EDUCATION

Ph.D., University of Arizona, Department of Geosciences, Planetary Geophysics, 1992
M.S., Astronomy (physics minor), New Mexico State University, 1985
B.A., Physics, Rutgers University, NCAS, 1982

WORK EXPERIENCE

August 2001 - Present -Tenured, Assistant Professor of Physics, Co-Chair, New Mexico Highlands University. (Note: Tenure and promotion are not simultaneous processes).

August 1999 - July 2001 - Assistant Professor of Physics, Co-Chair, New Mexico Highlands University.

Teaching duties included a course in introductory Astronomy (for non-science majors), and an Algebra-based Physics class (pre-med and lif science students). Research work centers around: 1) an observational astronomy program to study the collisional history of the Vesta family of asteroids using the Vatican Advanced Technology Telescope, Mt. Graham, AZ, and at Star Hill, Las Dispensas, NM; 2) an astrobiology initiative (in conjunction with Johnson Space Center, and for which I am the Project Manager) to investigate the survivability via impact delivery of bacteria in rock and ice; 3) numerical studies of impacts; 4) NASA-funded multi-university consortium grant to to establish a virtual educational and research environment utilizing modern computer and internet technologies to deliver educational programs to a largely rural population of Native American and Hispanic students; 5) construction of the Magdalena Ridge Observatory (MRO) a multi-university, congressionally-funded, $40,000,000 initiative to build three remotely operable 2.4-meter telescopes. Related research includes conducting a design study for an advanced spectrograph for the observatory.

Service related duties include Chair of the campus Research Committee, on-campus NASA Space Grant Director, member of the Board of Directors for the MRO Consortium, and member of the Faculty Senate Executive Committee.

Teaching duties included a Conceptual Physics class (for non-science majors), and an Algebra-based Physics class (pre-med and lif science students). Additionally, worked on the NSF-funded CETP (Collaborative for Excellence in Teacher Preparation) initiative to promote innovative teaching in science and mathematics.

August 1998  - Present - Affiliated Research Scientist, Planetary Science Institute.

Research involved implemenation of an impact experiment program to study Kuiper Belt Objects (KBOs) and their collisional origins.

Research work included the design and implementation of an experiment program to study impacts and their collisional outcomes under various initial conditions. The goal is to obtain some predictive capability for fragment size and mass-velocity distributions, energy partitioning between target and projectile, and the collisional energy required for catastrophic fragmentation. Theoretical studies of collisions and the fragmentation process were also conducted using a two- dimensional continuum damage numerical hydrocode, modified to include strength effects and the Grady-Kipp fragmentation algorithm. Code predictions were validated at small size-scales by reproducing fragment size distributions from laboratory impact experiments on catastrophic disruption. The hydrocode is then used to determine how collisional outcome depends on target size, providing a better understanding of impact processes in the solar system (e.g., asteroid collisional evolution, planetary accretion, ring system dynamics, etc.).

Additional projects included 1) image processing and analysis as part of the Galileo Mission Project, to study the cratered surface of asteroids Gaspra, Ida, and Dactyl; 2) comet studies: data reduction of infrared photometry of Comet Halley and an analysis of the silicate emission feature; 3) lead scientist in developing education programs involving scientist/educator teams and the use of internet resources; and work as a science mentor to undergraduate students from the NASA Spacegrant Program, and a similar outreach program for high school students.

September 1985 - November 1992 - Research Associate, Planetary Science Institute

(See above).

February - September 1997 - Program Director, Discovery Park's Gov Aker Observatory.

Responsibilities included overseeing the day to day operations of the Observatory facility, assisting in the design, organization, and implementation of programming features and educational projects (including student research projects), and offsetting operations costs through acquisition of externally funded grants for the Observatory .

August - December 1996 - Visiting Professor , New Mexico Highlands University.

Responsibilities included teaching and developing new curriculum materials for an Introductory Astronomy course, and an Earth Science laboratory, refinement of a Geology Major, and directorship of education outreach programs to local schools. An internet mini-course in Environmental Science and Remote Sensing was also outlined and designed.

April - August 1996: Research Scientist , National Optical Astronomy Observatories (NOAO).

Duties included education outreach to middle schools and development of internet curriculum modules in math and science as part of the Project Galileo Education Outreach program (website designed: http://www.jpl.nasa.gov/galileo/sepo/). Organization for publication of a book documenting the cruise portion of the Galileo Spacecraft Mission was also accomplished.

