Star formation in AGN hosts in GOODS-N
Sensitive Herschel far-infrared observations can break degeneracies that were inherent to previous studies of star formation in high-z AGN hosts. Combining PACS 100 and 160 μm observations of the GOODS-N field with 2 Ms Chandra data, we detect ∼20% of X-ray AGN individually at >3σ. The host f...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2010
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| _version_ | 1797103350437642240 |
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| author | Shao, L Lutz, D Nordon, R Maiolino, R Alexander, D Altieri, B Andreani, P Aussel, H Bauer, F Berta, S Bongiovanni, A Brandt, W Brusa, M Cava, A Cepa, J Cimatti, A Daddi, E Dominguez-Sanchez, H Elbaz, D Förster Schreiber, N Geis, N Genzel, R Grazian, A Gruppioni, C Magdis, G |
| author_facet | Shao, L Lutz, D Nordon, R Maiolino, R Alexander, D Altieri, B Andreani, P Aussel, H Bauer, F Berta, S Bongiovanni, A Brandt, W Brusa, M Cava, A Cepa, J Cimatti, A Daddi, E Dominguez-Sanchez, H Elbaz, D Förster Schreiber, N Geis, N Genzel, R Grazian, A Gruppioni, C Magdis, G |
| author_sort | Shao, L |
| collection | OXFORD |
| description | Sensitive Herschel far-infrared observations can break degeneracies that were inherent to previous studies of star formation in high-z AGN hosts. Combining PACS 100 and 160 μm observations of the GOODS-N field with 2 Ms Chandra data, we detect ∼20% of X-ray AGN individually at >3σ. The host far-infrared luminosity of AGN with L2-10 keV ≈ 10 43 erg s-1 increases with redshift by an order of magnitude from z = 0 to z ∼ 1. In contrast, there is little dependence of far-infrared luminosity on AGN luminosity, for L2-10∼ keV 10 44 erg s-1 AGN at z ≳ 1. We do not find a dependence of far-infrared luminosity on X-ray obscuring column, for our sample which is dominated by L2-10∼ keV}}$ < 1044 erg s -1 AGN. In conjunction with properties of local and luminous high-z AGN, we interpret these results as reflecting the interplay between two paths of AGN/host coevolution. A correlation of AGN luminosity and host star formation is traced locally over a wide range of luminosities and also extends to luminous high-z AGN. This correlation reflects an evolutionary connection, likely via merging. For lower AGN luminosities, star formation is similar to that in non-active massive galaxies and shows little dependence on AGN luminosity. The level of this secular, non-merger driven star formation increasingly dominates over the correlation at increasing redshift. © 2010 ESO. |
| first_indexed | 2024-03-07T06:18:54Z |
| format | Journal article |
| id | oxford-uuid:f209d9f7-e3e6-4c43-8293-fba942184b9d |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:18:54Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:f209d9f7-e3e6-4c43-8293-fba942184b9d2022-03-27T12:00:38ZStar formation in AGN hosts in GOODS-NJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f209d9f7-e3e6-4c43-8293-fba942184b9dEnglishSymplectic Elements at Oxford2010Shao, LLutz, DNordon, RMaiolino, RAlexander, DAltieri, BAndreani, PAussel, HBauer, FBerta, SBongiovanni, ABrandt, WBrusa, MCava, ACepa, JCimatti, ADaddi, EDominguez-Sanchez, HElbaz, DFörster Schreiber, NGeis, NGenzel, RGrazian, AGruppioni, CMagdis, GSensitive Herschel far-infrared observations can break degeneracies that were inherent to previous studies of star formation in high-z AGN hosts. Combining PACS 100 and 160 μm observations of the GOODS-N field with 2 Ms Chandra data, we detect ∼20% of X-ray AGN individually at >3σ. The host far-infrared luminosity of AGN with L2-10 keV ≈ 10 43 erg s-1 increases with redshift by an order of magnitude from z = 0 to z ∼ 1. In contrast, there is little dependence of far-infrared luminosity on AGN luminosity, for L2-10∼ keV 10 44 erg s-1 AGN at z ≳ 1. We do not find a dependence of far-infrared luminosity on X-ray obscuring column, for our sample which is dominated by L2-10∼ keV}}$ < 1044 erg s -1 AGN. In conjunction with properties of local and luminous high-z AGN, we interpret these results as reflecting the interplay between two paths of AGN/host coevolution. A correlation of AGN luminosity and host star formation is traced locally over a wide range of luminosities and also extends to luminous high-z AGN. This correlation reflects an evolutionary connection, likely via merging. For lower AGN luminosities, star formation is similar to that in non-active massive galaxies and shows little dependence on AGN luminosity. The level of this secular, non-merger driven star formation increasingly dominates over the correlation at increasing redshift. © 2010 ESO. |
| spellingShingle | Shao, L Lutz, D Nordon, R Maiolino, R Alexander, D Altieri, B Andreani, P Aussel, H Bauer, F Berta, S Bongiovanni, A Brandt, W Brusa, M Cava, A Cepa, J Cimatti, A Daddi, E Dominguez-Sanchez, H Elbaz, D Förster Schreiber, N Geis, N Genzel, R Grazian, A Gruppioni, C Magdis, G Star formation in AGN hosts in GOODS-N |
| title | Star formation in AGN hosts in GOODS-N |
| title_full | Star formation in AGN hosts in GOODS-N |
| title_fullStr | Star formation in AGN hosts in GOODS-N |
| title_full_unstemmed | Star formation in AGN hosts in GOODS-N |
| title_short | Star formation in AGN hosts in GOODS-N |
| title_sort | star formation in agn hosts in goods n |
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