Simple Model of the Outflow from Starburst Galaxies: Application to Radio 
Observations

Zirakashvili, V. N.; Völk, H. J.

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Simple Model of the Outflow from Starburst Galaxies: Application to Radio Observations

Zirakashvili, V. N., & Völk, H. J. (2006). Simple Model of the Outflow from Starburst Galaxies: Application to Radio Observations. Astrophysical Journal, 636(1, Part 1), 140-148. Retrieved from http://cdsaas.u-strasbg.fr:2001/ApJ/journal/issues/ApJ/v636n1/63035/brief/63035.abstract.html.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-86B7-3 Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-86B8-1

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Zirakashvili, V. N.¹, Autor
Völk, H. J.², Autor

Affiliations:
1Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society, ou_904550
2Prof. Heinrich J. Völk, Emeriti, MPI for Nuclear Physics, Max Planck Society, ou_907548

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Schlagwörter: acceleration of particles, cosmic rays galaxies: ISM galaxies: starburst

Zusammenfassung: We present an analytical model for the hydrodynamic outflow from the disk of a starburst galaxy. The model is used to calculate the cosmic-ray propagation and the radio intensity distribution in the nuclear starburst region of NGC 253. We find that the cosmic-ray energy production rate of the central 600 pc of NGC 253 is about 3 × 1041 ergs s-1, which is about 15% of the total mechanical supernova power. For this inner region, we estimate a terminal outflow velocity of 900 km s-1 and a mass-loss rate of ^M = 24 M_Θ yr_-1.