OTHER RESEARCH EXPERIENCE

August 1985 Master's Thesis:

"Interstellar Extinction and the Assumption of Heterogeneous Dust Grains"

Description: The interstellar extinction curve is theoretically modeled assuming heterogeneous particles. Effective medium (for the determination of grain optical properties) and Mie scattering theories are used.

1983-1985 - TA/Research Assistant, Dept. of Astronomy, NMSU

Description: Teaching assistant for astronomy and planetary astronomy courses. Also performed photometric data collection and reduction of Delta Scuti variable stars. Additional research involved the study of Jupiter's cloud morphology using Pioneer and Voyager imaging data. Cloud features were tracked to provide wind vector profiles which are used to determine momentum transport in Jupiter's atmosphere. (Paper given on this topic at the 1983 DPS meeting)

1982-1983 - Teaching Assistant, Department of Physics, NMSU

Description: Laboratory instructor and grader for introductory level physics course

COMPUTER SKILLS

Extensive experience with FORTRAN-77, exposure to C, and familiar with IBM PC-compatibles, MacIntosh computers, SUN-OS (UNIX), and VAX (VMS) computers. Also experienced with WordPerfect, MS WORD, TeX, LaTeX, EXCEL, SIGMAPLOT, IRAF, and VICAR software packages, as well as hypertext markup language (HTML).

PROFESSIONAL MEMBERSHIPS

American Geophysical Union
American Astronomical Society, Division of Planetary Sciences
American Institute of Physics

SERVICE

NASA Senior Review Panel Member, Office of Space Sciences, June 2001.

NASA Discovery Mission Selection Panel Member, November 2000.

Magdalena Ridge Observatory Project, Board of Directors, 2000 - present.

NASA Planetary Astronomy Program Panel Member; MUSES-C Science Team selection, June 1999.

NASA Planetary Astronomy Near Earth Asteroid (NEO) Review Panel, June 2000.

Refereed papers for Icarus, the Journal of Geophysical Research, Nature, and Planetary and Space Science; and reviewed proposals for NASA's Planetary Geology and Geophysics program.

Member of the organizing committee for the 5^th International Workshop on Catastrophic Disruption of Small Bodies in the Solar System, July 1998.

Served as Education Exhibit Coordinator for the AAS's 28th Division for Planetary Science's Meeting , Tucson, October 1996.

AWARDS

Asteroid name and citation: (9542) ERYAN = 1983 TU1

March 1982: Elected to Phi Beta Kappa

Summer 1981: Awarded participation in the Summer Institute on Planets and Climate (Goddard Inst. Space Studies/Columbia Univ.)

MEDIA RELATIONS

December 1996: Television appearance on Sightings "Threat from Space" segment regarding the hazards involved in asteroid impacts on the Earth.

August 1999: NASA TV appearance as outside asteroid specialist for for Deep Space 1 Press Conference.

PUBLICATIONS

Asphaug, E., E.V. Ryan, and P. Thomas (2002). Impact Structures and Asteroid Interiors.In Asteroids III (William Bottke, Alberto Cellino, Paolo Paolicchi, and Richard P. Binzel, eds. Univ. of Arizona Press), In preparation.

Holsapple, K., K. Housen, E.V. Ryan, and I. Giblin (2002). Asteroid Impacts: Laboratory Experiments and Scaling Laws Asteroids III (William Bottke, Alberto Cellino, Paolo Paolicchi, and Richard P. Binzel, eds. Univ. of Arizo na Press), In preparation.

Ryan,W.H., E. Ryan, and C. Martinez (2001). CCD Photometry of the Vesta Family of Asteroids. To be submitted to Icarus.

Ryan, E.V., and D.R. Davis (2001). The Impact Disruption of Cooled Iron Meteorites. To be submitted to Icarus.

Hartmann, W.K., J. Anguita, M. de la Casa, D. Berman, E.V. Ryan (2000). Martian Cratering 7: The Role of Impact Gardening, Icarus 149, 37 - 53.

Ryan, E.V. (2000). Asteroid Fragmentation and Evolution of Asteroids. Ann. Rev. Earth Planet. Sci., 28, 367-389.

Ryan, E.V., D.R. Davis, and I. Giblin (1999). A Laboratory Impact Study of Simulated Edgeworth-Kuiper Belt Objects. Icarus, 142, 56-62.

