Results 31 to 40 of about 5,377 (132)
Ultraluminous Infrared Galaxies: Mergers of Sub‐L* Galaxies? [PDF]
The 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 ...
Colina, Luis +8 more
openaire +1 more source
Star Formation History of Dwarf Galaxies in Cosmological Hydrodynamic Simulations
Advances in Astronomy, Volume 2010, Issue 1, 2010., 2010 We examine the past and current work on the star formation (SF) histories of dwarf galaxies in cosmological hydrodynamic simulations. The results obtained from different numerical methods are still somewhat mixed, but the differences are understandable if we consider the numerical and resolution effects.
Kentaro Nagamine, Andrey V. Kravtsov
wiley +1 more source
The Astrophysical Journal, 2023 We use archival ALMA observations of the HCN and CO J = 1–0 transitions, in addition to the radio continuum at 93 GHz, to assess the relation between dense gas, star formation, and gas dynamics in 10 nearby (ultra)luminous IR galaxies (U)LIRGs and late ...
Ashley R. Bemis, Christine D. Wilson
doaj +1 more source
Anti-correlation between the mass of a supermassive black hole and the mass accretion rate in type I ultraluminous infrared galaxies and nearby QSOs [PDF]
, 2007 We discovered a significant anti-correlation between the mass of a supermassive black hole (SMBH), $M_{\rm BH}$, and the luminosity ratio of infrared to active galactic nuclei (AGN) Eddington luminosity, $L_{\rm IR}/L_{\rm Edd}$, over four orders of ...
Begelman M. C. +15 more
core +2 more sources
The Astrophysical Journal, 2023 We present a multiwavelength analysis using the Submillimeter Array (SMA), James Clerk Maxwell Telescope, NOEMA, JWST, the Hubble Space Telescope (HST), and the Spitzer Space Telescope of two dusty strongly star-forming galaxies, 850.1 and 850.2, seen ...
Ian Smail +34 more
doaj +1 more source
Evidence for a Molecular Cloud Origin for Gamma-Ray Bursts: Implications for the Nature of Star Formation in the Universe [PDF]
, 2001 It appears that the majority of rapidly-, well-localized gamma-ray bursts with undetected, or dark, optical afterglows, or `dark bursts' for short, occur in clouds of size R > 10L_{49}^{1/2} pc and mass M > 3x10^5L_{49} M_{sun}, where L is the isotropic ...
Dal Fiume D. +7 more
core +2 more sources
ISO Spectroscopy of Ultraluminous Infrared Galaxies
Astrophysics and Space Science, 1999 Spectroscopy from the Infrared Space Observatory ISO has for the first timeprovided the sensitivity to exploit the diagnostic power ofmid-infrared fine structure lines and PAH features for the study ofultraluminous infrared galaxies (LIR >1012 L ⊙). We report on observations obtainedwith SWS, ISOPHOT-S, and the CVF option of ISOCAM.
Lutz, D +7 more
openaire +1 more source
The Nature of Ultraluminous Infrared Galaxies [PDF]
Symposium - International Astronomical Union, 2001 The Infrared Space Observatory (ISO) has for the first time made possible mid- and far-infrared spectroscopic studies of nearby and moderate redshift, dusty ultraluminous infrared galaxies (ULIRGs). We discuss recent SWS, LWS, ISOPHOT-S and ISOCAM (CVF) results on ULIRGs, addressing the following topics: What powers ULIRGs?
openaire +1 more source
The Astrophysical Journal, 2023 We report the results of Atacama Large Millimeter/submillimeter Array (ALMA) 1–2 kpc resolution, three rotational transition-line ( J = 2–1, J = 3–2, and J = 4–3) observations of multiple dense molecular gas tracers (HCN, HCO ^+ , and HNC) for 10 nearby (
Masatoshi Imanishi +3 more
doaj +1 more source
The Environment of Local Ultraluminous Infrared Galaxies [PDF]
The Astrophysical Journal, 2007 31 pages, 9 figures, 2 tables, accepted for publication in ApJ, volume 660n1 (May 1, 2007)
Zauderer, B. A. +2 more
openaire +2 more sources