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We present optical spectropolarimetry of the nuclei of 36 Seyfert 1 galaxies, obtained with the William Herschel and the Anglo-Australian Telescopes from 1996 to 1999. In 20 of these, the optical emission from the active nucleus is…

Astrophysics · Physics 2008-11-26 J. E. Smith , S. Young , A. Robinson , E. A. Corbett , M. E. Giannuzzo , D. J. Axon , J. H. Hough

High quality infrared spectra of active galaxies including the stellar absorption features of Si at 1.59 um, CO(6,3) at 1.62 um, and CO(2,0) at 2.29 um are used to measure the stellar mass to light ratio at 1.65 um (M_H/L) and investigate…

Astrophysics · Physics 2007-05-23 E. Oliva , L. Origlia , R. Maiolino , A. F. M. Moorwood

We examine the rest-frame far-infrared emission from powerful radio sources with 1.4GHz luminosity densities of 25<=log(L_1.4/WHz^-1)<=26.5 in the extragalactic Spitzer First Look Survey field. We combine Herschel/SPIRE flux densities with…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 N. Seymour , M. Symeonidis , M. Page , the HerMES Consortium

We investigate the mid-infrared properties of the largest (42 objects) sample of radio-loud narrow-line Seyfert 1 (RL NLS1) collected to date, using data from the Wide-field Infrared Survey Explorer (WISE). We analyse the mid-IR colours of…

Astrophysics of Galaxies · Physics 2015-04-28 A. Caccianiga , S. Anton , L. Ballo , L. Foschini , T. Maccacaro , R. Della Ceca , P. Severgnini , M. J. Marcha , S. Mateos , E. Sani

We present mid-infrared maps and preliminary analysis for 61 galaxies observed with the ISOCAM instrument aboard the Infrared Space Observatory. Many of the general features of galaxies observed at optical wavelengths---spiral arms, disks,…

Astrophysics · Physics 2009-10-31 Daniel A. Dale , Nancy A. Silbermann , George Helou

Polycyclic aromatic hydrocarbon (PAH) emission has been found in both starbursts and modestly starforming galaxies, but the relation between starforming activity and PAH luminosity is still a matter of debate. The different correlation…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Martin Haas , Christian Leipski , Ralf Siebenmorgen , Helmut Meusinger , Holger Drass , Rolf Chini

Using the Spitzer Space Telescope, we have obtained rest frame 9-16mu spectra of 11 quasars and 9 radio galaxies from the 3CRR catalog at redshifts 1.0<z<1.4. This complete flux-limited 178MHz-selected sample is unbiased with respect to…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 C. Leipski , M. Haas , S. P. Willner , M. L. N. Ashby , B. J. Wilkes , G. G. Fazio , R. Antonucci , P. Barthel , R. Chini , P. Ogle , R. Siebenmorgen , F. Heymann

We have analyzed archival \textit{Chandra} and \textit{XMM-Newton} data for two nearly complete homogeneously selected samples of type 2 Seyfert galaxies (Sy2s). These samples were selected based on intrinsic Active Galactic Nuclei (AGN)…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Stephanie M. LaMassa , T. M. Heckman , A. Ptak , L. Martins , V. Wild , P. Sonnentrucker , A. Hornschemeier

We combine data from SDSS and the GALEX and Spitzer observatories to create a sample of galaxies observed homogeneously from the UV to the Far-IR. This sample, consisting of ~460 galaxies observed spectroscopically by SDSS provides a…

We have launched a search for large-scale ($\gapprox$1 kpc) minor-axis outflows in edge-on Seyfert galaxies in order to assess their frequency of occurrence and study their properties. Here we present optical continuum and \han2 line images…

We report on mid- and far-IR Spitzer observations of 7 nearby dusty elliptical galaxies by using the Multiband Imaging Photometer (MIPS) and Infrared Spectrograph (IRS). Our sample galaxies are known to contain an excessive amount of…

Astrophysics · Physics 2015-06-24 H. Kaneda , T. Onaka , T. Kitayama , Y. Okada , I. Sakon

The crystalline silicates features are mainly reflected in infrared bands. The Spitzer Infrared Spectrograph (IRS) collected numerous spectra of various objects and provided a big database to investigate crystalline silicates in a wide…

Astrophysics of Galaxies · Physics 2016-06-01 Rui Chen , Ali Luo , Jiaming Liu , Biwei Jiang

Low spectral resolution (delta lambda/lambda ~ 50) mid-infrared observations with high angular resolution (0.3--0.5'') using the Long Wavelength Spectrometer on the Keck I Telescope are reported of the nuclei of five highly luminous…

Astrophysics · Physics 2009-11-07 B. T. Soifer , G. Neugebauer , K. Matthews , E. Egami , A. J. Weinberger

We present a catalog of Local Universe Near-Infrared Seyfert (LUNIS) \textit{K-}band integral field unit (IFU) data of 88 nearby Active Galactic Nuclei (AGN), curated from SINFONI/VLT and OSIRIS/Keck archival datasets. This catalog includes…

We present 8.4 GHz VLA A-configuration observations of 87 sources from the mid-infrared-selected AGN sample of Rush et al (1993). These 0.25 arcsec resolution observations allow elongated radio structures tens of parsecs in size to be…

Astrophysics · Physics 2009-10-31 Andy Thean , Alan Pedlar , Marek J. Kukula , Stefi A. Baum , Christopher P. O'Dea

We produce an atlas of homogeneously reduced and calibrated low resolution IRS spectra of the nuclear regions of nearby early-type galaxies (i.e. Es and S0s, ETGs), in order to build a reference sample in the mid-infrared window. From the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 R. Rampazzo , P. Panuzzo , O. Vega , A. Marino , A. Bressan , M. S Clemens

We present spectroscopic follow-up observations of 70{\mu}m selected galaxies from the SWIRE XMMLSS and Lockman Hole fields. We have measured spectroscopic redshifts for 293 new sources down to a 70{\mu}m flux limit of 9mJy and R < 22. The…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 H. Patel , D. L. Clements , M. Rowan-Robinson , M. Vaccari

We present 263 optical and near-infrared (NIR) images for 42 Seyfert 1s and 48 Seyfert 2s, selected from the Extended 12-micron Galaxy Sample. Elliptically-averaged profiles are derived from the images, and isophotal radii and magnitudes…

Astrophysics · Physics 2009-10-31 L. K. Hunt , M. A. Malkan , B. Rush , M. D. Bicay , B. O. Nelson , R. M. Stanga , W. Webb

The \textit{Spitzer}/Infrared Spectrograph spectra of three spectroscopically anomalous galaxies (IRAS~F10398+1455, IRAS~F21013-0739 and SDSS~J0808+3948) are modeled in terms of a mixture of warm and cold silicate dust, and warm and cold…

Astrophysics of Galaxies · Physics 2015-08-06 Yanxia Xie , Aigen Li , Lei Hao , Robert Nikutta
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