Now showing items 11-20 of 26
Reanalysis of voyager 2 UVS occultations at Uranus: Hydrocarbon mixing ratios in the equatorial stratosphere
(Elsevier, 1990-12)
Application of noise filtering and inversion techniques to single-channel UVS lightcurves obtained during the Voyager 2 solar occultation at Uranus has yielded tighter constraints on the structure and composition of the ...
Radiative Shocks in Astrophysics and the Laboratory
(Kluwer Academic Publishers; Springer Science + Business Media, Inc., 2005-07)
This paper explores the variations in radiative shock behavior originating from the properties of the system containing the shock. Specifically, the optical depth of the upstream region and the downstream region both affect ...
Vertical structure and size distributions of Martian aerosols from solar occultation measurements
(Elsevier, 1992-05)
Solar occultations performed with a spectrometer on board the Soviet spacecraft Phobos 2 (Blamont et al. 1991) provided data on the vertical structure of the Martian aerosols in the equatorial region (0[deg]-20[deg] N ...
The distribution of ammonia and its photochemical products on Jupiter
(Elsevier, 1977-07)
Altitude profiles of ammonia and its photochemical products are generated in the light of the new measurements of the Jovian temperature structure, eddy transport coefficient, improved chemical scheme, and rate constants. ...
Methane Photochemistry on Neptune: Ethane and Acetylene Mixing Ratios and Haze Production
(Elsevier, 1993-12)
We have used a one-dimensional methane photochemical model to analyze Voyager observations of hydrocarbons and hazes in the stratosphere of Neptune. Vayager IRIS spectra provide information about the global average C2H2 ...
Enhanced acetylene emission near the north pole of jupiter
(Elsevier, 1986-06)
We report observations of acetylene emission lines near 13.3 [mu]m on Jupiter recorded at the NASA Infrared Telescope Facility in July 1984. A strong enhancement in the intensity of R10 line of the [nu]5 band was recorded ...
Possible microwave absorption by H2S gas in Uranus' and Neptune's atmospheres
(Elsevier, 1991-06)
We present new VLA observations of Neptune at 3.55 and 20.1 cm. The disk-averaged brightness temperatures are 191.2 +/- 6 K at 3.55 cm, and 276.4 +/- 10 K at 20.1 cm. These values are consistent with thermal spectra of the ...
Global MHD Simulations of Space Plasma Environments: Heliosphere, Comets, Magnetospheres of Planets and Satellites
(Kluwer Academic Publishers; Springer Science+Business Media, 2000-03)
Magnetohydrodynamics (MHD) provides an approximate description of agreat variety of processes in space physics. Accurate numericalsolutions of the MHD equations are still a challenge, but in the pastdecade a number of ...
Preheat Issues in Hydrodynamic Hedla Experiments
(Kluwer Academic Publishers; Springer Science + Business Media, Inc., 2005-07)
Hydrodynamic experiments have become a very active area within High Energy Density Laboratory Astrophysics. In such experiments, preheat of an interior surface due to heating prior to shock arrival can alter the initial ...
Progress Toward the Study of Laboratory Scale, Astrophysically Relevant, Turbulent Plasmas
(Kluwer Academic Publishers; Springer Science + Business Media, Inc., 2005-07)
Recent results from an ongoing series of Rayleigh-Taylor instability experiments being conducted on the Omega Laser are described. The goal of these experiments is to study, in a controlled laboratory setting, the mixing ...