Results 11 to 20 of about 6,189 (188)

Mid infrared polarisation of Ultraluminous Infrared Galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2001
The mid infrared polarisation properties of four Ultraluminous Infrared Galaxies (ULIRGs) have been investigated by broad band filter observations with the ISOCAM instrument on board the Infrared Space Observatory (ISO). The wavelength region from 5 to 18 mic. was selected where the emission from the putative torus peaks.
Siebenmorgen, R., Efstathiou, A.
openaire   +2 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 [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

MID-INFRARED SPECTRAL DIAGNOSTICS OF LUMINOUS INFRARED GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2011
accepted for publication in ApJ, 34 pages, 12 ...
Petric, A. O.   +24 more
openaire   +4 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

Hyperluminous infrared galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2000
39 galaxies are now known, from follow-up of faint IRAS sources and from submm observations of high redshift AGN, with far infrared luminosities > 10^{13} Lo. 13 of these, which have been found in 60 or 850 mu surveys, form an important unbiased sub-sample.
openaire   +2 more sources

Ultraluminous Infrared Galaxies [PDF]

open access: yes, 2006
Ever since their discovery in the 1970's, UltraLuminous InfraRed Galaxies (ULIRGs; classically Lir>10^12Lsun) have fascinated astronomers with their immense luminosities, and frustrated them due to their singularly opaque nature, almost in equal measure.
Lonsdale, C. J.   +2 more
openaire   +3 more sources

Infrared polarimetry of galaxies. I - Infrared luminous galaxies

open access: yesThe Astrophysical Journal, 1989
Les observations polarimetriques a 1.2, 1.65 et 2.2 μm sont presentees pour les noyaux de 6 galaxies IR lumineuses: IRAS 05189-2524, UGC 5101, Mrk 231, Mrk 273, Arp 220 et NGC 6240. Les nombreux mecanismes et les geometries responsables de la production de la polarisation dans le proche IR sont discutes en ...
Terry Jay Jones, Dimitri Klebe
openaire   +1 more source

Spectroscopic confirmation of two luminous galaxies at a redshift of 14. [PDF]

open access: yesNature
Carniani S   +44 more
europepmc   +2 more sources

The nature of hyperluminous infrared galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2021
Context. Hyperluminous infrared galaxies (HLIRGs) are shown to have been more abundant in early epochs. The small samples used in earlier studies are not sufficient to draw robust statistical conclusions regarding the physical properties and the power sources of these extreme infrared (IR) bright galaxies. Aims.
Gao, F.   +9 more
openaire   +5 more sources

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