Results 51 to 60 of about 689 (170)

J0107a: A Barred Spiral Dusty Star-forming Galaxy at z = 2.467

open access: yesThe Astrophysical Journal Letters, 2023
Dusty star-forming galaxies (DSFGs) are among the most massive and active star-forming galaxies during the cosmic noon. Theoretical studies have proposed various formation mechanisms of DSFGs, including major merger-driven starbursts and secular star ...
Shuo Huang   +9 more
doaj   +1 more source

Low Accretion Rates in Black Holes in Late-stage Merger Ultraluminous Infrared Galaxies

open access: yesThe Astrophysical Journal
We explore the accretion rates of supermassive black holes (SMBHs) in late-stage galaxy mergers by observing three ultraluminous infrared galaxies (ULIRGs), IRAS 14378-3651, IRAS 17208-0014 and IRAS 23365+3604, using the JWST/MIRI Medium Resolution ...
George H. Rieke   +13 more
doaj   +1 more source

CO Survey of High-z Radio Galaxies, Revisited with the Atacama Large Millimeter/submillimeter Array: Jet–Cloud Alignments and Synchrotron Brightening by Molecular Gas in the Circumgalactic Environment

open access: yesThe Astrophysical Journal, 2023
Powerful radio sources associated with supermassive black holes are among the most luminous objects in the universe, and are frequently recognized both as cosmological probes and active constituents in the evolution of galaxies.
Bjorn H. C. Emonts   +8 more
doaj   +1 more source

Luminous Buried AGNs in Ultraluminous Infrared Galaxies and the Origin of Galaxy Downsizing

open access: yes, 2009
We present the results of our systematic infrared 2.5– 35 μm low-resolution spectroscopy of nearby ultraluminous infrared galaxies (ULIRGs) at z 1, when both star-formation and AGN activity show ...
M. Imanishi
core   +1 more source

Core Revelations: The Star Formation and Active Galactic Nucleus Connection at the Heart of NGC 7469

open access: yesThe Astrophysical Journal
We investigate the star formation–active galactic nucleus (AGN) connection in the Seyfert 1 NGC 7469 using James Webb Space Telescope mid-infrared spectroscopic integral field unit (IFU) data.
Léa M. Feuillet   +6 more
doaj   +1 more source

Graph Theoretical Analysis of local ultraluminous infrared galaxies and quasars

open access: yes, 2023
We present a methodological framework for studying galaxy evolution by utilizing Graph Theory and network analysis tools. We study the evolutionary processes of local ultraluminous infrared galaxies (ULIRGs) and quasars and the underlying physical ...
Pavlou, Orestis   +5 more
core   +2 more sources

Spitzer Mid-Infrared Imaging of Nearby Ultraluminous Infrared Galaxies [PDF]

open access: yes, 2006
We have observed 14 nearby (z < 0.16) Ultraluminous Infrared Galaxies (ULIRGs) with Spitzer at 3.6-24μm. The underlying host galaxies are well-detected, in addition to the luminous nuclear cores. While the spatial resolution of Spitzer is poor, the great
Forrest, W.   +6 more
core  

Infrared emission from z ∼ 6.5 quasar host galaxies: a direct estimate of dust physical properties

open access: yesAstronomy & Astrophysics
Quasars at the dawn of cosmic time (z > 6) are fundamental probes for investigating the early coevolution of supermassive black holes and their host galaxy.
Costa M.   +8 more
doaj   +1 more source

Spectropolarimetry of the ultraluminous infrared galaxy IRAS 110548–1131 [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1993
Copyright Royal Astronomical Society [Full text of this article is not available in the UHRA]
S. Young   +4 more
openaire   +1 more source

A JWST MIRI LRS Survey of 37 Massive Star-forming Galaxies and Active Galactic Nuclei at Cosmic Noon: Overview and First Results

open access: yesThe Astrophysical Journal
We present a large spectroscopic survey with JWST’s Mid-Infrared Instrument Low Resolution Spectrometer (LRS) targeting 37 infrared-bright galaxies between z  = 0.65–2.46 with infrared luminosities $\mathrm{log}{L}_{{\rm{IR}}}/{L}_{\odot }\gt 11.5$ and $\
Jed McKinney   +19 more
doaj   +1 more source

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