Detection of hydrogen alpha periodicity in X Persei

Details Detection of hydrogen alpha periodicity in X Persei Detection of hydrogen alpha periodicity in X Persei

May 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...256l..13m&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 256, May 1, 1982, p. L13-L16.

Astronomy and Astrophysics

Astrophysics

13

B Stars, Binary Stars, H Alpha Line, Pulsars, X Ray Sources, High Resolution, Periodic Variations, Radial Velocity, Stellar Luminosity

Scientific paper

High spectral resolution observations of the H-alpha profile in the Be star X Persei are presented. Fluctuations with a period consistent with the 13.9 min period of the associated X-ray pulsar were detected. The amplitude of the fluctuations is about 2% of the continuum. Evidence that the amplitude of the fluctuations varies across the H-alpha profile was also found.

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