The discovery of pulsed iron line emission from Centaurus X-3

Details The discovery of pulsed iron line emission from Centaurus X-3 The discovery of pulsed iron line emission from Centaurus X-3

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...408..656d&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 408, no. 2, p. 656-659.

Other

18

Eclipsing Binary Stars, Iron, Light Curve, Spectral Emission, Stellar Radiation, X Ray Binaries, Astronomical Spectroscopy, Exosat Satellite, Ginga Satellite, Stellar Spectra

Scientific paper

We present the first discovery of pulsed iron line emission from an X-ray binary, namely Cen X-3. Compared with the continuum pulsations, the iron line pulsations are shallow (50 percent change in amplitude), smeared (the profile is a single-peaked sinusoid) and phase-shifted (by about half a cycle). We also discuss the constraints on the origin of the line imposed by this discovery and by other observations.

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