Results 31 to 40 of about 100,003 (312)
Why Jet Power and Star Formation Are Uncorrelated in Active Galaxies
GalaxiesJet luminosity from active galaxies and the rate of star formation have recently been found to be uncorrelated observationally. We show how to understand this in the context of a model in which powerful AGN jets enhance star formation for up to hundreds ...
David Garofalo +2 more
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Models of Late-type Disk Galaxies: 1-D Versus 2-D
Open Astronomy, 2014 We investigate the effects of stochasticity on the observed galaxy parameters by comparing our stochastic star formation two-dimensional (2-D) galaxy evolution models with the commonly used one-dimensional (1-D) models with smooth star formation. The 2-D
Mineikis T., Vansevičius V.
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Star-formation rate in compact star-forming galaxies [PDF]
Astrophysics and Space Science, 2018 11 pages, 7 figures, accepted for publication in Astrophysics and Space ...
I. Y. Izotova, Yu. I. Izotov
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Star formation rate indicators [PDF]
, 2013 41 pages, 5 figures. Proceedings of the XXIII Canary Islands Winter School of Astrophysics: `Secular Evolution of Galaxies', edited by J.
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Star formation rate in the solar neighborhood
, 2006 This thesis develops a method for obtaining the star formation histories of a mixed, resolved population through the use of color-magnitude diagrams (CMDs). The method is applied to the derivation of the local star formation rate, modeling observations of the Hipparcos satellite wigth synthetic CMDs computed for different star formation histories with ...
M. Cignoni
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Rates of galactic star formation [PDF]
Nature, 1985 A remarkably simple argument successfully accounts for the rate of star formation in different galaxies. The snag is that the timescale is uncomfortably short.
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THE STAR FORMATION RATE OF SUPERSONIC MAGNETOHYDRODYNAMIC TURBULENCE [PDF]
The Astrophysical Journal, 2011 This work presents a new physical model of the star formation rate (SFR), verified with an unprecedented set of large numerical simulations of driven, supersonic, self-gravitating, magneto-hydrodynamic (MHD) turbulence, where collapsing cores are captured with accreting sink particles.
Padoan, P., Nordlund, A.
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The Star Formation Rate of Molecular Clouds [PDF]
, 2014 We review recent advances in the analytical and numerical modeling of the star formation rate in molecular clouds and discuss the available observational constraints. We focus on molecular clouds as the fundamental star formation sites, rather than on the larger-scale processes that form the clouds and set their properties.
Padoan, P +7 more
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The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada
Population Ecology, EarlyView.We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley +1 more source
Star Formation Rates in Interacting Starburst Galaxies [PDF]
The Astrophysical Journal Supplement Series, 2002 By narrowband imaging in Hα and in the adjacent red stellar continuum we have studied the rate and distribution of star formation in 43 systems of luminous and ultraluminous IR galaxies currently undergoing interaction and merging. These galaxies are amongst the most luminous at 60 μm and range in distance from ~50 up to 100 Mpc. Here we present the Hα
Dopita, Michael +3 more
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