Saturation of electron cyclotron maser by lower-hybrid waves

Details Saturation of electron cyclotron maser by lower-hybrid waves Saturation of electron cyclotron maser by lower-hybrid waves

Jun 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...358..776f&link_type=abstract

Astronomy and Astrophysics, v.358, p.776-788 (2000)

Astronomy and Astrophysics

Astrophysics

12

Sun: Radio Radiation, Masers

Scientific paper

We perform a numerical study on the quasilinear relaxation of an electron cyclotron maser on the initially dominant mode. We focus thereby on a situation where the initially dominant modes are quasi-electrostatic lower hybrid (lh) waves, which have not been treated in preceding studies. To this end, we chose 0.2 <= omega_p / omega Be < 0.5 (omega_p : plasma-, omega Be: electron cyclotron frequency) and an initial losscone distribution of energetic electrons of the form f(p,mu ) ~ p-xi e-mu 2/mu_0 2 (p: momentum, mu : pitch angle cosine). Superimposed on this is a damping Maxwellian background. From our calculations, we find that multiple peaks in the lower-hybrid wave intensity can occur if the initial loss cone distribution is sufficiently broad. We also find that quasilinear relaxation with respect to lower-hybrid waves does not destroy the capability of the electron distribution to amplify transverse (XOZ) waves, which therefore become dominant at a later stage. The comparison with observations shows that the calculated shape of a single peak in the lower-hybrid energy density displays a remarkable similarity to solar radio spikes.

Affiliated with

Also associated with

No associations

Rating

Saturation of electron cyclotron maser by lower-hybrid 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 Saturation of electron cyclotron maser by lower-hybrid waves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Saturation of electron cyclotron maser by lower-hybrid waves will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1387211