Results 61 to 70 of about 4,695,407 (375)

Molecular clouds in M82

open access: yesThe Astrophysical Journal, 1984
CO observations of the peculiar galaxy M82 have been made at 79 positions using the 14 m FCRAO telescope (HPBW = 50'') in order to obtain a fully sampled map of the central 2 kpc as well as the radial distribution of molecular gas out to 3 kpc along the major axis.
Young, JS, SCOVILLE, NZ
openaire   +3 more sources

An Investigation of the Entropy Associated with a Collapsing Molecular Cloud

open access: yesAstronomy
The investigation of entropy variation during the star formation process within collapsing molecular clouds represents a significant field of inquiry in astrophysics.
Gemechu Muleta Kumssa
doaj   +1 more source

Discovery of the Pigtail Molecular Cloud in the Galactic Center

open access: yes, 2012
This paper reports the discovery of a helical molecular cloud in the central molecular zone (CMZ) of our Galaxy. This "pigtail" molecular cloud appears at (l, b, V_LSR) ~ (-0.7deg, +0.0deg, -70 to -30 km/s), with a spatial size of ~ (20 pc)^2 and a mass ...
Binney   +27 more
core   +1 more source

Evolving molecular cloud structure and the column density probability distribution function [PDF]

open access: yes, 2014
The structure of molecular clouds can be characterized with the probability distribution function (PDF) of the mass surface density. In particular, the properties of the distribution can reveal the nature of the turbulence and star formation present ...
R. L. Ward, J. Wadsley, A. Sills
semanticscholar   +1 more source

Molecular clouds in the center of M 81 [PDF]

open access: yesAstronomy & Astrophysics, 2007
We investigate the molecular gas content and the excitation and fragmentation properties in the central region of the spiral galaxy Messier 81 in both the ^{12}CO(1-0) and ^{12}CO(2-1) transitions. We have recently observed the two transitions of CO in the M~81 center with A, B, and HERA receivers of the IRAM 30-m telescope.
CASASOLA, VIVIANA   +3 more
openaire   +6 more sources

Anchoring Magnetic Field in Turbulent Molecular Clouds [PDF]

open access: yes, 2009
One of the key problems in star formation research is to determine the role of magnetic fields. Starting from the atomic inter-cloud medium (ICM) which has density nH ~ 1 per cubic cm, gas must accumulate from a volume several hundred pc across in order ...
Alyssa Goodman   +26 more
core   +2 more sources

ASTROCHEMICAL CORRELATIONS IN MOLECULAR CLOUDS [PDF]

open access: yesThe Astrophysical Journal, 2015
Accepted by ApJ.
Erik Rosolowsky   +4 more
openaire   +4 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

The Molecule Cloud - compact visualization of large collections of molecules

open access: yesJournal of Cheminformatics, 2012
Background Analysis and visualization of large collections of molecules is one of the most frequent challenges cheminformatics experts in pharmaceutical industry are facing.
Ertl Peter, Rohde Bernhard
doaj   +1 more source

Comparative Analysis of Molecular Clouds in M31, M33 and the Milky Way [PDF]

open access: yes, 2007
We present BIMA observations of a 2$\arcmin$ field in the northeastern spiral arm of M31. In this region we find six giant molecular clouds that have a mean diameter of 57$\pm$13 pc, a mean velocity width of 6.5$\pm$1.2 \kms, and a mean molecular mass of
Christine D. Wilson   +7 more
core   +2 more sources

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