Science - Asteroids, Comets & Satellites: People: Amanda Hendrix

Ultraviolet Spectroscopy of Planetary Surfaces
Ultraviolet spectroscopy is an important probe into the chemical and structural characteristics of planetary surfaces. This is an opportunity to work with ultraviolet data of the icy moons of Jupiter and Saturn, from the Galileo and/or Cassini missions. We are working on projects to interpret the wealth of data from these two missions. The research program focuses on understanding surface composition, by analyzing the UV reflectance spectra of the moons, and probing surface structure, by investigating solar phase curve variations.

Cassini-Huygens
The Cassini-Huygens spacecraft is currently exploring the ringed planet, its mysterious moons, the stunning rings and its complex magnetic environment.

LRO - Lunar Reconnaissance Orbiter
The Lunar Reconnaissance Orbiter (LRO) will la launch in late 2008 with the objectives to finding safe moon landing sites, locate potential resources, characterize the radiation environment, and demonstrate new technology.

Jet Propulsion Laboratory (2000-present)
- LRO/LAMP Participating Scientist (2008 - Present)
- Europa Orbiter of the Jupiter Joint Science Definition Team (2008)
- Jovian System Orbiter Science Definition Team (2007)
- Science Planning Engineer + UVIS Deputy Investigation Scientist - Cassini mission to Saturn
Cassini UVIS team member (1999-present)
Co-investigator, Galileo Ultraviolet Spectrometer Experiment (1997-2003)
Astrophysical and Planetary Sciences Dept., U. of Colorado - Lecturer (1999)
- "Astronomy of the Solar System"
- "Planets, Moons and Rings"
Laboratory for Atmospheric and Space Physics, U. of Colorado - Postdoctoral Research Associate (1996-2000)
Fellow, NASA-ASEE Summer Faculty Program - Johnson Space Center, Earth Science and Solar System Exploration Div. (1999)

Lew Allen Award for Outstanding Research (2006)

Hendrix, A. R. and R. E. Johnson, "Callisto: New insights from Galileo disk-resolved UV measurements" ApJ, 687: 706, 2008
Hendrix, A. R. and C. J.Hansen, "The Albedo Dichotomy of Iapetus Measured at UV Wavelengths," Icarus 193: 344-351, 2008.
Hendrix, A. R. and C. J. Hansen, "Ultraviolet Observations of Phoebe from Cassini UVIS," Icarus 193: 323-333, 2008.
Cruikshank et al., "Surface composition of Hyperion," Nature 448, 54-56, 2007.
Hendrix, A. R., R. M. Nelson, D. L. Domingue, "The Solar System at Ultraviolet Wavelengths," in Encyclopedia of the Solar System 2nd ed., 2006.
Hendrix, Amanda and Candice Hansen, "Ultraviolet Observations of Phoebe from Cassini UVIS," accepted to Icarus, 2007.
Hendrix, Amanda and Faith Vilas, "The Effects of Space Weathering at UV Wavelengths: S-Class Asteroids," Astron J. 132, 1396-1404, 2006.
Hansen, C. J., L. W. Esposito, A. R. Hendrix, R. A. West, A. I. F. Stewart, D. E. Shemansky, W. E. Pryor, "Enceladus' Water Vapor Plume," Science 311, 1422-1425, 2006.
Hendrix, A. R. and J. I. Lunine, "Cassini's Cornucopia of Moons: 7 Satellites in 7 Months at Saturn," The Planetary Report, May-June 2005.
Hansen, C. J., D. E. Shemansky, A. R. Hendrix, "Cassini UVIS Observations of Europas Oxygen Atmosphere and Torus," Icarus 176: 305-315, 2005.
Esposito, L.W., J. E. Colwell, K. Larsen, W. E. McClintock, A. I. F. Stewart, J. Tew Hallett. D. E. Shemansky, J. M. Ajello, C. J. Hansen, A. R. Hendrix, R. A. West, H. U. Keller, A. Korth, W. R. Pryor. R. Reulke, Y. L. Yung. "Ultra-Violet Imaging Spectroscopy shows an active Saturn system." Science. 307, 1251-1255, 2005.
Hendrix, A. R., D. L. Domingue, K. King, "The Icy Galilean Satellites: Ultraviolet Phase Curve Analysis," Icarus 173: 29-49, 2005.
Domingue, D. L. and Hendrix, A. R., "A Search for Temporal Variability in the Surface Chemistry of the icy Galilean Satellites," Icarus 173: 50-65, 2005.
Hendrix, A. R., F. Vilas, M. C. Festou, "Vesta's UV Lightcurve: Hemispheric Variation in Brightness and Spectral Reversal," Icarus 162: 1-9, 2003.
Herbert, F., Schneider, N. M., Hendrix, A. R., Bagenal, F., "Hubble Space Telescope observations of sulfur ions in the Io plasma torus: New constraints on the plasma distribution," J. Geophys. Res. 108, 2003.
Hendrix, A. R., C. A. Barth, C. W. Hord, "Io's Patchy SO2 Atmosphere as Measured by the Galileo Ultraviolet Spectrometer," J. Geophys. Res. 104: 11817-11826, 1999.
Hendrix, A. R., C. A. Barth, C. W. Hord, "Ganymede's Ozone-Like Absorber: Observations by the Galileo Ultraviolet Spectrometer," J. Geophys. Res. 104: 14169-14178, 1999.
Carlson, R. W., M. S. Anderson, R. E. Johnson, W. D. Smythe, A. R. Hendrix, C. A. Barth, L. A. Soderblom, G. B. Hansen, T. B. McCord, J. B. Dalton, R. N. Clark, J. H. Shirley, A. C. Ocampo, D. L. Matson, "Hydrogen Peroxide on the Surface of Europa," Science 283: 2062-2064, 1999.
Hendrix, A. R., C. A. Barth, C. W. Hord, A. L. Lane, "Europa: Disk-Resolved Ultraviolet Measurements using the Galileo Ultraviolet Spectrometer," Icarus 135: 79-84, 1998.