Pereira-Santaella, M;
Spinoglio, L;
Busquet, G;
Glenn, J;
Isaak, K;
Kamenetzky, J;
Rangwala, N;
... Cormier, D; + view all
(2012)
Mid-J CO Emission in Nearby Seyfert Galaxies.
In: Packham, C and Mason, R and Alonso-Herrero, A, (eds.)
Proceedings of the TORUS Workshop 2012 Conference.
University of Texas at San Antonio: Texas, USA.
Preview |
Text
1301.3365v1.pdf - Accepted Version Download (322kB) | Preview |
Abstract
We study for the first time the complete sub-millimeter spectra (450 GHz to 1550 GHz) of a sample of nearby active galaxies observed with the SPIRE Fourier Transform Spectrometer (SPIRE/FTS) onboard Herschel. The CO ladder (from Jup = 4 to 12) is the most prominent spectral feature in this range. These CO lines probe warm molecular gas that can be heated by ultraviolet photons, shocks, or X-rays originated in the active galactic nucleus or in young star-forming regions. In these proceedings we investigate the physical origin of the CO emission using the averaged CO spectral line energy distribution (SLED) of six Seyfert galaxies. We use a radiative transfer model assuming an isothermal homogeneous medium to estimate the molecular gas conditions. We also compare this CO SLED with the predictions of photon and X-ray dominated region (PDR and XDR) models.
| Type: | Proceedings paper |
|---|---|
| Title: | Mid-J CO Emission in Nearby Seyfert Galaxies |
| Event: | TORUS Workshop 2012 Conference |
| Open access status: | An open access version is available from UCL Discovery |
| Publisher version: | https://digital.utsa.edu/digital/collection/p15125... |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | astro-ph.GA, astro-ph.GA |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10095579 |
Archive Staff Only
 |
View Item |
