New physical parameters for the Rosette nebula

Details New physical parameters for the Rosette nebula New physical parameters for the Rosette nebula

Sep 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979aj.....84.1335v&link_type=abstract

Astronomical Journal, vol. 84, Sept. 1979, p.1335-1338.

Astronomy and Astrophysics

Astronomy

11

Astronomical Spectroscopy, Nebulae, Radio Astronomy, Radio Spectra, Electron Density (Concentration), Electron Energy, H Alpha Line, H Ii Regions, Hydrogen Ions, Rosette Shapes, Thermodynamic Equilibrium

Scientific paper

Past determinations of the physical parameters of the Rosette nebula involving radio spectral line observations have generally employed the assumption of local thermodynamic equilibrium (LTE). This paper presents new recombination line and continuum observations made at 6.5 GHz with the 46-m dish at the Algonquin Radio Observatory, and perform a full non-LTE determination of the electron temperature, electron density and turbulent velocity in the H II region. The energetics and dynamics of the Rosette are reconsidered in the light of these new physical parameters.

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