Quasi-monochromatic Foreshock ULF Waves: Comparison between Earth and Venus

CHRISTIAN MAZELLE; L. SHAN; NAHUEL ANDRÉS; CESAR BERTUCCI; KARIM MEZIANE

San Francisco, USA

Congreso; American Geophysical Union; 2014

Large amplitude ultralow frequency (ULF) waves are observed in the ion foreshock upstream from the terrestrial bow shock inside a specific boundary called the ULF foreshock boundary. Many observations have been provided by the WIND spacecraft and by the Cluster mission for which wave-particle interaction has been extensively studied. More recently, with the magnetic field observations from Venus Express, an abundance of quasi monochromatic ULF waves have been observed.