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Related papers: Spitzer spectra of Seyfert galaxies

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(abridged) We present deep Spitzer mid-infrared spectroscopy, along with 16, 24, 70, and 850um photometry, for 22 galaxies located in GOODS-N. The sample spans a redshift range of 0.6 < z < 2.6, 24um flux densities between ~0.2-1.2 mJy, and…

We study the Polycyclic Aromatic Hydrocarbons (PAH) bands, ionic emission lines, and Mid-infrared continuum properties, in a sample of 171 emission line galaxies taken from literature plus 15 new active galactic nuclei (AGN) Spitzer…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Dinalva A. Sales , M. G. Pastoriza , R. Riffel

We present spectroscopic results for all galaxies observed with the Spitzer Infrared Spectrograph (IRS) which also have total infrared fluxes f(ir) measured with the Infrared Astronomical Satellite (IRAS), also using AKARI photometry when…

Cosmology and Nongalactic Astrophysics · Physics 2015-09-08 Lusine Sargsyan , Daniel Weedman , Vianney Lebouteiller , James Houck , Donald Barry , Ashot Hovhannisyan , Areg Mickaelian

We present mid-IR observations of the prototypical Seyfert 2 galaxy NGC 1068 obtained with ISOCAM between 5 and 16micron. The proximity of this galaxy coupled with the spectro-imaging capabilities of the instrument allow us to separate the…

Astrophysics · Physics 2007-05-23 O. Laurent , I. F. Mirabel , V. Charmandaris , E. Le Floc'h , D. Lutz , R. Genzel

We present rest frame mid-infrared spectroscopy of a sample of 13 submillimeter galaxies, obtained using the Infrared Spectrograph (IRS) on board the Spitzer Space Telescope. The sample includes exclusively bright objects from blank fields…

Astrophysics · Physics 2011-02-11 E. Valiante , D. Lutz , E. Sturm , R. Genzel , L. J. Tacconi , M. D. Lehnert , A. J. Baker

We present a study of the nearby Seyfert galaxy NGC 1068 using mid- and far- infrared data acquired with the IRAC, IRS, and MIPS instruments aboard the Spitzer Space Telescope. The images show extensive 8 um and 24 um emission coinciding…

We present ultra-deep mid-IR spectra of 48 infrared-luminous galaxies in the GOODS-South field obtained with the InfraRed Spectrograph (IRS) on the Spitzer Space Telescope. These galaxies are selected among faint infrared sources (0.14 -…

Cosmology and Nongalactic Astrophysics · Physics 2017-03-22 D. Fadda , L. Yan , G. Lagache , A. Sajina , D. Lutz , S. Wuyts , D. T. Frayer , D. Marcillac , E. Le Floc'h , K. Caputi , H. W. W. Spoon , S. Veilleux , A. Blain , G. Helou

We present a detailed investigation of the near-to-far infrared (IR) spectral energy distribution (SED) of a large sample of Spitzer-observed active galactic nuclei (AGN). We fitted the spectra of 51 narrow line Seyfert 1 galaxies (NLS1s)…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Rivay Mor , Hagai Netzer

We present 180 AGN candidates based on color selection from the IRAS slow-scan deep observations, with color criteria broadened from the initial Point-Source Catalog samples to include similar objects with redshifts up to z=1 and allowing…

We provide a comprehensive census of the near-Infrared (NIR, 0.8-2.4 $\mu$m) spectroscopic properties of 102 nearby (z < 0.075) active galactic nuclei (AGN), selected in the hard X-ray band (14-195 keV) from the Swift-Burst Alert Telescope…

Low-resolution, mid-infrared Spitzer/IRS spectral maps are presented for three nearby, low-metallicity dwarf galaxies (NGC 55, NGC 3109 and IC 5152) for the purpose of examining the spatial distribution and variation of polycyclic aromatic…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Korey Haynes , John M. Cannon , Evan D. Skillman , Dale C. Jackson , Robert D. Gehrz

We queried the Spitzer archive for high-resolution observations with the Infrared Spectrograph of optically selected active galactic nuclei (AGN) for the purpose of identifying sources with resolved fine-structure lines that would enable…

Cosmology and Nongalactic Astrophysics · Physics 2011-10-21 K. M. Dasyra , L. C. Ho , H. Netzer , F. Combes , B. Trakhtenbrot , E. Sturm , L. Armus , D. Elbaz

We present Spitzer 7-38um spectra for a 24um flux limited sample of galaxies at z~0.7 in the COSMOS field. The detailed high-quality spectra allow us to cleanly separate star formation (SF) and active galactic nucleus (AGN) in individual…

We present deep Spitzer/IRS spectra for complete samples of 46 2Jy radio galaxies (0.05<z<0.7) and 19 3CRR FRII radio galaxies (z<0.1), and use the detection of polycyclic aromatic hydrocarbon (PAH) features to examine the incidence of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 D. Dicken , C. Tadhunter , D. Axon , R. Morganti , A. Robinson , M. B. N. Kouwenhoven , H. Spoon , P. Kharb , K. J. Inskip , J. Holt , C. Ramos Almeida , N. P. H. Nesvadba

We infer and compare the specific X-ray luminosity distributions for a sample of massive (i.e. $\log_{10} (M*/M\odot) > 10.5$) galaxies split according to their far-infrared-derived star-forming properties (i.e., starburst and…

Astrophysics of Galaxies · Physics 2019-07-10 L. P. Grimmett , J. R. Mullaney , S. Jin , E. Bernhard , E. Daddi , K. Walters

Near infrared spectra with resolution R ~ 1100 in the rest wavelength range 1.8-2.2 microns have been obtained for a complete sample of 33 ultraluminous infrared galaxies. Of the 33 objects observed, 2 show evidence of a central AGN through…

Astrophysics · Physics 2012-08-27 T. W. Murphy, , B. T. Soifer , K. Matthews , J. R. Kiger , L. Armus

Approximately 20-30% of 1.4<z<2.5 galaxies with K<22 (Vega) detected with Spitzer MIPS at 24um show excess mid-IR emission relative to that expected based on the rates of star formation measured from other multiwavelength data.These…

We present the first AGN census in a sample of 61 galaxies selected at 70microns, a wavelength which should strongly favour the detection of star-forming systems. For the purpose of this study we take advantage of deep Chandra X-ray and…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 M. Symeonidis , D. Rosario , A. Georgakakis , J. Harker , E. S. Laird , M. J. Page

We have performed a spectroscopic study of 7 Type 2 QSOs using the mid-infrared spectrometer IRS on board the Spitzer Space Telescope. These are (to our knowledge) the first mid-IR spectra of X-ray selected QSO2s taken. The objects have…

Astrophysics · Physics 2009-11-11 E. Sturm , G. Hasinger , I. Lehmann , V. Mainieri , R. Genzel , M. D. Lehnert , D. Lutz , L. J. Tacconi

We have carried out a statistical study on the mid- and far-infrared (IR) properties of Galactic IR bubbles observed by Spitzer. Using the Spitzer 8 ${\mu}{\rm m}$ images, we estimated the radii and covering fractions of their shells, and…

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