Spectroscopic studies of nova V1500 Cygni. II - Models for the 3 hour profile modulations

Details Spectroscopic studies of nova V1500 Cygni. II - Models for the 3 hour profile modulations Spectroscopic studies of nova V1500 Cygni. II - Models for the 3 hour profile modulations

Sep 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...224..899h&link_type=abstract

Astrophysical Journal, Part 1, vol. 224, Sept. 15, 1978, p. 899-909.

Astronomy and Astrophysics

Astrophysics

16

Emission Spectra, Novae, Stellar Models, Stellar Spectra, Amplitudes, Balmer Series, Periodic Variations, Time Lag

Scientific paper

The amplitudes and time lags of the 3-hour periodic profile modulation are measured through several emission lines in spectrograms of V1500 Cygni taken in September 1975. A grid of predicted values of these quantities is calculated for possible models and compared with the observational data. These and considerations of the profile shape support and further define a previously proposed model. It is characterized by an equatorial ring, polar blobs, a 3.3-hour periodic searchlight illumination, an expansion velocity of about 2000 km/s, an inclination of approximately 50 deg, and time of outburst August 29.5 + or - 1 day.

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