A theoretical explanation of the absolute magnitude-decline time /MB-t sub 3/ relationship for classical novae

Details A theoretical explanation of the absolute magnitude-decline time /MB-t sub 3/ relationship for classical novae A theoretical explanation of the absolute magnitude-decline time /MB-t sub 3/ relationship for classical novae

Feb 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...243..926s&link_type=abstract

Astrophysical Journal, Part 1, vol. 243, Feb. 1, 1981, p. 926-934. Research supported by the National Research Council of Canad

Astronomy and Astrophysics

Astrophysics

64

Novae, Stellar Magnitude, Stellar Models, White Dwarf Stars, Approximation, Mathematical Models, Stellar Mass Ejection, Stellar Temperature

Scientific paper

An analytic explanation is proposed for the observed strong correlation between the absolute photographic magnitude of a nova at maximum and the time it takes to dim from maximum by 3 magnitudes. The observational basis of the magnitude-decay time and associated ejection velocity-decay time relations is reviewed, and the steady-state, constant luminosity, continuous ejection model of classical novae is summarized. The maximum magnitude-decay time relation for novae is then derived from considerations of the classical model, the assumption of nova shut-off from envelope exhaustion, and the conditions necessary for the appearance of a thermonuclear runaway on the white dwarf surface. The relation is shown to be in good agreement with observations, with faster novae occurring on more massive white dwarfs. The correlation between ejection velocity and decay time is also reproduced, being a direct consequence of the equipartition of the energy flux of the radiation field and the ejected matter. Scatter in the observational relation is attributed to scatter in the prenova white dwarf luminosity, and it is predicted that the absolute magnitude at maximum-decay time relation should be the same for all galaxies, populations and epochs where binaries form.

Affiliated with

Also associated with

No associations

Rating

A theoretical explanation of the absolute magnitude-decline time /MB-t sub 3/ relationship for classical novae 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 A theoretical explanation of the absolute magnitude-decline time /MB-t sub 3/ relationship for classical novae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A theoretical explanation of the absolute magnitude-decline time /MB-t sub 3/ relationship for classical novae will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1407161