Results 11 to 20 of about 288,104 (243)
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
core +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 +1 more source
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
openaire +3 more sources
Organic Compounds in Star Forming Regions [PDF]
Origins of Life and Evolution of Biospheres, 2014 The influence of complex dust composition on the general chemical evolution of a prestellar core and the content of complex organic compounds is studied. It is shown that various component groups respond differently to the presence of a small dust population.
Kochina, O., Wiebe, D.
openaire +2 more sources
Near-infrared circular polarization survey in star-forming regions : Correlations and trends [PDF]
, 2014 We have conducted a systematic near-infrared circular polarization (CP) survey in star-forming regions, covering high-mass, intermediate-mass, and low-mass young stellar objects.
Hough, J. +8 more
core +2 more sources
, 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
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
openaire +5 more sources
Star-Forming or Starbursting? The Ultraviolet Conundrum [PDF]
, 2009 Compared to starburst galaxies, normal star forming galaxies have been shown to display a much larger dispersion of the dust attenuation at fixed reddening through studies of the IRX-beta diagram (the IR/UV ratio "IRX" versus the UV color "beta").
Asplund +53 more
core +3 more sources
CHEMICAL EVOLUTION OF STAR-FORMING REGIONS
Annual Review of Astronomy and Astrophysics, 1998 ▪ Abstract Recent advances in the understanding of the chemical processes that occur during all stages of the formation of stars, from the collapse of molecular clouds to the assemblage of icy planetesimals in protoplanetary accretion disks, are reviewed.
van Dishoeck, Ewine F. +1 more
openaire +5 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