The possibility of soft X-ray emission from shocks in Cepheids

Details The possibility of soft X-ray emission from shocks in Cepheids The possibility of soft X-ray emission from shocks in Cepheids

Apr 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981sval....7...96b&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 7, Mar. 1981, p. 172-175.) Soviet Astronomy Letters, vol. 7, Mar.-Apr. 1981, p. 96-98.

Astronomy and Astrophysics

Astronomy

3

Cepheid Variables, Radiant Flux Density, Shock Waves, X Ray Astronomy, Periodic Variations, Propagation Velocity, Shock Wave Propagation, Stellar Atmospheres

Scientific paper

The possibility of soft X-ray emission from shocks in Cepheids is investigated. The physical parameters of several RR Lyrae stars with especially high shock velocities are presented, and the estimated soft X-ray intensity is discussed. Results show that the soft X-ray flux from the postshock region in the atmosphere of RR Lyrae should exceed 10 to the 30th erg/sec in the 80-100 A wavelength band, 10 to the 32nd erg/sec in the 80-200 A band, and should last approximately 100 sec.

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