The Observability of Supernovae and Novae in the Dawson and Johnson Model of the Galaxy

Details The Observability of Supernovae and Novae in the Dawson and Johnson Model of the Galaxy The Observability of Supernovae and Novae in the Dawson and Johnson Model of the Galaxy

May 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...188.7609h&link_type=abstract

American Astronomical Society, 188th AAS Meeting, #76.09; Bulletin of the American Astronomical Society, Vol. 28, p.953

Astronomy and Astrophysics

Astronomy

Scientific paper

We have carried out a Monte Carlo simulation for the distribution of the apparent magnitudes, at the sun, of Galactic supernovae and novae by integrating interstellar extinction along the lines of sight to randomly generated events. We have used the Dawson and Johnson model (1994, J. Roy. Astr. Soc. Canada, Vol. 88, No. 6, p 369) for the spatial distribution of dust and of supernova progenitors, and somewhat different supernova luminosity functions. In particular we have investigated the effects of including a substantial population of subluminous supernovae (M_V ~ -{14}), and we have included novae. We have considered the implications of the model for the observability of supernovae and novae in M31, and for the observability of Galactic supernovae from the extragalactic point of view, as a function of the inclination of the Galaxy to the line of sight. The model does not predict a strong inclination effect. Finally we have examined the effects of varying the spatial distribution of the events, and the galaxy type, size, and dust content.

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