Constraining the Magnetic Field in Gamma Ray Burst Blast Waves

Details Constraining the Magnetic Field in Gamma Ray Burst Blast Waves Constraining the Magnetic Field in Gamma Ray Burst Blast Waves

1998-02-11

arxiv.org/abs/astro-ph/9802125v1

Astronomy and Astrophysics

Astrophysics

15 pages Latex using aasms4.sty file and a Postscript Fig., submitted to Astrophy. J. on Janurary 22, 1998

Scientific paper

We point out that the already existing literature on relativistic collisionless MHD shocks show that the parameter sigma= upstream proper magnetic energy density/upstream rest mass energy density, plays an important role in determining the structure and accelerating properties of such shocks. By adopting a value of sigma= 0.002 which corresponds to the relativistic shock associated with the Crab nebula, and by using appropriate relativistic shock jump conditions, we obtain here a generous upper-limit on the value of (proper) the magnetic field, B ~ 1.5 10^{-3} eta n^{1/2} G, for gamma ray burst (GRB) blast wave. Here, eta= E/Mc^2, where E is the energy and M is the mass of the baryons entrained in the original fireball (FB), and n is the proper number density of the ambient medium. Further, we point out that, in realistic cases, the actual value B could be as low as 5 10^{-6} eta n^{1/2} G. for realistic cases.

Affiliated with

Also associated with

No associations

Rating

Constraining the Magnetic Field in Gamma Ray Burst Blast Waves does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Constraining the Magnetic Field in Gamma Ray Burst Blast Waves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraining the Magnetic Field in Gamma Ray Burst Blast Waves will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-521665