NASA Quarterly
UVIS
Q3 - 2009
(May-July 2009)
Quarterly
1
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UVIS: Science Highlights
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BRADLEY: Left panel: FUV slope for four different observations. The ratio is obtained by dividing the average I/F from 1750-1900 Å by the average
I/F from 1400-1600 Å. Off- axis light contaminated the signal from the C ring, with observation 2 containing the least amount of contamination, thus
being the only observation shown for the C ring. Right panel: Retrieved value of mean path length (L). L is relatively flat from the mid B ring through
the outer A ring except for a bump at the inner A ring.
Quarterly
2
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UVIS: Accomplishments
• Science Highlights
–
Quarterly
Esposito: Among Saturn’s rings, the F ring seemed to be the most exotic one, forming strange shapes and strands in response to
the gravity of nearby moons. But now, a closer look from Cassini’s ultraviolet instrument reveals that particles on the outer edge of
the B ring are equally if not more helter-skelter. These transient B ring structures show that gravitational tugs from Saturn’s moon
Mimas disrupt the smooth nature of the ring, inconsistent with simple models of the rings that behave like a fluid.
3
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UVIS: Accomplishments
• Publications
– Published this quarter
0
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In Press (Went into press May-July and also includes still in press from earlier quarters)
18
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Submitted (Submitted May-July and also includes submitted earlier and still in review)
11
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Published 2009 to date:
4
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Published Entire mission
81
• Presentations at scientific conferences
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1 paper at the AGU, Toronto, May 2009 (Hendrix)
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2 paper at the Icy Satellites Workshop, London, UK, June 2009 (Hendrix)
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1 paper at Enceladus Workshop, Leicester, UK, June 2009 (Esposito)
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1 paper at the Magnetospheres of the Outer Planets (MOP), Cologne, July 2009 (Pryor)
• Public Outreach and Press Activities (May-July 2009)
–
3: public talks
–
0: press releases
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2: press conferences (phone interviews)
Quarterly
4
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UVIS: Plans
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–
–
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Quarterly
Science Plans (Aug-Oct 2009)
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Analyze and model low phase angle FUV rings observations. Attempt to model the absolute magnitude of I/F using both Hapke and Shkuratov models
with the goal of constraining the fractional composition of ring particles (Bradley)
•
Analyze density waves in C ring. (Colwell)
•
Write paper on C ring density waves. (Colwell)
•
Write paper on standard analysis of UVIS occultation data. (Colwell)
•
Deliver high level occultation data products to the Planetary Data System (Colwell)
•
Analyze and prioritize icy satellite occultations of stars in the Solstice Mission (Hansen)
•
Develop observation design for UVIS observation of Enceladus’ plume occulting the sun (Hansen)
Publications (Aug-Oct 2009) — In preparation (includes submitted up to now, but not yet published)
•
1 paper in press in Rev. Geophys.
•
4 papers in review at Icarus
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1 paper in press in World Scientific Review
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1 paper in review at Scholarpedia
•
4 papers in Planet. Space. Sci. (2 in review, 2 in press)
•
1 papers in J. Geophys. Res.(1 in review)
•
8 chapters in press in the book Saturn After Cassini-Huygens. Springer-Verlag.
•
5 chapters paper in press in the book Titan from Cassini Huygens. Springer-Verlag.
•
1 paper in review at GRL
•
1 chapter in press in the book Europa
•
1 paper in review in ApJ
•
1 paper in review at J.Phys.B.
