Coronal lines in the postmaximum spectrum of Nova RS Ophiuchi 1985

Details Coronal lines in the postmaximum spectrum of Nova RS Ophiuchi 1985 Coronal lines in the postmaximum spectrum of Nova RS Ophiuchi 1985

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986pasp...98..875w&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 98, Sept. 1986, p. 875-880.

Astronomy and Astrophysics

Astronomy

15

Emission Spectra, Novae, Ophiuchi Clouds, Radial Velocity, Stellar Coronas, Stellar Spectra, Stellar Temperature

Scientific paper

Radial velocities and relative fluxes of emission lines in the spectrum of RS Oph obtained 70 days after the 1985 outburst are presented. The spectra cover the range 3300 A to 6930 A with a resolution between 1 A and 4 A. Strong coronal lines of argon, manganese, iron, and nickel are present and temperatures in the emission region are estimated using their line ratios and the assumption of coronal equilibrium. A blueshifted velocity component is observed in some of the strong coronal lines and in He I and H II. This component was also seen in a previous outburst, but shifted toward the red. The need for a model which explains the observed optical line strengths and velocity structure is stressed.

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