Results 71 to 80 of about 4,653,928 (371)

Evidence for a Molecular Cloud Origin for Gamma-Ray Bursts: Implications for the Nature of Star Formation in the Universe [PDF]

, 2001
It appears that the majority of rapidly-, well-localized gamma-ray bursts with undetected, or dark, optical afterglows, or `dark bursts' for short, occur in clouds of size R > 10L_{49}^{1/2} pc and mass M > 3x10^5L_{49} M_{sun}, where L is the isotropic ...
Dal Fiume D., Daniel E. Reichart, Joseph R. D., Noguchi M., Owens A., Paul A. Price, Wright G. S., Yonetoku D.   +7 more
core   +2 more sources

Molecular clouds in M82

The 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

Astronomy
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

Molecular clouds in the center of M 81 [PDF]

Astronomy & 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, COMBES F, BETTONI D, GALLETTA, GIUSEPPE   +3 more
openaire   +6 more sources

Molecules in G1.6-0.025 - 'Hot' Chemistry in the Absence of Star Formation at the Periphery of the Galactic Center Region [PDF]

, 2009
We present molecular line mapping of the Giant Molecular Cloud G1.6-0.025, which is located at the high longitude end of the Central Molecular Zone of our Galaxy.
Bachiller, Caswell, Cesaroni, Dahmen, Downes, Figer, Figer, Figer, Gardner, Gardner, Gardner, Gardner, Geppert, Güsten, Güsten, Güsten, Hartquist, Hidaka, Huettemeister, Huettemeister, Kaifu, Karl M. Menten, Liechti, Lis, Lockett, Martin, Martín-Pintado, Martín-Pintado, Menten, Menten, Mezger, Minh, Motte, Oka, Peter Schilke, Pierce-Price, Pihlström, Pottage, Robert W. Wilson, Schilke, Schuller, Silvia Leurini, Sobolev, Szczepanski, van der Veen, van Dishoeck, Walmsley, Walmsley, Whiteoak, Yusef-Zadeh, Yusef-Zadeh, Zylka   +51 more
core   +1 more source

FORMATION OF MASSIVE MOLECULAR CLOUD CORES BY CLOUD–CLOUD COLLISION [PDF]

, 2013
Recent observations of molecular clouds around rich massive star clusters including NGC 3603, Westerlund 2, and M20 revealed that the formation of massive stars could be triggered by a cloud–cloud collision.
T. Inoue, Y. Fukui
semanticscholar   +1 more source

ASTROCHEMICAL CORRELATIONS IN MOLECULAR CLOUDS [PDF]

The Astrophysical Journal, 2015
Accepted by ApJ.
Erik Rosolowsky, Stella S. R. Offner, Stella S. R. Offner, Thomas G. Bisbas, Brandt A. L. Gaches   +4 more
openaire   +4 more sources

Discovery of the Pigtail Molecular Cloud in the Galactic Center

, 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, Carey, Gillessen, Handa, Kazuhisa Kamegai, Kunihiko Tanaka, LaRosa, Lee, Makoto Nagai, Morris, Nagai, Novak, Oka, Oka, Oka, Oka, Oka, Oka, Oka, Sawada, Shinji Matsumura, Sofue, Sofue, Tanaka, Tetsuo Hasegawa, Tomoharu Oka, Tsuboi, Tsuboi   +27 more
core   +1 more source

The Molecule Cloud - compact visualization of large collections of molecules

Journal 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

Magnetic Fields in Molecular Clouds—Observation and Interpretation

Galaxies, 2021
The Zeeman effect and dust grain alignment are two major methods for probing magnetic fields (B-fields) in molecular clouds, largely motivated by the study of star formation, as the B-field may regulate gravitational contraction and channel turbulence ...
Hua-Bai Li
doaj   +1 more source