Evolution of the spectrum of HR Del between 1973 and 1979

Details Evolution of the spectrum of HR Del between 1973 and 1979 Evolution of the spectrum of HR Del between 1973 and 1979

May 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ap%26ss..76..149a&link_type=abstract

Astrophysics and Space Science, vol. 76, no. 1, May 1981, p. 149-157. In French.

Astronomy and Astrophysics

Astronomy

2

Emission Spectra, Fine Structure, Novae, Spectral Energy Distribution, Stellar Spectra, Astronomical Photography, Balmer Series, Iue, Oxygen Spectra, Radial Velocity, Spectral Line Width, Ultraviolet Astronomy

Scientific paper

It is noted that from 1973 to 1979 the intensity of emission lines and continuum of HR Del has steadily diminished and that high excitation lines disappeared in 1978. The distribution of spectral energy in the continuum remains the same in the spectral range 4000-5000 A. The strong ultraviolet excess found in the spectral range 3600-3250 A is confirmed using IUE satellite observations in the ultraviolet. The observations show an important change in the structure of the O III lines 4959 and 5007 A between 1973 and 1976, the polar components becoming weaker than the equatorial ones.

Affiliated with

Also associated with

No associations

Rating

Evolution of the spectrum of HR Del between 1973 and 1979 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Evolution of the spectrum of HR Del between 1973 and 1979, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evolution of the spectrum of HR Del between 1973 and 1979 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1440915