Results 21 to 30 of about 318,054 (345)

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.
Ove Havnes, Gregor E. Morfill, S. Van Loo, Thomas W. Hartquist, Sam Falle   +4 more
openaire   +4 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., Boquien, M., Braine, J., Charmandaris, V., Duc, P. -A., Galliano, F., Lisenfeld, U.   +6 more
core   +5 more sources

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   +2 more sources

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

ChemInform, 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

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, Morgan M. Giese, Dariusz C. Lis, Susanna L. Widicus Weaver   +3 more
doaj   +1 more source

The Spitzer Infrared Nearby Galaxies Survey: A High-Resolution Spectroscopy Anthology [PDF]

, 2008
High resolution mid-infrared spectra are presented for 155 nuclear and extranuclear regions from the Spitzer Infrared Nearby Galaxies Survey (SINGS). The fluxes for nine atomic forbidden and three molecular hydrogen mid-infrared emission lines are also ...
Alonso-Herrero, Appleton, Armus, Armus, B. A. Buckalew, Beirão, Bendo, Bot, Brandl, Bregman, Brunner, Buckalew, C. Bot, C. W. Engelbracht, Cannon, D. A. Dale, D. Calzetti, D. J. Hollenbach, Dale, Dale, Devost, Dudik, E. A. Schlawin, E. J. Murphy, Engelbracht, Engelbracht, Engelbracht, Engelbracht, Farrah, G. Helou, Genzel, Gordon, H. Roussel, Hao, Higdon, Ho, Houck, Hunter, J. D. T. Smith, J. Moustakas, K. D. Gordon, K. Sheth, Kaneda, Kaneda, Kaufman, Kewley, Knop, Kobulnicky, L. Armus, L. C. Johnson, Leitherer, Lutz, Moustakas, O'Halloran, Peeters, Prescott, R. C. Kennicutt, Roussel, Roussel, S. A. Cohen, S. Malhotra, S. Staudaher, Sajina, Sajina, Satyapal, Smith, Smith, Spoon, Sturm, Sturm, T. H. Jarrett, Tayal, Teplitz, Thornley, Valiante, Weedman, Weedman, Weedman, Wu, Yan   +79 more
core   +4 more sources

Star-Forming Regions

, 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

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., Vutisalchavakul, Nalin   +1 more
core   +2 more sources

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

The 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, Will E. Thompson, Dariusz C. Lis, Susanna L. Widicus Weaver   +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., Drinkwater, Michael J.   +1 more
core   +3 more sources