The helium mass fraction in Jupiter's atmosphere

Science

Volumn 272, Issue 5263, 1996, Pages 849-851

  Von Zahn, U ^a   Hunten, D M ^b  

^a UNIVERSITY OF ROSTOCK   (Germany)

^b UNIVERSITY OF ARIZONA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

HELIUM; HYDROGEN;

ARTICLE; ASTRONOMY; ATMOSPHERE; INTERFEROMETRY; MICROCLIMATE; REFRACTOMETRY;

ATMOSPHERE; EXTRATERRESTRIAL ENVIRONMENT; HELIUM; HYDROGEN; INTERFEROMETRY; JUPITER; REFRACTOMETRY;

EID: 0030578064     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.272.5263.849     Document Type: Article

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26. We thank our many colleagues and students for their diligent and untiring efforts on behalf of the HAD experiment. Over the years, H. J. Hoffmann contributed heavily to the instrument development effort; W. Mett was responsible for radiation hardening of instrument subsystems and W. Schulte for laboratory simulations of the instrument descent into the Jovian atmosphere; H. Schütze performed the calibration and environmental tests of the three units of HAD instruments; H. Schütze and G. Lehmacher supported integration of the instrument into the spacecraft and systems tests; K. Pelka and G. Lehmacher assisted us through software development; and W. B. Hubbard was most helpful with advice on the high-pressure behavior of H-He mixtures. The interferometer part of the HAD instrument was developed by C. Zeiss, Oberkochen, Germany, and the other portion of the HAD was developed by Messerschmitt-Bölkow-Blohm, Ottobrunn, Germany. Supported by grants 50QJ90060 and 50QJ9501 of DARA GmbH; the German Space Agency, Bonn; and contract 958696 from the Jet Propulsion Laboratory.