29
Upcoming presentations at scientific conferences (Aug-Oct 2009)
•
2 papers at the DPS Meeting, Puerto Rico, 2009 (Albers, Hendrix)
•
1 paper at the EPSC, September 2009, Potsdam (Hendrix)
•
1 paper at the IAU Symposium on Icy Satellites in the Solar System, August 2009, Rio de Janeiro (Hendrix & Hansen)
Public Outreach and Press Activities (Aug-Oct 2009)
•
0: public talks
•
0: press releases
•
0: press conferences (phone interviews)
5
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Backup Material
Quarterly
6
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UVIS: Publications - 2009
•
Colwell, J. E., Cooney, J. H., Esposito, L. W., Sremcevic, M. 2009. Density Waves in Cassini UVIS Stellar
Occultations 1. The Cassini Division. Icarus. (Published April, 2009)
•
Dzhanoev, A. R., A. Loskutov, J. E. Howard, and M. A. F. Sanju. 2009. Stabilized Chaos in The Sitnikov Problem,
in Chaos in Astronomy. Ed. G. Contopoulos and P. A. Patsis. Proceedings of AIP Conference on Chaos in
Astronomy, Athens, 17-20th Sept 2007. Springer-Verlag. pp 303-308. (Published Jan. 2009)
•
Gustin, J., J.-C. Gerard, W. Pryor, P. D. Feldman, D. Grodent and G.Holsclaw. 2009. Characteristics of Saturn's
polar atmosphere and auroral electrons derived from HST/ STIS, FUSE and Cassini/UVIS spectra. Icarus.
(Published March, 2009)
•
Liu, X., A. Heays, D. E. Shemansky, B. R. Lewis and P. D. Feldman. 2009. Analysis of terrestrial-thermospheric
N2 c 1S(0)~b’1S(1) - X 1S dayglow emission observed by the Far Ultraviolet Spectroscopic Explorer, J. Geophys.
Res., (Published April 10, 2009)
Quarterly
7
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UVIS: Publications (In Press)
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Andre, N., M. Blanc, S. Maurice, P. Schippers, E. Pallier, T. I. Gombosi, K. C. Hansen, D. T. Young, F. J. Crary, S. Bolton, E. C. Sittler, H. T. Smith, R.
E. Johnson, R. A Baragiola, A. J. Coates, A. M. Rymer, M. K. Dougherty, N. Achilleos, C. S. Arridge, S. M. Krimigis, D. G. Mitchell, N. Krupp, D. C.
Hamilton, I. Dandouras, D. A. Gurnett, W. S. Kurth, P. Louarn, R. Srama, S. Kempf, J. H. Waite, L. W. Esposito, J. T. Clarke. 2009. Magnetospheric
Regions and Associated Plasma Processes: Synopsis of Cassini Observations During Orbit Insertion. Rev. Geophys. (In press June 2008.)
•
Charnoz, S., L. Dones, L.W. Esposito, P.R. Estrada, M.M. Hedman. 2009. Origin and evolution of Saturn’s ring system, A chapter in the book Saturn
After Cassini-Huygens. Springer-Verlag. (Went to press May 2009)
•
Colwell, J. E., French, R. G., Marouf, E. A., Murray, C. D., Nicholson, P. D., Tiscareno, M. S. 2009. Ring Structure. A chapter in the book Saturn After
Cassini-Huygens. Springer-Verlag. (Went to press May 2009)
•
Cravens, T.E. , R. V. Yelle, J.-E. Wahlund, D. E. Shemansky. 2009. Composition and Structure of the Ionosphere and Thermosphere. A chapter in the
book Titan from Cassini Huygens. Springer-Verlag. (Went to press May 2009)
•
Dzhanoev, A.R., A. Loskutov , J. E. Howard , and M. A. F. Sanjuan. 2009. Chaos stabilization in the three body problem. A chapter in Recent Progress
in Controlling Chaos, eds. M.A.F. Sanjuan and C. Grebogi. World Scientific Review. (In press Oct 2008).
•
Flasar, F. M., K. H. Baines, M. K. Bird, T. Tokano and R. A. West. 2009. Atmospheric Dynamics and Meteorology. A chapter in the book book Titan from
Cassini Huygens. Springer-Verlag. R. Brown et al. Eds. (Went to press May 2009)
•
Fouchet, T., J. I. Moses, B. J. Conrath and R. West. 2009. Saturn: Composition and Chemistry. A chapter in the book Saturn After Cassini-Huygens.
