Abstract Details
| Name: Suchetana Chatterjee Affiliation: Presidency University Conference ID: ASI2016_515 Title : Feedback from Active Galactic Nuclei: Implications from X-ray Surface Brightness Profiles of Galaxies Authors and Co-Authors : Newman, Jeffrey A. (University of Pittsburgh), Jeltema, Tesla (UC Santa Cruz), Myers, Adam D. (University of Wyoming), Aird James (University of Durham) Coil, Alison L. (UC San Diego), Cooper, Michael (UC Irwine) Finoguenov, Alexis (University of Helsinki), Laird Elise (Imperial College), Montero-Dorta, Antonio (University of Utah) Nandra, Kirpal (MPE) Willmer, Christopher (University of Arizona) Yan, Renbin (University of Kentucky) Abstract Type : Poster Abstract Category : Extragalactic astronomy Abstract : With data from the All Wavelength Extended Groth Strip International Survey (AEGIS), we tentatively detect the extended X-ray emission in the interstellar medium (ISM)/intra-cluster medium (ICM) in both active and normal galaxies at 0.3 <= z <= 1.3. The analysis was carried out using matched samples of active galactic nuclei (AGN) host and normal galaxies. We detect excess X-ray emission at scales of 1--10 arcsec at a few sigma significance in the surface brightness profiles of normal galaxies. The observed excess in the surface brightness profiles is suggestive of lower extended emission in AGN hosts compared to normal galaxies. This is qualitatively similar to theoretical predictions of the X-ray surface brightness profile from AGN feedback models, where feedback from AGN is likely to evacuate the gas from the center of the galaxy/cluster. We discuss the uncertainties related to the interpretation of this result and propose prospects of improvement. |