WORKSHOP ON
Analysis of Returned Comet Nucleus Samples
JANUARY 16-18,1989 MILPITAS, CALIFORNIA
SPONSORED BY LUNAR AND PLANETARY INSTITUTE NASA AMES RESEARCH CENTER WORKSHOP ON
Analysis of Returned Comet Nucleus Samples
JANUARY 16-18, 1989 MILPITAS, CALIFORNIA
SPONSORED BY LUNAR AND PLANETARY INSTITUTE NASA AMES RESEARCH CENTER
Cover photo courtesy of H. U. Keller. Copyright held by Max-Planck-Jnstitut fur Aeronomie, Lindau- Katlenburg, FRG. Available from the Lunar and Planetary Institute as part of the Comet Halley image sequence ( #C3443 ).
PROGRAM COMMITI'EE MEMBERS
Thomas Ahrens Eberhard Gri.in California Institute of Technology Max-Planck-Institut filr Kemphysik
Lou Allamandola Martha Hanner NASA Ames Research Center let Propulsion Laboratory
David Blake Alan Harris (Ex Officio) NASA Ames Research Center let Propulsion Laboratory
Donald Brownlee John Kerridge University of Washington University of California, Los Angeles
Theodore E. Bunch Yves Langevin NASA Ames Research Center Universite de Paris, Sud
Humberto Campins Larry Nyquist, Convener Planetary Science Institute NASA Johnson Space Center
Sherwood Chang, Convener Gerhard Schwehm NASA Ames Research Center European Space Agency, ESTEC
JeffCuzzi Paul Weissman NASA Ames Research Center Jet Propulsion Laboratory
Monday. .Januacy 16th
7:00 - 8:00 a.m. Registration
8:00a.m. Welcome & Introduction to Workshop Sherwood Chang, NASA, Ames Research Center
8:10a.m. Rosetta - Comet Nucleus Sample Return Mission: Status Report Geoffrey Briggs, NASA Headquarters Dr. Marcello Coradini, European Space Agency
SESSION lA Chairman: Sherwood Chang 8:30a.m. - 12:00 Noon
SOURCES AND NATURE OF COMETARY COMPONENTS
Invited Speaker Presentations
Nuclear Synthesis and Isotopic Composition of Insteller Grains Alexander Tielens
Interstellar and Cometary Dust John Mathis
Refractory Solids in Chondrites and Comets: How Similar? John Wood
10:30 a.m. COFFEE BREAK
Solar Nebular Condensates and the Composition of Comets Jonathan Lunine
Non-equilibrium Chemistry in the Solar Nebula and Early Solar System: Implications for the Chemistry of Comets Bruce Fegley Poster Presentations
Thennal and Chemical Processing of the Outennost Layer of Cometary Nuclei Campins H. Krider E. P.
Sulfur Compounds in Comets Kim S. A'Hearn M.
Specrophotometric Observations of Comet P/Giacobini-Zinner Konno I. Wyckoff S. Wehinger P. A.
Computer Simulation of Dust Grain Evolution Liffman K.
12 Noon· 1:30 p.m. GROUP LUNCH & POSTER REVIEW
SESSIONIB Chairman: Thomas Ahrens 1:30- 5:30p.m.
FORMATION AND PHYSICAL PROCESSING OF COMETS
Invited Sneaker Presentations
Comments on Comet Shapes and Aggregation Processes William Hartmann
Physical Processing of Cometary Nuclei Paul R. Weissman S. Alan Stern
COMPOSITION OF COMETS FROM SPACECRAFT OBSERVATION
Gas and Ice Composition of Comet P/Halley Peter Eberhardt
3:30p.m. COFFEE BREAK
Composition of Dust from Comet P/Halley: The Mineral Fraction Yves Langevin
Organic Chemistry of Comet Dust as Derived from PUMA 1 Data J. Kissel F. R. Krueger Poster Presentations
Cosmogenic Nuclides in Cometary Materials: Implications for Rate of Mass Loss and Exposure History Herzog G. F. Englert P. A. J. Reedy R. C.
Measurements of Long-Lived Cosmogenic Nuclides in Returned Comet Nucleus Samples Nishiizumi K. Kohn C. P. Arnold J. R.
Morphology and Compositional Differentiation of the Surface of Comets Huebner W. F. Boice D. C.
Role of Dust to Gas Production Rate Ratio in Cometary Physics Ibadov S.