Springer-Verlag. M. Dougherty et al. Eds. (Went to press May 2009)
•
Hansen, C. J. ,H. Waite, S. Bolton. Titan in the Cassini / Huygens Extended Mission. 2009. A chapter in the book Titan from Cassini Huygens. SpringerVerlag. (Went to press May 2009)
•
Jaumann, R., R. Clark, Fr. Nimmo , T. Denk, A. Hendrix, B. Buratti, J. Moore, P. Schenk, S.Ostro and R.Srama. 2009. Icy Satellites: Geological
Evolution and Surface Processes. A chapter in the book Saturn After Cassini-Huygens. Springer-Verlag. (Not submitted yet per Amanda 10/3)
•
Mauk, B.H., J. Cuzzi, D. Hamilton, T. Hill, G. Hospodarsky, R. Johnson, C. Paranicas, E. Roussos, C. Russell, D. Shemansky, E. Sittler,R. Thorne. 2009.
Fundamental Plasma Processes in Saturn’s Magnetosphere. A chapter in the book Saturn After Cassini-Huygens. Springer-Verlag. (Submitted Sept.
2008)
Continued…
Quarterly
8
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UVIS: Publications (In Press)
Continued from previous page:
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McGrath, M., C. J. Hansen, A. R. Hendrix. 2009. Observations of Europa’s tenuous atmosphere, Europa, eds. R. Pappalardo, W. McKinnon, and K.
Khurana, University of Arizona Press Space Science Series (In press June 2009).
•
Melin, H., D. E. Shemansky, and X. Liu, 2009, The distribution of hydrogen and atomic oxygen in the magnetosphere of Saturn, Planet. Space Sci.,
doi:10.1016/j.pss.2009.04.014 (In press April 21, 2009)
•
Nagy, Andrew F., A. J. Kliore, M. Mendillo, S. Miller, L. Moore, J. I. Moses, I. Muller-Wodarg, D. Shemansky. 2009. Upper Atmosphere and Ionosphere
of Saturn. A chapter in the book Saturn After Cassini-Huygens. Springer-Verlag. (Submitted Sept. 2008)
•
Shemansky, D. E., X. Liu, and H. Melin, 2009, The Saturn Hydrogen Plume, Planet. Space Sci., doi:10.1016/j.pss.2009.05.002 (In Press May 5, 2009)
•
Sittler, E., C. Bertucci, A. Coates, T. Cravens, I. Dandouras, and D. Shemansky. 2009. Energy deposition processes in Titan’s upper atmosphere. A
chapter in the book Titan from Cassini Huygens. Springer-Verlag. (Submitted Sept. 2008)
•
Spencer, J.R., A. C. Barr, L.W. Esposito, P. Helfenstein, A.P. Ingersoll, R. Jaumann, C.P. McKay, F. Nimmo, C.C. Porco, J.H. Waite. 2009. Enceladus:
An Active Cryovolcanic Satellite. A chapter in the book Saturn After Cassini-Huygens. Springer-Verlag. (Submitted Oct. 2009)
•
Tomasko, M. G., and R. A. West. Aerosols in Titan's Atmosphere. 2009. A chapter in the book book Titan from Cassini Huygens. Springer-Verlag. R.
Brown et al. Eds. (Submitted in September 2008)
•
West, R. A., K. H. Baines, E. Karkoschka and A. Sanchez-Lavega. 2009. Clouds and Aerosols in Saturn's Atmopsphere. A chapter in the book Saturn
After Cassini-Huygens. Springer-Verlag. M. Dougherty et al. Eds. (Submitted in September 2008)
Quarterly
9
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UVIS: Publications (Submitted)
•
Albers, N, M. Sremcevic, J.E. Colwell, and L.W. Esposito. 2009. Saturn’s F Ring as seen by Cassini UVIS: Kinematics and Statistics. Icarus.
