Blowing star formation away in AGN Hosts (BAH) -- I. Observation of Warm Molecular Outflows with JWST MIRI
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arXiv
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| Autori principali: | , , , , , , |
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| Natura: | Preprint |
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2024
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| author | Costa-Souza, J. H. Riffel, Rogemar A. Souza-Oliveira, Gabriel L. Zakamska, Nadia L. Bianchin, Marina Storchi-Bergmann, Thaisa Riffel, Rogério |
| author_facet | Costa-Souza, J. H. Riffel, Rogemar A. Souza-Oliveira, Gabriel L. Zakamska, Nadia L. Bianchin, Marina Storchi-Bergmann, Thaisa Riffel, Rogério |
| contents | We use the James Webb Space Telescope (JWST) Mid-Infrared Instrument (MIRI) medium-resolution spectrometer (MRS) observations of the radio loud AGN host UGC 8782 to map the warm molecular and ionized gas kinematics. The data reveal spatially resolved outflows in the inner 2 kpc, seen in low ionization (traced by the [Ar ii] 6.99um emission) and in warm molecular gas (traced by the H2 rotational transitions). We find a maximum mass-outflow rate of 4.90 (2.04) M/yr at ~900 pc from the nucleus for the warm outflow (198 K< T< 1000 K) and estimate and outflow rate of up to 1.22 (0.51) M/yr for the hotter gas phase (T > 1000 K). These outflows can clear the entire nuclear reservoir of warm molecular gas in about 1 Myr. The derived kinetic power of the molecular outflows lead to coupling efficiencies of 2-5 percent of the AGN luminosity, way above the minimum expected to the AGN feedback be effective quenching the star formation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_06100 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Blowing star formation away in AGN Hosts (BAH) -- I. Observation of Warm Molecular Outflows with JWST MIRI Costa-Souza, J. H. Riffel, Rogemar A. Souza-Oliveira, Gabriel L. Zakamska, Nadia L. Bianchin, Marina Storchi-Bergmann, Thaisa Riffel, Rogério Astrophysics of Galaxies We use the James Webb Space Telescope (JWST) Mid-Infrared Instrument (MIRI) medium-resolution spectrometer (MRS) observations of the radio loud AGN host UGC 8782 to map the warm molecular and ionized gas kinematics. The data reveal spatially resolved outflows in the inner 2 kpc, seen in low ionization (traced by the [Ar ii] 6.99um emission) and in warm molecular gas (traced by the H2 rotational transitions). We find a maximum mass-outflow rate of 4.90 (2.04) M/yr at ~900 pc from the nucleus for the warm outflow (198 K< T< 1000 K) and estimate and outflow rate of up to 1.22 (0.51) M/yr for the hotter gas phase (T > 1000 K). These outflows can clear the entire nuclear reservoir of warm molecular gas in about 1 Myr. The derived kinetic power of the molecular outflows lead to coupling efficiencies of 2-5 percent of the AGN luminosity, way above the minimum expected to the AGN feedback be effective quenching the star formation. |
| title | Blowing star formation away in AGN Hosts (BAH) -- I. Observation of Warm Molecular Outflows with JWST MIRI |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2408.06100 |