Results 51 to 60 of about 35,842 (270)

A Spitzer study of interacting luminous and ultra-luminous infrared galaxies [PDF]

open access: yesProceedings of the International Astronomical Union, 2011
AbstractWe conducted a Spitzer Space Telescope survey of 28 Luminous (11 < log (LIR/L⊙) < 12, LIRGs) and Ultra-Luminous Infrared Galaxies (log (LIR/L⊙) > 12, ULIRGs). Many of these galaxies are found in pairs or associations and are powered by either nuclear activity or star-formation (Sanders & Mirabel 1996).
Claus Leitherer, João R.S. Leão
openaire   +3 more sources

Fading AGNs in Poststarburst Galaxies

open access: yesThe Astrophysical Journal, 2023
The role of active galactic nuclei (AGNs) in quenching galaxies and driving the evolution from star forming to quiescence remains a key question in galaxy evolution.
K. Decker French   +6 more
doaj   +1 more source

The Role of AGN in Luminous Infrared Galaxies from the Multiwavelength Perspective

open access: yesUniverse, 2022
Galaxy mergers provide a mechanism for galaxies to effectively funnel gas and materials toward their nuclei and fuel the central starbursts and accretion of supermassive black holes.
Vivian U
doaj   +1 more source

Luminous and Obscured Quasars and Their Host Galaxies

open access: yesFrontiers in Astronomy and Space Sciences, 2018
The most heavily-obscured, luminous quasars might represent a specific phase of the evolution of the actively accreting supermassive black holes and their host galaxies, possibly related to mergers.
Agnese Del Moro   +9 more
doaj   +1 more source

Spitzer Mid-Infrared Spectroscopy of 70um-Selected Distant Luminous Infrared Galaxies [PDF]

open access: yes, 2007
We present mid-infrared spectroscopy obtained with the Spitzer Space Telescope of a sample of 11 optically faint, infrared luminous galaxies selected from a Spitzer MIPS 70um imaging survey of the NDWFS Bootes field.
Arjun Dey   +11 more
core   +2 more sources

The Interaction between AGN and Starburst Activity in the Circumnuclear Region of NGC 7469 as Viewed with JWST

open access: yesThe Astrophysical Journal Letters, 2023
We combine mid-infrared diagnostics obtained from integral-field-unit observations taken with Mid-Infrared Instrument/Medium Resolution Spectrograph on the James Webb Space Telescope with cold molecular gas information derived from Atacama Large ...
Lulu Zhang, Luis C. Ho
doaj   +1 more source

The stellar, molecular gas and dust content of the host galaxies of two z~2.8 dust obscured quasars [PDF]

open access: yes, 2011
We present optical through radio observations of the host galaxies of two dust obscured, luminous quasars selected in the mid-infrared, at z=2.62 and z=2.99, including a search for CO emission.
Farrah, Duncan   +6 more
core   +3 more sources

Mid-Infrared Spectral Diagnostics of Luminous Infrared Galaxies [PDF]

open access: yesAIP Conference Proceedings, 2010
We present a statistical analysis of 248 luminous infrared galaxies (LIRGs) which comprise the Great Observatories All‐sky LIRG Survey (GOALS) observed with the Infrared Spectrograph (IRS) on‐board Spitzer in the rest‐frame wavelength range between 5 and 38 μm.
A. Petric   +2 more
openaire   +4 more sources

GOALS-JWST: NIRCam and MIRI Imaging of the Circumnuclear Starburst Ring in NGC 7469

open access: yesThe Astrophysical Journal Letters, 2023
We present James Webb Space Telescope (JWST) imaging of NGC 7469 with the Near-Infrared Camera and the Mid-InfraRed Instrument. NGC 7469 is a nearby, z = 0.01627, luminous infrared galaxy that hosts both a Seyfert Type-1.5 nucleus and a circumnuclear ...
Thomas Bohn   +32 more
doaj   +1 more source

Quasars and Ultraluminous Infrared Galaxies: At the Limit? [PDF]

open access: yes, 1998
We have detected the host galaxies of 16 nearby, radio-quiet quasars using images obtained with the Near-Infrared Camera and Multi-Object Spectrometer (NICMOS).
Cristiani S.   +9 more
core   +3 more sources

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