Results 21 to 30 of about 689 (170)

Southern ultraluminous infrared galaxies: An optical and infrared database [PDF]

open access: yesAstronomy and Astrophysics Supplement Series, 1997
We have carried out an optical and infrared study of 24 ultraluminous infrared galaxies in the southern hemisphere (SULIRGs). This flux limited, complete sample, has been extracted from the redshift survey of IRAS galaxies compiled by Strauss et al. (1992).
Duc, P. A.   +2 more
openaire   +3 more sources

FAR-INFRARED FINE-STRUCTURE LINE DIAGNOSTICS OF ULTRALUMINOUS INFRARED GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2013
We present Herschel observations of six fine-structure lines in 25 Ultraluminous Infrared Galaxies at z<0.27. The lines, [O III]52, [N III]57, [O I]63, [N II]122, [O I]145, and [C II]158, are mostly single gaussians with widths <600 km s-1 and luminosities of 10^7 - 10^9 Solar.
Farrah, D.   +18 more
openaire   +7 more sources

Search for tidal dwarf galaxy candidates in a sample of ultraluminous infrared galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2007
(ABRIDGED) Star-forming small galaxies made out of collisional debris have been found in a variety of merging systems. So far only a few of them are known in ULIRGs although they show clear signs of interactions. Whether external star formation may take place in such objects is an open question. The aim of this paper is to identify and characterise the
Monreal-Ibero, Ana   +3 more
openaire   +4 more sources

AChandraX‐Ray Survey of Ultraluminous Infrared Galaxies [PDF]

open access: yesThe Astrophysical Journal, 2005
40 pages, 5 tables, 14 figures, accepted by ...
Teng, SH   +5 more
openaire   +4 more sources

Formation of Quasar Nuclei in the Hearts of Ultraluminous Infrared Galaxies

open access: yesThe Astrophysical Journal, 1999
6 pages, no figure.
Taniguchi, Yoshiaki   +3 more
openaire   +4 more sources

Investigating the central engine of ultraluminous infrared galaxies: near infrared imaging [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2002
We present 0.5-arcsec-resolution near-infrared images of six ultraluminous infrared galaxies with known redshifts. Six of the eight bright nuclei are resolved on kiloparsec scales, suggesting that there is significant circumnuclear star formation or close progenitor nuclei.
Davies, R., Burston, A., Ward, M.
openaire   +3 more sources

Ultraluminous Infrared Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1999
At luminosities above ~ 1011L⊙, infrared galaxies become the dominant population of extragalactic objects in the local Universe (z < 0.5), being more numerous than optically selected starburst and Seyfert galaxies, and QSOs at comparable bolometric luminosity.
Sanders, D. B.   +2 more
openaire   +4 more sources

Near-Infrared Spectra of Ultraluminous Infrared Galaxies [PDF]

open access: yesThe Astrophysical Journal, 1999
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 either a broad Paschen-alpha line or emission in the 1.963 micron fine structure of [Si VI].
Murphy, Jr., T. W.   +4 more
openaire   +3 more sources

Ultraluminous Infrared Galaxies: Atlas of Near‐Infrared Images [PDF]

open access: yesThe Astrophysical Journal Supplement Series, 2002
To appear in ApJSupp; 9 embedded figures; Complete ps copy with higher resolution figures available at http://www.stsci.edu ...
Bushouse, H A   +8 more
openaire   +3 more sources

The QSO — Ultraluminous Infrared Galaxies Connection [PDF]

open access: yes, 2001
For the past several years, our group has pursued a vigorous ground-based program aimed at understanding the nature of ultraluminous infrared galaxies. We recently published the results from a optical/near-infrared spectroscopic survey of a large statistically complete sample of ultraluminous infrared galaxies (the "IRAS 1-Jy sample").
Veilleux, S.   +2 more
openaire   +2 more sources

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