| Issue |
A&A
Volume 472, Number 1, September II 2007
|
|
|---|---|---|
| Page(s) | 1 - 3 | |
| Section | Astrophysical processes | |
| DOI | https://doi.org/10.1051/0004-6361:20077200 | |
| Published online | 09 July 2007 | |
Pulsar kicks and γ-ray burst
1
Astronomy Department, School of Physics, Peking University, Beijing 100871, PR China e-mail: [xhcui,rxxu,gjq]@bac.pku.edu.cn
2
Center for Astrophysics, Guangzhou University, Guangzhou 510400, PR China e-mail: cosmic008@263.net
Received:
31
January
2007
Accepted:
5
June
2007
Aims.We use the supernova-GRB (γ-ray burst) association and assume that the GRB asymmetric explosions produce pulsars in order to test the consistency of distributions of modeled and observed pulsar-kick velocities.
Methods.The deduced distribution of kick velocity from the model of GRB and the observed kick distribution of radio pulsars are checked by a K-S test.
Results.These two distributions are found to come from the same parent population.
Conclusions.This result may indicate that GRBs could really be related to supernova and that the asymmetry of GRB associated with supernova would cause the pulsar kick.
Key words: stars: pulsars: general / gamma rays: bursts / stars: neutron / dense matter
© ESO, 2007
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.