Results 31 to 40 of about 137,092 (301)

ON THE THEORY OF THE OF-CENTRAL EXPLOSION IN A SPHERICALLY STRATIFIED MEDIUM

Radio Physics and Radio Astronomy, 2015
Аn analytical solution for a spherically stratified medium is constructed on the strength of an earlier obtained exact solution of Kompaneets equation for the shock front in a planar stratified medium with the density changing as the hyperbolic tangent ...
G. V. Donets
doaj   +1 more source

Chemistry of Molecular Clouds [PDF]

International Astronomical Union Colloquium, 1989
AbstractA discussion is presented of the chemistry of quiescent molecular clouds, and the effects of the presence of polycyclic aromatic hydrocarbon molecules and of cosmic-ray induced ultraviolet photons are examined. A comparison is made with the chemistry occurring in molecular clouds that are subjected to shocks and the differences between ...
openaire   +1 more source

Molecular Clouds in the Galactic Plane from l = [59.°75, 74.°75] and b = [−5.°25, +5.°25]

The Astrophysical Journal Supplement Series, 2023
In this paper we present the distribution of molecular gas in the Milky Way Galactic plane from l = [59.75, 74.75]° and b = [−5.25, +5.25]°, using the MWISP ^12 CO/ ^13 CO/C ^18 O emission-line data.
Chunxue Li, Hongchi Wang, Yuehui Ma, Lianghao Lin, Yang Su, Chong Li, Yan Sun, Xin Zhou, Ji Yang   +8 more
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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
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Turbulent Driving Scales in Molecular Clouds

, 2009
Supersonic turbulence in molecular clouds is a dominant agent that strongly affects the clouds' evolution and star formation activity. Turbulence may be initiated and maintained by a number of processes, acting at a wide range of physical scales.
Anathpindika, Ballesteros-Paredes, Ballesteros-Paredes, Bally, Banerjee, Basu, Bergin, Brunt, Brunt, Brunt, Brunt, Brunt, C. M. Brunt, Dale, Dobbs, Elmegreen, Elmegreen, Falgarone, Glover, Goldsmith, Hartmann, Heitsch, Heyer, Heyer, Heyer, Heyer, Kim, Klessen, Knee, Koda, Larson, Lazarian, Lazarian, M. H. Heyer, M.-M. Mac Low, Mac Low, Mac Low, Mac Low, Matzner, Miesch, Offner, Ossenkopf, Ostriker, Pan, Price, Quillen, Ridge, Ridge, Rosolowsky, Scalo, Schneider, Shu, Stone, Stone, Stone, Swift, Walawender   +56 more
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Characterizing the 3D Structure of Molecular Cloud Envelopes in the Cloud Factory Simulations

The Astrophysical Journal
We leverage recent numerical simulations of highly resolved star-forming regions in a Milky Way–like galaxy to explore the nature of extended gaseous envelopes around molecular clouds.
Elijah Mullens, Catherine Zucker, Claire E. Murray, Rowan Smith   +3 more
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Molecular Clouds: Comet Factories? [PDF]

International Astronomical Union Colloquium, 1985
AbstractRecent discoveries seem to indicate a catastrophic history of terrestrial evolution, explicable in terms of Oort cloud disturbance by molecular clouds in the Galactic disc. The problem of Oort cloud replenishment thus assumes considerable significance and reasons are given for supposing comet exchange takes place during actual penetration of ...
openaire   +1 more source

ATF4‐mediated stress response as a therapeutic vulnerability in chordoma

Molecular Oncology, EarlyView.
We screened 5 chordoma cell lines against 100+ inhibitors of epigenetic and metabolic pathways and kinases and identified halofuginone, a tRNA synthetase inhibitor. Mechanistically halofuginone induces an integrated stress response, with eIF2alpha phosphorylation, activation of ATF4 and its target genes CHOP, ASNS, INHBE leading to cell death ...
Lucia Cottone, James Dunford, Eleanor Calcutt, Vicki Gamble, Filiz Senbabaoglu Aksu, Lorena Ligammari, Georgina Wherry, Giorgia Gaeta, John C. Christianson, Adrienne M. Flanagan, Udo Oppermann, Adam P. Cribbs   +11 more
wiley   +1 more source

Physical Properties and Galactic Distribution of Molecular Clouds identified in the Galactic Ring Survey

, 2010
We derive the physical properties of 580 molecular clouds based on their 12CO and 13CO line emission detected in the University of Massachusetts-Stony Brook (UMSB) and Galactic Ring surveys.
Allen, Anderson, Bacmann, Benjamin, Benjamin, Bernard, Bloemen, Boulanger, Elmegreen, Falgarone, Federrath, Glover, Goldsmith, Gordon, Heitsch, Heyer, Heyer, Heyer, Jackson, James M. Jackson, Jill Rathborne, Julia Roman-Duval, Kerr, Klessen, Larson, Mandelbrot, Mark Heyer, Oort, Quireza, Rathborne, Rathborne, Reid, Robert Simon, Rohlfs, Roman-Duval, Scalo, Scalo, Simon, Sodroski, Strong, Tasker, Urquhart, Wakker, Whittet, Williams, Williams, Wolfire, Wolfire   +47 more
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Dense Molecular Clumps with Large Blue Asymmetries: Evidence for Collapse

The Astrophysical Journal
An analysis of the Millimetre Astronomy Legacy Team 90 GHz survey has produced a sample of 27 candidate dense molecular clumps with large collapse motions, as revealed by large “blue” asymmetrical line profiles of the optically thick HCO ^+ (1–0) line ...
James M. Jackson, J. Scott Whitaker, Edward Chambers, Robert Simon, Cristian Guevara, David Allingham, Philippa Patterson, Nicholas Killerby-Smith, Jacob Askew, Patricio Sanhueza, Ian W. Stephens, Anika Schmiedeke, Robert Loughnane   +12 more
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