Results 121 to 130 of about 5,377 (132)

Luminosity Profiles of Merger Remnants

, 1999
Using published luminosity and molecular gas profiles of the late-stage mergers NGC 3921, NGC 7252 and Arp 220, we examine the expected luminosity profiles of the evolved merger remnants, especially in light of the massive CO complexes that are observed ...
Hibbard, J. E., Yun, Min S.
core  

A Large Molecular Gas Reservoir in the Protocluster SPT2349−56 at z = 4.3

The Astrophysical Journal Letters
We present Atacama Compact Array (ACA) Band-3 observations of the protocluster SPT2349−56, an extreme system hosting >10 ultraluminous infrared galaxies (ULIRGs; L _IR  ≳  10 ^12 L _⊙ ) in a 200 kpc diameter region at z  =  4.3, to study its integrated ...
Dazhi Zhou, Scott C. Chapman, Nikolaus Sulzenauer, Ryley Hill, Manuel Aravena, Pablo Araya-Araya, Jared Cathey, Daniel P. Marrone, Kedar A. Phadke, Cassie Reuter, Manuel Solimano, Justin S. Spilker, Joaquin D. Vieira, David Vizgan, George C. P. Wang, Axel Weiss   +15 more
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Very Long Baseline Interferometry Detection of an Active Radio Source Potentially Driving 100 kpc Scale Emission in the Ultraluminous Infrared Galaxy IRAS F01004–2237

The Astrophysical Journal
The nearby ultraluminous infrared galaxy (ULIRG) IRAS F01004−2237 exhibits 100 kpc scale continuum emission at radio wavelengths. The absence of extended X-ray emission in IRAS F01004−2237 has suggested an active galactic nucleus (AGN) origin for the ...
Takayuki J. Hayashi, Yoshiaki Hagiwara, Masatoshi Imanishi   +2 more
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Far-Infrared Line Deficits in Ultraluminous Infrared Galaxies

Far-Infrared Line Deficits in Ultraluminous Infrared Galaxies
SPICA Science Conference from Exoplanets to Distant Galaxies: SPICA's New Window on the Cool Universe (June 18-21, 2013. Ito Hall, the University of Tokyo), Bunkyou-ku, Tokyo, Japan We study the origin of the [O I] 63, [N II] 122, [O I] 145, and [C II] 158 line deficits in z less than 0.3 Ultraluminous Infrared Galaxies, using data from Herschel.
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Ultraluminous Infrared Galaxies at 1.5

2007
We present measurements of the spatial clustering of ultraluminous infrared galaxies in two redshift intervals, 1.51.
Farrah, D., Lonsdale, C. J., Borys, C., Fang, F., Waddington, I., Oliver, S., Rowan-Robinson, M., Babbedge, T., Shupe, D., Polletta, M., Smith, H. E., Surace, J.   +11 more
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Hot Dust in Ultraluminous Infrared Galaxies

Astrophysics, 2017
Ultraluminous infrared galaxies with total luminosities an order of magnitude greater than that of our galaxy over wavelengths of λλ = 10-800 μm are characterized by a high mass concentration of dust. Because of this, the optical thickness of the interstellar gas is extremely high, especially in the central regions of the galaxies, ranging from 1 at ...
Yu. A. Shchekinov, E. O. Vasiliev
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Ejection from Ultraluminous Infrared Galaxies

2000
Active galaxies, particularly Seyferts, have been shown to eject material in various forms including quasars with high intrinsic redshifts. A class of active galaxy which has so far not been analyzed from this standpoint is the so called Ultra Luminous Infrared Galaxies (ULRIG’s).
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Ultraluminous Infrared Galaxies: Far-Infrared Highlights

Astrophysics and Space Science, 1999
We discuss two significant recent developments in the far-IRwith relevance to the study of Ultraluminous Infrared Galaxies(ULIRGs). The first of these is the discovery of an isotropiccosmological infrared background radiation (CIB). This has beendetected in observations by two different instruments (FIRAS (Puget etal. 1996, Hauser et al.
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Near-Infrared Spectroscopy of Ultraluminous Infrared Galaxies

1994
We report K band spectra of fourteen ultraluminous (LIR ≥ 1012L⊙) galaxies from the IRAS Extended Bright Galaxy Sample (EBGS) and ten less luminous EBGS galaxies. For the lower luminosity systems, good correlations are found between the H2 v=1-0S(1) and far-infrared (FIR) fluxes, and Brγ and FIR fluxes.
J. D. Goldader, R. D. Joseph, D. B. Sanders, R. Doyon   +3 more
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Molecular Gas in Ultraluminous Infrared Galaxies

1997
The discovery of CO emission (Wilson, Jefferts & Penzias 1970) 25 years ago opened a major new astronomical window which has led to important advances in many areas of Galactic and extragalactic astronomy. The strength and ubiquity of the CO lines, CO isotopic lines, and other millimeter transitions have provided extraordinary diagnostics for studying ...
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