Detailed multiwavelength modelling of the dark GRB 140713A and its host galaxy
We investigate the afterglow of GRB 140713A, a gamma-ray burst (GRB) that was detected and relatively well sampled at X-ray and radio wavelengths, but was not present at optical and near-infrared wavelengths, despite searches to deep limits. We present the emission spectrum of the likely host galaxy...
| Main Authors: | , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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OXFORD UNIV PRESS
2019
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| Subjects: | |
| Online Access: | http://purl.org/au-research/grants/arc/DE180100346 http://hdl.handle.net/20.500.11937/90307 |
| _version_ | 1848765366286680064 |
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| author | Higgins, A.B. Van Der Horst, A.J. Starling, R.L.C. Anderson, Gemma Perley, D. Van Eerten, H. Wiersema, K. Jakobsson, P. Kouveliotou, C. Lamb, G.P. Tanvir, N.R. |
| author_facet | Higgins, A.B. Van Der Horst, A.J. Starling, R.L.C. Anderson, Gemma Perley, D. Van Eerten, H. Wiersema, K. Jakobsson, P. Kouveliotou, C. Lamb, G.P. Tanvir, N.R. |
| author_sort | Higgins, A.B. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We investigate the afterglow of GRB 140713A, a gamma-ray burst (GRB) that was detected and relatively well sampled at X-ray and radio wavelengths, but was not present at optical and near-infrared wavelengths, despite searches to deep limits. We present the emission spectrum of the likely host galaxy at z = 0.935 ruling out a high-redshift explanation for the absence of the optical flux detection. Modelling the GRB multiwavelength afterglow using the radiative transfer hydrodynamics code boxfit provides constraints on physical parameters of the GRB jet and its environment, for instance a relatively wide jet opening angle and an electron energy distribution slope p below 2. Most importantly, the model predicts an optical flux about two orders of magnitude above the observed limits. We calculated that the required host extinction to explain the observed limits in the r, i, and z bands was A rm host-V gt 3.2 mag, equivalent to E(B ' V) host > 1.0 mag. From the X-ray absorption we derive that the GRB host extinction is A rm host-V = 11.6 +7.5-5.3 mag, equivalent to E(B-V) rm host = 3.7 +2.4-1.7 mag, which is consistent with the extinction required from our boxfit derived fluxes. We conclude that the origin of the optical darkness is a high level of extinction in the line of sight to the GRB, most likely within the GRB host galaxy. |
| first_indexed | 2025-11-14T11:34:06Z |
| format | Journal Article |
| id | curtin-20.500.11937-90307 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:34:06Z |
| publishDate | 2019 |
| publisher | OXFORD UNIV PRESS |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-903072023-02-10T00:19:28Z Detailed multiwavelength modelling of the dark GRB 140713A and its host galaxy Higgins, A.B. Van Der Horst, A.J. Starling, R.L.C. Anderson, Gemma Perley, D. Van Eerten, H. Wiersema, K. Jakobsson, P. Kouveliotou, C. Lamb, G.P. Tanvir, N.R. Science & Technology Physical Sciences Astronomy & Astrophysics gamma-ray burst individual GRB140713A GAMMA-RAY BURST RADIO AFTERGLOW COMPLETE SAMPLE EXTINCTION ULTRAVIOLET ABSORPTION GRB-051022 REDSHIFT GHZ We investigate the afterglow of GRB 140713A, a gamma-ray burst (GRB) that was detected and relatively well sampled at X-ray and radio wavelengths, but was not present at optical and near-infrared wavelengths, despite searches to deep limits. We present the emission spectrum of the likely host galaxy at z = 0.935 ruling out a high-redshift explanation for the absence of the optical flux detection. Modelling the GRB multiwavelength afterglow using the radiative transfer hydrodynamics code boxfit provides constraints on physical parameters of the GRB jet and its environment, for instance a relatively wide jet opening angle and an electron energy distribution slope p below 2. Most importantly, the model predicts an optical flux about two orders of magnitude above the observed limits. We calculated that the required host extinction to explain the observed limits in the r, i, and z bands was A rm host-V gt 3.2 mag, equivalent to E(B ' V) host > 1.0 mag. From the X-ray absorption we derive that the GRB host extinction is A rm host-V = 11.6 +7.5-5.3 mag, equivalent to E(B-V) rm host = 3.7 +2.4-1.7 mag, which is consistent with the extinction required from our boxfit derived fluxes. We conclude that the origin of the optical darkness is a high level of extinction in the line of sight to the GRB, most likely within the GRB host galaxy. 2019 Journal Article http://hdl.handle.net/20.500.11937/90307 10.1093/mnras/stz384 English http://purl.org/au-research/grants/arc/DE180100346 OXFORD UNIV PRESS fulltext |
| spellingShingle | Science & Technology Physical Sciences Astronomy & Astrophysics gamma-ray burst individual GRB140713A GAMMA-RAY BURST RADIO AFTERGLOW COMPLETE SAMPLE EXTINCTION ULTRAVIOLET ABSORPTION GRB-051022 REDSHIFT GHZ Higgins, A.B. Van Der Horst, A.J. Starling, R.L.C. Anderson, Gemma Perley, D. Van Eerten, H. Wiersema, K. Jakobsson, P. Kouveliotou, C. Lamb, G.P. Tanvir, N.R. Detailed multiwavelength modelling of the dark GRB 140713A and its host galaxy |
| title | Detailed multiwavelength modelling of the dark GRB 140713A and its host galaxy |
| title_full | Detailed multiwavelength modelling of the dark GRB 140713A and its host galaxy |
| title_fullStr | Detailed multiwavelength modelling of the dark GRB 140713A and its host galaxy |
| title_full_unstemmed | Detailed multiwavelength modelling of the dark GRB 140713A and its host galaxy |
| title_short | Detailed multiwavelength modelling of the dark GRB 140713A and its host galaxy |
| title_sort | detailed multiwavelength modelling of the dark grb 140713a and its host galaxy |
| topic | Science & Technology Physical Sciences Astronomy & Astrophysics gamma-ray burst individual GRB140713A GAMMA-RAY BURST RADIO AFTERGLOW COMPLETE SAMPLE EXTINCTION ULTRAVIOLET ABSORPTION GRB-051022 REDSHIFT GHZ |
| url | http://purl.org/au-research/grants/arc/DE180100346 http://hdl.handle.net/20.500.11937/90307 |