Results 261 to 270 of about 1,574,380 (286)
DUST CONTINUUM EMISSION AS A TRACER OF GAS MASS IN GALAXIES [PDF]
Astrophysical Journal, 2015 We use a sample of 36 galaxies from the KINGFISH (Herschel IR), HERACLES (IRAM CO), and THINGS (VLA HI) surveys to study empirical relations between Herschel infrared (IR) luminosities and the total mass of the interstellar gas (H2+HI). Such a comparison provides a simple empirical relationship without introducing the uncertainty of dust model fitting.
Leslie K. Hunt +2 more
exaly +4 more sources
Astrophysical Journal, 2020 Abstract We compare the extent of the dust, molecular gas, and stars in three star-forming galaxies, at z = 1.4, 1.6, and 2.7, selected from the Hubble Ultra Deep Field based on their bright carbon monoxide (CO) and dust-continuum emission as well as their large rest-frame optical sizes. The galaxies have high stellar masses,
Paul van der Werf +2 more
exaly +8 more sources
Kiloparsec-scale ALMA Imaging of [C ii] and Dust Continuum Emission of 27 Quasar Host Galaxies at z ∼ 6 [PDF]
Astrophysical Journal, 2020 Abstract We present a study of the [C ii] 158 μm line and underlying far-infrared (FIR) continuum emission of 27 quasar host galaxies at z ∼ 6, traced by the Atacama Large Millimeter/submillimeter Array at a spatial resolution of ∼1 physical kpc. The [C ii] emission in the bright, central regions of the quasars have sizes of 1.0–4.8 kpc.
Christopher Carilli +2 more
exaly +5 more sources
Astrophysical Journal, 2022 Abstract We present new Atacama Large Millimeter/submillimeter Array (ALMA) results obtained from spatially resolved CO J = 2–1 line (0.″4 resolution) and 870 μm continuum (0.″2 resolution) observations of cluster galaxies in XMMXCS J2215.9-1738 at z = 1.46. Our sample comprises 17 galaxies within ∼0.5 Mpc (0.6R 200) of
Chi Chung Chan +2 more
exaly +3 more sources
High-Mass Protostellar Candidates. II. Density Structure from Dust Continuum and CS Emission [PDF]
Astrophysical Journal, 2002 15 pages, 13 jpeg-figures.
Beuther, H. +5 more
exaly +3 more sources
ALMA Observation of NGC 5135: The Circumnuclear CO (6–5) and Dust Continuum Emission at 45 pc Resolution* [PDF]
Astrophysical Journal, 2018 Abstract We present high-resolution (0.″17 × 0.″14) Atacama Large Millimeter/submillimeter Array (ALMA) observations of the CO (6–5) line and 435 μm dust continuum emission within a ∼9″ × 9″ area centered on the nucleus of the galaxy NGC 5135.
Paul van der Werf, Tianwen Cao, Cong Xu
exaly +5 more sources
Bolocam Survey for 1.1 mm Dust Continuum Emission in the c2d Legacy Clouds. I. Perseus [PDF]
Astrophysical Journal, 2006 We have completed a 1.1 mm continuum survey of 7.5 sq deg of the Perseus Molecular Cloud using Bolocam at the Caltech Submillimeter Observatory. This represents the largest millimeter or submillimeter continuum map of Perseus to date. Our map covers more than 30,000 31" (FWHM) resolution elements to a 1 sigma RMS of 15 mJy/beam.
Neal J. Evans +2 more
exaly +3 more sources
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Journal of Experimental and Theoretical Physics, 2008
The continuum approximation is used to analyze the effect of electron emission from the surface of a spherical dust grain immersed in a plasma on the grain charge by assuming negligible ionization and recombination in the disturbed plasma region around the grain.
D'yachkov, L., Khrapak, A., Khrapak, S.
openaire +2 more sources
The continuum approximation is used to analyze the effect of electron emission from the surface of a spherical dust grain immersed in a plasma on the grain charge by assuming negligible ionization and recombination in the disturbed plasma region around the grain.
D'yachkov, L., Khrapak, A., Khrapak, S.
openaire +2 more sources
Submillimeter Dust Continuum Emission as a Probe of Protostellar Evolution
1996The strength and spatial distribution of the (sub)millimeter continuum emission from young stellar objects (YSOs) are powerful diagnostics of the progressive decrease and condensation of circumstellar mass during protostellar evolution. In particular, the ratio of submm to bolometric luminosity may be used as a practical evolutionary indicator for ...
Philippe André, Sylvain Bontemps
openaire +1 more source
Millimeter Dust Continuum Emission as a Tracer of Molecular Gas in Galaxies
2008Molecular gas in galaxies is the primary fuel of star formation but the exact amount of molecular gas remains unknown since H_2 is not observed directly in cold interstellar regions. CO observations have been so far the best way to trace molecular gas in external galaxies, but in low metallicity environments the gas mass deduced could be largely ...
Bot, Caroline +3 more
openaire +2 more sources