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arXiv · astro-ph/0304075

Host galaxies of 2MASS-selected QSOs to redshift 0.3

J. B. Hutchings·N. Maddox·R. M. Cutri·B. O. Nelson
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Abstract

We present and discuss optical imaging of 76 AGN which represent the 2MASS-selected sample for z<0.3, from a full list of 243. They are found to have dust-obscured nuclei, residing in host galaxies that show a high fraction (>70%) of tidal interactions. The derived luminosities of the AGN and host galaxies are similar to traditionally-selected AGN, and they may comprise some 40% of the total AGN population at low redshift. We have measured a number of host galaxy properties, and discuss their distributions and interrelations. We compare the 2MASS AGN with optically selected samples and the IRAS-selected galaxy samples, and discuss the differences in terms of merger processes and initial conditions.

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J. B. Hutchings, N. Maddox, R. M. Cutri, B. O. Nelson. 2003-04-03. Host galaxies of 2MASS-selected QSOs to redshift 0.3. https://doi.org/10.1086/375650

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