2024-03-29T09:44:42Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1830002020-12-11T08:57:37Zcom_10261_97com_10261_4col_10261_350
The dependence of mass and environment on the secular processes of AGNs in terms of morphology, colour, and specific star-formation rate
Argudo-Fernández, M.
Lacerna, I.
Duarte Puertas, Salvador
Chinese Academy of Sciences
Comisión Nacional de Investigación Científica y Tecnológica (Chile)
Ministerio de Economía y Competitividad (España)
Junta de Andalucía
Comisión Nacional de Investigación Científica y Tecnológica (Chile)
Galaxies: Formation
Galaxies: Evolution
Galaxies: Active
Galaxies: Star formation
Context. Galaxy mass and environment play a major role in the evolution of galaxies. In the transition from star-forming to quenched galaxies, active galactic nuclei (AGNs) also have a principal action therein. However, the connections between these three actors are still uncertain. Aims. In this work we investigate the effects of stellar mass and the large-scale structure (LSS) environment on the fraction of optical nuclear activity in a population of isolated galaxies, where AGN would not be triggered by recent galaxy interactions or mergers. Methods. As a continuation of a previous work, we focus on isolated galaxies to study the effect of stellar mass and the LSS in terms of morphology (early- and late-type), colour (red and blue), and specific star-formation rate (quenched and star-forming). To explore where AGN activity is affected by the LSS, we separate galaxies into two groups, of low- and high mass, respectively, and use the tidal strength parameter to quantify the effects. Results. We found that AGN is strongly affected by stellar mass in >active> galaxies (namely late-type, blue, and star-forming), but that mass has no influence on >quiescent> galaxies (namely early-type, red, and quenched), at least for masses down to 10 M. In relation to the LSS, we found an increase in the fraction of star-forming nuclei galaxies with denser LSS in low-mass star-forming and red isolated galaxies. Regarding AGN, we find a clear increase in the fraction of AGNs with denser environment in quenched and red isolated galaxies, independently of the stellar mass. Conclusions. Active galactic nuclei activity appears to be >mass triggered> in active isolated galaxies. This means that AGN activity is independent of the intrinsic properties of the galaxies, but is dependent on their stellar mass. On the other hand, AGN activity appears to be >environment triggered> in quiescent isolated galaxies, where the fraction of AGNs as a function of specific star formation rate and colour increases from void regions to denser LSS, independently of stellar mass.© ESO 2018.
This work was supported by CONICYT Astronomy Program CAS-CONICYT project No. CAS17002. This work is sponsored by the Chinese Academy of Sciences (CAS), through a grant to the CAS South America Center for Astronomy (CASSACA) in Santiago, Chile. MAF is grateful for financial support from CONICYT FONDECYT project No. 3160304. IL acknowledges partial financial support from PROYECTO FONDECYT REGULAR 1150345. SDP acknowledge financial support from the Spanish Ministerio de Economia y Competitividad under grant AYA2013-47742-C4-1-P, AYA2016-79724-C4-4-P from the Spanish PNAYA, and from Junta de Andalucia Excellence Project PEX2011-FQM-7058.
Peer Reviewed
2019-05-31T08:31:00Z
2019-05-31T08:31:00Z
2018
2019-05-31T08:31:01Z
artículo
http://purl.org/coar/resource_type/c_6501
doi: 10.1051/0004-6361/201833328
issn: 1432-0746
Astronomy and Astrophysics 620: A113 (2018)
http://hdl.handle.net/10261/183000
10.1051/0004-6361/201833328
http://dx.doi.org/10.13039/501100002367
http://dx.doi.org/10.13039/501100002848
http://dx.doi.org/10.13039/501100003329
http://dx.doi.org/10.13039/501100011011
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2013-47742-C4-1-P
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2016-79724-C4-4-P
Publisher's version
Sí
open
EDP Sciences