NASA Quarterly
UVIS
Q3 - 2011
(May - July 2011)
Quarterly
1
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UVIS: Accomplishments
•
Science Highlights
–
Colwell: Analyzed ring occultation statistics and found differences in particle populations between the C ring
and the C ring plateaus.
–
Hansen published GRL paper parallel to CDA Nature paper:
Hansen, C. J., D. E. Shemansky, L. W. Esposito, A. I. F. Stewart, B. R. Lewis, J. E. Colwell, A. R. Hendrix,
R. A. West. 2011. The Composition and Structure of the Enceladus Plume. GRL. 38, L11202,
doi:10.1029/2011GL047415. (Published 6/9/11)
Quarterly
2
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UVIS: Science Highlights
Brightest auroral emissions seen by UVIS are at times of enhanced RPWS.
Quarterly
3
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UVIS: Accomplishments
• Publications
–
Published this quarter
2
–
In press (Went into press May-Jul and also includes still in press from earlier quarters)
5
–
Submitted (Submitted May-Jul and also includes submitted earlier and still in review)
8
–
Published 2011 to date
11
– Published entire mission
130
• Presentations at scientific conferences (May - Jul 2011)
–
1 paper at the Enceladus Focus Group, Mountain View, CA (Esposito)
–
1 paper at the PSG, June 2011, ESTEC, The Netherlands (Colwell)
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3 papers at Icy Satellite Workshop, June 2011, Noordwijk Netherlands (Hansen, Hendrix [2])
–
1 paper at Magnetospheres of the Outer Planets, July 2011, Boston, MA (Hendrix)
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12 papers at the Rings Workshop in Ithaca, NY, July 2011 (Albers [2], Bradley, Baillie, Colwell [4], Esposito,
Meinke, Stewart, Sremcevic)
• Public Outreach and Press Activities (May - Jul 2011)
–
0: public talks
–
2: press releases
–
1: press conferences (phone, TV interviews)
Quarterly
4
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UVIS: Theses Completed
•
Kevin Baillié, “Fine-scale structure in Saturn’s rings: Waves, wakes and ghosts”, University of Central Florida,
Dept. of Physics (Planetary Sciences Track), defense date: July 7, 2011
Quarterly
5
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UVIS: Plans
– Science Plans (Aug - Oct 2011)
•
Bradley: Continue investigation of ring particle albedo in the FUV
•
Bradley: Design observations for rings spectroscopy in the FUV during available times determined with the Cassini rings
working group.
•
Colwell: Write paper on occultation statistics
•
Colwell: Write paper on updated self-gravity wakes model and fit to data
– Publications (Aug - Oct 2011) — In preparation (includes submitted, but not yet published)
•
1 paper in review in Astrophys. J.
•
1 paper in press at GRL.
•
1 paper in press in the proceedings book of the IAU Symposium 263
•
1 paper in press and 5 papers in review in Icarus
•
2 papers in press and 1 in review at JGR
•
1 papers in review in Planet. Space. Sci.
13
– Upcoming presentations at scientific conferences (Aug - Oct 2011)
•
6 papers at EPSC/DPS 2011, Nantes, France, October 2011 (Albers, Yung, Colwell [3], West, Esposito)
– Public Outreach and Press Activities (Aug - Oct 2011)
Quarterly
•
0: public talks
•
2: press releases
•
1: press conferences (phone interviews)
6
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Backup Material
Quarterly
7
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UVIS: Publications - 2011
•
Ajello, J.M., R.S. Mangina, R.R. Meier. 2010. UV Molecular Spectroscopy from Electron Impact for Applications to Planetary
Atmospheres and Astrophysics. Eds., Y. Hatano, Y. Katsumura, and A. Mozumder, In Charged Particle and Photon Interactions with
Matter, Recent Advances, Applications, and Interfaces, Taylor & Francis, Boca Raton. (Published December 13, 2010 but missed Q1
report)
