MV Lyrae: Photometric study at high state

Details MV Lyrae: Photometric study at high state MV Lyrae: Photometric study at high state

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26as..134..263k&link_type=abstract

Astronomy and Astrophysics Supplement, v.134, p.263-270

Astronomy and Astrophysics

Astrophysics

10

Accretion, Accretion Disks, Stars: Mv Lyr, Stars: Novae, Cataclysmic Variables, X-Ray: Stars

Scientific paper

Photoelectric observations of novalike MV Lyr in a standard UBV system were carried out at Rozhen and Belogradchik observatories in 1992 and 1993. During all the nights of observations the star was in high state (V ~ 12.5 mag). The observing runs performed in U and B bands show strong flickering activity and a typical shape of the red noise power spectrum. The periodogram analysis of time series shows quasi-periodic oscillations with a period of about 50 min. The excitation of trapped oscillations at the outer edge of the accretion disc, has been proposed as a possible mechanism for generation of MV Lyr quasi-periodic oscillations. The properties of the flickering in MV Lyr light curves were determined.

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