EVN observations of 6.7 GHz methanol maser polarization in massive star-forming regions [PDF]
Astronomy & Astrophysics, 2019 Context. Magnetohydrodynamical simulations show that the magnetic field can drive molecular outflows during the formation of massive protostars. The best probe to observationally measure both the morphology and the strength of this magnetic field at ...
G. Surcis +4 more
semanticscholar +1 more source
Masers in Star Forming Regions [PDF]
Symposium - International Astronomical Union, 1987 OH and H2O masers in star forming regions are important because they are readily detectable indicators of star formation and because they provide unique information on the kinematics and physical conditions in high density regions (106 – 1010 cm−3) surrounding young stars, regions which cannot be studied by other means at present.
openaire +2 more sources
Star Formation in Collision Debris: Insights from the modeling of their Spectral Energy Distribution [PDF]
, 2010 During galaxy-galaxy interactions, massive gas clouds can be injected into the intergalactic medium which in turn become gravitationally bound, collapse and form stars, star clusters or even dwarf galaxies.
Appleton, P. N. +6 more
core +5 more sources
ChemInform Abstract: The Chemistry of Star‐Forming Regions [PDF]
ChemInform, 1999 AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
D. A. Williams, Thomas W. Hartquist
openaire +2 more sources
A Multiwavelength Look at Galactic Massive Star-forming Regions [PDF]
Astrophysical Journal, 2018 We present a multiwavelength study of 28 Galactic massive star-forming H ii regions. For 17 of these regions, we present new distance measurements based on Gaia DR2 parallaxes. By fitting a multicomponent dust, blackbody, and power-law continuum model to
B. Binder, M. Povich
semanticscholar +1 more source
Interstellar Glycolaldehyde, Methyl Formate, and Acetic Acid. I. A Bimodal Abundance Pattern in Star-forming Regions [PDF]
Astrophysical Journal, 2019 The relative column densities of the structural isomers methyl formate, glycolaldehyde, and acetic acid are derived for a dozen positions toward the massive star-forming regions MM1 and MM2 in the NGC 6334I complex, which are separated by ∼4000 au ...
S. El-Abd +5 more
semanticscholar +1 more source
Comparing Complex Chemistry in Neighboring Hot Cores: NOEMA Studies of W3(H2O) and W3(OH)
The Astrophysical Journal, 2023 Presented here are NOEMA interferometric observations of the neighboring hot cores W3(H _2 O) and W3(OH). The presence of two star-forming cores at different evolutionary stages within the same parent cloud presents a unique opportunity to study how the ...
Will E. Thompson +3 more
doaj +1 more source
Rapid destruction of protoplanetary discs due to external photoevaporation in star-forming regions [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We analyse N-body simulations of star-forming regions to investigate the effects of externalfar- and extreme-ultraviolet photoevaporation from massive stars on protoplanetary discs. Byvarying the initial conditions of simulated star-forming regions, such
R. Nicholson +5 more
semanticscholar +1 more source
Testing 24 micron and Infrared Luminosity as Star Formation Tracers for Galactic Star Forming Regions [PDF]
, 2013 We have tested some relations for star formation rates used in extra-galactic studies for regions within the Galaxy. In nearby molecular clouds, where the IMF is not fully-sampled, the dust emission at 24 micron greatly underestimates star formation ...
Evans II, Neal J. +1 more
core +2 more sources
Parallaxes for Star-forming Regions in the Inner Perseus Spiral Arm [PDF]
Astronomical Journal, 2019 We report trigonometric parallax and proper motion measurements of 6.7 GHz CH3OH and 22 GHz H2O masers in eight high-mass star-forming regions (HMSFRs) based on Very Long Baseline Array (VLBA) observations as part of the Bar and Spiral Structure Legacy ...
Bo Zhang +10 more
semanticscholar +1 more source