Limits on the interstellar cosmic ray electron spectrum below ∼1-2 GeV derived from the galactic polar radio spectrum and constrained by new Voyager 1 measurements

Journal of Geophysical Research: Space Physics

Volumn 113, Issue 11, 2008, Pages

  Webber, W R ^a   Higbie, P R ^b  

^a NEW MEXICO STATE UNIVERSITY   (United States)

^b Physics Department New Mexico State University ^*  (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 58749091612     PISSN: None     EISSN: 21699402     Source Type: Journal    
DOI: 10.1029/2008JA013386     Document Type: Article

References (22)

1. Alcarez, J., et al. (2000), Leptons in near earth orbit, Phys. Lett. B., 484, 10-22.
2. Beck, R. (1991), Magnetic fields in spiral galaxies, ASP Conf. Ser., 18, 43-56.
3. Berkhuijsen, E. M., D. Miter, and P. Müller (2006), Filling factors and scale heights of the diffuse ionized gas in the Milky Way, Astron. Nachr., 327, 82-96.
4. Cane, H. V. (1979), Spectra of the non-thermal radio radiation from the galactic polar regions, Mon. Not. R. Astron. Soc., 189, 465-478.
5. Cummings, A. C. (1973), A study of cosmic ray positron and electron spectra in interplanetary and interstellar space and the solar modulation of cosmic rays, Appendix B, Ph.D. thesis, Caltech.
6. Dulk, G. A., W. B. Erickson, R. Manning, and J. L. Baguette (2001), Calibration of low frequency radio telescopes using the galactic background radiation, Astron. Astrophys., 365, 294-300.
7. Ferreira, S. E. S., M. S. Potgieter, and W. R. Webber (2004), Modulation of low energy electrons in the outer heliosphere, Adv. Space Res., 34, 126-131.
8. Higbie, P. J., J. D. Peterson, J. M. Rockstroh, and W. R. Webber (1999), Calculations of the <1 GeV galactic electron spectrum using a Monte Carlo diffusion program and a comparison with the low energy galactic gamma ray spectrum, paper presented at 26th, ICRC, Salt Lake City, pp. 246-248.
9. Lang, K. R. (1999), Astrophysical Formulae, vol. 1, 3rd ed., Springer, New York.
10. Langner, U. W, O. C. de Jager, and M. S. Potgieter (2001), Proposed local interstellar spectra for cosmic ray electrons, paper presented at 27th, ICRC, Hamburg, pp. 3992-3995.
11. Lawson, K. D., C. J. Mayer, C. J. Osborne, and M. L. Parkinson (1987), Variations in the spectral index of the galactic radio continuum emission in the Northern Hemisphere, Mon. Not. R. Astron. Soc., 225, 307-327.
12. McDonald, F. B., W. R. Webber, E. C. Stone, A. C. Cummings, B. C. Heikkila, and B. C. Lal (2007), Voyager observations of galactic cosmic ray electrons in the heliosheath, Eos Trans. AGU, Fall Meet, Abstract SH11A-082007, pp. 3992-3995.
13. Novaco, J. C., and L. W. Brown (1978), Non-thermal galactic emission below 10 MHz, Astrophys. J., 221, 114-123.
14. Peterson, J. D., and W. R. Webber (2002), Interstellar absorption of the galactic polar low-frequency radio background synchrotron spectrum as an indicator of dumpiness in the warm ionized medium, Astrophys. J., 575, 217-224:
15. Ptuskin, V. S., I. V. Moskalenko, F. C. Jones, A. W. Strong, and V. N. Zirakashvili (2006), Dissipation of magnetohydrodynamic waves on energetic particles: Impact on interstellar turbulence and cosmic-ray transport, Astrophys. J., 642, 902-916.
16. Reich, P., and W. Reich (1988), A map of spectral indices of the galactic radio continuum emission between 408 MHz and 1420 MHz for the entire northern sky, Astron. Astrophys. Suppl. Ser., 74, 7-23.
17. Simon, A. J. B. (1977), The origin of the extragalactic background radiation between 0.5 and 400 MHz, Mon. Not R. Astron. Soc., 180, 429-435.
18. Strong, A. W., and I. V. Moskalenko (1998), Propagation of cosmic ray nucleons in the Galaxy, Astrophys. J., 509, 212-228.
19. Webber, W. R. (1993), Monte Carlo calculations of cosmic rays in the Galaxy: Effect of source distributions on the age and matter distributions, Astrophys. J., 402, 185-187.
20. Webber, W. R. (2000), The diffusion of cosmic rays in the galaxy - A Monte Carlo approach, AIP Conf. Proc., 528, 396-402.
21. Webber, W. R., and J. M. Rockstroh (1997), Monte Carlo calculations of cosmic ray electron and nuclei diffusion in the galaxy - A comparison of data and predictions, Adv. Space Res., 19, 817-820.
22. Webber, W. R., A. C. Cummings, F. B. McDonald, E. C. Stone, B. Heikkila, and N. Lal (2007), Passage of a large interplanetary shock from the inner heliosphere to the heliospheric termination shock and beyond: Its effects on cosmic rays at Voyagers 1 and 2, J. Geophys. Res., 34, L20107, doi:10.1029/2007JA031339.