Spectroscopic Study of Q Cygni: Surprises from an Old Nova

Details Spectroscopic Study of Q Cygni: Surprises from an Old Nova Spectroscopic Study of Q Cygni: Surprises from an Old Nova

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aj....126.1472k&link_type=abstract

The Astronomical Journal, Volume 126, Issue 3, pp. 1472-1482.

Astronomy and Astrophysics

Astronomy

8

Stars: Binaries: Close, Stars: Novae, Cataclysmic Variables, Stars: Fundamental Parameters, Stars: Individual: Constellation Name: Q Cygni

Scientific paper

We present a time-resolved spectroscopic study of Q Cyg (Nova Cyg 1876), determining a period of P=10.08 hr for the system. Our data also reveal P Cygni profiles in the He I λλ5876 and 7065 lines and occasionally in the Hα line. Although P Cygni profiles commonly appear in the UV resonance lines of novalike cataclysmic variables, only BZ Cam was previously known to exhibit a rapidly variable wind, which leaves its signature in time-resolved optical spectral lines. A comparison between BZ Cam and Q Cyg reveals striking similarities between the two systems. The origin of the outflow in Q Cyg and a possible correlation of the P Cygni profiles with the system's optical state are discussed.

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