An X-ray pulsar in SNR G109.1-1.0

Details An X-ray pulsar in SNR G109.1-1.0 An X-ray pulsar in SNR G109.1-1.0

Sep 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981natur.293..202f&link_type=abstract

Nature, vol. 293, Sept. 17, 1981, p. 202-204.

Computer Science

108

Binary Stars, Point Sources, Pulsars, Supernova Remnants, X Ray Sources, Light Curve, Proportional Counters, Stellar Evolution, Stellar Radiation

Scientific paper

An analysis is presented of Einstein Observatory observations of the point X-ray source 1E 2259 + 586 discovered within the supernova remnant-like extended X-ray source G109.1-1.0. Data were obtained with the Imaging Proportional Counter for a two-hour period, and analyzed by a straightforward period-folding technique. A strongly modulated signal with a period of 3.4890 + or - 0.0002 sec is obtained which is also found in the discovery observation made seven months earlier. The period and modulation of the variation are consistent with known X-ray pulsars, with X-ray luminosity due to accretion from a close companion. 1E 2259 + 586 thus represents the only known accretion-powered X-ray pulsar associated with a supernova remnant.

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