主要内容:
企图通过观测近处超新星1年后的射电辐射确认为来自伽玛暴的喷流。但这里仅仅一篇摘要，貌似也没有后续的文章。
精彩摘抄:
文章信息:
| Title: |
| Late-Time Radio Emission from Type Ib/c Supernovae: Testing the Oblique GRB Jet Model |
| Authors: |
| Stockdale, C. J.; Van Dyk, S. D.; Weiler, K. W.; Panagia, N.; Sramek, R. A.; Paczynski, B.; Rupen, M. P. |
| Publication: |
| American Astronomical Society Meeting 203, #87.02; Bulletin of the American Astronomical Society, Vol. 35, p.1346 |
| Publication Date: |
| 12/2003 |
| Abstract Copyright: |
| (c) 2003: American Astronomical Society |
Abstract
Evidence has been accruing that long-duration GRBs may be associated with some extreme Type Ic supernovae (SNe). Theoretically, GRBs originate from directed, relativistic jets. Their afterglows, particularly in the
radio, are seen as their beamed jets, while remaining collimated, decelerate and expand significantly once they become non-relativistic. Yet, most GRB jets will not be pointed along our line-of-sight, with detectable γ - or X-ray emission, but may still be associated with a SN Ic. In this case, recent predictions have been made that the decelerating jet and counterjet should produce detectable
radio emission for several SNe Ibb or Ic per year within 200 Mpc, depending on the jet angle relative to the line-of-sight. Furthermore, the jet angle determines how long after the outburst/explosion
radio emission will be detected, even >>1 yr for nearby SNe
Ib/c. We have tested this intriguing possibility by observing a significant sample of SNe, with 1 yr ≲ age ≲ 10 yr, within 100 Mpc. Preliminary results of this survey will be presented along with their implications.
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