Spectrophotometric investigation of N CYG 1975 = V1500 CYG

Details Spectrophotometric investigation of N CYG 1975 = V1500 CYG Spectrophotometric investigation of N CYG 1975 = V1500 CYG

Jun 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977azh....54..566t&link_type=abstract

Astronomicheskii Zhurnal, vol. 54, May-June 1977, p. 566-574. In Russian.

Astronomy and Astrophysics

Astronomy

1

Electrophotometry, Novae, Spectral Line Width, Stellar Spectrophotometry, Balmer Series, Cygnus Constellation, H Lines, Stellar Evolution

Scientific paper

Results are reported for photoelectric spectrophotometric observations of Nova Cygni 1975 over the wavelength range between 3100 and 6800 A, which were performed in the period from September 7 to December 26, 1975. The evolution of the nova spectrum is described, and the equivalent widths of strong lines and bands are determined together with the H-alpha line half-width. The absolute spectral energy distribution of the nova is obtained and used to determine energy fluxes in various lines, the Balmer jump, and an estimate of the 'bright-band effect' in the V system. The Balmer decrement is calculated for September 7-9 and October 1; H-alpha/H-beta intensity ratios are provided for the remaining nights.

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