Evolution of wide binary millisecond pulsars in globular clusters

Journal Article · Sun Oct 01 04:00:00 EDT 1989 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/167897· OSTI ID:5019592

Rappaport, S; Putney, A; Verbunt, F ^[1]

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1. MIT, Cambridge, MA (USA) Max-Planck-Institut fuer extraterrestrische Physik, Garching (Germany, F.R.)

The evolution of a binary radio pulsar in a wide orbit about a low-mass degenerate dwarf companion in a globular cluster environment is investigated. An extensive series of numerical scattering experiments is used to study encounters between such a pulsar and passing cluster field stars. A wide range of initial orbital periods from 3 to 1000 days is considered with a corresponding range of masses for the degenerate dwarf companions. The calculative results are summarized in the form of scattering cross sections. In particular, cross sections are presented for three final channels in which the end product of the encounter is an isolated neutron star. Cross sections for inducing various orbital eccentricities into initially circular orbits are also derived. The implications of the results for the formation of the single millisecond pulsars in M28 and M15 and for the nearly circular obit of the M4 binary radio pulsar are discussed. 69 refs.

• OSTI ID: 5019592
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 345; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ASTROPHYSICS
BASIC INTERACTIONS
BINARY STARS
COSMIC RADIO SOURCES
CROSS SECTIONS
DISTRIBUTION
DWARF STARS
GRAVITATIONAL INTERACTIONS
INTERACTIONS
MASS
NEUTRON STARS
ORBITS
PULSARS
SCATTERING
SPATIAL DISTRIBUTION
STAR CLUSTERS
STAR EVOLUTION
STARS
WHITE DWARF STARS