Results 81 to 90 of about 833,501 (156)
Far-infrared Emission Lines as Metallicity Diagnostic
The Astrophysical JournalThe chemical abundance of the interstellar medium is a key tracer of galaxy evolution. Optical and ultraviolet emission lines are widely used to derive gas-phase metallicities, but suffer from uncertainties due to possible temperature fluctuations and ...
Elizabeth Fletcher +3 more
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High Resolution Mid-Infrared Imaging of Ultraluminous Infrared Galaxies [PDF]
, 2000 Observations of ultraluminous infrared galaxies (ULIRGs) with an achieved resolution approaching the diffraction limit in the mid-infrared from 8 to 25 μm using the Keck Telescopes are reported.
Becklin, E. E. +11 more
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NICMOS observations of luminous & ultraluminous infrared galaxies [PDF]
, 1999 HST NICMOS observations of a sample of 24 luminous (LIGs: L_(IR)[8-1000 μm] = 10^(11.0-11.99) L_⊙) and ultraluminous (ULIGs:L_(IR) ≳ 10^(12.0) L_⊙) infrared galaxies are presented.The observations provide, for the first time, high resolution HST imaging ...
Evans, Aaron S.
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The Astrophysical JournalUltrafast outflows (UFOs) are thought to be a driving mechanism of large-scale winds driven by active galactic nuclei (AGN), which cause significant galactic feedback through quenching star formation and regulating supermassive black hole growth.
Jerome Seebeck +11 more
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A Complete 16 μm Selected Galaxy Sample at z ∼ 1. II. Morphological Analysis
The Astrophysical JournalWe present a morphological analysis of the 16 μ m flux-density-limited galaxy sample at 0.8 < z < 1.3 from Huang et al. (2021). At the targeted redshift, the 16 μ m emission corresponds to the polycyclic aromatic hydrocarbon feature from intense star ...
Piaoran Liang +4 more
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Luminous Buried AGNs in Ultraluminous Infrared Galaxies and the Origin of Galaxy Downsizing
, 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
The Astrophysical JournalWe present new James Webb Space Telescope (JWST) Mid-Infrared Instrument Medium-Resolution Spectrometer observations of the nearby ultraluminous infrared galaxy (ULIRG) F08572+3915 NW. These integral field spectroscopic (IFS) data reveal a kpc-scale warm-
Kylie Yui Dan +11 more
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The Astrophysical JournalWe present detailed spectral energy distribution (SED) modeling of 14 local ultraluminous infrared galaxies (ULIRGs) with outstanding photometric data from the literature covering the ultraviolet–infrared (FIR) and radio bands (∼50 MHz to ∼30 GHz).
Subhrata Dey +3 more
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The nature and origin of disky elliptical galaxies [PDF]
, 2002 The observational trend that disky elliptical galaxies exhibit younger luminosity- weighted ages than boxy ellipticals is investigated. The presence of a possible young stellar disk embedded in these galaxies is explored by comparing kinematics derived ...
McDermid, Richard Morgan
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A Comparative Study of Ultraluminous Infrared Galaxies in the IRAS and SDSS Surveys
The Astrophysical Journal Supplement SeriesWe present a comprehensive study of ultraluminous infrared galaxies (ULIRGs), leveraging data from the Infrared Astronomical Satellite Faint Source Catalogue and the spectroscopic catalog in the Sloan Digital Sky Survey Data Release 16.
Shaohua Zhang +5 more
doaj +1 more source