AEGIS: Host Galaxy Morphologies of X-Ray-selected and Infrared-selected Active Galactic Nuclei at 0.2 ≤ z < 1.2 | Zendy

C. M. Pierce | Zendy; Jennifer M. Lotz | Zendy; E. S. Laird | Zendy; Lihwai Lin | Zendy; K. Nandra | Zendy; Joel R. Primack | Zendy; S. M. Faber | Zendy; P. Barmby | Zendy; S. Q. Park | Zendy; S. P. Willner | Zendy; Stephen Gwyn | Zendy; David C. Koo | Zendy; Alison L. Coil | Zendy; Michael C. Cooper | Zendy; A. Georgakakis | Zendy; Anton M. Koekemoer | Zendy; K. G. Noeske | Zendy; Benjamin J. Weiner | Zendy; Christopher N. A. Willmer | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

AEGIS: Host Galaxy Morphologies of X-Ray-selected and Infrared-selected Active Galactic Nuclei at 0.2 ≤ z < 1.2

Author(s) -

C. M. Pierce,

Jennifer M. Lotz,

E. S. Laird,

Lihwai Lin,

K. Nandra,

Joel R. Primack,

S. M. Faber,

P. Barmby,

S. Q. Park,

S. P. Willner,

Stephen Gwyn,

David C. Koo,

Alison L. Coil,

Michael C. Cooper,

A. Georgakakis,

Anton M. Koekemoer,

K. G. Noeske,

Benjamin J. Weiner,

Christopher N. A. Willmer

Publication year - 2007

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/517922

Subject(s) - physics , astrophysics , active galactic nucleus , galaxy , redshift , population , infrared , galaxy formation and evolution , flux (metallurgy) , astronomy , chemistry , demography , organic chemistry , sociology

We visually and quantitatively determine the host galaxy morphologies of 94intermediate redshift (0.2 < z < 1.2) active galactic nuclei (AGN), selectedusing Chandra X-ray and Spitzer mid-infrared data in the Extended Groth Strip.Using recently developed morphology measures, the second-order moment of thebrightest 20% of a galaxy's flux (M_{20}) and the Gini coefficient, we findthat X-ray-selected AGN mostly reside in E/S0/Sa galaxies (53^{+11}_{-10}%),while IR-selected AGN show no clear preference for host morphology.X-ray-selected AGN hosts are members of close pairs more often than the fieldpopulation by a factor of 3.3+/-1.4, but most of these pair members appear tobe undisturbed early-type galaxies and do not tend to show direct evidence ofgravitational perturbations or interactions. Thus, the activation mechanism forAGN activity remains unknown, even for pair members.Comment: 11 pages, 2 figures, 1 table, accepted for publication in ApJ

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research