The recombination wave and the hydrogen envelope mass of supernova 1987A

Details The recombination wave and the hydrogen envelope mass of supernova 1987A The recombination wave and the hydrogen envelope mass of supernova 1987A

Feb 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988natur.331..506d&link_type=abstract

Nature (ISSN 0028-0836), vol. 331, Feb. 11, 1988, p. 506, 507.

Physics

12

Blue Stars, Recombination Reactions, Stellar Envelopes, Supergiant Stars, Supernova 1987A, Wolf-Rayet Stars, Gravitational Collapse, Hydrogen, Red Giant Stars, Stellar Cores, Stellar Evolution

Scientific paper

The mass of the residual hydrogen envelope at the time of the explosion of SN1987A is estimated. The evolution of the photospheric radius in the first month is shown to be largely determined by the propagation of a hydrogen recombination wave into the ejecta. Provided that the fireball is expanding homologously and that the outer parts have a power-law density distribution, the scale density and the power-law index can be determined from the observations. It is shown that the residual hydrogen mass is larger than 2 solar masses and possibly as high as 12 solar masses.

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