Novae, supernovae, and the island universe hypothesis

Details Novae, supernovae, and the island universe hypothesis Novae, supernovae, and the island universe hypothesis

Jan 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988pasp..100....8v&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 100, Jan. 1988, p. 8-17.

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20

Astronomical Models, Novae, Supernovae, Universe, Distance, Light Curve, Milky Way Galaxy, Star Distribution, Stellar Motions, Virgo Galactic Cluster

Scientific paper

Arguments in Curtis's (1917) paper related to the island universe hypothesis and the existence of novae in spiral nebulae are considered. It is noted that the maximum magnitude versus rate-of-decline relation for novae may be the best tool presently available for the calibration of the extragalactic distance scale. Light curve observations of six novae are used to determine a distance of 18.6 + or - 3.5 MPc to the Virgo cluster. Results suggest that Type Ia supernovae cannot easily be used as standard candles, and that Type II supernovae are unsuitable as distance indicators. Factors other than precursor mass are probably responsible for determining the ultimate fate of evolving stars.

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