|Subject:||Re: Hubble pinpoints red supergiant that exploded Forwarded|
|Date:||Sun, 5 Mar 2006 21:25:43 +0000|
In message <llu0acg1z2.fsf@xxxxxxxxxxxxxxxxx>, Joseph Lazio
"JS" == Jonathan Silverlight <jsilverlight@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> writes:Hubble pinpoints red supergiant that explodedJS> Does anyone know what changes occur in such a star before it JS> explodes? Depends in how much detail you want to know. :) You might want to take a look at Heger et al. (<URL: http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2003ApJ...591..288H), which describes some of these issues and has references as well.(Note that there is both a journal article and an astro-ph e-print.) JS> For instance, how much notice will we get that Betelgeuse is about JS> to explode? Is it changing now?? :-) For Betelgeuse in particular, a quick search of the astronomy literature finds little discussing its possible future evolution. There's an abstract by Mathews et al. (<URL: http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1998AAS...192.6703M), but I find no indication that this work was ever published in anymore detail.
That's going back a while :-) Thanks Dr. Lazio.It occurs to me that Betelgeuse is well placed now, and would probably be visible in daylight if it exploded, but could we have missed a supernova a few degrees from the Sun in the past?
Today it would be seen by SOHO and many other satellites.
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