Gamma-ray bursts from massive Population-III stars: Clues from the radio band
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 burs...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
Oxford University Press
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/39584 |
| _version_ | 1848755630296268800 |
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| author | Burlon, D. Murphy, T. Ghirlanda, G. Hancock, Paul Parry, R. Salvaterra, R. |
| author_facet | Burlon, D. Murphy, T. Ghirlanda, G. Hancock, Paul Parry, R. Salvaterra, R. |
| author_sort | Burlon, D. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T08:59:21Z |
| format | Journal Article |
| id | curtin-20.500.11937-39584 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:59:21Z |
| publishDate | 2016 |
| publisher | Oxford University Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-395842018-03-29T09:07:46Z Gamma-ray bursts from massive Population-III stars: Clues from the radio band Burlon, D. Murphy, T. Ghirlanda, G. Hancock, Paul Parry, R. Salvaterra, R. 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. 2016 Journal Article http://hdl.handle.net/20.500.11937/39584 10.1093/mnras/stw905 Oxford University Press restricted |
| spellingShingle | Burlon, D. Murphy, T. Ghirlanda, G. Hancock, Paul Parry, R. Salvaterra, R. Gamma-ray bursts from massive Population-III stars: Clues from the radio band |
| title | Gamma-ray bursts from massive Population-III stars: Clues from the radio band |
| title_full | Gamma-ray bursts from massive Population-III stars: Clues from the radio band |
| title_fullStr | Gamma-ray bursts from massive Population-III stars: Clues from the radio band |
| title_full_unstemmed | Gamma-ray bursts from massive Population-III stars: Clues from the radio band |
| title_short | Gamma-ray bursts from massive Population-III stars: Clues from the radio band |
| title_sort | gamma-ray bursts from massive population-iii stars: clues from the radio band |
| url | http://hdl.handle.net/20.500.11937/39584 |