On Cas A, Cassini, comets, and King Charles
dc.contributor.author | Soria, Roberto | |
dc.contributor.author | Balestrieri, R. | |
dc.contributor.author | Ohtsuka, Y. | |
dc.date.accessioned | 2017-01-30T14:39:36Z | |
dc.date.available | 2017-01-30T14:39:36Z | |
dc.date.created | 2013-11-04T20:00:32Z | |
dc.date.issued | 2013 | |
dc.identifier.citation | Soria, Roberto and Balestrieri, Riccardo and Ohtsuka, Yasuyo. 2013. On Cas A, Cassini, comets, and King Charles. Publications of the Astronomical Society of Australia. 30 (1): pp. e028. | |
dc.identifier.uri | http://hdl.handle.net/20.500.11937/40091 | |
dc.identifier.doi | 10.1017/pas.2013.003 | |
dc.description.abstract |
We re-examine the long-standing problem of the date of the Cassiopeia A supernova (SN), in view of recent claims that it might be the 1630 ‘noon-star’ seen at the birth of King Charles II. We do not support this identification, based on the expected brightness of a Type-IIb SN (too faint to be seen in daylight), the extrapolated motion of the ejecta (inconsistent with a date earlier than 1650), the lack of any scientific follow-up observations, the lack of any mention of it in Asian archives. The origin of the 1630 noon-star event (if real) remains a mystery; there was a bright comet in 1630 June but no evidence to determine whether or not it was visible in daylight. Instead, we present French reports about a fourth-magnitude star discovered by Cassini in Cassiopeia in or shortly before 1671, which was not seen before or since. The brightness is consistent with what we expect for the Cas A SN; the date is consistent with the extrapolated motion of the ejecta. We argue that this source could be the long-sought SN. | |
dc.publisher | CSIRO | |
dc.subject | supernovae: general | |
dc.subject | atlases | |
dc.subject | history and philosophy of astronomy | |
dc.subject | supernovae: individual: Cas A | |
dc.title | On Cas A, Cassini, comets, and King Charles | |
dc.type | Journal Article | |
dcterms.source.volume | 30 | |
dcterms.source.number | 1 | |
dcterms.source.startPage | e028 | |
dcterms.source.endPage | e028 | |
dcterms.source.issn | 1323-3580 | |
dcterms.source.title | Publications of the Astronomical Society of Australia | |
curtin.department | ||
curtin.accessStatus | Open access |