Ionization: a possible explanation for the difference of mean disk sizes in star-forming regions [PDF]
Astronomy & Astrophysics, 2020 Context. Surveys of protoplanetary disks in star-forming regions of similar age revealed significant variations in average disk mass in some regions. For instance, disks in the Orion Nebular Cluster (ONC) and Corona Australis (CrA) are on average smaller
M. Kuffmeier, Bo Zhao, Paola Caselli
semanticscholar +1 more source
Evolutionary study of complex organic molecules in high-mass star-forming regions [PDF]
Astronomy & Astrophysics, 2020 We have studied four complex organic molecules (COMs), the oxygen-bearing methyl formate (CH3OCHO) and dimethyl ether (CH3OCH3) as well as the nitrogen-bearing formamide (NH2CHO) and ethyl cyanide (C2H5CN), towards a large sample of 39 high-mass star ...
A. Coletta +8 more
semanticscholar +1 more source
The Star Formation in Radio Survey: 3–33 GHz Imaging of Nearby Galaxy Nuclei and Extranuclear Star-forming Regions [PDF]
Astrophysical Journal Supplement Series, 2020 We present 3, 15, and 33 GHz imaging toward galaxy nuclei and extranuclear star-forming regions using the Karl G. Jansky Very Large Array as part of the Star Formation in Radio Survey.
S. Linden +7 more
semanticscholar +1 more source
Trigonometric Parallaxes of High-mass Star-forming Regions: Our View of the Milky Way [PDF]
Astrophysical Journal, 2019 We compile and analyze approximately 200 trigonometric parallaxes and proper motions of molecular masers associated with very young high-mass stars. Most of the measurements come from the BeSSeL Survey using the VLBA and the Japanese VERA project.
M. Reid +17 more
semanticscholar +1 more source
Survey of ortho-H2D+ in high-mass star-forming regions [PDF]
Astronomy & Astrophysics, 2020 Context. Deuteration has been suggested to be a reliable chemical clock of star-forming regions due to its strong dependence on density and temperature changes during cloud contraction. In particular, the H3+ isotopologues (e.g.
G. Sabatini +9 more
semanticscholar +1 more source
TRIGONOMETRIC PARALLAXES OF HIGH MASS STAR FORMING REGIONS: THE STRUCTURE AND KINEMATICS OF THE MILKY WAY [PDF]
, 2014 Over 100 trigonometric parallaxes and proper motions for masers associated with young, high-mass stars have been measured with the Bar and Spiral Structure Legacy Survey, a Very Long Baseline Array key science project, the European VLBI Network, and the ...
M. Reid +15 more
semanticscholar +1 more source
Dynamical evolution of fractal structures in star-forming regions [PDF]
, 2020 The Q-parameter is used extensively to quantify the spatial distributions of stars and gas in star-forming regions as well as older clusters and associations.
Emma C Daffern-Powell, R. Parker
semanticscholar +1 more source
ALMA and ROSINA detections of phosphorus-bearing molecules: the interstellar thread between star-forming regions and comets [PDF]
Monthly notices of the Royal Astronomical Society, 2019 To understand how phosphorus (P)-bearing molecules are formed in star-forming regions, we have analysed the Atacama Large Millimeter/Submillimeter Array (ALMA) observations of PN and PO towards the massive star-forming region AFGL 5142, combined with a
V. Rivilla +14 more
semanticscholar +1 more source
Submillimeter and Far-Infrared Polarimetric Observations of Magnetic Fields in Star-Forming Regions [PDF]
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, L. Fissel
semanticscholar +1 more source
Distances and Kinematics of Gould Belt Star-forming Regions with Gaia DR2 Results [PDF]
Astrophysical Journal, 2018 We present an analysis of the astrometric results from the Gaia second data release (DR2) for young stellar objects (YSOs) in star-forming regions related to the Gould Belt (GB).
S. Dzib +4 more
semanticscholar +1 more source