@inproceedings{b8efbf28e77d4b67b211c33a1af753d6,
title = "Is there a mildly relativistic jet in SN2007gr?",
abstract = "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.",
keywords = "ISM: jets and outflows, Radio continuum: general, Supernovae: general, Supernovae: individual (SN 2007gr), Techniques: interferometric",
author = "Z. Paragi and {Van Der Horst}, {A. J.} and M. Tanaka and Taylor, {G. B.} and C. Kouveliotou and Jonathan Granot and E. Ramirez-Ruiz and Y. Pidopryhora and S. Bourke and Campbell, {R. M.} and Garrett, {M. A.} and {Van Langevelde}, {H. J.}",
year = "2011",
month = feb,
day = "1",
doi = "10.1017/S1743921310016297",
language = "אנגלית",
isbn = "9780521766074",
volume = "275",
series = "Proceedings of the International Astronomical Union",
publisher = "Cambridge University Press",
number = "S275",
pages = "319--320",
editor = "Romero, {Gustavo E.} and Sunyaev, {Rashid A.} and Tomaso Belloni",
booktitle = "Jets at All Scales",
address = "בריטניה",
edition = "S275",
}