Red bulgeless galaxies in SDSS DR7. Are there any AGN hosts?

Abstract

With the main goal of finding bulgeless galaxies harbouring super massive black holes and showing, at most, just residual star formation activity, we have selected a sample of massive bulgeless red sequence galaxies from the SDSS-DR7, based on the NYU-VAGC catalogue. Multivavelength data were retrieved using EURO-VO tools, and the objects are characterised in terms of degree of star formation and the presence of an AGN. We have found seven objects that are quenched massive galaxies, that have no prominent bulge and that show signs of extra activity in their nuclei, five of them being central in their halo. These objects are rather robust candidates for rare systems that, though devoid of a significant bulge, harbor a supermassive black hole with an activity level likely capable of having halted the star formation through feedback.

accepted for publication in MNRAS

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Cited by in corpus (7)

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• The Hunt for Intermediate Mass Black Holes in the JWST Era
• An Optically Obscured AGN in a Low Mass, Irregular Dwarf Galaxy: A Multi-Wavelength Analysis of J1329+3234
• Inside-out star formation quenching and the need for a revision of bulge-disk decomposition concepts for spiral galaxies
• Red galaxies with pseudo-bulges in the SDSS: closer to disk galaxies or to classical bulges?
• Bulgeless Galaxies at Intermediate Redshift: Sample Selection, Colour Properties, and the Existence of Powerful AGN
• Obscured AGNs in Bulgeless Hosts discovered by WISE: The Case Study of SDSS J1224+5555