Results 21 to 30 of about 563,924 (339)

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

Star-Forming Regions in the SMC [PDF]

open access: yesProceedings of the International Astronomical Union, 2006
AbstractSMC has been going through an active star formation epoch, especially during the last 0.2 Gyr when the close encounter with the LMC occured. Our goal is to detect regions dominated by early-type stars and gas and examine their behaviour at different wavelengths.
Gonidakis, I.   +8 more
openaire   +2 more sources

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

Comparing Complex Chemistry in Neighboring Hot Cores: NOEMA Studies of W3(H2O) and W3(OH)

open access: yesThe 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

Masers in Star Forming Regions [PDF]

open access: yesSymposium - 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

ChemInform Abstract: The Chemistry of Star‐Forming Regions [PDF]

open access: yesChemInform, 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

Mapping Physical Conditions in Neighboring Hot Cores: NOEMA Studies of W3(H2O) and W3(OH)

open access: yesThe Astrophysical Journal, 2023
The complex chemistry that occurs in star-forming regions can provide insight into the formation of prebiotic molecules at various evolutionary stages of star formation.
Morgan M. Giese   +3 more
doaj   +1 more source

Explaining the Chemical Inventory of Orion KL through Machine Learning

open access: yesThe Astrophysical Journal, 2023
The interplay of the chemistry and physics that exists within astrochemically relevant sources can only be fully appreciated if we can gain a holistic understanding of their chemical inventories. Previous work by Lee et al.
Haley N. Scolati   +4 more
doaj   +1 more source

The Way of Water: ALMA Resolves H2O Emission Lines in a Strongly Lensed Dusty Star-forming Galaxy at z ∼ 3.1

open access: yesThe Astrophysical Journal, 2023
We report Atacama Large Millimeter/submillimeter Array (ALMA) high-resolution (≲0.3″) observations of water emission lines p -H _2 O(2 _02 − 1 _11 ), o -H _2 O(3 _21 − 3 _12 ), p -H _2 O(4 _22 − 4 _13 ), in the strongly lensed galaxy HATLASJ113526.2 ...
Francesca Perrotta   +12 more
doaj   +1 more source

Star-Forming Regions

open access: yes, 2022
Invited chapter for the "Handbook of X-ray and Gamma-ray Astrophysics" (Eds. C. Bambi and A. Santangelo, Springer Nature, 2022), accepted (42 pages, 7 figures)
openaire   +2 more sources

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