Observation of Soft X-Ray Emission from a Region near Per X-1

Details Observation of Soft X-Ray Emission from a Region near Per X-1 Observation of Soft X-Ray Emission from a Region near Per X-1

May 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974ap%26ss..28..185a&link_type=abstract

Astrophysics and Space Science, Volume 28, Issue 1, pp.185-191

Astronomy and Astrophysics

Astrophysics

4

Scientific paper

Soft X-ray emission from the X-ray source Per X-1 was observed in the 0.4 2 keV energy interval from a rocket borne X-ray detector. Spectral analysis of the data indicates that in the 0.4 2 keV band the X-ray emission from Per X-1 can be fitted either with a power law of slope-(4.8±1.2) or a thermal bremsstrahlung spectrum with akT value of (0.26{-0.08/+0.12}) keV. Such a steep spectrum is inconsistent with the spectrum measured above 2 keV. The measured flux in 0.4 2 keV band corresponds to X-ray luminosity of 3×1045 ergs s-1 for Per X-1.

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