The low density and magnetization of a massive galaxy halo exposed by a fast radio burst
Present-day galaxies are surrounded by cool and enriched halo gas extending for hundreds of kiloparsecs. This halo gas is thought to be the dominant reservoir of material available to fuel future star formation, but direct constraints on its mass and physical properties have been difficult to obtain...
| Main Authors: | , , , , , , , , , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
AMER ASSOC ADVANCEMENT SCIENCE
2019
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| Subjects: | |
| Online Access: | https://www.science.org/cms/asset/6eb21dd9-e7c2-46c2-b304-7a7752c9c363/pap.pdf http://hdl.handle.net/20.500.11937/91001 |
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| author | Prochaska, J.X. Macquart, Jean-Pierre McQuinn, M. Simha, S. Shannon, Ryan Day, C.K. Marnoch, L. Ryder, S. Deller, A. Bannister, K.W. Bhandari, S. Bordoloi, R. Bunton, J. Cho, H. Flynn, C. Mahony, E.K. Phillips, C. Qiu, H. Tejos, N. |
| author_facet | Prochaska, J.X. Macquart, Jean-Pierre McQuinn, M. Simha, S. Shannon, Ryan Day, C.K. Marnoch, L. Ryder, S. Deller, A. Bannister, K.W. Bhandari, S. Bordoloi, R. Bunton, J. Cho, H. Flynn, C. Mahony, E.K. Phillips, C. Qiu, H. Tejos, N. |
| author_sort | Prochaska, J.X. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Present-day galaxies are surrounded by cool and enriched halo gas extending for hundreds of kiloparsecs. This halo gas is thought to be the dominant reservoir of material available to fuel future star formation, but direct constraints on its mass and physical properties have been difficult to obtain. We report the detection of a fast radio burst (FRB 181112), localized with arcsecond precision, that passes through the halo of a foreground galaxy. Analysis of the burst shows that the halo gas has low net magnetization and turbulence. Our results imply predominantly diffuse gas in massive galactic halos, even those hosting active supermassive black holes, contrary to some previous results. |
| first_indexed | 2025-11-14T11:35:57Z |
| format | Journal Article |
| id | curtin-20.500.11937-91001 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:35:57Z |
| publishDate | 2019 |
| publisher | AMER ASSOC ADVANCEMENT SCIENCE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-910012023-05-12T04:55:17Z The low density and magnetization of a massive galaxy halo exposed by a fast radio burst Prochaska, J.X. Macquart, Jean-Pierre McQuinn, M. Simha, S. Shannon, Ryan Day, C.K. Marnoch, L. Ryder, S. Deller, A. Bannister, K.W. Bhandari, S. Bordoloi, R. Bunton, J. Cho, H. Flynn, C. Mahony, E.K. Phillips, C. Qiu, H. Tejos, N. Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics CIRCUMGALACTIC MEDIUM HOST GALAXY TURBULENCE IMPACT CONSTRAINTS INSTABILITY EFFICIENT EMISSION SOFTWARE REDSHIFT astro-ph.GA astro-ph.GA Present-day galaxies are surrounded by cool and enriched halo gas extending for hundreds of kiloparsecs. This halo gas is thought to be the dominant reservoir of material available to fuel future star formation, but direct constraints on its mass and physical properties have been difficult to obtain. We report the detection of a fast radio burst (FRB 181112), localized with arcsecond precision, that passes through the halo of a foreground galaxy. Analysis of the burst shows that the halo gas has low net magnetization and turbulence. Our results imply predominantly diffuse gas in massive galactic halos, even those hosting active supermassive black holes, contrary to some previous results. 2019 Journal Article http://hdl.handle.net/20.500.11937/91001 10.1126/science.aay0073 English https://www.science.org/cms/asset/6eb21dd9-e7c2-46c2-b304-7a7752c9c363/pap.pdf http://purl.org/au-research/grants/arc/DP180100857 AMER ASSOC ADVANCEMENT SCIENCE unknown |
| spellingShingle | Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics CIRCUMGALACTIC MEDIUM HOST GALAXY TURBULENCE IMPACT CONSTRAINTS INSTABILITY EFFICIENT EMISSION SOFTWARE REDSHIFT astro-ph.GA astro-ph.GA Prochaska, J.X. Macquart, Jean-Pierre McQuinn, M. Simha, S. Shannon, Ryan Day, C.K. Marnoch, L. Ryder, S. Deller, A. Bannister, K.W. Bhandari, S. Bordoloi, R. Bunton, J. Cho, H. Flynn, C. Mahony, E.K. Phillips, C. Qiu, H. Tejos, N. The low density and magnetization of a massive galaxy halo exposed by a fast radio burst |
| title | The low density and magnetization of a massive galaxy halo exposed by a fast radio burst |
| title_full | The low density and magnetization of a massive galaxy halo exposed by a fast radio burst |
| title_fullStr | The low density and magnetization of a massive galaxy halo exposed by a fast radio burst |
| title_full_unstemmed | The low density and magnetization of a massive galaxy halo exposed by a fast radio burst |
| title_short | The low density and magnetization of a massive galaxy halo exposed by a fast radio burst |
| title_sort | low density and magnetization of a massive galaxy halo exposed by a fast radio burst |
| topic | Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics CIRCUMGALACTIC MEDIUM HOST GALAXY TURBULENCE IMPACT CONSTRAINTS INSTABILITY EFFICIENT EMISSION SOFTWARE REDSHIFT astro-ph.GA astro-ph.GA |
| url | https://www.science.org/cms/asset/6eb21dd9-e7c2-46c2-b304-7a7752c9c363/pap.pdf https://www.science.org/cms/asset/6eb21dd9-e7c2-46c2-b304-7a7752c9c363/pap.pdf http://hdl.handle.net/20.500.11937/91001 |