Variations in the spectra and pulse period of GX 301-2 | Zendy

J. H. Swank | Zendy; R. H. Becker | Zendy; E. A. Boldt | Zendy; S. S. Holt | Zendy; S. H. Pravdo | Zendy; R. E. Rothschild | Zendy; P. J. Serlemitsos | Zendy

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Variations in the spectra and pulse period of GX 301-2

Author(s) -

J. H. Swank,

R. H. Becker,

E. A. Boldt,

S. S. Holt,

S. H. Pravdo,

R. E. Rothschild,

P. J. Serlemitsos

Publication year - 1976

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/182267

Subject(s) - physics , spectral line , astrophysics , period (music) , astronomy , variable star , astronomical spectroscopy , stars , acoustics

Spectra from observations of GX 301-2 (3U 1223-62) by the Goddard X-ray spectroscopy experiment on OSO-8 show an absorption edge due to cool iron with column densities of a few times 10/sup 19/ cm/sup -2/. A decrease in intensity was associated with increased absorption and a spectrum similar to those of binary X-ray sources in transitions to and from eclipse or in absorption dips. Observed variations of the pulse period are consistent with Doppler shifts for reasonable orbit parameters. (AIP)

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