| | |
| | |
Stat |
Members: 3645 Articles: 2'504'928 Articles rated: 2609
25 April 2024 |
|
| | | |
|
Article overview
| |
|
Radio Detection of Old GRB Remnants in the Local Universe | Eric Woods
; Abraham Loeb
; | Date: |
8 Jul 1999 | Subject: | astro-ph | Abstract: | We investigate the hydrodynamic evolution of Gamma--Ray Burst (GRB) remnants at late times (>> 1 year), by extending the standard fireball model into the nonrelativistic Sedov--Taylor regime. We calculate the associated synchrotron luminosity as a function of remnant age. The radio luminosity of old remnants depends strongly on the power-law index p= (dlogN/dlogE) of the kinetic energy distribution of shock-accelerated electrons. In addition, the detection probability of remnants in nearby galaxies depends on the GRB rate in the local universe. We predict that if p<2.6 and the BATSE-calibrated GRB rate per comoving volume is independent of redshift (despite the strong evolution in the cosmic star formation rate) then the VLA can discover a 10^3 years-old GRB remnant in the Virgo cluster. Nearby GRB remnants could be searched for and resolved at radio frequencies, and then identified as distinct from supernova remnants based on the detection of the extended emission of high-ionization lines in follow--up optical observations. | Source: | arXiv, astro-ph/9907110 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |