An atmosphere on Ganymede from its occultation of SAO 186800 on 7 June 1972

Carlson, R. W; Bhattacharyya, J. C; Smith, B. A; Johnson, T. V; Hidayat, B; Smith, S. A; Taylor, G. E; O'Leary, B; Brinkmann, R. T

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dc.contributor.author	Carlson, R. W
dc.contributor.author	Bhattacharyya, J. C
dc.contributor.author	Smith, B. A
dc.contributor.author	Johnson, T. V
dc.contributor.author	Hidayat, B
dc.contributor.author	Smith, S. A
dc.contributor.author	Taylor, G. E
dc.contributor.author	O'Leary, B
dc.contributor.author	Brinkmann, R. T
dc.date.accessioned	2009-06-29T15:58:56Z
dc.date.available	2009-06-29T15:58:56Z
dc.date.issued	1973-09
dc.identifier.citation	Science, Vol. 182, No. 4107, pp. 53 - 55	en
dc.identifier.issn	0036-8075
dc.identifier.uri	http://hdl.handle.net/2248/4602
dc.description	Restricted Access
dc.description.abstract	On 7 June 1972 the third Jovian satellite Ganymede occulted the eighth-magnitude star SAO 186800. Successful photoelectric observations obtained at Lembang, Java (Indonesia), and Kavalur, India, show nonabrupt immersions and emersions, indicating the presence of an atmosphere whose surface pressure is greater than about 10/Sup-3 millibar. By fitting the two occultation durations as chords to a model disk, the diameter is found to be 5270 (+30, -~ 200) kilometers, the major error contribution arising from the uncertain atmospheric thickness below the occultation layer. The derived mean density is 2.0 (-0.03, + ~ 0.2) grams per cubic centimeter.	en
dc.language.iso	en	en
dc.publisher	The American Association for the Advancement of Science	en
dc.relation.uri	http://dx.doi.org/10.1126/science.182.4107.53	en
dc.rights	© The American Association for the Advancement of Science	en
dc.title	An atmosphere on Ganymede from its occultation of SAO 186800 on 7 June 1972	en
dc.type	Article	en