Results 151 to 160 of about 73,764 (311)

Luminous buried AGNs as a function of galaxy infrared luminosity revealed through Spitzer low-resolution infrared spectroscopy

open access: yes, 2009
We present the results of Spitzer IRS infrared 5-35 micron low-resolution spectroscopic energy diagnostics of ultraluminous infrared galaxies (ULIRGs) at z > 0.15, classified optically as non-Seyferts.
Brandl   +31 more
core   +1 more source

Recent Star Formation in Very Luminous Infrared Galaxies [PDF]

open access: yes, 2001
Among star forming galaxies, a spectral combination of a strong Hdelta line in absorption and a moderate [OII] emission has been suggested to be a useful method to identify dusty starburst galaxies at any redshift, on the basis of optical data alone.
Bressan, A.   +2 more
openaire   +2 more sources

Peering through the dust II: $XMM-Newton$ observations of two additional FIRST-2MASS red quasars

open access: yes, 2017
We obtained $XMM-Newton$ observations of two highly luminous dust-reddened quasars, F2M1113+1244 and F2M1656+3821, that appear to be in the early, transitional phase predicted by merger-driven models of quasar/galaxy co-evolution. These sources have been
Glikman, Eilat   +4 more
core   +1 more source

Quasars and Ultraluminous Infrared Galaxies: At the Limit? [PDF]

open access: yes, 1998
We have detected the host galaxies of 16 nearby, radio-quiet quasars using images obtained with the Near-Infrared Camera and Multi-Object Spectrometer (NICMOS).
Cristiani S.   +9 more
core   +3 more sources

GOALS-JWST: Gas Dynamics and Excitation in NGC 7469 Revealed by NIRSpec

open access: yesThe Astrophysical Journal
We present new JWST NIRSpec integral field spectroscopy (IFS) data for the luminous infrared galaxy NGC 7469, a nearby (70.6 Mpc) active galaxy with a Seyfert 1.5 nucleus that drives a highly ionized gas outflow and a prominent nuclear star-forming ring.
Marina Bianchin   +38 more
doaj   +1 more source

Extragalactic Results from the Infrared Space Observatory

open access: yes, 2000
More than a decade ago the IRAS satellite opened the realm of external galaxies for studies in the 10 to 100 micron band and discovered emission from tens of thousands of normal and active galaxies.
Acosta-Pulido JA   +103 more
core   +1 more source

Near Infrared Adaptive Optics Imaging of QSO Host Galaxies [PDF]

open access: yes, 2006
We report near-infrared (primarily H-band) adaptive optics (AO) imaging with the Gemini-N and Subaru Telescopes, of a representative sample of 32 nearby ...
Alan Stockton   +10 more
core   +2 more sources

Unraveling the Nature of the Nuclear Transient AT2020adpi

open access: yesThe Open Journal of Astrophysics
Transient events associated with supermassive black holes provide rare opportunities to study accretion and the environments of supermassive black holes.
Paarmita Pandey   +15 more
doaj   +1 more source

The Spatial Extent of (U)LIRGs in the mid-Infrared I: The Continuum Emission [PDF]

open access: yes, 2010
We present an analysis of the extended mid-infrared (MIR) emission of the Great Observatories All-Sky LIRG Survey (GOALS) sample based on 5-15um low resolution spectra obtained with the IRS on Spitzer.
A. O. Petric   +60 more
core   +3 more sources

Optical and Near-Infrared Imaging of the IRAS 1-Jy Sample of Ultraluminous Infrared Galaxies: II. The Analysis

open access: yes, 2002
The present paper discusses the results from an analysis of the images presented in Paper I (astro-ph/0207373) supplemented with new spectroscopic data obtained at Keck.
Arribas S.   +20 more
core   +1 more source

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