Visual Observability of the Cassiopeia A Supernova
| dc.creator | Morgan, J. A. | |
| dc.date | 2007-10-11 | |
| dc.date | 2007-11-26 | |
| dc.date.accessioned | 2026-07-07T11:38:02Z | |
| dc.date.available | 2026-07-07T11:38:02Z | |
| dc.description | It is generally believed that the explosion which gave birth to the Cassiopeia A supernova remmant resulted from core collapse of a hydrogen-deficient star. A progenitor that has lost all its hydrogen envelope and part of its helium envelope would lead to an explosion with the optical properties of a Type Ic supernova. There is evidence, if not general agreement, that Flamsteed observed the Cas A supernova as a sixth magnitude object in August, 1680. If an explosion with a typical SNIc light curve at the position and distance of Cas A attained maximum luminosity during the winter of 1679-1680, it would at that time have been poorly situated for visual observation, as its upper culmination would have taken place during daylight, while in August, between 170-200 days after peak luminosity, it would have been a sixth magnitude star. | |
| dc.description | 8 pages; submitted to Observatory Magazine. Revisions and minor corrigenda | |
| dc.identifier | https://arxiv.org/abs/0710.2345 | |
| dc.identifier | http://arxiv.org/abs/0710.2345 | |
| dc.identifier | Observatory128:80,2008 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/199419 | |
| dc.subject | Astrophysics | |
| dc.title | Visual Observability of the Cassiopeia A Supernova | |
| dc.type | text |