Infrared Observations of the Jovian System from Voyager 1

  title={Infrared Observations of the Jovian System from Voyager 1},
  author={Rudolf A. Hanel and Barney J. Conrath and Michael Flasar and Virgil G. Kunde and Paul Lowman and William C. Maguire and John Christopher Pearl and Joseph A. Pirraglia and Robert E. Samuelson and Daniel Gautier and Peter J. Gierasch and S. Kumar and Cyril Ponnamperuma},
  pages={972 - 976}
The infrared spectroscopy and radiometry investigation has obtained spectra of Jupiter and its satellites between approximately 180 and 2500 cm–1 with a spectral resolution of 4.3 cm–1. The Jupiter spectra show clear evidence of H2, CH4 C2H2, C2H6, CH3D, NH3, PH3, H2O, and GeH4. A helium concentration of 0.11 � 0.03 by volume is obtained. Meridional temperature cross sections show considerable structure. At high latitudes, the stratosphere is warmer in the north than in the south. The upper… 
Infrared Observations of the Neptunian System
Comparison of winds derived from images with the vertical wind shear calculated from the temperature field indicates a general decay of wind speed with height, a phenomenon also observed on the other three giant planets.
Jovian upper atmospheric temperature measurement by the Voyager 1 UV spectrometer
The first measurement of the neutral temperature in the exosphere of Jupiter is reported. The observations were carried out by the Voyager 1 Ultraviolet Spectrometer during the solar occultation
Thermal profiles in the auroral regions of Jupiter
The temperature structure within the northern auroral region of Jupiter is studied by reanalyzing the Voyager 1/infrared interferometer and radiometer spectrometer (IRIS) spectra. The total measured
Infrared Observations of the Saturnian System from Voyager 2
During the passage of Voyager 2 through the Saturn system, infrared spectral and radiometric data were obtained for Saturn, Titan, Enceladus, Tethys, Iapetus, and the rings, suggesting an approximate symmetry in the small-scale structure.
The Atmosphere of Jupiter: An Analysis of Voyager Radio Occultation Measurements.
Coherently related S (2.3 GHz) and X band (8.4 GHz) signals transmitted from Voyager 1 and 2 have been used to probe the Jovian atmosphere during occultations of the spacecraft by Jupiter. The
Infrared observations of the saturnian system from voyager 1.
During the passage of Voyager 1 through the Saturn system, the infrared instrument acquired spectral and radiometric data on Saturn, the rings, and Titan and other satellites, implying a depletion of helium in the atmosphere of Saturn relative to that of Jupiter.
Spectroscopic data obtained by the Infrared Interferometer Spectrometer (IRIS) aboard Voyager 1 and 2 have been re-visited. Using the spectroscopic data and footprints of the IRIS aperture on the


Detection of water vapor on Jupiter
High-altitude (12.4 km) spectroscopic observations of Jupiter at 5 microns from the NASA 91.5 cm airborne infrared telescope have revealed 14 absorptions assigned to the rotation-vibration spectrum
The Jupiter System Through the Eyes of Voyager 1
The cameras aboard Voyager 1 have provided a closeup view of the Jupiter system, revealing heretofore unknown characteristics and phenomena associated with the planet's atmosphere and the surfaces of
Magnetic Field Studies at Jupiter by Voyager 1: Preliminary Results
The analysis and interpretation of magnetic field perturbations associated with intense electrical currents flowing near or in the magnetic flux tube linking Jupiter with the satellite Jo and induced by the relative motion between Io and the corotating Jovian magnetosphere are reported.
Io: An Intense Brightening Near 5 Micrometers
Spectrophotometric observations of the jovian satellite Io on 20 and 21 February 1978 (Universal Time) found that the 5-micrometer albedo of Io is near unity under ordinary conditions, so the observed transient phenomenon must have been the result of an emission mechanism.
Voyager imaging experiment
The overall objective of this experiment is exploratory reconnaissance of Jupiter, Saturn, their satellites, and Saturn's rings. Such reconnaissance, at resolutions and phase angles unobtainable from
The abundance of CH3D and the D/H ratio in Jupiter.
From observations of the nu 2 parallel band of mono-deuterated methane (CH3D) in the Jovian atmosphere, we have deduced a CH3D abundance and mixing ratio and a value for the D/H ratio in this planet,
Absorption bands in the spectrum of Io
Near-infrared spectra of Io in the region from 2.8 to 4.2 microns are reported which show distinct absorption features, the most notable at 4.1 microns. Frozen volatiles or atmospheric gases cannot
Propagation of planetary‐scale disturbances from the lower into the upper atmosphere
The possibility that a significant part of the energy of the planetary-wave disturbances of the troposphere may propagate into the upper atmosphere is investigated. The propagation is analogous to
The D/H and C/H ratios in Jupiter from the CH3D phase
A study is made of D/H and C/H ratios in Jupiter from the CH3D phase, noting the previous investigations have yielded inconsistent results. Spectra are analyzed by a comprehensive comparison with