ALMA Detections of CO Emission in the Most Luminous, Heavily Dust-obscured Quasars at z > 3
We report the results of a pilot study of CO(4 − 3) emission line of three Wide-field Infrared Survey Explorer (WISE)-selected hyper-luminous, dust-obscured quasars (QSOs) with sensitive ALMA Band 3 observations. These obscured QSOs with L bol > 1014 L ⊙ are among the most luminous objects in the...
| Main Authors: | , , , |
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| Format: | Journal Article |
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Institute of Physics Publishing
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/67669 |
| _version_ | 1848761627161133056 |
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| author | Fan, L. Knudsen, K. Fogasy, J. Drouart, Guillaume |
| author_facet | Fan, L. Knudsen, K. Fogasy, J. Drouart, Guillaume |
| author_sort | Fan, L. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We report the results of a pilot study of CO(4 − 3) emission line of three Wide-field Infrared Survey Explorer (WISE)-selected hyper-luminous, dust-obscured quasars (QSOs) with sensitive ALMA Band 3 observations. These obscured QSOs with L bol > 1014 L ⊙ are among the most luminous objects in the universe. All three QSO hosts are clearly detected both in continuum and in CO(4 − 3) emission line. Based on CO(4 − 3) emission line detection, we derive the molecular gas masses (~1010−11 M ⊙), suggesting that these QSOs are gas-rich systems. We find that the obscured QSOs in our sample follow the similar ${L}_{\mathrm{CO}}^{{\prime} }\mbox{--}{L}_{\mathrm{FIR}}$ relation as unobscured QSOs at high redshifts. We also find the complex velocity structures of CO(4 − 3) emission line, which provide the possible evidence for a gas-rich merger in W0149+2350 and possible molecular outflow in W0220+0137 and W0410−0913. Massive molecular outflow can blow away the obscured interstellar medium and make obscured QSOs evolve toward the UV/optical bright, unobscured phase. Our result is consistent with the popular active galactic nucleus (AGN) feedback scenario involving the co-evolution between the supermassive black holes and host galaxy. |
| first_indexed | 2025-11-14T10:34:40Z |
| format | Journal Article |
| id | curtin-20.500.11937-67669 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:34:40Z |
| publishDate | 2018 |
| publisher | Institute of Physics Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-676692018-09-28T00:19:49Z ALMA Detections of CO Emission in the Most Luminous, Heavily Dust-obscured Quasars at z > 3 Fan, L. Knudsen, K. Fogasy, J. Drouart, Guillaume We report the results of a pilot study of CO(4 − 3) emission line of three Wide-field Infrared Survey Explorer (WISE)-selected hyper-luminous, dust-obscured quasars (QSOs) with sensitive ALMA Band 3 observations. These obscured QSOs with L bol > 1014 L ⊙ are among the most luminous objects in the universe. All three QSO hosts are clearly detected both in continuum and in CO(4 − 3) emission line. Based on CO(4 − 3) emission line detection, we derive the molecular gas masses (~1010−11 M ⊙), suggesting that these QSOs are gas-rich systems. We find that the obscured QSOs in our sample follow the similar ${L}_{\mathrm{CO}}^{{\prime} }\mbox{--}{L}_{\mathrm{FIR}}$ relation as unobscured QSOs at high redshifts. We also find the complex velocity structures of CO(4 − 3) emission line, which provide the possible evidence for a gas-rich merger in W0149+2350 and possible molecular outflow in W0220+0137 and W0410−0913. Massive molecular outflow can blow away the obscured interstellar medium and make obscured QSOs evolve toward the UV/optical bright, unobscured phase. Our result is consistent with the popular active galactic nucleus (AGN) feedback scenario involving the co-evolution between the supermassive black holes and host galaxy. 2018 Journal Article http://hdl.handle.net/20.500.11937/67669 10.3847/2041-8213/aab496 Institute of Physics Publishing fulltext |
| spellingShingle | Fan, L. Knudsen, K. Fogasy, J. Drouart, Guillaume ALMA Detections of CO Emission in the Most Luminous, Heavily Dust-obscured Quasars at z > 3 |
| title | ALMA Detections of CO Emission in the Most Luminous, Heavily Dust-obscured Quasars at z > 3 |
| title_full | ALMA Detections of CO Emission in the Most Luminous, Heavily Dust-obscured Quasars at z > 3 |
| title_fullStr | ALMA Detections of CO Emission in the Most Luminous, Heavily Dust-obscured Quasars at z > 3 |
| title_full_unstemmed | ALMA Detections of CO Emission in the Most Luminous, Heavily Dust-obscured Quasars at z > 3 |
| title_short | ALMA Detections of CO Emission in the Most Luminous, Heavily Dust-obscured Quasars at z > 3 |
| title_sort | alma detections of co emission in the most luminous, heavily dust-obscured quasars at z > 3 |
| url | http://hdl.handle.net/20.500.11937/67669 |