Results 71 to 80 of about 5,377 (132)

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

The 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., Lebouteiller, Vianney, Spoon, H., Bernard-Salas, J., Pearson, C., Rigopoulou, D., Smith, H., González-Alfonso, E., Clements, D., Efstathiou, A., Cormier, D., Afonso, J., Petty, S., Harris, K., Hurley, P., Borys, C., Verma, A., Cooray, A., Salvatelli, V.   +18 more
openaire   +5 more sources

Extended Star Formation in Luminous Infrared Galaxies at z ∼ 1 in the SMILES Field

The Astrophysical Journal
Luminous infrared galaxies (LIRGs) and ultraluminous infrared galaxies (ULIRGs) in the local Universe are highly centrally concentrated in the mid-infrared (MIR) and substantially more likely than non-(U)LIRGs to be involved in mergers.
Michael K. Florian, George H. Rieke, Stacey Alberts, Irene Shivaei, Jakob M. Helton, Jianwei Lyu, Kevin N. Hainline, Zhiyuan Ji   +7 more
doaj   +1 more source

High Resolution Mid-Infrared Imaging of Ultraluminous Infrared Galaxies [PDF]

, 1999
Observations of ultraluminous infrared galaxies (ULIRGs) with an achieved resolution approaching the diffraction limit in the mid-infrared from 8 - 25 $\mu$m using the Keck Telescopes are reported.
A. J. Weinberger, A. S. Evans, B. T. Soifer, Boksenberg A., E. E. Becklin, E. Egami, Elias H., G. Neugebauer, J. A. Surace, J. J. Condon, K. Matthews, M. Ressler, M. W. Werner, Martin J. M., N. Z. Scoville, Werner M. W.   +15 more
core   +4 more sources

Calibrating Mid-infrared Emission Features as Diagnostics of Star Formation in Infrared-luminous Galaxies via Radiative Transfer Modeling

The Astrophysical Journal
Luminous infrared (IR) galaxies are key sites of obscured stellar mass assembly at z > 0.5. Their star formation rates (SFRs) are often estimated using the luminosities of the 6.2 and 11.2 μ m polycyclic aromatic hydrocarbon (PAH) features or those of ...
Loren Robinson, Duncan Farrah, Andreas Efstathiou, Athena Engholm, Evanthia Hatziminaoglou, Maya Joyce, Vianney Lebouteiller, Sara Petty, L. Kate Pitchford, José Afonso, Dave L. Clements, Mark Lacy, Chris Pearson, Dimitra Rigopoulou, Michael Rowan-Robinson, Lingyu Wang   +15 more
doaj   +1 more source

Optical Versus Mid-Infrared Spectroscopic Classification of Ultraluminous Infrared Galaxies [PDF]

, 1998
The origin of huge infrared luminosities of ultraluminous infrared galaxies (ULIGs) is still in question. Recently, Genzel et al. made mid-infrared (MIR) spectroscopy of a large number of ULIGs and found that the major energy source in them is massive ...
Akira Yoshino, Boksenberg A., Heckman T. M., Johansson L., Johansson L., Johansson L., Lutz D., Lutz D., Maoz D., Moorwood A. F. M., Shingo Nishiura, Terlevich R., Voit G. M., Yoshiaki Taniguchi, Youichi Ohyama, Young S.   +15 more
core   +2 more sources

Starbursts in Ultraluminous Infrared Galaxies — Fueling and Properties [PDF]

, 2001
6 pages, 3 embedded ps figures; uses svmult.cls and physprbb.sty (included); to appear in "Starburst galaxies - near and far", proceedings of the Ringberg workshop, eds. D. Lutz and L.J. Tacconi (to be published by Springer)
openaire   +2 more sources

Star formation in the ultraluminous infrared galaxy F00183-7111 [PDF]

Monthly Notices of the Royal Astronomical Society: Letters, 2014
Abstract We report the detection of molecular CO(1–0) gas in F00183-7111, one of the most extreme ultraluminous infrared galaxies (ULIRGs) known, with the Australia Telescope Compact Array. We measure a redshift of 0.3292 for F00183-7111 from the CO(1–0) line and estimate the mass of the molecular gas in 00183 to be 1 × 1010 M⊙.
Mao, Minnie Y., Norris, Ray P. (R17893), Emonts, Bjorn, Sharp, Rob, Feain, Ilana J., Chow, Kate, Lenc, Emil, Stevens, Jamie B.   +7 more
openaire   +3 more sources

Herschel views on ultra-luminous X-ray sources [PDF]

, 2012
The nature of ultra-luminous X-ray sources (ULXs), which are off-nuclear extragalactic X-ray sources that exceed the Eddington luminosity for a stellar-mass black hole, is still largely unknown.
Chaty, Sylvain, Coleiro, Alexis, Servillat, Mathieu   +2 more
core   +2 more sources

AChandraX‐Ray Survey of Ultraluminous Infrared Galaxies [PDF]

The Astrophysical Journal, 2005
40 pages, 5 tables, 14 figures, accepted by ...
Teng, SH, Wilson, AS, Veilleux, S, Young, AJ, Sanders, DB, Nagar, NM   +5 more
openaire   +3 more sources

Direct Evidence for Active Galactic Nuclei Feedback from Fast Molecular Outflows in Reionization-era Quasars

The Astrophysical Journal
Galactic outflows driven by rapidly accreting quasars at high redshift are widely expected to play a key role in the short- and long-term future evolution of their host galaxies.
Justin S. Spilker, Jaclyn B. Champagne, Xiaohui Fan, Seiji Fujimoto, Paul P. van der Werf, Jinyi Yang, Minghao Yue   +6 more
doaj   +1 more source