The evolution of the bolometric light curve of SN 1987 A: Contribution of the central neutron star

Autor:	Hao Wu, Jun-han You, F. Z. Cheng, Xuan-bin Lin
Rok vydání:	1996
Předmět:	Physics Neutron star Accretion (meteorology) Space and Planetary Science law Bolometer Astronomy Astronomy and Astrophysics Astrophysics Light curve Radioactive decay law.invention Indirect evidence
Zdroj:	Chinese Astronomy and Astrophysics. 20:161-168
ISSN:	0275-1062
Popis:	We summarize the study of the bolometric evolution of SN 1987 A over the past six years. Over the first 800 days after the explosion, the observed bolometric curve agrees well with the model of heating by radioactive decay of radioactive elements synthesized during the explosion, but the observed curve after Day 900 falls more slowly than the model predictions. This suggests some new source of energy at work. We think that the new source may be accretion by the neutron star generated at the explosion, of matter in the ejected shell that moved at sub-escape speeds. This model can well account for the slowing down in the decline of the bolometric curve, and the bump between Day 900 and Day 1200. It serves also as indirect evidence for the existence of the central neutron star.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::37a89e7d28ac02b7969bfd941f5cfe46 https://doi.org/10.1016/0275-1062(96)00023-9 Zobrazit plný text záznamu Full Text from ScienceDirect