NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-18 T13:15:23 PDT
Help | Comment | NED Home

For refcode 2011ApJ...735...56E:
Retrieve 30 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Copyright by American Astronomical Society. Reproduced by permission
2011ApJ...735...56E A Law for Star Formation in Galaxies Escala, Andres Abstract. We study the galactic-scale triggering of star formation. We find that the largest mass scale not stabilized by rotation, a well-defined quantity in a rotating system and with clear dynamical meaning, strongly correlates with the star formation rate in a wide range of galaxies. We find that this relation can be understood in terms of self-regulation toward marginal Toomre stability and the amount of turbulence allowed to sustain the system in this self-regulated quasi-stationary state. We test such an interpretation by computing the predicted star formation rates for a galactic interstellar medium characterized by a lognormal probability distribution function and find good agreement with the observed relation. Key words: galaxies: formation, galaxies: ISM, galaxies: star formation, instabilities
Retrieve 30 NED objects in this reference.
Please click here for ADS abstract

Back to NED Home