PDA

View Full Version : Discussion: Carbon/Oxygen Stars Could Explode ...



Fraser
2005-May-27, 04:34 PM
SUMMARY: An international team of astronomers have found evidence that certain kinds of gamma-ray bursts, which are associated with Type 1C supernovae (aka hypernovae), could be caused when carbon/oxygen stars collapse into black holes. Type 1C supernovae occur when massive stars shed their outer layers of hydrogen and helium, or lose them to binary companions. As it collapses, material blasts out the top and bottom in powerful jets. The team was able to confirm this model by using Keck and the Subaru Telescope to analyze a recent hypernova that matched their predictions perfectly.

View full article (http://www.universetoday.com/am/publish/carbon_oxygen_grbs.html)

What do you think about this story? Post your comments below.

Greg
2005-May-27, 05:53 PM
Excellent news for the collapsar model. In my mind I already accept this model as a fundamental process in the universe, so to me it seems rather self evident that observational prrof has now been found to strongly back up the model. Hopefully this study will help sway the less convinced.

om@umr.edu
2005-May-27, 10:05 PM
Whether or not the conclusions of this report are valid, I am pleased to see such a talented group trying to fit together so many interesting new concepts:

1. Gamma ray bursters

2. Asymmetric supernova collapse

3. Formation of black holes

4. Axially directed jets

Our understanding of the universe undoubtedly depends on our ability to decipher these.

With kind regards,

Oliver
http://www.umr.edu/~om

Nick4
2005-Jul-06, 05:15 AM
This is what i thought was a Quasar which i stated in another topic.

John L
2005-Jul-06, 01:45 PM
I think the accepted view of a Quasar is that it is a super massive black hole that is actively comsuming large amounts of matter. As the matter spirals into the SMBH it heats up and produces jets similar to those described.