Spectral evolution of the extremely fast classical nova V838 Herculis

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Stars: Individual: V838 Her, Novae, Cataclysmic Variables, Ism: General

Scientific paper

Spectral evolution of nova V838 Her 1991 was monitored at Asiago Astrophysical Observatory from 1991 March 31 to July 2. The spectra in the early decline stage showed emission lines of H I, He I, He II, N II, N III, C II, C III, C IV, Si II, [S III], [Ne III], and Fe II, where some identifications are different from those reported in the previous works. The emission lines of [Ne III] and carbon ions were unusually intense. New emission peaks appeared at the blue-ward edges of the emission lines of H I and He I about one week after maximum luminosity. It seems that a new clump of gas was ejected at that time along the line of sight towards us. The helium abundance is estimated at N(He) = 0.11 ± 0.01.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Spectral evolution of the extremely fast classical nova V838 Herculis 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 Spectral evolution of the extremely fast classical nova V838 Herculis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectral evolution of the extremely fast classical nova V838 Herculis will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1344331

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.