Results 31 to 40 of about 138,438 (330)
OBSERVATIONS OF NON TYPICAL MASERS AT THE RT-22 RADIO TELESCOPE IN 2004–2013
Radio Physics and Radio Astronomy, 2017 Purpose: Some peculiarities of emission of Class I methanol masers on the 80–71A+ transition at 95 GHz in sources closely associated with protostar-forming regions and in supernova remnants are studied.
V. M. Shulga +6 more
doaj +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 +8 more
doaj +1 more source
Molecular Abundances in the Sgr a Molecular Cloud [PDF]
Symposium - 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.
Yc Minh, William M. Irvine, Per Friberg
openaire +2 more sources
Statistical study of dust properties in LMC molecular clouds [PDF]
, 2010 The objective of this paper is to construct a catalog providing the dust properties and the star formation efficiency (SFE) of the molecular clouds in the Large Magellanic Cloud (LMC).
Akiko Kawamura +36 more
core +2 more sources
HCO+ in dark molecular clouds [PDF]
Serbian Astronomical Journal, 2007 Formyl ion is one of the most important molecules, and primary molecular ion to be found in molecular clouds. This paper reviews chemical pathways of formation and destruction of the molecule, as well as its use as a tool in the study of dark molecular ...
Nikolić S.
doaj +1 more source
The LEGO Large Program: Constraining the Physics of Line Emission in Galaxy Observations [PDF]
EPJ Web of Conferences, 2022 The IRAM Large Program LEGO studies molecular clouds in the Milky Way to constrain the physics controlling molecular line emission in galaxies. This is done by imaging two dozen clouds with setups that provide continuous spectral coverage of about 85–115
Kauffmann Jens, Barnes Ashley
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Submillimeter and Far-Infrared Polarimetric Observations of Magnetic Fields in Star-Forming Regions
Frontiers in Astronomy and Space Sciences, 2019 Observations of star-forming regions by the current and upcoming generation of submillimeter polarimeters will shed new light on the evolution of magnetic fields over the cloud-to-core size scales involved in the early stages of the star formation ...
Kate Pattle, Laura Fissel
doaj +1 more source
Understanding the Kinetic Energy Deposition within Molecular Clouds
The Astrophysical Journal, 2023 According to the structures traced by ^13 CO spectral lines within ^12 CO molecular clouds (MCs), we investigate the contributions of their internal gas motions and relative motions to the total velocity dispersions of ^12 CO MCs. Our samples of 2851 ^12
Lixia Yuan +10 more
doaj +1 more source
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
The simulation of molecular clouds formation in the Milky Way [PDF]
, 2012 Using 3D hydrodynamic calculations we simulate formation of molecular clouds in the Galaxy. The simulations take into account molecular hydrogen chemical kinetics, cooling and heating processes.
A. M. Sobolev +88 more
core +1 more source