publication . Article . Preprint . 2018

The Spitzer-IRAC/MIPS Extragalactic Survey (SIMES): II enhanced nuclear accretion rate in galaxy groups at z$\sim$0.2

Ivano Baronchelli; Giulia Rodighiero; Harry I. Teplitz; Claudia Scarlata; Alberto Franceschini; S. Berta; Laia Barrufet; Mattia Vaccari; Matteo Bonato; Laure Ciesla; ...
Open Access English
  • Published: 16 Apr 2018
  • Publisher: HAL CCSD
  • Country: France
For a sample of star forming galaxies in the redshift interval 0.15$<$z$<$0.3, we study how both the relative strength of the AGN infra-red emission, compared to that due to the star formation (SF), and the numerical fraction of AGNs, change as a function of the total stellar mass of the hosting galaxy group (M$^{*}_{\mathrm{group}}$), between $10^{10.25}$ and $10^{11.9}$M$_{\odot}$. Using a multi-component SED fitting analysis, we separate the contribution of stars, AGN torus and star formation to the total emission at different wavelengths. This technique is applied to a new multi-wavelength data-set in the SIMES field (23 not redundant photometric bands), spa...
Persistent Identifiers
arXiv: Astrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Galaxy AstrophysicsAstrophysics::Earth and Planetary AstrophysicsAstrophysics::Solar and Stellar AstrophysicsAstrophysics::High Energy Astrophysical Phenomena
free text keywords: submillimeter: galaxies, quasars: supermassive black holes, infrared: galaxies, galaxies: evolution, galaxies: groups: general, galaxies: star formation, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Space and Planetary Science, Astronomy and Astrophysics, Redshift, Astrophysics, Galaxy, Active galactic nucleus, Galaxy group, Spectral energy distribution, Stellar mass, Physics, Star formation, Luminous infrared galaxy
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Funded by
Herschel Extragalactic Legacy Project
  • Funder: European Commission (EC)
  • Project Code: 607254
  • Funding stream: FP7 | SP1 | SPA
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