Results 31 to 40 of about 705,440 (315)

Membership Analysis and 3D Kinematics of the Star-forming Complex around Trumpler 37 Using Gaia-DR3

open access: yesThe Astrophysical Journal, 2023
Identifying and characterizing young populations of star-forming regions are crucial to unraveling their properties. In this regard, Gaia-DR3 data and machine-learning tools are very useful for studying large star-forming complexes.
Swagat R. Das   +4 more
doaj   +1 more source

Dynamical evolution of star-forming regions [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2013
20 pages, 9 figures, accepted for publication in ...
Richard J. Parker   +3 more
openaire   +5 more sources

Digging into the Interior of Hot Cores with ALMA: Spiral Accretion into the High-mass Protostellar Core G336.01–0.82

open access: yesThe Astrophysical Journal Letters, 2023
We observed the high-mass star-forming core G336.01–0.82 at 1.3 mm and 0.″05 (∼150 au) angular resolution with the Atacama Large Millimeter/submillimeter Array (ALMA) as part of the Digging into the Interior of Hot Cores with ALMA survey.
Fernando A. Olguin   +11 more
doaj   +1 more source

Dynamical evolution of fractal structures in star-forming regions [PDF]

open access: yes, 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]

open access: yesMonthly 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

Water in star- and planet-forming regions [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012
In this paper, we discuss the astronomical search for water vapour in order to understand the disposition of water in all its phases throughout the processes of star and planet formation. Our ability to detect and study water vapour has recently received a tremendous boost with the successful launch and operation of the ...
Ewine F. van Dishoeck, Edwin A. Bergin
openaire   +5 more sources

Submillimeter and Far-Infrared Polarimetric Observations of Magnetic Fields in Star-Forming Regions [PDF]

open access: yesFrontiers 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]

open access: yesAstrophysical 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

Trigonometric Parallaxes of Star-forming Regions beyond the Tangent Point of the Sagittarius Spiral Arm [PDF]

open access: yesAstrophysical Journal, 2019
As part of the BeSSeL Survey, we report trigonometric parallaxes and proper motions of molecular maser sources associated with 13 distant high-mass star-forming regions in the Sagittarius spiral arm of the Milky Way.
Y. Wu 吴   +11 more
semanticscholar   +1 more source

Dusty magnetohydrodynamics in star-forming regions [PDF]

open access: yesJournal of Plasma Physics, 2010
AbstractStar formation occurs in dark molecular regions where the number density of hydrogen nuclei nH exceeds 104 cm−3 and the fractional ionization is 10−7 or less. Dust grains with sizes ranging up to tenths of microns and perhaps down to tens of nanometers contain just less than 1% of the mass.
Ove Havnes   +4 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy