DPS 2001 meeting, November 2001
Session 46. Cometary Atmospheres and Solar Wind Interaction
Oral, Chairs: M. Hanner, A. Levasseur-Regourd, Friday, November 30, 2001, 3:00-4:10pm, Regency E

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[46.02] Comet Hale-Bopp (C/1995 O1): UVSTAR-FUV Spectroscopy from the Shuttle

B.C. Cosmovici (IFSI-CNR,Rome,Italy), V. Bratina (INOA,Firenze,Italy), G. Schwarz (DLR-DE,Wessling,Germany), G.P Tozzi (Oss.Arcetri,Firenze,Italy), M.J. Mumma (NASA-GSFC,Greenbelt,USA), R. Stalio (CARSO,Trieste,Italy)

We report on unique postperihelion (2.3 AU) measurements of Comet Hale-Bopp occurred in the FUV range (800-1250 A) by means of the UVSTAR spectrometer from the Space Shuttle during 1997, August 1-18. The projected slit dimension was (0.2x1.9)x106 km2 at the comet distance and the spectral resolution was 16 A. The net spectrum shows possible atomic (HI, OI, CI , NI), ionic (OII, CII, NII) and molecular features, among them the new detection of N2 at 1004, 1009, 1046, 1058 and 1110 A. Evidence of Argon at 1048 A can't be confirmed because of the low resolution and the contamination by N2.

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