Results 81 to 90 of about 4,653,928 (371)

The Earliest Phases of Star Formation (EPoS): a Herschel key project - The thermal structure of low-mass molecular cloud cores [PDF]

open access: yes, 2013
Context. The temperature and density structure of molecular cloud cores are the most important physical quantities that determine the course of the protostellar collapse and the properties of the stars they form. Nevertheless, density profiles often rely
R. Launhardt   +27 more
semanticscholar   +1 more source

Giant Molecular Clouds in M31. I. Molecular Cloud Properties [PDF]

open access: yesThe Astrophysical Journal, 2007
We present Berkeley Illinois Maryland Association (BIMA) millimeter interferometer observations of giant molecular clouds (GMCs) along a spiral arm in M31. The observations consist of a survey using the compact configuration of the interferometer and follow-up, higher-resolution observations on a subset of the detections in the survey.
openaire   +3 more sources

Discovery Of A Molecular Outflow in the Haro 6-10 Star-Forming Region [PDF]

open access: yes, 2007
We present high sensitivity 12CO and 13CO (1-0) molecular line maps covering the full extent of the parsec scale Haro~6-10 Herbig-Haro (HH) flow. We report the discovery of a molecular CO outflow along the axis of parsec-scale HH flow. Previous molecular
Bachiller R.   +5 more
core   +3 more sources

Possibilities for Methanogenic and Acetogenic Life in Molecular Clouds

open access: yesLife
According to panspermia, life on Earth may have originated from life forms transported through space from elsewhere. These life forms could have passed through molecular clouds, where the process of methanogenesis could have provided enough energy to ...
Lei Feng
doaj   +1 more source

QUANTIFYING OBSERVATIONAL PROJECTION EFFECTS USING MOLECULAR CLOUD SIMULATIONS [PDF]

open access: yes, 2013
The physical properties of molecular clouds are often measured using spectral-line observations, which provide the only probes of the clouds' velocity structure.
Christopher Beaumont   +4 more
semanticscholar   +1 more source

The energetics of molecular clouds. II - The S140 molecular cloud

open access: yesThe Astrophysical Journal, 1978
Techniques of analysis which allow estimates of kinetic temperature, gas density, gas cooling rate, and dust cooling rate are applied to the S140 molecular cloud. Maps of this cloud in various molecular lines are examined which reveal the existence of a strong temperature and density peak near the H-alpha rim and the presence of a strong near-IR source
William L. Peters   +3 more
openaire   +2 more sources

Insights on molecular cloud structure [PDF]

open access: yesProceedings of the International Astronomical Union, 2010
AbstractStars form in the densest regions of clouds of cold molecular hydrogen. Measuring structure in these clouds is far from trivial as 99% of the mass of a molecular cloud is inaccessible to direct observation. Over the last decade we have been developing an alternative, more robust density tracer technique based on dust extinction measurements ...
J. Alves, M. Lombardi, C. Lada
openaire   +2 more sources

The Second Survey of the Molecular Clouds in the Large Magellanic Cloud by NANTEN. I. Catalog of Molecular Clouds [PDF]

open access: yesThe Astrophysical Journal Supplement Series, 2008
54 pages in total, 18 figures (21 files) and 4 tables, to appear in Astrophysical Journal Supplement Series. A full color version with higher resolution figures is available at http://www.a.phys.nagoya-u.ac.jp/~kawamura/research/NANTEN_LMC_1_preprint_highres ...
Akira Mizuno   +11 more
openaire   +8 more sources

Cloud Computing Enabled Big Multi-Omics Data Analytics

open access: yesBioinformatics and Biology Insights, 2021
High-throughput experiments enable researchers to explore complex multifactorial diseases through large-scale analysis of omics data. Challenges for such high-dimensional data sets include storage, analyses, and sharing.
Saraswati Koppad   +3 more
doaj   +1 more source

THE LINK BETWEEN TURBULENCE, MAGNETIC FIELDS, FILAMENTS, AND STAR FORMATION IN THE CENTRAL MOLECULAR ZONE CLOUD G0.253+0.016 [PDF]

open access: yes, 2016
Star formation is primarily controlled by the interplay between gravity, turbulence, and magnetic fields. However, the turbulence and magnetic fields in molecular clouds near the Galactic center may differ substantially compared to spiral-arm clouds ...
C. Federrath   +12 more
semanticscholar   +1 more source

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