Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-08-13
Astronomy and Astrophysics
Astrophysics
Version accepted for publication in MNRAS (added R-band calculations and provided further discussion on the late plateau in SN
Scientific paper
10.1111/j.1365-2966.2008.13312.x
The most luminous Supernova SN2006gy (more than a 100 times brighter than a typical supernova) has been a challenge to explain by standard models. For example, pair instability supernovae which are luminous enough seem to have too slow a rise, and core collapse supernovae do not seem to be luminous enough. We present an alternative scenario involving the quark-nova phenomenon (an explosive transition of the newly born neutron star to a quark star) in which a second explosion (delayed) occurs inside the ejecta of a normal supernova. The reheated supernova ejecta can radiate at higher levels for longer periods of time primarily due to reduced adiabatic expansion losses, unlike the standard supernova case. We find an encouraging match between the resulting lightcurve and that observed in the case of SN2006gy suggesting that we might have at hand the first ever signature of a quark-nova. Successful application of our model to SN2005gj and SN2005ap is also presented.
Leahy Denis
Ouyed Rachid
No associations
LandOfFree
Supernova SN2006gy as a first ever Quark Nova? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Supernova SN2006gy as a first ever Quark Nova?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Supernova SN2006gy as a first ever Quark Nova? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-388516