Logo del repository
  1. Home
 
Opzioni

SUPER VII. Morphology and Kinematics of Ha emission in AGN host galaxies at Cosmic noon using SINFONI

D Kakkad
•
V Mainieri
•
G Vietri
altro
L Zappacosta
2023
  • journal article

Periodico
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Abstract
We present spatially resolved H alpha properties of 21 type 1 AGN host galaxies at z similar to 2 derived from the SUPER survey. These targets were observed with the adaptive optics capabilities of the SINFONI spectrograph, a near-infrared integral field spectrograph, that provided a median spatial resolution of 0.3 arcsec (similar to 2 kpc). We model the H alpha emission line profile in each pixel to investigate whether it traces gas in the narrow line region or if it is associated with star formation. To do this, we first investigate the presence of resolved H alpha emission after subtracting the AGN PSF. We find extended H alpha emission in 16 out of the 21 type 1 AGN host galaxies (76 per cent). Based on the BPT diagnostics, optical line flux ratios and line widths (FWHM), we show that the H alpha emission in five galaxies is ionized by the AGN (30 per cent), in four galaxies by star formation (25 per cent) and for the rest (45 per cent), the ionization source is unconstrained. Two galaxies show extended H alpha FWHM >600 km s(-1), which is interpreted as a part of an AGN-driven outflow. Morphological and kinematic maps of H alpha emission in targets with sufficient signal-to-noise ratio suggest the presence of rotationally supported discs in six galaxies and possible presence of companions in four galaxies. In two galaxies, we find an anticorrelation between the locations of extended H alpha emission and [O iii]-based ionized outflows, indicating possible negative feedback at play. However, in the majority of galaxies, we do not find evidence of outflows impacting H alpha-based star formation.
DOI
10.1093/mnras/stad439
WOS
WOS:000943248300007
Archivio
https://hdl.handle.net/11368/3053185
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85159338258
https://academic.oup.com/mnras/article/520/4/5783/7033431
Diritti
open access
license:copyright editore
license uri:iris.pri02
Soggetti
  • galaxies active

  • galaxies evolution

  • galaxies high-redshif...

  • galaxies kinematics a...

  • quasars supermassive ...

  • galaxies star formati...

google-scholar
Get Involved!
  • Source Code
  • Documentation
  • Slack Channel
Make it your own

DSpace-CRIS can be extensively configured to meet your needs. Decide which information need to be collected and available with fine-grained security. Start updating the theme to match your nstitution's web identity.

Need professional help?

The original creators of DSpace-CRIS at 4Science can take your project to the next level, get in touch!

Realizzato con Software DSpace-CRIS - Estensione mantenuta e ottimizzata da 4Science

  • Impostazioni dei cookie
  • Informativa sulla privacy
  • Accordo con l'utente finale
  • Invia il tuo Feedback