Results 71 to 80 of about 5,290 (158)

Sub-arcsecond CO(1-0) and CO(2-1) observations of the ultraluminous infrared galaxy IRAS 10190+1322

open access: yes, 2007
We present the results of high resolution mapping of the CO(1-0) and CO(2-1) emission of the ultraluminous infrared galaxy (ULIRG) IRAS 10190+1322, with the IRAM interferometer, down to an angular resolution of ~0.3 arcsec. This object is composed of two
Braine   +22 more
core   +1 more source

Ultraluminous Infrared Galaxies: Mergers of Sub‐L* Galaxies? [PDF]

open access: yesThe Astrophysical Journal, 2001
A sample of 27 low-redshift, mostly cool, ultraluminous infrared galaxies (ULIRGs) has been imaged at 1.6 μm with the Hubble Space Telescope (HST) Near-Infrared Camera and Multi-Object Spectrometer (NICMOS). The majority (67%) of the sample's galaxies are multiple-nucleus galaxies with projected separations of up to 17 kpc, and the rest of the sample ...
Michael Rowan-Robinson   +8 more
openaire   +2 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

Building on the Archives: Connecting the CN/CO Intensity Ratio with Global Galaxy Properties in Nearby U/LIRGs

open access: yesThe Astrophysical Journal
We use the CN/CO intensity ratio to obtain the dense gas fraction, f _dense , for a sample of 16 ultraluminous and luminous infrared (IR) galaxies and compare f _dense with a suite of global galaxy properties.
Blake Ledger   +4 more
doaj   +1 more source

APM 08279+5255: an ultraluminous BAL quasar at a redshift z=3.87

open access: yes, 1998
We report on the discovery of a highly luminous, broad absorption line quasar at a redshift of $z=3.87$ which is positionally coincident, within one arcsecond, with the IRAS FSC source F08279+5255.
Edward J. Totten   +13 more
core   +1 more source

A Complete 16 μm Selected Galaxy Sample at z ∼ 1. II. Morphological Analysis

open access: yesThe Astrophysical Journal
We present a morphological analysis of the 16 μ m flux-density-limited galaxy sample at 0.8 < z < 1.3 from Huang et al. (2021). At the targeted redshift, the 16 μ m emission corresponds to the polycyclic aromatic hydrocarbon feature from intense star ...
Piaoran Liang   +4 more
doaj   +1 more source

Star-Forming AGN Host Galaxies

open access: yes, 2001
The symbiosis of nuclear activity and star-formation in galaxies, as manifested in their spectral energy distributions (SEDs) is reviewed. Attention is drawn to an Hertzsprung-Russell diagram-equivalent for such objects, as well as to the importance of ...
Bregman   +49 more
core   +3 more sources

Sensitive Radio Observations of High Redshift Dusty QSOs [PDF]

open access: yes, 1999
We present sensitive radio continuum imaging at 1.4 GHz and 4.9 GHz of seven high redshift QSOs selected for having a 240 GHz continuum detection, which is thought to be thermal dust emission.
Benford D. J.   +17 more
core   +2 more sources

JWST Discovery of a Very Fast Biconical Outflow of Warm Molecular Gas in the Nearby Ultraluminous Infrared Galaxy F08572+3915 NW

open access: yesThe Astrophysical Journal
We present new James Webb Space Telescope (JWST) Mid-Infrared Instrument Medium-Resolution Spectrometer observations of the nearby ultraluminous infrared galaxy (ULIRG) F08572+3915 NW. These integral field spectroscopic (IFS) data reveal a kpc-scale warm-
Kylie Yui Dan   +11 more
doaj   +1 more source

Extinction law in ultraluminous infrared galaxies at z∼ 1 [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2011
We analyze the multi-wavelength photometric and spectroscopic data of 12 ultraluminous infrared galaxies (ULIRGs) at z ~ 1 and compare them with models of stars and dust in order to study the extinction law and star formation in young infrared (IR) galaxies.
Shimizu, T.   +5 more
openaire   +5 more sources

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