HR: 16:50h
AN: SH34A-03    [Abstracts]
TI: Observations of Energetic O+ in the Distant Tail Magnetosheath: Results from STEREO/PLASTIC
AU: * Kistler, L M
EM: Lynn.Kistler@unh.edu
AF: University of New Hampshire, Space Science Center, Morse Hall, Durham, NH 03824, United States
AU: Galvin, A B
AF: University of New Hampshire, Space Science Center, Morse Hall, Durham, NH 03824, United States
AU: Popecki, M A
AF: University of New Hampshire, Space Science Center, Morse Hall, Durham, NH 03824, United States
AU: Mouikis, C
AF: University of New Hampshire, Space Science Center, Morse Hall, Durham, NH 03824, United States
AU: Farrugia, C
AF: University of New Hampshire, Space Science Center, Morse Hall, Durham, NH 03824, United States
AU: Moebius, E
AF: University of New Hampshire, Space Science Center, Morse Hall, Durham, NH 03824, United States
AU: Lee, M A
AF: University of New Hampshire, Space Science Center, Morse Hall, Durham, NH 03824, United States
AU: Ellis, L
AF: University of New Hampshire, Space Science Center, Morse Hall, Durham, NH 03824, United States
AU: Simunac, K
AF: University of New Hampshire, Space Science Center, Morse Hall, Durham, NH 03824, United States
AU: Singer, K
AF: University of New Hampshire, Space Science Center, Morse Hall, Durham, NH 03824, United States
AU: Blush, L M
AF: University of Bern, Physikalisches Institute, Bern, 3012, Switzerland
AU: Klecker, B
AF: MPE, Giessenbachstrasse, Garching, 85748, Germany
AU: Wimmer-Schweingruber, R F
AF: University of Kiel, Institute for Experimental and Applied Physics, Kiel, 24098, Germany
AU: Thompson, B
AF: NASA GSFC, 8800 Greenbelt Rd, Greenbelt, MD 20771, United States
AU: Bochsler, P
AF: University of Bern, Physikalisches Institute, Bern, 3012, Switzerland
AU: Wurz, P
AF: University of Bern, Physikalisches Institute, Bern, 3012, Switzerland
AU: Karrer, R
AF: University of Bern, Physikalisches Institute, Bern, 3012, Switzerland
AU: Opitz, A
AF: University of Bern, Physikalisches Institute, Bern, 3012, Switzerland
AU: Luhmann, J
AF: University of California, Berkeley, Space Sciences Laboratory, Berkeley, CA 94720, United States
AU: Acuna, M
AF: NASA GSFC, 8800 Greenbelt Rd, Greenbelt, MD 20771, United States
AU: Russell, C T
AF: UCLA, Institute of Geophysics, Los Angeles, CA 90095, United States
AB: Two identical Plasma and Suprathermal Ion Composition (PLASTIC) instruments are now flying on the STEREO A and B observatories, which launched in October 2006. PLASTIC is a solar wind and heliospheric ion mass spectrometer that utilizes electrostatic deflection, post-acceleration,time-of-flight, energy, and position measurements in the energy-per-charge range of 0.25-80 keV/e. During the month of February, 2007, as the spacecraft were approaching their final heliocentric orbits, STEREO B traversed the dusk-side magnetosheath and boundary layer from -100 Re to -300 Re down the tail. Throughout the month, bursts of energetic O+ were observed in the magnetosheath. The energy of the O+ extended to the upper range of the instrument, 80 keV. The occurrence of O+ correlated with periods of high solar wind velocity. We will compare these observations with observations of O+ in the near-earth magnetosheath, as observed by CLUSTER, and discuss the possible sources and transport paths for these ions.
DE: 2724 Magnetopause and boundary layers
DE: 2728 Magnetosheath
DE: 2748 Magnetotail boundary layers
DE: 2784 Solar wind/magnetosphere interactions
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Joint Assembly