Astrophysical parameters of X Persei

Details Astrophysical parameters of X Persei Astrophysical parameters of X Persei

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...259..522f&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 259, no. 2, p. 522-524.

Astronomy and Astrophysics

Astrophysics

23

Astronomical Photometry, B Stars, H Beta Line, Stellar Spectra, X Ray Binaries, Balmer Series, Stellar Magnitude, Ubv Spectra

Scientific paper

In this paper we analyze uvby and H-beta photometry of the Be/X-ray system X Persei, obtained during a recent phase in which the star lost the circumstellar material and reverted to a 'normal' O/B absorption-line star. We present the calibration of the fundamental astrophysical parameters, which are compatible with the spectral type O9.5 III previously determined. Comparison with evolutionary models gives a lower limit to the system age of 6 Myr.

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