The In-situ Cometary Particulate Size Distribution Measured for One Comet: P/Halley McDonnell J.A.M. Pankiewicz G. S.
5:30 • 7:30p.m. POSTER REVIEW & SOCIAL (cocktails and hors d' oeuvres buffet)
PANEL DISCUSSION COMET SAMPLE HANDLING, CURATION & ALLOCATION 7:30 - 9:30p.m.
Chairmen: Douglas Blanchard, NASA Johnson Space Center Dieter Stoffler, Inst. fiir Planetologie, Universitllt MUnster
Panel Members: Benton Clark, Martin Marietta Peter Eberhardt, Physikalisches Inst., University of Bern John Oro, University of Houston Edward Whalley, National Research Council of Canada Tuesday. .January 17th
SESSIONIIA Chainnan: Yves Langevin 8:30a.m. -12:15 p.m.
INSIGHTS INTO COMETS OBTAINED FROM ANALYSES OF PRIMITIVE SOLAR SYSTEM MATERIALS
Invited Speaker Presentations
The Cornet Rendezvous Asteroid Flyby Mission David Morrison Marcia Neugebauer Paul Weissman
Electron Beam Analysis of Particulate Cometary Material John Bradley
Evolution of Carbonaceous Chondrite Parent Bodies: Insights into Cometary Nuclei? Harry Y. McSween, Jr.
10:20 a.m. COFFEE BREAK
Isotopic Microanalysis of Returned Cornet Nucleus Samples Ernst Zinner
The Carbon Chemistry of Meteorites: Relationships to Comets Sherwood Chang
Poster Presentations
Identification of Solar Nebula Condensates in Interplanetary Dust Particles and Unequilibrated Ordinary Chondrites Klock W. Thomas K. L. McKay D. S.
What if Chondritic Porous Interplanetary Dust Particles are not the Real McCoy? F. J. M. Rietmeijer
Trajectory-Capture Cell Instrumentation for Measurement of Dust Particle Mass, Velocity and Trajectory, and Particle Capture Simpson J. A. Tuzzolino A. J.
The Measurement of Trace Elements in Interplanetary Dust and Cometary Particles by Ultra-high Sensitivity INAA Zolensky M. E. Lindstrom D. J. Lindstrom R. M. Lindstrom M. M.
12:15 p.m. -1:45 LUNCH BREAK SESSION liB Chairman: Ezio Bussoletti 1:45- 5:00p.m.
EFFECTS OF ASTRO-PHYSICAL/CHEMICAL PROCESSES ON COMETARY MATERIALS
Invited Speaker Presentations
Radiation Modification of Cometary Materials: Laboratory Simulations R. E. Johnson
Metamorphism of Cosmic Dust: Processing from Circumstellar Outflows to the Cometary Regolith Joseph A. Nuth III
From Interstellar Dust to Comets J, Mayo Greenberg
3:25 p.m. COFFEE BREAK
Experimental Studies of Gas Trapping in Amorphous Ice and Thermal Modelling of Comets - Implications for Rosetta Akiva Bar-Nun
Modifications of Comet Materials by the Sublimation Process: Results from Simulation Experiments Eberhardt Griin and KOSI-team
4:45p.m.
The Return of Comet Samples and the Issues of Planetary Protection John Rummel, NASA Planetary Protection Officer
PREVIEW OF POSTER PRESENTATIONS- SESSIONS liB, IliA & IIIB Chairman: Larry Nyquist 5:00 - 5:30p.m.
Poster Presentations - liB
Direct Determination of the Morphology, Stmcture and Composition of Cometary and Interstellar Ice Analogs in the Laboratory Blake D. F. Allamandola L. J. Thennal Histories of the Samples of Two KOSI Comet Nucleus Simulation Experiments Spohn T. Benkhoff J. Klinger J. Griin E. Kochan H.
Nature of Comet(ll)l Materials Stephens].
Mechanical and SEM Analysis ofArtificial Comet Nucleus Samples Thiel K. Kochan H. Roessler K. Griin E. Schwehm G. Hellmann H. Hsiung P. Kolzer G.
Ion Bombardment Experiments Suggesting an Origin for Organic Particles in Pre-Comet(ll)l and Comet(ll)l Ices Wdowiak T. J. Robinson E. L. Flickinger G. C. Boyd D. A.
