The Io Plasma Torus Volcanoes Atmospheres and Magnetospheres
- Slides: 24
The Io Plasma Torus Volcanoes, Atmospheres, and Magnetospheres, Oh My! Dr. Jeff Morgenthaler
Outline • Scientific background – Galilean satellites – Jovian magnetosphere – Io plasma torus (IPT) • Observing the IPT • Relating the IPT to other facets of the Jovian system • Time allowing: other fuzzy blobs I know and love – Comets – The heliosphere
Scientific background: Galilean Satellites • Jupiter is one of the “original” 5 planets – Planet is Greek for “wanderer” – Mercury, Venus, Mars, Jupiter, Saturn • First telescopic observation by Galileo in 1610 – Showed mini Copernican system – Four satellites Images: Universe, Kaufmann & Freedman
Galilean Satellite Family Portrait Image source: NASA/JPL Io Ganymede Europa Callisto
Tidal heating of Io Image source: NASA/JPL
Io is the most volcanic body in the solar system Pillan Patera Prometheus APOD 2007 February 11, Galileo data from 1997 June 28
Scientific background: Jovian Magnetosphere • Magnetic field: approximated by offset, tilted dipole Source
Scientific background: Jovian Magnetosphere • Magnetosphere: where a planet’s magnetic field has more influence than the solar wind on plasma • ~50 Rj upwind, ~100 Rj downwind NASA/JPL
Io Plasma Torus NASA/JPL
Observing the Io Plasma Torus N. M. Schneider and J. T. Trauger (1995) Neutral density filter Narrow-band filter (e. g. S II])
Observing the Io Plasma Torus: Mc. Math-Pierce Solar Telescope Data
Mc. Math-Pierce Solar Telescope Io Torus Imager Neutral density filter Narrow-band filter Guider CCD
Mc. Math-Pierce Solar Telescope Facility (works at night too)
Relating the IPT to other facets of the Jovian system Jovian System – Io Plasma Torus STIS observations of Io
Io [OI] line Example spectrum: 2002 Jan 26
Io Plasma Torus Summary • Torus imager for portable telescopes has been successfully deployed (Nozawa et al. 2004) • Need to verify sky is dark enough above Holland, MI N. M. Schneider and J. T. Trauger (1995)
Comet Basics
Anatomy of a comet Sun (106 km) Ion Tail Dust Tail Head Dust (1 m)
Studying comets: remote sensing CN coma:
X-ray emission from comets and the solar system • Solar wind • Heliosphere • Local interstellar medium (solar wind ion) (cometary or interplanetary hydrogen)
Diffuse X-ray Spectrometer What used to be thought of as interstellar X-ray emission may be entirely heliospheric
- Io plasma torus
- Chapter 8 earthquakes and volcanoes
- Interesting facts about mt mayon
- Constructive and destructive forces examples
- Hexagonal torus
- Centrum tendineum
- Stanford torus space station
- Crus dextrum et sinistrum
- Glutwire
- Fundamental group of torus
- Torus tubarius
- Torus palatino definicion
- Torus eversion
- Dusty torus
- Torus eversion
- Glut torus
- Gl open
- Glut solid torus example
- Torus intervenosus
- Torus
- Torus parametrisierung
- Torus topology network
- Helen enright
- Torus palatin prise en charge
- Sagittal keel