A magnetospheric heating model for the evaporation of the companion to PSR 1957 + 20

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

An orbital period derivative for the PSR 1957 + 20 system has recently been reported by Ryba & Taylor which indicates orbital contraction over a time-scale of 1015s. The angular momentum loss of the light companion is probably indicative of heavy mass loss, too high to be explained by previous evaporation scenarios. In addition, Fruchter & Goss have reported an eclipse in the time-integrated component of the pulsar emission at 1400 MHz at a phase of 0.23 to 0.24, slightly before the middle of the eclipse at lower frequencies, implying that the wind is shot out asymmetrically from the companion star's surface. In this letter we suggest that the companion has a magnetos-phere which allows for extremely efficient and possibly uneven heating of the companion's surface, and partial collimation of the outflow.

Original languageEnglish
Pages (from-to)11P-13P
JournalMonthly Notices of the Royal Astronomical Society
Volume254
Issue number1
DOIs
StatePublished - 1 Jan 1992

Fingerprint

Dive into the research topics of 'A magnetospheric heating model for the evaporation of the companion to PSR 1957 + 20'. Together they form a unique fingerprint.

Cite this