SMC X-1 variability observed from HEAO 1

Details SMC X-1 variability observed from HEAO 1 SMC X-1 variability observed from HEAO 1

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...283..546g&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 283, Aug. 15, 1984, p. 546-551.

Other

34

Eclipsing Binary Stars, Magellanic Clouds, Pulsars, Stellar Mass Accretion, X Ray Sources, X Ray Spectra, Accretion Disks, Heao 1, Light Curve, Periodic Variations, Random Walk

Scientific paper

Studies are reported of the slow variability of SMC X-1 and its spectrum. An analysis of red-noise random variability is based on a method discussed by Deeter and Boynton (1982). The 0.7 s X-ray pulsar SMC X-1 is in a 3.89 day eclipsing binary system with a B0 I supergiant companion. Observations of the pulsar were conducted with the aid of the UCSD/MIT instrument on HEAO 1 from 1977 August through 1979 January. A light curve was constructed for the period 1977 September to 1978 December. The apparent tendency of SMC X-1 to be in one of two states, high or low, suggests the acquisition of average spectra separately for each state. The total (steady plus pulsed) emission from SMC X-1 displays a continuum spectrum with a dominant exponential form which implies a temperature of 17 keV for thin thermal bremsstrahlung emission or 5 keV if the other limit of a Wien spectrum is assumed.

Affiliated with

Also associated with

No associations

Rating

SMC X-1 variability observed from HEAO 1 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with SMC X-1 variability observed from HEAO 1, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and SMC X-1 variability observed from HEAO 1 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1674418