Results 21 to 30 of about 332,346 (345)
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.
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Dusty magnetohydrodynamics in star-forming regions [PDF]
Journal 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.
Van Loo, S. +4 more
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Gamma rays from star-forming regions [PDF]
AIP Conference Proceedings, 2008 Star-forming regions have been tentatively associated with gamma-ray sources since the early days of the COS B satellite. After the Compton Gamma-Ray Observatory, the statistical evidence for such an association has became overwhelming. Recent results from Cherenkov telescopes indicate that some high-energy sources are produced in regions of active ...
Gustavo E. Romero +3 more
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Age spreads in star forming regions? [PDF]
, 2008 Rotation periods and projected equatorial velocities of pre-main-sequence (PMS) stars in star forming regions can be combined to give projected stellar radii. Assuming random axial orientation, a Monte-Carlo model is used to illustrate that distributions
D'Antona +5 more
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Dynamical evolution of star-forming regions [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 20 pages, 9 figures, accepted for publication in ...
Parker, R.J. +3 more
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, 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)
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Star-Forming Regions in the SMC [PDF]
Proceedings 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
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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
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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
The Effect of Local Galaxy Surface Density on Star Formation for HI selected galaxies [PDF]
, 2006 We present the result of investigations into two theories to explain the star formation rate-density relationship. For regions of high galaxy density, either there are fewer star forming galaxies, or galaxies capable of forming stars are present but some
Doyle, Marianne T. +1 more
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