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Author Sanchez, Nicolas ♦ Romani, Roger W.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ♦ ASYMMETRY ♦ BINARY STARS ♦ COSMIC DUST ♦ EMISSION ♦ GAMMA RADIATION ♦ LUMINOSITY ♦ MAGNETIC FIELDS ♦ MASS ♦ PULSARS ♦ STARS ♦ STELLAR WINDS ♦ VISIBLE RADIATION
Abstract The companions of evaporating binary pulsars (black widows and related systems) show optical emission suggesting strong heating. In a number of cases, large observed temperatures and asymmetries are inconsistent with direct radiative heating for the observed pulsar spindown power and expected distance. Here we describe a heating model in which the pulsar wind sets up an intrabinary shock (IBS) against the companion wind and magnetic field, and a portion of the shock particles duct along this field to the companion magnetic poles. We show that a variety of heating patterns, and improved fits to the observed light curves, can be obtained at expected pulsar distances and luminosities, at the expense of a handful of model parameters. We test this “IBS-B” model against three well-observed binaries and comment on the implications for system masses.
ISSN 0004637X
Educational Use Research
Learning Resource Type Article
Publisher Date 2017-08-10
Publisher Place United States
Journal Astrophysical Journal
Volume Number 845
Issue Number 1


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