Results 41 to 50 of about 4,621,719 (221)
SUBMILLIMETER POLARIZATION SPECTRUM IN THE VELA C MOLECULAR CLOUD [PDF]
, 2015 Polarization maps of the Vela C molecular cloud were obtained at 250, 350, and 500 μm during the 2012 flight of the balloon-borne telescope BLASTPol.
N. Gandilo +29 more
semanticscholar +1 more source
Cloud-scale Molecular Gas Properties in 15 Nearby Galaxies [PDF]
Astrophysical Journal, 2018 We measure the velocity dispersion, σ, and surface density, Σ, of the molecular gas in nearby galaxies from CO spectral line cubes with spatial resolution 45–120 pc, matched to the size of individual giant molecular clouds. Combining 11 galaxies from the
Jiayi Sun +21 more
semanticscholar +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 +2 more sources
CARMA LARGE AREA STAR FORMATION SURVEY: OBSERVATIONAL ANALYSIS OF FILAMENTS IN THE SERPENS SOUTH MOLECULAR CLOUD [PDF]
, 2014 We present the N2H+ (J = 1 → 0) map of the Serpens South molecular cloud obtained as part of the CARMA Large Area Star Formation Survey. The observations cover 250 arcmin2 and fully sample structures from 3000 AU to 3 pc with a velocity resolution of 0 ...
M. Fernández-López +22 more
semanticscholar +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
Re-examining Larson's Scaling Relationships in Galactic Molecular Clouds [PDF]
, 2009 The properties of Galactic molecular clouds tabulated by Solomon etal (1987) (SRBY) are re-examined using the Boston University-FCRAO Galactic Ring Survey of 13CO J=1-0 emission.
Bloemen +19 more
core +1 more source
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 +27 more
core +1 more source
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. +7 more
core +2 more sources
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
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