NASA Quarterly
UVIS
Q2 - 2013
(Feb – Apr 2013)
Quarterly
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UVIS: Science Highlights
Analysis of the properties of tholins in the upper atmosphere of Titan shows clear evidence for the
presence of tholins.
UVIS spectrum of Titan. The dark line corresponds to observations of the atmosphere higher up, around
1000 to 1200 km, while the orange one is from lower down, around 600 km. The latter shows evidence for
the scattering from tholins longward of 1700 A. (Yung)
Quarterly
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UVIS: Accomplishments
• Publications
– Published this quarter
– In press (Went into press Feb – Apr 2013, also includes still in press from earlier quarters)
– Submitted (Submitted Feb – Apr 2013, also includes submitted earlier and still in review)
– Published 2013 to date (since Nov. 2012)
– Published entire mission
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7
5
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157
• Presentations at scientific conferences (Feb-Apr 2013)
–
–
–
1 presentation at the AAAS in Boston, MA, Feb. 15 (Hendrix)
2 presentation at the LPSC The Woodlands, Texas, March 18-22, 2013 (Esposito, Royer)
1 presentations at EGU, Vienna, Austria, April 7-12, 2013 (Esposito)
• Public Outreach and Press Activities (Feb – Apr 2013)
–
–
–
Quarterly
0: public talks
0 : press releases
0: press conferences (phone interviews)
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UVIS: Plans
– Science Plans (May – Jul 2013)
•
Bradley: Continue investigation of ring particle albedo
•
Bradley: Compare Saturn ring spectra with Saturn icy moon spectra
•
Colwell: Paper on faint and narrow rings is in production (student Bryce Bolin is lead author).
•
Colwell: Paper on occultation statistics is in production (Colwell lead author).
•
Colwell: New paper on self-gravity wakes is in preparation (Colwell or Jerousek lead author).
•
Colwell: Submit new and updated occultation data sets to the Planetary Data System. [still pending per Josh]
•
Colwell: Paper on analysis of Rev 9 solar occ diffraction signal from F ring is in preparation (student Becker is lead
author).
•
Hendrix: Analysis of UVIS data from the Rhea-4 flyby which took place on March 9. Intercomparing the R4 data with data
from earlier flybys.
•
Yung: UVIS spectra will be analyzed using a scattering radiative transfer code, including the spherical geometry involved
in the Cassini observations. The gaseous absorptions used in the radiative model will be taken from previous papers by
this group.
– Publications (May – Jul 2013) In preparation (includes submitted, but not yet published)
Quarterly
•
1 paper in press in an AGU monograph on the auroras
•
1 paper in review in Astron. J
•
2 papers in review and 1 in press in GRL
•
1 paper in press in Icarus
•
1 paper in press in JGR
•
1 paper in press in J. Mol. Spectrosc.
•
2 papers in review and 1 in press in Planet. Space Sci.
•
1 chapter in press in the book Titan: Surface, Atmosphere and Magnetosphere
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UVIS: Plans
Continued from last page
–Upcoming presentations at scientific conferences (May – Jul 2013)
•
1 presentation at Davos Atmosphere and Cryosphere Assembly DACA-13, Davos, Switzerland, July
8-12, 2013 (Esposito)
–Public Outreach and Press Activities (May – Jul 2013)
Quarterly
•
0: public talks
•
0: press releases
•
0: press conference (phone interview)
5
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Backup Material
Quarterly
6
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UVIS: Publications - 2013
•
Ajello, J.M, West, R.A., J. Gustin, K. Larsen, A.I.F. Stewart, L.W. Esposito, W.E. McClintock, G.M. Holsclaw, E.T.
Bradley. 2012. Cassini UVIS Observations of Titan Nightglow Spectra. JGR. VOL. 117, A12315,
doi:10.1029/2012JA017888. (Published 12/22/12)
•
Brilliantov, N.V., N. Albers, F. Spahn, T. Pöschel. 2013. Erratum: Collision dynamics of granular particles with
adhesion [Phys. Rev. E 76, 051302 (2007)]. Phys. Rev. E 87, 039904(E), doi:10.1103/PhysRevE.87.039904
(Published March 2013)
•
Gérard, J.C., Gustin, J., Pryor, W.R., Grodent, D., Bonfond, B., Radioti, A., Gladstone, R.G., Clarke, J.T., Nichols,
J.D., 2013. Remote sensing of the energy of auroral electrons in Saturn’s atmosphere: Hubble and Cassini
spectral observations. Icarus, Vol. 223, Issue 1, 211–221. (Published March 2013.)
•
Hendrix, A. R., T. A. Cassidy, B.J. Buratti, C. Paranicas, C. J. Hansen, B.D. Teolis, E. Roussos, P.Kollmann, T.
