Volume Filling Factors of the DIG
Astrophysics
2015-06-24 v1
Abstract
Combining dispersion measures, distances and emission measures for 157 pulsars lying above \mid b \mid > 5 degree and between 60 degree < l < 360 degree we find the mean volume filling factor (\bar{f_v}) of the diffused ionized gas in the Milky Way. This filling factor is inversely related to the mean electron density (\bar{n_c}) in the clouds, \bar{f_v} = (0.0184 +/- 0.0014) \bar{n_c}^{-1.07 +/- 0.03}, implying a nearly constant average electron density distribution within 3 kpc of the sun.
Keywords
Cite
@article{arxiv.astro-ph/0312084,
title = {Volume Filling Factors of the DIG},
author = {Dipanjan Mitra and Elly M. Berkhuijsen and Peter Mueller},
journal= {arXiv preprint arXiv:astro-ph/0312084},
year = {2015}
}
Comments
4 pages, 3 figures. To be published in "How does the Galaxy work?", eds. E.J. Alfaro, E. Perez & J. Franco, Kluwer (Proc. of conference held 23-27 June 2003 in Granada, Spain)