No Evidence for [C II] halos or high-velocity outflows in [zeta] ≥ 6 quasar host galaxies
We study the interstellar medium in a sample of 27 high-redshift quasar host galaxies at z ≳ 6, using the [C II] 158 μm emission line and the underlying dust continuum observed at ∼1 kpc resolution with Atacama Large Millimeter Array. By performing uv-plane spectral stacking of both the high and low...
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| Hauptverfasser: | , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2020 November 27
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| In: |
The astrophysical journal
Year: 2020, Jahrgang: 904, Heft: 2 |
| ISSN: | 1538-4357 |
| DOI: | 10.3847/1538-4357/abc33f |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.3847/1538-4357/abc33f
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| Verfasserangaben: | Mladen Novak, Bram P. Venemans, Fabian Walter, Marcel Neeleman, Melanie Kaasinen, Lichen Liang, Robert Feldmann, Eduardo Bañados, Chris Carilli, Roberto Decarli, Alyssa B. Drake, Xiaohui Fan, Emanuele P. Farina, Chiara Mazzucchelli, Hans-Walter Rix, and Ran Wang |
MARC
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| 100 | 1 | |a Novak, Mladen |e VerfasserIn |0 (DE-588)1226471803 |0 (DE-627)1747638188 |4 aut | |
| 245 | 1 | 0 | |a No Evidence for [C II] halos or high-velocity outflows in [zeta] ≥ 6 quasar host galaxies |c Mladen Novak, Bram P. Venemans, Fabian Walter, Marcel Neeleman, Melanie Kaasinen, Lichen Liang, Robert Feldmann, Eduardo Bañados, Chris Carilli, Roberto Decarli, Alyssa B. Drake, Xiaohui Fan, Emanuele P. Farina, Chiara Mazzucchelli, Hans-Walter Rix, and Ran Wang |
| 246 | 3 | 3 | |a No Evidence for [C II] halos or high-velocity outflows in zeta greater than or similar to 6 quasar host galaxies |
| 264 | 1 | |c 2020 November 27 | |
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| 520 | |a We study the interstellar medium in a sample of 27 high-redshift quasar host galaxies at z ≳ 6, using the [C II] 158 μm emission line and the underlying dust continuum observed at ∼1 kpc resolution with Atacama Large Millimeter Array. By performing uv-plane spectral stacking of both the high and low spatial resolution data, we investigate the spatial and velocity extent of gas and the size of the dust-emitting regions. We find that the average surface brightness profile of both the [C II] and the dust continuum emission can be described by a steep component within a radius of 2 kpc and a shallower component with a scale length of 2 kpc, detected up to ∼10 kpc. The surface brightness of the extended emission drops below ∼1% of the peak at radius of ∼5 kpc, beyond which it constitutes 10%-20% of the total measured flux density. Although the central component of the dust continuum emission is more compact than that of the [C II] emission, the extended components have equivalent profiles. The observed extended components are consistent with those predicted by hydrodynamical simulations of galaxies with similar infrared luminosities, where the dust emission is powered by star formation. The [C II] spectrum measured in the mean uv-plane stacked data can be described by a single Gaussian, with no observable [C II] broad-line emission (velocities in excess of ≳500 km s−1), which would be indicative of outflows. Our findings suggest that we are probing the interstellar medium and associated star formation in the quasar host galaxies up to radii of 10 kpc, whereas we find no evidence for halos or outflows. | ||
| 700 | 1 | |a Venemans, Bram P. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Walter, Fabian |e VerfasserIn |4 aut | |
| 700 | 1 | |a Neeleman, Marcel |e VerfasserIn |4 aut | |
| 700 | 1 | |a Kaasinen, Melanie |d 1994- |e VerfasserIn |0 (DE-588)1198901357 |0 (DE-627)1681083140 |4 aut | |
| 700 | 1 | |a Liang, Lichen |e VerfasserIn |4 aut | |
| 700 | 1 | |a Feldmann, Robert |e VerfasserIn |4 aut | |
| 700 | 1 | |a Bañados Torres, Eduardo |e VerfasserIn |0 (DE-588)1073988821 |0 (DE-627)830105220 |0 (DE-576)435497049 |4 aut | |
| 700 | 1 | |a Carilli, Chris |e VerfasserIn |4 aut | |
| 700 | 1 | |a Decarli, Roberto |e VerfasserIn |4 aut | |
| 700 | 1 | |a Drake, Alyssa B. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Fan, Xiaohui |e VerfasserIn |4 aut | |
| 700 | 1 | |a Farina, Emanuele P. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Mazzucchelli, Chiara |e VerfasserIn |4 aut | |
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| 700 | 1 | |a Wang, Ran |e VerfasserIn |4 aut | |
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