Results 11 to 20 of about 4,624,977 (307)

The Molecular Cloud Lifecycle. [PDF]

open access: yesSpace Sci Rev, 2020
Abstract Giant molecular clouds (GMCs) and their stellar offspring are the building blocks of galaxies. The physical characteristics of GMCs and their evolution are tightly connected to galaxy evolution. The macroscopic properties of the interstellar medium propagate into the properties of GMCs condensing out of it, with correlations ...
Chevance M   +8 more
europepmc   +5 more sources

Cloud business models and sustainability: impacts for businesses and e-research [PDF]

open access: yes, 2010
This paper reviews current cloud computing business models and presents proposals on how organisations can achieve sustainability by adopting appropriate models.
De Roure, David   +5 more
core   +5 more sources

THE CALIFORNIA MOLECULAR CLOUD [PDF]

open access: yesThe Astrophysical Journal, 2009
Accepted for publication in the ApJ. This submission has low resolution figures. Preprint with full resolution figures can be found at http://www.cfa.harvard.edu/~clada/pubs_html/California ...
C. J. Lada, M. Lombardi, J. F. Alves
openaire   +2 more sources

Turbulence in Molecular Clouds [PDF]

open access: yesThe Astrophysical Journal, 1995
accepted in ApJ, compressed postscript, figures not included. Complete preprint available at http://ucowww.ucsc.edu/~dubinski/home.html or by request to dubinski@lick.ucsc ...
Dubinski, John   +2 more
openaire   +2 more sources

The formation of molecular clouds [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2001
In a recent paper, Elmegreen (2000) has made a cogent case, from an observational point of view, that the lifetimes of molecular clouds are comparable to their dynamical timescales. If so, this has important implications for the mechanisms by which molecular clouds form.
Pringle, J. E.   +2 more
openaire   +2 more sources

Fragmentation in molecular clouds [PDF]

open access: yesSymposium - International Astronomical Union, 1991
B209. Fragments are detected in the outer parts of the B209 molecular cloud in a region of density 1000 cm −3 using 12 CO, 13 CO, H 2 CO, IRAS 60 and 100
Frank O. Clark   +2 more
openaire   +1 more source

Molecular line signatures of cloud–cloud collisions [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2021
ABSTRACT Collisions between interstellar gas clouds are potentially an important mechanism for triggering star formation. This is because they are able to rapidly generate large masses of dense gas. Observationally, cloud collisions are often identified in position–velocity (PV) space through bridging features between intensity peaks ...
Priestley, F. D., Whitworth, A. P.
openaire   +3 more sources

Molecular Abundances in the Sgr a Molecular Cloud [PDF]

open access: yesSymposium - International Astronomical Union, 1992
We have obtained column densities for HCO+, HCO, HCS+, C3H2, HC5N, SiO, OCS, HCOOH, CH3CH2 OH, and CH3CCH toward Sgr A. The fractional abundance of SiO relative to molecular hydrogen in Sgr A is comparable to that for the Orion plateau, ~ 10−7 − 10−8, which may be a typical value for hot clouds.
Y. C. Minh, W. M. Irvine, P. Friberg
openaire   +1 more source

Cloud benchmarking for performance [PDF]

open access: yes, 2014
How can applications be deployed on the cloud to achieve maximum performance? This question has become significant and challenging with the availability of a wide variety of Virtual Machines (VMs) with different performance capabilities in the cloud. The
Ozgur Akgun   +12 more
core   +1 more source

Multi-line characterization of whole molecular clouds using stratified random sampling [PDF]

open access: yesEPJ Web of Conferences, 2022
We have developed a new technique to characterize the multi-line emission from molecular clouds using statistical sampling. Our method uses available extinction maps to select a relatively small sample of cloud positions that cover the full range of ...
Tafalla Mario   +2 more
doaj   +1 more source

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