Abstract
Combining dispersion measures, distances and emission measures for 157 pulsars lying above ‖ b ‖> 5° and between 60° < l < 360° we find the mean volume filling factor (f̄ v ) of the diffused ionized gas in the Milky Way. This filling factor is inversely related to the mean electron density (n̄ c) in the clouds, f̄ v = (0.0184 ± 0.0014) n̄ c −1.07± 0.03, implying a nearly constant average electron density distribution within 3 kpc of the sun.
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References
Berkhuijsen, E. M., Mitra, D. & Müller, P., 2003 submitted to A&A
Cordes, J. M. & Lazio, T. W. 2002, astro-ph/0207156
Diplas, A., & Savage, B. D. 1994 ApJ 427, 274
Haffner, L. M., Reynolds, R. J., Tufte, S. L., Madsen, G. J., Jaehnig, K. P., & Percival, J. W. 2003, ApJS 149, 405
Kulkarni, S. R. & Heiles, C. 1988, In Galactic and Extragalactic Radio Astronomy, ed. G. A. Verschuur & K. I. Kellermann (New York: Springer), p. 95
Pynzar, A. V. 1993, Astron. Rep. 37, 245
Reynolds, R. J. 1977, ApJ 216, 433
Reynolds, R. J. 1991, ApJ 372, L17
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Mitra, D., Berkhuijsen, E.M., Müller, P. (2004). Volume Filling Factors of the Dig. In: Alfaro, E.J., Pérez, E., Franco, J. (eds) How does the Galaxy Work?. Astrophysics and Space Science Library, vol 315. Springer, Dordrecht. https://doi.org/10.1007/1-4020-2620-X_17
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DOI: https://doi.org/10.1007/1-4020-2620-X_17
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-2619-5
Online ISBN: 978-1-4020-2620-1
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