Repositório Digital

A- A A+

The evolution of active galactic nuclei in clusters of galaxies from the Dark Energy Survey

.

The evolution of active galactic nuclei in clusters of galaxies from the Dark Energy Survey

Mostrar registro completo

Estatísticas

Título The evolution of active galactic nuclei in clusters of galaxies from the Dark Energy Survey
Autor Bufanda, E.
Hollowood, D.
Jeltema, Tesla E.
Rykoff, Eli
Rozo, Eduardo
Martini, Paul
Abbott, Timothy M. C.
Abdalla, Filipe B.
Allam, Sahar S.
Banerji, M.
Benoit-Lévy, Aurélien
Bertin, Emmanuel
Brooks, D.
Carnero Rosell, Aurelio
Carrasco Kind, Matías
Carretero Palacios, Jorge
Cunha, Carlos Eduardo
Costa, Luiz N. da
Desai, S.
Diehl, H. Thomas
Dietrich, Jörg P.
Evrard, August E.
Fausti Neto, Angelo
Flaugher, Brenna
Frieman, Joshua A.
Gerdes, David W.
Goldstein, Daniel Abraham
Gruen, Daniel
Gruendl, Robert A.
Gutierrez, Gaston R.
Honscheid, K.
James, David J.
Kuehn, Kyler
Kuropatkin, Nikolay P.
Lima, Marcos Vinicius Borges Teixeira
Maia, Marcio Antonio Geimba
Marshall, Jennifer L.
Melchior, Peter M.
Miquel, Ramon
Mohr, Joseph J.
Ogando, Ricardo L.C.
Plazas Malagón, Andrés Alejandro
Romer, Anita K.
Rooney, Philip J.
Sanchez-Alvaro, Eusebio
Santiago, Basilio Xavier
Scarpine, Victor Emanuel
Sevilla Noarbe, Ignacio
Smith, Robert Christopher
Soares-Santos, Marcelle
Sobreira, Flávia
Suchyta, Eric
Tarle, Gregory
Thomas, Daniel B.
Tucker, Douglas L.
Walker, Alistair
DES Collaboration
Abstract The correlation between active galactic nuclei (AGNs) and environment provides important clues to AGN fuelling and the relationship of black hole growth to galaxy evolution. In this paper, we analyse the fraction of galaxies in clusters hosting AGN as a function of redshift and cluster richness for X-ray-detected AGN associated with clusters of galaxies in Dark Energy Survey (DES) Science Verification data. The present sample includes 33 AGNs with LX >1043 erg s−1 in non-central, host galaxies with luminosity greater than 0.5L∗ from a total sample of 432 clusters in the redshift range of 0.1 < z < 0.95. Analysis of the present sample reveals that the AGN fraction in red-sequence cluster members has a strong positive correlation with redshift such that the AGN fraction increases by a factor of ∼8 from low to high redshift, and the fraction of cluster galaxies hosting AGN at high redshifts is greater than the low-redshift fraction at 3.6σ. In particular, the AGN fraction increases steeply at the highest redshifts in our sample at z > 0.7. This result is in good agreement with previous work and parallels the increase in star formation in cluster galaxies over the same redshift range. However, the AGN fraction in clusters is observed to have no significant correlation with cluster mass. Future analyses with DES Year 1 through Year 3 data will be able to clarify whether AGN activity is correlated to cluster mass and will tightly constrain the relationship between cluster AGN populations and redshift.
Contido em Monthly notices of the Royal Astronomical Society. Oxford. Vol. 465, no. 3 (Mar. 2017), p. 2531–2539
Assunto Aglomerados de galaxias
Deslocamento para o vermelho
Galáxias ativas
Nucleo galatico
[en] Galaxies active
[en] X-rays galaxies
[en] X-rays galaxies clusters
Origem Estrangeiro
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/159751
Arquivos Descrição Formato
001022099.pdf (333.6Kb) Texto completo Adobe PDF Visualizar/abrir

Este item está licenciado na Creative Commons License

Este item aparece na(s) seguinte(s) coleção(ões)


Mostrar registro completo

Percorrer



  • O autor é titular dos direitos autorais dos documentos disponíveis neste repositório e é vedada, nos termos da lei, a comercialização de qualquer espécie sem sua autorização prévia.
    Projeto gráfico elaborado pelo Caixola - Clube de Criação Fabico/UFRGS Powered by DSpace software, Version 1.8.1.