(Submitted February, 2009)
•
Bradley, E. T., Colwell, J.E., Esposito, L.W., Cuzzi, J.N., Tollerud, H., Chambers, L., 2009. Far Ultraviolet Spectral Properties of Saturn’s Rings from
Cassini UVIS. Icarus - Saturn from Cassini special issue. (Submitted June 9, 2009)
•
Gustin, J, J.M. Ajello, M.H. Stevens, A.W. Stephan, I. Stewart, K. Larsen, L.W. Esposito, W. McClintock. 2009. Titan Airglow Spectra from Cassini
UVIS: III. FUV Limb Analysis. GRL. (Submitted March 25, 2009 per Joe)
•
Hendrix, A. R. Hansen, C.J., Holsclaw, G. M. 2009. The Ultraviolet Reflectance of Enceladus: Implications for Surface Composition. Icarus - Saturn
from Cassini special issue. (Submitted April 17, 2009)
•
Howard, J.E. 2009. Stability of Hamiltonian Equilibria. Scholarpedia. (Submitted in October 2007.) No printed copy, just online.
•
Liang, M. C., A. S. Wong, D. Henze, M. Adamkovics, K. Boering and Y. L.Yung. 2009. Synergistic study of hydrocarbon photochemistry in laboratory
and planetary atmospheres. Planet. Space. Sci., (Submitted Sept. 2008)
•
Liang, M-C. and Y. L. Yung. 2009. Isotopic fractionation of trace molecules in the atmosphere of Titan. ApJ (Submitted in June 2009)
•
Liu, X., A. Heays, D. E. Shemansky, B. R. Lewis and P. D. Feldman. 2009. Analysis of terrestrial-thermospheric N2 c 1S(0)~b’1S(1) - X 1S dayglow
emission observed by the Far Ultraviolet Spectroscopic Explorer, J. Geophys. Res., (Submitted May 12, 2008)
•
Liu, X. P. V. Johnson, C. P. Malone, J. A. Young, D. E. Shemansky, and I. Kanik. 2009. Electron impact excitation and emission cross section of the
B1 and D 1u states and rotational dependence of photodissociation cross sections of the B1 and D 1u continua .J. Phys B, (submitted May 8, 2009)
•
Robbins, S.J., Stewart, G.R., Lewis, M.C., Colwell, J.E., and M. Sremcevic. 2009. Estimating the Masses of Saturn's A and B Rings from High-Optical
Depth N-Body Simulations and Stellar Occultations. Icarus. (Submitted in December 2008)
•
Shemansky, D. E., and X. Liu, 2009, Saturn Upper Atmospheric Structure from Cassini EUV/FUV Occulations, Planet. Space Sci., (Submitted
November, 2008)
Quarterly
10
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UVIS: Science Presentations - 2009
– Cassini Icy Satellites Workshop, June, 2009, London
•
C. J. Hansen, L. Esposito, I. Stewart, A. Hendrix: UVIS Observations of Enceladus’ Plume
•
Hendrix & Hansen: The Surface Compositions of the Icy Saturnian Moons: Clues from the Ultraviolet
– AGU, May 2009, Toronto
•
Hendrix & Hansen: The Surface Composition of Enceladus: Clues from the Ultraviolet
– Enceladus Workshop, June 2009, Leicester, UK,
•
Esposito: Enceladus water jet models from UVIS star occultations.
– Magnetospheres of the Outer Planets (MOP), July 2009, Cologne
•
Quarterly
Pryor: Saturn auroral images and movies from Cassini UVIS"
11
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UVIS: Outreach - 2009
• #: EPO: Talks to school children, teachers and public (May-July 2009)
–
Albers: Saturn's rings through the Eyes of the Cassini Spacecraft, June 02, 2009, Public talk at LASP
–
Esposito: Enceladus & Cassini, June 19, 2009, Public talk at University of Leicester, UK
–
Hendrix: “Enceladus & Europa” public talk at Cal State Northridge, May 8 2009
• #: Press releases (May-July 2009)
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None this quarter
• #: Press conferences & interviews (May-July 2009)
–
–
Interview for Discovery Channel, Yellowstone, June 2009 (Hendrix)
Interview for National Geographic Channel, London, June 2009 (Hendrix)
Quarterly
12
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