Pulse-phased spectroscopy of AO PISCIUM (H2252-035) and GK Persei

Details Pulse-phased spectroscopy of AO PISCIUM (H2252-035) and GK Persei Pulse-phased spectroscopy of AO PISCIUM (H2252-035) and GK Persei

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986pasp...98..104h&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 98, Jan. 1986, p. 104-109.

Astronomy and Astrophysics

Astronomy

12

Pulsars, Stellar Spectrophotometry, X Ray Binaries, Emission Spectra, Line Spectra, Orbital Elements, Radiant Flux Density, Spectral Energy Distribution

Scientific paper

Spectroscopic observations are presented of these two slow X-ray pulsars. Spectra are accumulated in 3 or 4 phase bins per pulsation, to study spectroscopic variations. Emission-line variations are found with pulse phase in both systems, with flux amplitudes of equal to or less than 50 percent, and velocity amplitudes of 50-100 km/s. Pulse phasing of the variations is similar in both systems. These variations are discussed in terms of X-ray reprocessing. Possible orbital parameters, including a refined period, are derived for AO Psc.

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