5:30 - 7:30 p.m. POSTER REVIEW & SOCIAL (cocktails and hors d' oeuvres buffet)
7:30p.m
SPECIAL ADDRESS by Professor Linus Pauling
Inorganic Analogs to Biological Specificity
Dr. Linus Pauling was awarded the Nobel Prize in Chemistry in 1954 and the Nobel Peace Prize in 1963. He has received 30 honorary degrees from United States and foreign universities. In addition he has received the following awards and honors: the Langmuir Prize, American Chemical Soceity, 1931; the Nichols Medal, 1941; the Linus Pauling Medal, 1966; the Davy Medal, Royal Society, 1947; Medal for Merit, 1948; Pasteur Medal, Biochemistry Society, France, 1952; Addis Medal, National Nephrosis Federation, 1955; Phillips Memorial Award, America! College of Physicians, 1956, Avogardro Medal, Italian Academy of Science, 1956, Fermat Medal, Sabatier Medal and International Grotius Medal, 1957; Order of Merit, Republic of Italy; Medal, Academy Rumanian People's Republic, 1965; President of Honor, International Society of Research Nutrition and Vital Substances, 1965; Silver Model, Institute France, 1966; and the Supreme Peace Sponsor, World Fellowship of Religions, 1966. His work includes: determination of structure of crystals and molecules; application of quantum mechanics to chemistry; rotation of molecules in crystals; sizes of ions; theory of stability of complex crystals; chemical bond; line spectra; immunochemistry; structure of proteins; molecular abnormality in relation to disease; sickle cell anemia; orthomolecular medicine, vitamin C and cancer; metals and alloys; and ferromagnetism. Dr. Pauling now heads the Linus Pauling Institute of Science and Medicine in Palo Alto, California. Wednesday. January 18
SESSION IliA Chairman: Kurt Marti 8:30-12:00 noon
ANALYTICAL METHODS FOR STUDY OF COMET NUCLEUS SAMPLES
Invited Speaker Presentations
Rosetta Mission Description Gerhard Schwehm
On the Isotope Analysis of Cometary Dust F. Begemann
Isotopic Compositions of Hydrogen, Carbon, Nitrogen and Oxygen Robert Clayton
10:20- 10:40 COFFEE BREAK
Analysis of Organic Compounds in Returned Comet Nucleus Samples John R. Cronin
Methods for the Mineralogical and Textural Analysis of Comet Nucleus Samples Dieter StOffier H. Duren J. KnO!ker
Poster Presentations
Trace Element Abundance Determinations by Synchrotron X-r01 Florescence (SXRF) on Returned Comet Nucleus Mineral Grains Flynn G. J. SuttonS. R.
Prompt Gamma Activation Analysis (PGAA): Technique of Choice for Nondestructive Bulk Analysis of Returned Comet Samples? Lindstrom D. J. Lindstrom R. M.
Candidate Sample Acquisition Systems for the Rosetta Mission Magnani P. G. Gerli C. Colombina G. Vielmo P.
Non-Destructive Trace Element Microanalysis ofAs-Received Cometary Nucleus Samples Using Synchrotron X-r01 Flourescence SuttonS. R.
12:00- 1:30 p.m. LUNCH BREAK SESSION IIIB Chairman: Dave Stevenson 1:30-5:00 p.m.
ANALYTICAL METIIODS FOR STUDY OF COMET NUCLEUS SAMPLES- CONTINUED
Invited Speaker Presentations
Analytical Study of Comet Nucleus Samples Arden Albee
Description and Analysis of Core Samples: The Lunar Experience David McKay
2:50p.m. COFFEE BREAK
The Origin, Composition and History of Cometary Ices from Spectroscopic Studies Louis J, Allamandola
Laboratory Analyses of Micron-sized Solid Grains: Experimental Techniques and Recent Results L. Colangeli Ezio Bussoletti A. Blanco A. Borghesi S. Fonti V. Orofino G. Schwehm
CLOSING REMARKS - Sherwood Chang
Poster Presentations
Microanalytical Characterization of Biogenic Components of Interplanetary Dust di Brozolo F. R. Meeker G. P. Fleming R. H.
Handling and Analysis of lees in Cryostats and Glove Boxes in Vtew of Cometary Samples Roessler K. Eich G. Hey M. Kochan H. Oehler A. Patnaik A. Schlosser W. Schulz R.
Analysis of Particulates of Comet Nucleus Samples; Possible Use of Olivine as Indicator Phase Steele I. M.
Electron Spin Resonance (ESR) Studies of Returned Comet Nucleus Samples TsayF. D.
END OF WORKSHOP