Interpretation of radio continuum and molecular line observations of Sgr B2: Free-free and synchrotron emission, and implications for cosmic rays
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Protheroe, Raymond; Ott, Juergen; Ekers, Ronald D; Jones, D I; Crocker, Roland
Description
Recent ammonia (1,1) inversion line data on the Galactic star-forming region Sgr B2 show that the column density is consistent with a radial Gaussian density profile with a standard deviation of 2.75 pc. Deriving a formula for the virial mass of spherical Gaussian clouds, we obtain Mvir = 1.9 × 106 M⊙ for Sgr B2. For this matter distribution, a reasonable magnetic field and an impinging flux of cosmic rays of solar neighbourhood intensity, we predict the expected synchrotron emission from the...[Show more]
Collections | ANU Research Publications |
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Date published: | 2008 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/82340 |
Source: | Monthly Notices of the Royal Astronomical Society |
DOI: | 10.1111/j.1365-2966.2008.13752.x |
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01_Protheroe_Interpretation_of_radio_2008.pdf | 1.15 MB | Adobe PDF | Request a copy |
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