Gamma-ray bursts from massive Population-III stars: clues from the radio band

Journal
Date Issued
2016
Author(s)
Burlon, D.
•
Murphy, T.
•
•
Hancock, P. J.
•
Parry, R.
•
DOI
Abstract
Current models suggest gamma-ray bursts could be used as a way of probing Population-III stars - the first stars in the early Universe. In this paper, we use numerical simulations to demonstrate that late-time radio observations of gamma-ray burst afterglows could provide a means of identifying bursts that originate from Population-III stars, if these were highly massive, independently from their redshift. We then present the results from a pilot study using the Australia Telescope Compact Array at 17 GHz, designed to test the hypothesis that there may be Population-III gamma-ray bursts amongst the current sample of known events. We observed three candidates plus a control gamma-ray burst, and make no detections with upper limits of 20-40 μJy at 500-1300 d post-explosion.
Volume
459
Issue
3
Start page
3356
Uri
Url
Issn Identifier
0035-8711
Ads BibCode
2016MNRAS.459.3356B
Rights
open.access
File(s)
Loading...
Thumbnail Image
Name

1604.03946.pdf

Description
postprint
Size

2.8 MB

Format

Adobe PDF

Checksum (MD5)

c34146c8fdc6c06d0e56ce9b2a97266d

Loading...
Thumbnail Image
Name

stw905.pdf

Description
PDF editoriale
Size

1.26 MB

Format

Adobe PDF

Checksum (MD5)

2afd286939d50bb650ede627f0bf7f8d