HR: 1340h
AN: SH53A-1244 [Abstracts]
TI: Study of Wave-particle Interactions in the Inner Magnetosphere:
RESONANCE project
AU: Mogilevsky, M M
EM: mogilevsky@romance.iki.rssi.ru
AF: IKI Institute of Space Research, 84/32 Profsoyuznaya Street, Moscow, 117997
Russian Federation
AU: Zelenyi, L M
EM: zelenyi@iki.rssi.ru
AF: IKI Institute of Space Research, 84/32 Profsoyuznaya Street, Moscow, 117997
Russian Federation
AU: * Walker, S N
EM: simon.walker@sheffield.ac.uk
AF: ACSE, University of Sheffiled, Mappin Street, Sheffield, S1 3JD
United Kingdom
AU: Trakhtengerts, V Y
EM: andrei@appl.sci-nnov.ru
AF: 3Institute of Applied Physics RAS, 46, Ulyanov Street, Nizhny Novgorod, 603600
Russian Federation
AU: Demekhov, A G
EM: andrei@appl.sci-nnov.ru
AF: 3Institute of Applied Physics RAS, 46, Ulyanov Street, Nizhny Novgorod, 603600
Russian Federation
AB:
The principle of natural Maser (Microwave Amplification by Stimulated Emission of radiation) is similar to that of the
laboratory optical Laser. Amplification of radiation occurs due to the propagation of an electromagnetic wave through the
media with free energy. This free energy may manifest itself in one of two sources. The first is related to the
non-equilibrium population inversion of molecular states. Such masers are usually associated with active star formation
regions.The second free energy source comes from the non-equilibrium of plasma particle distributions. These distributions
are observed in the planetary magnetospheres and have been proposed as the source for Anomalous X-rays Pulsars such as AXP
4U0142+61. The most common form of population inversion for cyclotron masers is the loss-cone distribution, produced as a
result of the loss of particles with large pitch angles as they bounce along converging magnetic field lines. Examples of
such systems include planetary magnetospheres, flux tubes within an active region of the Sun, flare stars, and field lines
connecting the two stars of a close binary system. In spite of their abundance in the Universe the only natural masers that
can be studied experimentally in-situ are magnetospheric masers. A new space project, RESONANCE, is aimed at studies of
wave-particle interactions and plasma dynamics in the inner magnetosphere. The main goals of the RESONANCE project are as
follows: (i) Long-term observations of the natural phenomena and (ii) an artificial influence on the operation of
magnetospheric maser. Two satellites will be launched in the magneto-synchronous orbit, that allows the conduction of
measurements along a single magnetic flux tube for sufficiently long time intervals, could make it possible to document the
details of the long-term evolution of plasma phenomena for a given region. Physical parameters of phenomena and requirements
for experiments are discussed.
DE: 2730 Magnetosphere: inner
DE: 2772 Plasma waves and instabilities (2471)
DE: 2794 Instruments and techniques
DE: 7534 Radio emissions
SC: SPA-Solar and Heliospheric Physics [SH]
MN: Fall Meeting 2005