•
Colwell, J. E., L. W. Esposito, R. G. Jerousek, M. Sremcevic, D. Pettis, and E. T. Bradley. 2010. Cassini UVIS Stellar Occultations of
Saturn’s Rings. Astron. J. Volume 140, Issue 6, pp. 1569-1578. (published 12/10)
•
Croteau, P., J. B. Randazzo, O. Kostko, M. Ahmed, M.-C. Liang, Y. L. Yung, and K. A. Boering (2011). Measurements of isotope effects
in the photoionization of N2 and implications for Titan’s atmosphere, Astrophys. J. Lett. 728 L32. doi:10.1088/2041-8205/728/2/L32
(published February 2011)
•
Elliott, J.P. and L.W. Esposito. 2010. Regolith Depth Growth on an Icy Body Orbiting Saturn and Evolution of Bidirectional Reflectance
due to Surface Composition Changes. Icarus. (Published 12/2010)
•
Gerard, J.-C., B. Hubert, J. Gustin, V. I. Shematovich, D. Bisikalo, L. Esposito, A.I. Stewart, 2010. EUV spectroscopy of the Venus
dayglow with UVIS on Cassini. Icarus (In press Sept. 2010)
•
Hansen, C. J., D. E. Shemansky, L. W. Esposito, A. I. F. Stewart, B. R. Lewis, J. E. Colwell, A. R. Hendrix, R. A. West. 2011. The
Composition and Structure of the Enceladus Plume. GRL. 38, L11202, doi:10.1029/2011GL047415. (Published 6/9/11)
•
Hedelt, P., Ito, Y., Keller, H.U., Lammer, H., Rauer, H., Reulke, R., Wurz, P., Esposito, L. 2010. Titan’s atomic hydrogen corona. Icarus,
Volume 210, Issue 1, p. 424-435 (Published 11/2010)
•
Pryor W.R., A.M. Rymer, D.G. Mitchell, T.W. Hill, D.T. Young, J. Saur, G.H. Jones, S. Jacobsen, S.W.H. Cowley, B.H. Mauk, A.J.
Coates, J. Gustin, D. Grodent, J.-C. Gerard, L. Lamy, J. D. Nichols, S.M. Krimigis, L.W. Esposito, M.K. Dougherty, A.. Jouchoux, A.I.F.
Stewart, W.E. McClintock, G.M. Holsclaw, J.M. Ajello, J.E. Colwell, A.R. Hendrix, F.J. Crary, J.T. Clarke, X. Zhou. 2011. The Enceladus
auroral footprint at Saturn. Nature. (To be published in the Apr 21 issue, but missed Q1 report)
•
Stevens, M.H., J. Gustin, J.M. Ajello, J.S. Evans, R.R. Meier, A. J. Kochenash, A.W. Stephan, A.I.F. Stewart, L.W. Esposito, W.E.
McClintock, G. Holsclaw, E. T. Bradley, B.R. Lewis. 2010. The Production of Titan’s Far Ultraviolet Nitrogen Airglow. JGR. 116, A05304.
(Published May 5, 2011)
Continued next page…
Quarterly
8
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UVIS: Publications - 2011
•
Xu, F, A. B. Davis, R. A. West and L. W. Esposito. 2011. Markov chain formalism for polarized light transfer in plane-parallel
atmospheres, with numerical comparison to the Monte Carlo method. Optical Express. (In press Dec. 20, 2010)
•
Zhang X., Ajello, J.M., and Yung, Y.L.,. 2009. Atomic carbon in the upper atmosphere of Titan. Astrophysical Journal Letters. 708, 1,
L18-L21. (Published 2010, but missed Q1 report.)
Quarterly
9
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UVIS: Publications (In Press)
•
Ajello, J.M, R. S. Mangina, D. J. Strickland, D. Dziczek. 2010. Laboratory studies of UV emissions from proton impact on N2: The
Lyman-Birge-Hopfield Band System for aurora analysis. JGR. (Accepted January 2011.)
•
Hendrix, A.R. and C. J. Hansen. 2010. The Surface Composition of Enceladus: Clues from the Ultraviolet. Proceedings book of the IAU
Symposium 263. DOI: 10.1017/S1743921310001626 (In press Dec. 2009, (Published online: 06 Apr 2010)
•
Baillie, K., J. E. Colwell, J. J. Lissauer, L. W. Esposito, M. Sremcevic 2011. Waves in Cassini UVIS Stellar Occultations 2. Waves in the C
Ring. Icarus. doi: 10.1016/j.icarus.2011.05.019. in preparation, anticipated submission in October 2010, (went into review Dec. 2010)
•
Gerard, J.-C., J. Gustin, B, Hubert, G.R. Gladstone and L.W. Esposito. 2011. Measurements of the Helium 584‐ﾅ airglow during the
Cassini flyby of Venus. Planetary Space Sci. (Accepted on July 1, 2011)
•
Grodent, D., J. Gustin, J.-C. Gerard, A. Radioti, B. Bonfond, and W. Pryor, Small scale structures in Saturn's ultraviolet aurora, J.
