Detection of H3+ on Jupiter

  title={Detection of H3+ on Jupiter},
  author={Pierre Drossart and Jean Pierre Maillard and J. J. Caldwell and Sang Jeong Kim and James K. G. Watson and W. A. Majewski and Jonathan Tennyson and S. Miller and Sushil Atreya and John T. Clarke and Jack Hunter Waite and Richard Wagener},
SINCE their detection in the high latitudes of Jupiter, first by the Voyager Ultraviolet Spectrometer (UVS) experiment1,2, then by the International Ultraviolet Explorer (IDE) satellite3, the auroral particle precipitations have been associated with various phenomena in the jovian environment. In the magnetosphere, the H+3 ion, probably of ionospheric origin, was detected in situ by the Voyagers4. Infrared emissions were observed in spectral bands characteristic of CH4 (ref. 5) and of other… Expand
Imaging Jupiter's aurorae from H+ 3 emissions in the 3–4 μm band
SINCE H+ 3 was first spectroscopically detected on Jupiter1,2, there has been considerable interest in using this simple molecular ion to probe conditions existing in the planet's auroral regions.Expand
Images of aurorae on Jupiter from H+3 emission at 4 μm
SINCE their discovery by Voyager1, aurorae on Jupiter have been regularly observed over the past ten years, from space at ultraviolet wavelengths2 and from the Earth in the thermal infrared band3Expand
Morphology of infrared H3+ emissions in the auroral regions of Jupiter
Abstract Simultaneous observations of Jupiter in the 3.5–4 μm range with a camera on the NASA IRTF and a Fourier transform spectrometer on the CFHT are analyzed to retrieve the spectral, spatial, andExpand
Temperatures and Altitudes of Jupiter's Ultraviolet Aurora Inferred from GHRS Observations with the Hubble Space Telescope
Abstract We observed the jovian UV auroral regions with the Goddard high resolution spectrograph (GHRS) on board the Hubble Space Telescope (HST) on Apr. 29, May 2, and June 10, 1995. Observations ofExpand
Spectro-imaging observations of on Jupiter
  • E. Lellouch
  • Physics
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2006
Narrow-band filter, high-spectral-resolution (0.2 cm−1) spectro-imaging infrared observations of Jupiter's auroral zones, acquired in October 1999 and October 2000 with the FTS/BEAR instrument at theExpand
H3+ as an ionospheric sounder of Jupiter and giant planets: an observational perspective
  • P. Drossart
  • Physics, Medicine
  • Philosophical Transactions of the Royal Society A
  • 2019
This paper will focus on the mid-latitude emissions of H3+ on Jupiter, which are fainter and less well studied than the auroral regions, and proposes several plausible mechanisms to explain the observed energy deposition and variability. Expand
Cassini VIMS observations of H3+ emission on the nightside of Jupiter
We present the first detailed analysis of H3+ nightside emission from Jupiter, using Visual and Infrared Mapping Spectrometer (VIMS) data from the Cassini flyby in 2000–2001, producing the firstExpand
The H3+ ion: a remote diagnostic of the jovian magnetosphere
  • J. Connerney, T. Satoh
  • Physics, Biology
  • Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences
  • 2000
It is now possible to produce detailed maps of energy deposition from the Io footprint (L = 6) to the pole, in which both system III and local time variations are evident. Expand
Detection of H3+ auroral emission in Jupiter's 5-micron window
We use high-resolution ground-based observations from the VLT CRIRES instrument in December 2012 to identify sixteen previously undetected H3+ emission lines from Jupiter's ionosphere. These emissionExpand
A baseline spectroscopic study of the infrared auroras of Jupiter
Abstract We present the results of a spectroscopic study of the H + 3 infrared emissions of Jupiter, obtained using the United Kingdom Infrared Telescope (UKIRT) on Mauna Kea, Hawaii, during May 3–5,Expand


Infrared polar brightening on Jupiter. III - Spectrometry from the Voyager 1 IRIS experiment
Spectra from the Voyager 1 IRIS experiment confirm the existence of enhanced infrared emission near Jupiter's north magnetic pole in March 1979. The spectral characteristics of the enhanced emissionExpand
Observations from earth orbit and variability of the polar aurora on Jupiter
Spatially resolved spectra of Jupiter taken with the International Ultraviolet Explorer satellite show enhanced emissions from the polar regions at H L..cap alpha.. (1216 A) and in the Lyman andExpand
Detection of energetic hydrogen molecules in Jupiter's magnetosphere by Voyager 2: Evidence for an ionospheric plasma source
The discovery of energetic (approximately 1 MeV/nuc) H3 and H2 molecules in Jupiter's magnetosphere is reported. The data, obtained with the LECP instrument on Voyager 2, showed these molecules to beExpand
H3 + in the Jovian ionosphere
Recent measurements and theoretical calculations suggest that H3+ ions in their ground vibrational level recombine much more slowly than in the vibrational levels υ ≥ 3. Using these results as aExpand
Enhanced acetylene emission near the north pole of jupiter
We report observations of acetylene emission lines near 13.3 /xm on Jupiter recorded at the NASA Infrared Telescope Facility in July 1984. A strong enhancement in the intensity of Rt0 line of the vsExpand
Extreme Ultraviolet Observations from Voyager 1 Encounter with Jupiter
The observed resonance scattering of solar hydrogen Lyman α by the atmosphere of Jupiter and the solar occultation experiment suggest a hot thermosphere (≥ 1000 K) wvith a large atomic hydrogen abundance. Expand
Radio Science with Voyager at Jupiter: Initial Voyager 2 Results and a Voyager 1 Measure of the Io Torus
Voyager 2 radio signals were observed essentially continuously during a grazing occultation of the spacecraft by the southern limb of Jupiter. Intensity data show a classic atmospheric occultationExpand
Infrared polar brightenings on Jupiter. IV - Spatial properties of methane emission
Abstract Polar “hot spots” observed on Jupiter at 7.8 μm with the NASA Infrared Telescope Facility at Mauna Kea, Hawaii, reveal different characteristics in the northern and southern hemispheres. TheExpand
Possible infrared aurorae on Jupiter
Abstract We have observed infrared brightenings near the poles of Jupiter at 8 μm in early 1980. We suspect they are nonthermal in origin. These brightenings are apparently related to the auroralExpand
Book-Review - Atmospheres and Ionospheres of the Outer Planets and Their Satellites
One of the most fundamental discoveries of the solar system was the detection of four moons in orbit around Jupiter by Galileo Galilei in 1610. The discovery was significant not only in the contextExpand