activity
19992006
collaborators

8 papers

astro-ph2006

Detecting Obscured AGN in the Distant Universe with Spitzer

J. L. Donley, G. H. Rieke, P. G. Perez-Gonzalez +2

We present the results of a Spitzer search for obscured AGN in the Chandra Deep Field-North, using both radio-excess and mid-infrared power-law selection. AGN selected via the form…

astro-ph2005

Reduction Algorithms for the Multiband Imaging Photometer for Spitzer: 6 Months of Flight Data

K. D. Gordon, G. H. Rieke, C. W. Engelbracht +27

The first six months of flight data from the Multiband Imaging Photometer for Spitzer (MIPS) were used to test MIPS reduction algorithms based on extensive preflight laboratory dat…

astro-ph2004

24 micron Properties of X-ray Selected AGN

J. R. Rigby, G. H. Rieke, R. Maiolino +13

We examine the 24 micron to X-ray color of 157 X-ray--selected AGN as a function of X-ray obscuration and optical classification in the Chandra Deep Field South. The sample consist…

astro-ph2002

Massive star formation in Luminous Infrared Galaxies

A. Alonso-Herrero, G. H. Rieke, M. J. Rieke +1

We present HST/NICMOS observations of a sample of LIRGs. We show that active star formation appears to be occurring not only in the bright nuclei of these galaxies, but also in lum…

astro-ph2002

An Infrared View of Local Universe AGN

Almudena Alonso-Herrero

We summarize recent results on the infrared (IR) nuclear properties of Seyfert galaxies. 100% of all Seyfert 1-1.9$ and ~50% of all Seyfert 2s in the CfA and RSA samples observed w…

astro-ph2002

Star Formation Rate estimators: [OII]3727 vs. Halpha for local star-forming galaxies

A. Aragon-Salamanca, A. Alonso-Herrero, J. Gallego +4

The [OII]3727 emission line is frequently used as an indicator of the star formation rate (SFR) despite its complex dependence on metallicity and excitation conditions. We have ana…