Geophys. Res., doi:10.1029/2011JA016818, in press. (accepted to JGR. - don’t know all authors or date accepted, email to Wayne 7/5.
doi:10.1029/2011JA016818 (in press June 28 2011)
Quarterly
10
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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)
•
Esposito, L.W.E., Albers, N., Meinke, B.K., Sremcevic, M., Colwell, J.E. 2010. Moon-triggered Clumping in Saturn’s Rings. Icarus.
(Submitted October 2, 2009)
•
Hendrix, A. R., T. A. Cassidy, C. Paranicas, C. J. Hansen 2011. The Albedo Pattern of Mimas as measured by Cassini UVIS. Icarus.
(anticipating submission April 2011).
•
Jerousek, R. G., Colwell, J. E., Esposito, L. W. 2010. Morphology and Variability of Sharp Edges in Saturn's Rings. Icarus (submitted April
7, 2011, resubmitted July 15, 2011).
•
Liang, M. C., A. S. Wong, D. Henze, M. Adamkovics, K. Boering and Y. L. Yung. (2011). Synergistic study of hydrocarbon photochemistry
in the laboratory and the atmosphere of Titan, Astrophys. J. (In Revision.)
•
Meinke, B.K., L. W Esposito, N. Albers, M. Sremcevic, C. Murray. 2011. Classification of F ring features observed in Cassini UVIS
occultations. Icarus. (Submitted February 2011)
•
Melin, H., T. Stallard, S. Miller, J. Gustin, M. Galand, S.V. Badman, W. Pryor, J. O'Donoghue, R. H. Brown, and K. H. Baines.
Simultaneous Cassini VIMS and UVIS observations of Saturn’s southern aurora—comparing emissions from H, H2, and H3+ at a high
spatial resolution GRL. (submitted June 2011)
•
Radioti, A., D. Grodent, J.-C. Gerard, S. E. Milan, B. Bonfond, J. Gustin, and W. Pryor, 2011, Bifurcations of the main auroral ring at
Saturn: ionospheric signatures of consecutive reconnection events at the magnetopause . JGR. (Submitted March 16, 2011)
Quarterly
11
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UVIS: Science Presentations - Q3-2011 (May - Jul 2011)
–
Enceladus Focus Group, May 2011, Mountain View, CA
•
–
PSG, June 2011, ESTEC, The Netherlands
•
–
–
Colwell: Extracting information on Saturn’s rings from occultation statistics
Icy Satellite Workshop, June 2011, Noordwijk Netherlands
•
Hansen: Enceladus’ Jets
•
Hendrix: Mimas & Tethys: plasma-icy surface interations
•
Hendrix: UV Properites of the Icy Satellites of Saturn
Magnetospheres of the Outer Planets, July 2011, Boston, MA
•
–
Esposito: The Composition and Structure of Enceladus’ Plume from the Cassini UVIS Solar Occultation
Hendrix: Plasma- ‐Surface Interactions at the Icy Saturnian Moons: UV Surface Effects
Rings 2011 Scientific Workshop, July, 2011, Cornell University - Ithaca, NY
Quarterly
•
Albers: The Structure of the Saturnian F ring: Observations and Modeling
•
Albers: The B ring edge: Impressions from Voyager ISS and Cassini UVIS
•
Baillie: Small Propeller Signatures in the C Ring and Cassini Division
•
Bradley: Ring spectroscopy in the FUV.
•
Colwell: Small propeller signatures in the C ring and Cassini Division.
•
Colwell: Constraining size distribution in the F ring.
•
Colwell: Cassini UVIS Observations of Saturn’s Faint, Narrow Ringlets.
•
Colwell: Particle size variations in Saturn’s rings from occultation statistics.
•
Colwell: Revisiting the Self-Gravity wakes granola bar model: More data, more parameters.
•
Esposito: A Post-Equinox View of Saturn’s Rings
•
Meinke: The mass of transient clumps in Saturn's F ring
•
Sremcevic: B ring gray ghosts in Cassini UVIS occultations
•
Stewart: Self-Gravity Wakes and the Viscosity of Dense Planetary Rings
12
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UVIS: Outreach - Q3-2011 (May - Jul 2011)
• #: EPO: Talks to school children, teachers and public
–
None this quarter
• #: Press releases
–
Hansen: JPL release - Jun. 22, 201, “Cassini Captures Ocean-like Spray at Saturn Moon“
–
Esposito: CU release - June 22, 2011, “Strongest evidence yet indicates icy Saturn moon hiding saltwater ocean“
• #: Press conferences & interviews
–
Enceladus Focus Group, Interview with Richard Kerr, Science Magazine
Quarterly
13
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