Bradley, R. Johnson. 2012. Mimas’ Far-UV Albedo: Spatial Variations. Icarus. Icarus, 220 (2012) 922–931
(Published online July 2012, but found out April 2013.)
•
Hubert, B. ., J.-C. Gérard, J. Gustin, D.V. Bisikalo, V.I. Shematovich and R.G. Gladstone. 2012. Cassini-UVIS
observation of dayglow FUV emissions of carbon in the thermosphere of Venus. Icarus. Volume 220, Issue 2, p.
635-646, doi: 10.1016/j.icarus.2012.06.002 (Published August 2012. Didn’t know in time for previous report).
Quarterly
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UVIS: Publications (In Press)
•
Badman, S. V., A. Masters, H. Hasegawa, M. Fujimoto, A. Radioti, D. Grodent, N. Sergis, M. K. Dougherty, and A.
J. Coates. 2013. Bursty magnetic reconnection at Saturn's magnetopause, Geophys. Res. Lett. (Accepted January
2013)
•
Bradley, E.T., J.E. Colwell, L.W. Esposito, 2012. Scattering properties of Saturn’s rings from Cassini UVIS
spectra. Icarus. (Accepted April 8, 3013)
•
Gurnett, D. and W. Pryor. 2012. Auroral Processes Associated with Saturn's Moon Enceladus. For inclusion in an
AGU monograph on the auroras. (Accepted spring 2012)
•
Gustin, J. , J.C. Gerard, D. Grodent, G.R. Gladstone, J.T. Clarke, W.R. Pryor, V. Dols, B. Bonfond, A. Radioti, L.
Lamy, J.M. Ajello. 2012. Effects of methane on giant planet's UV emissions and implications for the auroral
characteristics. J. Mol. Spectrosc. (Accepted. March 29, 2013.)
•
Jackman, C.M., N. Achilleos, S.W.H. Cowley, E.J. Bunce, A. Radioti, D. Grodent, S.V. Badman, M.K. Dougherty,
W. Pryor. 2012. Auroral counterpart of magnetic field dipolarizations in Saturn’s tail. PSS. (Accepted March 2013)
•
Radioti A., E. Roussos, D. Grodent, J.-C. Gérard, N. Krupp, D. G. Mitchell, J. Gustin, B. Bonfond, and W. Pryor,
Signatures of magnetospheric injections in Saturn's aurora, in press, JGR. (Accepted January 2013)
•
West, R., P. Lavvas, C. Anderson, and H. Imanaka. 2012. Titan Haze. A chapter in Titan: Surface, Atmosphere
and Magnetosphere. Eds. I. Mueller-Wodarg, C. Griffith, T. Cravens and E. Lellouch. Cambridge University Press
[Cambridge Planetary Science Series]. (Accepted March 1, 2012)
Quarterly
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UVIS: Publications (Submitted)
•
Baillié, K., Colwell, J. E., Esposito, L. W. 2012. Meter-sized moonlet population in Saturn’s C ring and Cassini
Division. Astron. J. (Submitted July 2012)
•
Carbary, J., D. Mitchell, and W. Pryor. 2012. Correlation of Saturn's Ultraviolet Aurora with Energetic Neutral
Atoms. GRL. (Submitted June 28, 2012)
•
Kammer, J.A., Shemansky, D.E., Zhang, X., Yung, Y.L. 2013. Composition of Titan's Upper Atmosphere from
Cassini UVIS EUV Stellar Occultations. Planet. Space Sci. (Submitted Nov. 2012.)
•
Li, C., X. Zhang, M.-C. Liang, Y.L. Yung. 2013. Eddy Diffusion Profile of Titan's Atmosphere Revealed by Cassini
Observations. Planet. Space Sci. (Submitted Nov. 2012.)
•
Radioti, A., D. Grodent, J.-C. Gérard, B. Bonfond, and W. Pryor. 2013. Auroral signatures of multiple
magnetopause reconnection at Saturn, GRL (Submitted March 2013)
Quarterly
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UVIS: Science Presentations – Q2-2013 (Feb - Apr)
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AAAS in Boston, MA, Feb. 15, 2013
•
–
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Hendrix: "Titan, Enceladus and the Other Moons of Saturn .
LPSC, The Woodlands, TX, March 18-22, 2013
•
Esposito: “Predator-Prey Model for Haloes in Saturn’s Rings”
•
Emilie Royer: "How do Mimas, Tethys and Dione interact with the E ring of Saturn ? An analysis of their
far-ultraviolet phase curves,”
EGU, Vienna, Austria, April 7-12, 2013
•
Quarterly
Esposito: “Predator-Prey model for haloes in Saturn’s A ring”
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UVIS: Outreach – Q2-2013 (Feb – Apr 2013)
•
EPO: Talks to school children, teachers and public
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•
Press releases
–
•
None this quarter
None this quarter
Press conferences & interviews
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None this quarter
Quarterly
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