Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...367..310s&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 367, Jan. 20, 1991, p. 310-320.
Astronomy and Astrophysics
Astrophysics
38
Interstellar Extinction, Novae, Ultraviolet Spectra, Emission Spectra, Gas Ionization, High Temperature Gases, Stellar Mass Ejection
Scientific paper
Optical spectrophotometry of PW Vulpeculae is combined with ultraviolet data to estimate electron temperatures, densities, and abundances in the ejecta of this slow classical nova. The reddening, the distance, and the evolution of the ultraviolet spectrum are discussed. Abundances are nearly solar, with the exception of nitrogen, which is substantially higher. Although neon has been reported to be enhanced in several novae, it does not seem to be the case for PW Vul. Photoionization model calculations of the ejecta that give a reasonable match of the observed emission spectrum are presented. A strong featureless continuum shows that very hot, presumably shock-heated, gas plays a major role in determining the energetics of this nova. Emission from this hot gas is responsible for the ionization of the nebular gas. A calculation of the masses of both the hot coronal gas and the cooler nebular gas shows that the former may account for most of the mass of the ejecta.
Ferland Gary J.
Kenyon Scott. J.
Saizar Pedro
Sparks Warren M.
Starrfield Sumner
No associations
LandOfFree
PW Vulpeculae - A nova with nearly solar abundances 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 PW Vulpeculae - A nova with nearly solar abundances, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and PW Vulpeculae - A nova with nearly solar abundances will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1894939