss Prescription From Open Cluster Data
• Magnetic Braking Revisited
• The Evolution of Cool Algols
• Binary and Long-Term (Triple?) Modulations of 4U 1820$-$30 in NGC 6624
• Rotational velocities of low-mass stars in the Pleiades and Hyades
• Creating ultra-compact binaries in globular clusters through stable mass transfer

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