Results 41 to 50 of about 3,493 (285)

Dark Supernova Remnants Revealed by CO-Line Bubbles in the W43 Molecular Complex along the 4-kpc Galactic Arm

open access: yesGalaxies, 2021
Fine structure of the density distribution in giant molecular clouds (GMCs) around W43 (G31+00+90 km s−1at ∼5.5 kpc) was analyzed using the FUGIN* CO-line survey at high-angular (20”∼0.5 pc) and velocity (1.3 km s−1) resolutions (*Four-receiver-system ...
Yoshiaki Sofue
doaj   +1 more source

The infrared Galactic disk: What have we learned?

open access: yesEPJ Web of Conferences, 2012
A brief overview is given of some of the new insights we have achieved from the Spitzer/GLIMPSE/MIPSGAL surveys of the Galactic plane. Particular emphasis is given to infrared bubbles, rapidly accreting protostars, infrared dark clouds, and diffuse PAH ...
Churchwell E.
doaj   +1 more source

The ALMA Survey of 70 μm Dark High-mass Clumps in Early Stages (ASHES). IX. Physical Properties and Spatial Distribution of Cores in IRDCs

open access: yesThe Astrophysical Journal, 2023
The initial conditions found in infrared dark clouds (IRDCs) provide insights on how high-mass stars and stellar clusters form. We have conducted high-angular resolution and high-sensitivity observations toward thirty-nine massive IRDC clumps, which have
Kaho Morii   +15 more
doaj   +1 more source

Magnetic Fields in the Infrared Dark Cloud G34.43+0.24 [PDF]

open access: yesThe Astrophysical Journal, 2019
Abstract We present the B-fields mapped in IRDC G34.43+0.24 using 850 μm polarized dust emission observed with the POL-2 instrument at the James Clerk Maxwell telescope. We examine the magnetic field geometries and strengths in the northern, central, and southern regions of the filament.
Archana Soam   +42 more
openaire   +6 more sources

INITIAL FRAGMENTATION IN THE INFRARED DARK CLOUD G28.53−0.25 [PDF]

open access: yesThe Astrophysical Journal, 2015
20 pages, 10 figures, 6 tables, ApJ ...
Xing Lu   +3 more
openaire   +2 more sources

Denoising Diffusion Probabilistic Models to Predict the Density of Molecular Clouds

open access: yesThe Astrophysical Journal, 2023
We introduce the state-of-the-art deep-learning denoising diffusion probabilistic model as a method to infer the volume or number density of giant molecular clouds (GMCs) from projected mass surface density maps.
Duo Xu   +3 more
doaj   +1 more source

Multicomponent Kinematics in a Massive Filamentary Infrared Dark Cloud [PDF]

open access: yesThe Astrophysical Journal, 2019
Abstract To probe the initial conditions for high-mass star and cluster formation, we investigate the properties of dense filaments within the infrared dark cloud (IRDC) G035.39–00.33 (G035.39) in a combined Very Large Array and Green Bank Telescope mosaic tracing the NH3 (1, 1) and (2, 2) emission down to 0.08 pc scales.
Vlas Sokolov   +8 more
openaire   +4 more sources

Star formation in infrared dark clouds: Self-gravity and dynamics

open access: yes, 2016
The role played by gravity in the transfer of interstellar matter from molecular cloud scales to protostellar scales is still highly debated. Only detailed studies on the kinematics of large samples of star-forming clouds will settle the issue.
N. Peretto   +5 more
core   +1 more source

Infrared dark cloud cores in the SCUBA Legacy Catalogue [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2009
18 pages, 3 tables, 10 ...
Parsons, H.   +2 more
openaire   +2 more sources

Direct Observational Evidence of the Multi-scale, Dynamical Mass Accretion Toward a High-mass Star-forming Hub-filament System

open access: yesThe Astrophysical Journal, 2023
There is growing evidence that high-mass star formation and hub-filament systems (HFS) are intricately linked. The gas kinematics along the filaments and the forming high-mass star(s) in the central hub are in excellent agreement with the new generation ...
Dongting Yang   +30 more
doaj   +1 more source

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