Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011iaus..275..319p&link_type=abstract
Jets at all Scales, Proceedings of the International Astronomical Union, IAU Symposium, Volume 275, p. 319-320
Astronomy and Astrophysics
Astronomy
Supernovae: General, Supernovae: Individual (Sn 2007Gr), Ism: Jets And Outflows, Radio Continuum: General, Techniques: Interferometric
Scientific paper
SN2007gr was an ordinary type Ic supernova, with a hint of asymmetric explosion seen in the optical polarization spectrum. This type of SNe is occasionally associated with long duration gamma-ray bursts which generate ultra-relativistic jets; no relativistic outflows have yet been found by direct imaging in SNe Ib/c explosions. High resolution very long baseline interferometry (VLBI) data and simultaneous total radio flux density measurements indicated that SN2007gr has expanded mildly relativistically. We performed late time Westerbork Synthesis Radio Telescope (WSRT) observations to measure the level of the underlying extended emission. Comparison of the VLBI and the background-subtracted WSRT and independent VLA data indicate an at least partially resolved source with an average expansion velocity of >=0.4c, although the VLBI data could be consistent with a fainter source with an expansion velocity of ~0.2c as well.
Bourke Stephen
Campbell Robert Moses
Garrett Mike A.
Granot Jonathan
Kouveliotou Chryssa
No associations
LandOfFree
Is there a mildly relativistic jet in SN2007gr? 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 Is there a mildly relativistic jet in SN2007gr?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Is there a mildly relativistic jet in SN2007gr? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1120806