Type 2 AGN host galaxies in the Chandra-COSMOS legacy survey: No evidence of AGN-driven quenching
We investigate the star formation properties of a large sample of ∼2300 X-ray-selected Type 2 Active Galactic Nuclei (AGNs) host galaxies out to z ∼ 3 in the Chandra COSMOS Legacy Survey in order to understand the connection between the star formation and nuclear activity. Making use of the existing...
| Huvudupphovsmän: | , , , , , , , , , , , , , , , , , , |
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| Materialtyp: | Journal article |
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IOP Publishing
2017
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| _version_ | 1826289098369794048 |
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| author | Suh, H Civano, F Hasinger, G Lusso, E Lanzuisi, G Marchesi, S Trakhtenbrot, B Allevato, V Cappelluti, N Capak, P Elvis, M Griffiths, R Laigle, C Lira, P Riguccini, L Rosario, D Salvato, M Schawinski, K Vignali, C |
| author_facet | Suh, H Civano, F Hasinger, G Lusso, E Lanzuisi, G Marchesi, S Trakhtenbrot, B Allevato, V Cappelluti, N Capak, P Elvis, M Griffiths, R Laigle, C Lira, P Riguccini, L Rosario, D Salvato, M Schawinski, K Vignali, C |
| author_sort | Suh, H |
| collection | OXFORD |
| description | We investigate the star formation properties of a large sample of ∼2300 X-ray-selected Type 2 Active Galactic Nuclei (AGNs) host galaxies out to z ∼ 3 in the Chandra COSMOS Legacy Survey in order to understand the connection between the star formation and nuclear activity. Making use of the existing multi-wavelength photometric data available in the COSMOS field, we perform a multi-component modeling from far-infrared to near-ultraviolet using a nuclear dust torus model, a stellar population model and a starburst model of the spectral energy distributions (SEDs). Through detailed analyses of SEDs, we derive the stellar masses and the star formation rates (SFRs) of Type 2 AGN host galaxies. The stellar mass of our sample is in the range of 9 < log 1 M M stellar 2 with uncertainties of ∼0.19 dex. We find that Type 2 AGN host galaxies have, on average, similar SFRs compared to the normal star-forming galaxies with similar Mstellar and redshift ranges, suggesting no significant evidence for enhancement or quenching of star formation. This could be interpreted in a scenario, where the relative massive galaxies have already experienced substantial growth at higher redshift (z > 3), and grow slowly through secular fueling processes hosting moderate-luminosity AGNs. |
| first_indexed | 2024-03-07T02:23:42Z |
| format | Journal article |
| id | oxford-uuid:a4db3601-ffb3-43db-971b-481a459f4a8f |
| institution | University of Oxford |
| last_indexed | 2024-03-07T02:23:42Z |
| publishDate | 2017 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | oxford-uuid:a4db3601-ffb3-43db-971b-481a459f4a8f2022-03-27T02:36:32ZType 2 AGN host galaxies in the Chandra-COSMOS legacy survey: No evidence of AGN-driven quenchingJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a4db3601-ffb3-43db-971b-481a459f4a8fSymplectic Elements at OxfordIOP Publishing2017Suh, HCivano, FHasinger, GLusso, ELanzuisi, GMarchesi, STrakhtenbrot, BAllevato, VCappelluti, NCapak, PElvis, MGriffiths, RLaigle, CLira, PRiguccini, LRosario, DSalvato, MSchawinski, KVignali, CWe investigate the star formation properties of a large sample of ∼2300 X-ray-selected Type 2 Active Galactic Nuclei (AGNs) host galaxies out to z ∼ 3 in the Chandra COSMOS Legacy Survey in order to understand the connection between the star formation and nuclear activity. Making use of the existing multi-wavelength photometric data available in the COSMOS field, we perform a multi-component modeling from far-infrared to near-ultraviolet using a nuclear dust torus model, a stellar population model and a starburst model of the spectral energy distributions (SEDs). Through detailed analyses of SEDs, we derive the stellar masses and the star formation rates (SFRs) of Type 2 AGN host galaxies. The stellar mass of our sample is in the range of 9 < log 1 M M stellar 2 with uncertainties of ∼0.19 dex. We find that Type 2 AGN host galaxies have, on average, similar SFRs compared to the normal star-forming galaxies with similar Mstellar and redshift ranges, suggesting no significant evidence for enhancement or quenching of star formation. This could be interpreted in a scenario, where the relative massive galaxies have already experienced substantial growth at higher redshift (z > 3), and grow slowly through secular fueling processes hosting moderate-luminosity AGNs. |
| spellingShingle | Suh, H Civano, F Hasinger, G Lusso, E Lanzuisi, G Marchesi, S Trakhtenbrot, B Allevato, V Cappelluti, N Capak, P Elvis, M Griffiths, R Laigle, C Lira, P Riguccini, L Rosario, D Salvato, M Schawinski, K Vignali, C Type 2 AGN host galaxies in the Chandra-COSMOS legacy survey: No evidence of AGN-driven quenching |
| title | Type 2 AGN host galaxies in the Chandra-COSMOS legacy survey: No evidence of AGN-driven quenching |
| title_full | Type 2 AGN host galaxies in the Chandra-COSMOS legacy survey: No evidence of AGN-driven quenching |
| title_fullStr | Type 2 AGN host galaxies in the Chandra-COSMOS legacy survey: No evidence of AGN-driven quenching |
| title_full_unstemmed | Type 2 AGN host galaxies in the Chandra-COSMOS legacy survey: No evidence of AGN-driven quenching |
| title_short | Type 2 AGN host galaxies in the Chandra-COSMOS legacy survey: No evidence of AGN-driven quenching |
| title_sort | type 2 agn host galaxies in the chandra cosmos legacy survey no evidence of agn driven quenching |
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