Astronomy and Astrophysics – Astronomy
Scientific paper
May 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aas...184.5301g&link_type=abstract
American Astronomical Society, 184th AAS Meeting, #53.01; Bulletin of the American Astronomical Society, Vol. 26, p.946
Astronomy and Astrophysics
Astronomy
Scientific paper
Nova Cygni 1992 (NC92), the brightest northern hemisphere nova in nearly 20 years, has provided astronomers with the first detailed record of the temporal development of a nova explosion on an Oxygen-Neon-Magnesium (ONeMg) white dwarf (WD). Theoretical models of thermonuclear runaways suggest that these "neon novae" may be important sources of Neon 22, Sodium 22, and Aluminum 26, and that they may produce enhanced amounts of magnesium and silicon as well. Abundances of some of these isotopes in meteorites suggest that ejecta from neon nova eruptions may have contaminated the ISM cloud from which the primitive solar system formed. Infrared photometric and spectroscopic techniques for determining the abundances of elements in the nova ejecta will be reviewed. These include observations of thermal-infrared emission from solid grains that condense in the expanding ejecta, and measurements of the strengths of near infrared coronal emission lines that arise in the gas phase of the ejecta. Neon abundances can be estimated using the 7.6 micron line of [Ne VI] and the 12.8 micron line of [Ne II]. Recent results on NC 92 and QU Vul, the archetypal neon nova, will be emphasized. The temporal development of infrared photometric light curves as a tool for distinguishing between CO and ONeMg novae will be discussed.
No associations
LandOfFree
Nova Cygni 1992 and Nova VUL 1984 #2 (QU Vul) as Prototypes for Infrared Studies of the Contributions of ONeMg Novae to the ISM 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 Nova Cygni 1992 and Nova VUL 1984 #2 (QU Vul) as Prototypes for Infrared Studies of the Contributions of ONeMg Novae to the ISM, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nova Cygni 1992 and Nova VUL 1984 #2 (QU Vul) as Prototypes for Infrared Studies of the Contributions of ONeMg Novae to the ISM will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-883609