Deciphering the imprint of AGN feedback in Seyfert galaxies: Nuclear-scale molecular gas deficits
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2024
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866913515398234112 |
|---|---|
| author | García-Burillo, S. Hicks, E. K. S. Alonso-Herrero, A. Pereira-Santaella, M. Usero, A. Querejeta, M. González-Martin, O. Delaney, D. Almeida, C. Ramos Combes, F. Anglés-Alcázar, D. Audibert, A. Bellocchi, E. Davies, R. I. Davis, T. A. Elford, J. S. García-Bernete, I. Hönig, S. Labiano, A. Leist, M. T. Levenson, N. A. López-Rodríguez, E. Mercedes-Feliz, J. Packham, C. Ricci, C. Rosario, D. J. Shimizu, T. Stalevski, M. Zhang, L. |
| author_facet | García-Burillo, S. Hicks, E. K. S. Alonso-Herrero, A. Pereira-Santaella, M. Usero, A. Querejeta, M. González-Martin, O. Delaney, D. Almeida, C. Ramos Combes, F. Anglés-Alcázar, D. Audibert, A. Bellocchi, E. Davies, R. I. Davis, T. A. Elford, J. S. García-Bernete, I. Hönig, S. Labiano, A. Leist, M. T. Levenson, N. A. López-Rodríguez, E. Mercedes-Feliz, J. Packham, C. Ricci, C. Rosario, D. J. Shimizu, T. Stalevski, M. Zhang, L. |
| contents | We use a sample of 64 nearby (D=7-45 Mpc) disk galaxies including 45 AGN and 19 non-AGN, that have high spatial resolution multiline CO observations obtained with the ALMA and/or PdBI arrays to study the distribution of cold molecular gas in their circumunuclear disks (CND). We analyze whether the concentration of cold molecular gas changes as a function of the X-ray luminosity in the 2-10 keV range ($L_{\rm X}$). We also study the concentration of the hot molecular gas using NIR data obtained for the H2 1-0S(1) line. We find a turnover in the distribution of the cold molecular gas concentration as a function of $L_{\rm X}$ with a breakpoint which divides the sample into two branches: the AGN build-up branch ($L_{\rm X}\leq10^{41.5\pm0.3}$erg/s) and the AGN feedback branch ($L_{\rm X}\geq10^{41.5\pm0.3}$erg/s) . Lower luminosity AGN and non-AGN of the AGN build-up branch show high cold molecular gas concentrations and centrally peaked radial profiles on nuclear ($r\leq50$~pc) scales. Higher luminosity AGN of the AGN feedback branch, show a sharp decrease in the concentration of molecular gas and flat or inverted radial profiles. The cold molecular gas concentration index ($CCI$), defined as the ratio of surface densities at $r\leq50$~pc and $r\leq200$~pc , namely $CCI \equiv$~log$_{\rm 10}(Σ^{\rm gas}_{\rm 50}/Σ^{\rm gas}_{\rm 200}$), spans a factor ~4-5 between the galaxies lying at the high end of the AGN build-up branch and the galaxies of the AGN feedback branch. The concentration and radial distributions of the hot molecular gas in our sample follow less extreme trends as a function of the X-ray luminosity. These observations confirm, on a three times larger sample, previous evidence found by the GATOS survey that the imprint of AGN feedback on the CND-scale distribution of molecular gas is more extreme in higher luminosity Seyfert galaxies of the local universe. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_11398 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Deciphering the imprint of AGN feedback in Seyfert galaxies: Nuclear-scale molecular gas deficits García-Burillo, S. Hicks, E. K. S. Alonso-Herrero, A. Pereira-Santaella, M. Usero, A. Querejeta, M. González-Martin, O. Delaney, D. Almeida, C. Ramos Combes, F. Anglés-Alcázar, D. Audibert, A. Bellocchi, E. Davies, R. I. Davis, T. A. Elford, J. S. García-Bernete, I. Hönig, S. Labiano, A. Leist, M. T. Levenson, N. A. López-Rodríguez, E. Mercedes-Feliz, J. Packham, C. Ricci, C. Rosario, D. J. Shimizu, T. Stalevski, M. Zhang, L. Astrophysics of Galaxies We use a sample of 64 nearby (D=7-45 Mpc) disk galaxies including 45 AGN and 19 non-AGN, that have high spatial resolution multiline CO observations obtained with the ALMA and/or PdBI arrays to study the distribution of cold molecular gas in their circumunuclear disks (CND). We analyze whether the concentration of cold molecular gas changes as a function of the X-ray luminosity in the 2-10 keV range ($L_{\rm X}$). We also study the concentration of the hot molecular gas using NIR data obtained for the H2 1-0S(1) line. We find a turnover in the distribution of the cold molecular gas concentration as a function of $L_{\rm X}$ with a breakpoint which divides the sample into two branches: the AGN build-up branch ($L_{\rm X}\leq10^{41.5\pm0.3}$erg/s) and the AGN feedback branch ($L_{\rm X}\geq10^{41.5\pm0.3}$erg/s) . Lower luminosity AGN and non-AGN of the AGN build-up branch show high cold molecular gas concentrations and centrally peaked radial profiles on nuclear ($r\leq50$~pc) scales. Higher luminosity AGN of the AGN feedback branch, show a sharp decrease in the concentration of molecular gas and flat or inverted radial profiles. The cold molecular gas concentration index ($CCI$), defined as the ratio of surface densities at $r\leq50$~pc and $r\leq200$~pc , namely $CCI \equiv$~log$_{\rm 10}(Σ^{\rm gas}_{\rm 50}/Σ^{\rm gas}_{\rm 200}$), spans a factor ~4-5 between the galaxies lying at the high end of the AGN build-up branch and the galaxies of the AGN feedback branch. The concentration and radial distributions of the hot molecular gas in our sample follow less extreme trends as a function of the X-ray luminosity. These observations confirm, on a three times larger sample, previous evidence found by the GATOS survey that the imprint of AGN feedback on the CND-scale distribution of molecular gas is more extreme in higher luminosity Seyfert galaxies of the local universe. |
| title | Deciphering the imprint of AGN feedback in Seyfert galaxies: Nuclear-scale molecular gas deficits |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2406.11398 |