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6 papers · 1 filter
The Stellar Initial Mass Function in 2007: A Year for Discovering Variations
Bruce G. Elmegreen
The characteristic mass M_c and slope Gamma of the IMF are reviewed for clusters, field regions, galaxies, and regions formed during cosmological times. Local star formation has a…
Star-Forming Complexes in Galaxies
Bruce G. Elmegreen
Star complexes are the largest globular regions of star formation in galaxies. If there is a spiral density wave, nuclear ring, tidal arm, or other well-defined stellar structure,…
A model for selective line-driven acceleration of ions in the solar winds of OB-type stars occurring via the nonlinear process of stimulated Rayleigh scattering
P. P. Sorokin, J. H. Glownia
A conceptually novel model - one in which stimulated (i.e. induced) resonance Rayleigh scattering causes ions of select species to become accelerated to very high terminal velociti…
Gravity, Turbulence, and Star Formation
Bruce G. Elmegreen
The azimuthal power spectra of optical emission from star formation and dust in spiral galaxies resembles the azimuthal power spectra of HI emission from the LMC. These and other p…
Triggering the Formation of Massive Clusters
Bruce G. Elmegreen
There are at least 2 distinct mechanisms for the formation of young massive clusters (YMC), all of which require galactic-scale processes. One operates in harrassed fragile galaxie…
Probing Kolmogorov turbulence beyond the Magellanic Clouds: The Power of Southern Hemisphere's largest optical telescope (11m), SALT
D. L. Block, B. G. Elmegreen, D. M. Elmegreen +1
The Hubble classification scheme of galaxies is based on blue-light appearance. Atlases reveal the rich variety of responses of the Population I component (`the mask') of gas and d…