Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008chjaa...8..411x&link_type=abstract
Chinese Journal of Astronomy and Astrophysics, Volume 8, Issue 4, pp. 411-420 (2008).
Astronomy and Astrophysics
Astrophysics
1
Scientific paper
When the axis of a gamma-ray burst (GRB) does not coincide with the spin axis of its source, there may result a ring-shaped jet. Using some refined jet dynamics, we calculate multi-wavelength afterglow light curves for such ring-shaped jets. In the R-band we find an obvious break in the afterglow light curve due to the beaming effect and the break is affected by many parameters, such as the electron energy fraction ξe, the magnetic energy fraction ξB2, the width of ring Δθ and the medium number density n. The overall light curve can be divided into three power-law stages, i.e., an ultra-relativistic stage, an after-break stage and a deep Newtonian stage. For each stage the power-law index is larger in the ring-shaped jet than in the corresponding conical jet.
Huang Yong-Feng
Kong Si-Wei
Xu Ming
No associations
LandOfFree
Ring-Shaped Jets in Gamma-Ray Bursts 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 Ring-Shaped Jets in Gamma-Ray Bursts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ring-Shaped Jets in Gamma-Ray Bursts will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1693806