The host galaxy of FRB 20171020A revisited
The putative host galaxy of FRB 20171020A was first identified as ESO 601-G036 in 2018, but as no repeat bursts have been detected, direct confirmation of the host remains elusive. In light of recent developments in the field, we re-examine this host and determine a new association confidence level...
| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Journal Article |
| Published: |
2023
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| Online Access: | http://purl.org/au-research/grants/arc/DP210102103 http://hdl.handle.net/20.500.11937/94775 |
| _version_ | 1848765920291323904 |
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| author | Lee-Waddell, Karen James, Clancy Ryder, S.D. Mahony, E.K. Bahramian, Arash Koribalski, B.S. Kumar, P. Marnoch, L. North-Hickey, F.O. Sadler, E.M. Shannon, R. Tejos, N. Thorne, J.E. Wang, J. Wayth, Randall |
| author_facet | Lee-Waddell, Karen James, Clancy Ryder, S.D. Mahony, E.K. Bahramian, Arash Koribalski, B.S. Kumar, P. Marnoch, L. North-Hickey, F.O. Sadler, E.M. Shannon, R. Tejos, N. Thorne, J.E. Wang, J. Wayth, Randall |
| author_sort | Lee-Waddell, Karen |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The putative host galaxy of FRB 20171020A was first identified as ESO 601-G036 in 2018, but as no repeat bursts have been detected, direct confirmation of the host remains elusive. In light of recent developments in the field, we re-examine this host and determine a new association confidence level of 98%. At 37 Mpc, this makes ESO 601-G036 the third closest FRB host galaxy to be identified to date and the closest to host an apparently non-repeating FRB (with an estimated repetition rate limit of <![CDATA[ $ bursts per day above erg). Due to its close distance, we are able to perform detailed multi-wavelength analysis on the ESO 601-G036 system. Follow-up observations confirm ESO 601-G036 to be a typical star-forming galaxy with H i and stellar masses of and, and a star formation rate of. We detect, for the first time, a diffuse gaseous tail extending to the south-west that suggests recent interactions, likely with the confirmed nearby companion ESO 601-G037. ESO 601-G037 is a stellar shred located to the south of ESO 601-G036 that has an arc-like morphology, is about an order of magnitude less massive, and has a lower gas metallicity that is indicative of a younger stellar population. The properties of the ESO 601-G036 system indicate an ongoing minor merger event, which is affecting the overall gaseous component of the system and the stars within ESO 601-G037. Such activity is consistent with current FRB progenitor models involving magnetars and the signs of recent interactions in other nearby FRB host galaxies. |
| first_indexed | 2025-11-14T11:42:55Z |
| format | Journal Article |
| id | curtin-20.500.11937-94775 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:42:55Z |
| publishDate | 2023 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-947752024-05-07T05:41:26Z The host galaxy of FRB 20171020A revisited Lee-Waddell, Karen James, Clancy Ryder, S.D. Mahony, E.K. Bahramian, Arash Koribalski, B.S. Kumar, P. Marnoch, L. North-Hickey, F.O. Sadler, E.M. Shannon, R. Tejos, N. Thorne, J.E. Wang, J. Wayth, Randall The putative host galaxy of FRB 20171020A was first identified as ESO 601-G036 in 2018, but as no repeat bursts have been detected, direct confirmation of the host remains elusive. In light of recent developments in the field, we re-examine this host and determine a new association confidence level of 98%. At 37 Mpc, this makes ESO 601-G036 the third closest FRB host galaxy to be identified to date and the closest to host an apparently non-repeating FRB (with an estimated repetition rate limit of <![CDATA[ $ bursts per day above erg). Due to its close distance, we are able to perform detailed multi-wavelength analysis on the ESO 601-G036 system. Follow-up observations confirm ESO 601-G036 to be a typical star-forming galaxy with H i and stellar masses of and, and a star formation rate of. We detect, for the first time, a diffuse gaseous tail extending to the south-west that suggests recent interactions, likely with the confirmed nearby companion ESO 601-G037. ESO 601-G037 is a stellar shred located to the south of ESO 601-G036 that has an arc-like morphology, is about an order of magnitude less massive, and has a lower gas metallicity that is indicative of a younger stellar population. The properties of the ESO 601-G036 system indicate an ongoing minor merger event, which is affecting the overall gaseous component of the system and the stars within ESO 601-G037. Such activity is consistent with current FRB progenitor models involving magnetars and the signs of recent interactions in other nearby FRB host galaxies. 2023 Journal Article http://hdl.handle.net/20.500.11937/94775 10.1017/pasa.2023.27 http://purl.org/au-research/grants/arc/DP210102103 http://purl.org/au-research/grants/arc/DP220102305 http://creativecommons.org/licenses/by/4.0/ fulltext |
| spellingShingle | Lee-Waddell, Karen James, Clancy Ryder, S.D. Mahony, E.K. Bahramian, Arash Koribalski, B.S. Kumar, P. Marnoch, L. North-Hickey, F.O. Sadler, E.M. Shannon, R. Tejos, N. Thorne, J.E. Wang, J. Wayth, Randall The host galaxy of FRB 20171020A revisited |
| title | The host galaxy of FRB 20171020A revisited |
| title_full | The host galaxy of FRB 20171020A revisited |
| title_fullStr | The host galaxy of FRB 20171020A revisited |
| title_full_unstemmed | The host galaxy of FRB 20171020A revisited |
| title_short | The host galaxy of FRB 20171020A revisited |
| title_sort | host galaxy of frb 20171020a revisited |
| url | http://purl.org/au-research/grants/arc/DP210102103 http://purl.org/au-research/grants/arc/DP210102103 http://hdl.handle.net/20.500.11937/94775 |