Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-04-05
Astrophys.J. 629 (2005) L13
Astronomy and Astrophysics
Astrophysics
accepted by ApJ Letters, post refereed version, an appendix has been added
Scientific paper
10.1086/444356
It is pointed out that the beaming correction commonly inferred from the achromatic breaks in the afterglow light curve is biased in situations where the isotropic equivalent energy is affected by factors other than the spread in opening angles. In particular, it underestimates the beaming factor of sources observed off-axis. Here we show that both the slopes and scatters in the Amati and Ghirlanda relations, and the difference between them, are quantitatively consistent with a model proposed recently, in which the $E_{iso}-\nu_{peak}$ relation, as originally derived by Amati et al., is due to viewing angle effects. The quantitative difference between them confirms the relations between opening angle and break time suggested by Frail et al.
Eichler David
Levinson A. A.
No associations
LandOfFree
The Difference Between the Amati and Ghirlanda Relations 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 The Difference Between the Amati and Ghirlanda Relations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Difference Between the Amati and Ghirlanda Relations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-38567