Vlasov simulations of Langmuir Electrostatic Decay and consequences for Type III observations

Journal Article · Thu Mar 25 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3395857· OSTI ID:21371718

Henri, P ^[1]; Califano, F ^[2]; Briand, C; Mangeney, A ^[1]

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1. LESIA, Observatoire de Paris, CNRS, UPMC, Universite Paris Diderot, 5 Place Jules Janssen, 92190 Meudon (France)
2. Dip. Fisica, Universita di Pisa, Largo Pontecorvo n.3, 56100 Pisa (Italy)

The electrostatic decay enables energy transfer from a finite amplitude Langmuir to a backscattered daughter Langmuir wave and ion acoustic density fluctuations. This mechanism is thought to be a first step for the generation of type III solar radio emissions at twice the plasma frequency. The electrostatic decay is here investigated through Vlasov-Poisson simulations by considering Langmuir localized wave packets in the case T{sub e} = T{sub p}. Simulation results are found to be in good agreement with recently reported observations from the STEREO mission of the electrostatic decay of beam-driven Langmuir waves during a type III burst.

• OSTI ID: 21371718
• Journal Information: AIP Conference Proceedings, Vol. 1216, Issue 1; Conference: 12. international solar wind conference, Saint-Malo (France), 21-26 Jun 2009; Other Information: DOI: 10.1063/1.3395857; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ASTROPHYSICS
BOLTZMANN-VLASOV EQUATION
COMPUTERIZED SIMULATION
ELECTRIC FIELDS
ELECTRON TEMPERATURE
ENERGY TRANSFER
FLUCTUATIONS
ION ACOUSTIC WAVES
IONS
LANGMUIR FREQUENCY
PLASMA SIMULATION
PROTON TEMPERATURE
SOLAR RADIO BURSTS
SOLAR WIND
SPACE VEHICLES
WAVE PACKETS
CHARGED PARTICLES
DIFFERENTIAL EQUATIONS
ELECTROMAGNETIC RADIATION
EQUATIONS
ION WAVES
PARTIAL DIFFERENTIAL EQUATIONS
PHYSICS
PLASMA WAVES
RADIATIONS
RADIOWAVE RADIATION
SIMULATION
SOLAR ACTIVITY
STELLAR ACTIVITY
STELLAR WINDS
VARIATIONS
VEHICLES