Results 111 to 120 of about 238,168 (251)

Giant Molecular Clouds are More Concentrated to Spiral Arms than Smaller Clouds

, 2005
From our catalog of Milky Way molecular clouds, created using a temperature thresholding algorithm on the Bell Laboratories 13CO Survey, we have extracted two subsets:(1) Giant Molecular Clouds (GMCs), clouds that are definitely larger than 10^5 solar ...
Antony A. Stark, Burton W. B., Lindblad P. O., Liszt H. S., Reifenstein E. C., Shane W. W., Simonson S. C., Youngung Lee   +7 more
core   +1 more source

Star formation in evolving molecular clouds

, 2017
Molecular clouds are the principle stellar nurseries of our universe, keeping them in the focus of both observational and theoretical studies. From observations, some of the key properties of molecular clouds are well known but many questions regarding ...
Banerjee, R., Körtgen, B., Völschow, M.   +2 more
core   +1 more source

Turbulent Pressure Heats Gas and Suppresses Star Formation in Galactic Bar Molecular Clouds

The Astrophysical Journal
The Central Molecular Zone (CMZ) of the Milky Way is fed by gas inflows from the Galactic disk along almost radial trajectories aligned with the major axis of the Galactic bar.
Andy Nilipour, Juergen Ott, David S. Meier, Brian Svoboda, Mattia C. Sormani, Adam Ginsburg, Savannah R. Gramze, Natalie O. Butterfield, Ralf S. Klessen   +8 more
doaj   +1 more source

Hierarchical structure of the interstellar molecular clouds and star formation

Open Astronomy, 2017
Properties of the hierarchical structures of interstellar molecular clouds are discussed. Particular attention is paid to the statistical correlations between velocity dispersion and size, and between the magnetic field strength and gas density.
Dudorov Alexander E., Khaibrakhmanov Sergey A.   +1 more
doaj   +1 more source

CO observations of spiral structure and the lifetime of giant molecular clouds [PDF]

, 1979
N. Z. Scoville, P. M. Solomon, D. B. Sanders   +2 more
openalex   +1 more source

Velocity Structure and Molecular Formation in the Polaris Molecular Cloud

The Astrophysical Journal
We present a wide-field $(60^{\prime} \times 30^{\prime} )$ study of a dense region within the Polaris Flare using ^12 CO, ^13 CO, and C ^18 O ( J  = 1–0) observations at 15″ resolution, obtained with the Nobeyama 45 m Radio Telescope.
Tomomi Shimoikura, Kazuhito Dobashi, Fumitaka Nakamura, Kotomi Taniguchi   +3 more
doaj   +1 more source

Jets in Molecular Clouds [PDF]

Symposium - International Astronomical Union, 1984
There is now growing evidence that the cosmic jet phenomenon manifests itself in a remarkable way in regions of active star formation embedded in dense molecular clouds. The first indications for oppositely directed, supersonic outflows from young stars were provided by molecular line observations (most notably of CO) which detected spatially separated
openaire   +1 more source

Two-Fluid MHD Simulations of Converging HI Flows in the Interstellar Medium. I: Methodology and Basic Results

, 2008
We develop an unconditionally stable numerical method for solving the coupling between two fluids (frictional forces/heatings, ionization, and recombination), and investigate the dynamical condensation process of thermally unstable gas that is provided ...
Draine B. T., Hennebelle P., Hennebelle P., Shu‐ichiro Inutsuka, Tsuyoshi Inoue, van Leer B.   +5 more
core   +1 more source

Multiple collisions in N59 bubble: Sequential cloud-cloud collisions [PDF]

arXiv
We report that the gas components in the N59 bubble suffered from sequential multiple cloud-cloud collision (CCC) processes. The molecular gas in the N59 bubble can be decomposed into four velocity components, namely Cloud A [95, 108] km s$^{-1}$, Cloud B [86, 95] km s$^{-1}$, Cloud C [79, 86] km s$^{-1}$ and Cloud D [65, 79] km s$^{-1}$.
arxiv  

Detection of submillimeter /870-micron/ CO emission from the Orion molecular cloud [PDF]

, 1977
T. G. Phillips, G. Neugebauer, M. W. Werner, P. J. Huggins   +3 more
openalex   +1 more source