Molecular cloud
The role of large scale flows in molecular cloud formation in spiral galaxies
... of molecular clouds in the context of a Milky Way sized ...recovered cloud properties are in good agreement with observed relations and depend on the balance between gravitational instabilities as well as ...
252
The Mass Evolution of Protostellar Disks and Envelopes in the Perseus Molecular Cloud
... The bulk of the analysis in this paper is conducted on data from the SMA, an interferometer comprised of eight 6.1 m antennas located on Mauna Kea in Hawaii. In par- ticular, the 1.3 mm continuum data are derived from ...
12
Cosmic rays as regulators of molecular cloud properties
... Abstract. Cosmic rays are the main agents in controlling the chemical evolution and setting the ambipolar diffusion time of a molecular cloud. We summarise the processes causing the energy degradation of ...
5
ALMA's Polarized View of 10 Protostars in the Perseus Molecular Cloud
... We present 870 µm ALMA dust polarization observations of 10 young Class 0/I protostars in the Perseus Molecular Cloud. At ∼ 0.35 00 (80 au) resolution, all of our sources show some degree of polarization, ...
13
Star Formation in Magnetized, Turbulent and Rotating Molecular Cloud: The Critical Mass
... the cloud through ambipolar diffusion (slow drift of neutral particles across magnetic field lines) and forbidding the infall of matter from the ...star-forming molecular cloud core in different ...
21
Star Formation Efficiencies at Giant Molecular Cloud Scales in the Molecular Disk of the Elliptical Galaxy NGC 5128 (Centaurus A)
... Cold molecular clouds are the sites of star formation (SF) in galaxies and their relation under various galactic environments is essential to understand galaxy ...and molecular gas content (Schmidt 1959; ...
20
A Bubbling Nearby Molecular Cloud: Complete Shells in Perseus
... of molecular gas associated with the shells can be used to constrain the geometry of the ex- panding bubble and to some extent the thickness of the host cloud (Beaumont & Williams ...the cloud; ...
49
The Survey of Water and Ammonia in the Galactic Center (SWAG): Molecular Cloud Evolution in the Central Molecular Zone
... when cloud collapse was ...initial cloud proper- ties, this remains speculation, and we can only state that the observed sequences can be the result of tidally triggered collapse assuming a scatter of ...
42
Analysis of Galactic molecular cloud polarization maps: a review of the methods
... approach has been tested by simulations (e.g. [23]). In their study [26] first produce a com- ponent separation analysis of the magnetic fields in the diffuse ISM and in higher column density regions, and use image ...
6
A giant molecular cloud falling through the heart of Cygnus A: clues to the triggering of the activity
... the cloud should be photoionized on its AGN-facing side regardless of the origin of the ...the molecular emission? An intrigu- ing possibility is that the cloud may be in the foreground outside the ...
9
The James Clerk Maxwell telescope Legacy Survey of the Gould Belt: a molecular line study of the Ophiuchus molecular cloud
... Similarly, high-velocity gas was also seen towards GY 91 and WL 2, although whether these particular objects are the driving force of an outflow is not clear. These sources are located in the south of Oph A near the ...
25
Ultra high resolution observations of CH in southern molecular cloud envelopes
... lends itself well to this particular study as: (i) the distances to the CH-bearing clouds and to the background stars are well known; (ii) the kinematic profiles, and hence the line-of-sight gas distributions, are simple ...
12
The Formation and Dynamical Evolution of Young Star Clusters
... turbulent molecular cloud that collapses under its own ...collapsing cloud after an initial free-fall time of the molecular ...The molecular clouds typical of the Milky Way Galaxy tend ...
14
Physical models of photon-dominated regions: inuence of clumpiness and geometry for S140
... extended cloud model, whereas the size of a clump is chosen such that the clump has the same visual extinc- ...the molecular cloud cannot be reproduced by any model, even if F is as low as ...
10
Discovery of Interstellar Anions in Cepheus and Auriga
... quiescent molecular clouds TMC-1 (McCarthy et ...of molecular material in interstel- lar clouds might be in the form of anions was first suggested by Sarre (1980) and Herbst (1981), who pointed out that ...
5
Ultra high resolution observations of interstellar Na I and Ca II toward the high galactic latitude star HD 28497
... 4. One of the purposes in studying HD 28497 was to use the star as a background probe of gas directly associated with the high galactic latitude molecular cloud MBM 20. However, we have not found evidence ...
11
The Influence of Dense Gas Rings on the Dynamics of a Stellar Disk in the Galactic Center
... The SMBH and the young stars are embedded into the cusp of the nuclear star cluster, which has a nearly spherical density pro fi le ( Genzel et al. 2003; Schödel et al. 2007 ) and is a source of mass precession and ...
9
The JCMT Gould Belt Survey: first results from SCUBA-2 observations of the Cepheus Flare region
... Cepheus molecular cloud, and so require an approximate size and mass estimate for each core, which can be usefully provided by a Gaussian fit to the ...
27
Outflows in High Mass Star Forming Regions
... Two glaring and intriguing problems remain to be solved in this field: the origin of the supersonic turbulence observed throughout a molecular cloud, and the driving mechanism of the pow[r] ...
178
Large-scale virtual screening on public cloud resources with Apache Spark
... targets. Typically, a docking-based SBVS workflow starts from a virtual molecular library and a target receptor structure. First, a preliminary preprocessing step, which is subject to the application scope, is ...
6