Hartmann, W.K., P. Farinella, D. Vokrouhlicky, S.J. Weidenschilling, A. Morbidelli, F. Marzari, D. Davis, and E.V. Ryan (1999). Reviewing the Yarkovsky Effect: New Light on the Delivery of Stones and Irons from the Asteroid Belt. Meteoritics & Planetary Science, 34, A161-A167.

Ryan, E.V., and H.J. Melosh (1998). Impact Fragmentation: From the Laboratory to Asteroids. Icarus 133, 1-24.

Melosh, H.J., and E.V. Ryan (1997). Asteroids: Shattered but not Dispersed. Icarus, 129, 562.

Chapman, C.R., E.V. Ryan, W.J. Merline, G. Neukum, R. Wagner, P.C. Thomas, J. Veverka, and R.A. Sullivan (1996). Cratering on Ida. Icarus 120, 77-86.

E.V. Ryan and C.R. Chapman (1996). Spectral Variations on Ida: A Space Weathering Trend? Meteoritics & Planetary Science, 31, A120-A121

Davis, D.R., E.V. Ryan, and P. Farinella (1994). Asteroid Collisional Evolution: Results from Current Scaling Algorithms. Planet. Space Sci. 42, 599-610.

Martelli, G., E.V. Ryan, A.M. Nakamura, and I. Giblin (1994). Catastrophic Disruption Experiments: Recent Results. Planet. Space Sci. 42, 1013-1026.

Benz, W., E. Asphaug, and E.V. Ryan (1994). Numerical Simulations of Catastrophic Disruption: Recent Results. Planet. Space Sci. 42, 1053-1066.

Ryan, E.V. (1992). Catastrophic Collisions: Laboratory Impact Experiments, Hydrocode Simulations, and the Scaling Problem. Ph.D. thesis, University of Arizona: Tucson.

Melosh, H.J., E.V. Ryan, and E. Asphaug (1992). Dynamic Fragmentation in Impacts: Hydrocode Simulation of Laboratory Impacts. Journal of Geophysical Research 97, 14735-14759.

Ryan, E.V., W.K. Hartmann, and D.R. Davis (1991). Impact Experiments 3: Catastrophic Fragmentation of Aggregate Targets and the Relation to Asteroids. Icarus 94, 283-298.

Ryan, E.V., and H. Campins (1991). Comet Halley: Spatial and Temporal Variability of the Silicate Emission Feature. Astronomical Journal 101, 695-705.

Davis, D.R. and E.V. Ryan (1990). On Collisional Disruption: Experimental Results and Scaling Laws. Icarus 83, 156-182.

Fujiwara, A., P. Cerroni, D. Davis, E. Ryan, M. Di Martino, K. Holsapple, and K. Housen (1989). Experiments and Scaling Laws for Catastrophic Collisions. In Asteroids II (R. Binzel, M. Matthews, and T. Gehrels, eds. Univ. of Arizona Press), 240-265.

Campins, H.C. and E.V. Ryan (1989). The Identification of Crystalline Olivine in Cometary Silicates. Astrophys. J. 341, 1059-1066.

ABSTRACTS

E. Asphaug, E. Ryan, M. Zuber (2001) Asteroid Interiors. Asteroids 2001 Meeting, Palermo Italy.

Ryan, W.H., E.V. Ryan, and C. Martinez (2000) An Analysis of the Impact Origin of the Vesta Family of Asteroids. 32nd Meeting of the DPS, Pasadena, CA, BAAS.

Ryan, E.V. (1999). Collisonal Studies of Simulated Edgeworth-Kuiper Belt Objects. Invited Talk, Asteroids, Comets, Meteors (ACM), Cornell University.

Ryan, E.V. (1999). Collisonal Studies of Small Bodies in the Solar System. New Mexico Local Symposium, Socorro, NM.

Ryan, E.V., D.R. Davis, and Ian Giblin (1998). Experimental Studies of the Fragmentation of Simulated Edgeworth-Kuiper Belt Objects. LPSC XXIX .

Ryan, E.V. (1998). Collisonal and Experimental Studies of Edgeworth-Kuiper Belt Objects. The 5th International Workshop on the Catastrophic Disruption of Small Solar System Bodies, Timberline Lodge, Oregon.

William K. Hartmann, Paolo Farinella, Stu Weidenschilling, Eileen Ryan, David Vokrouhlicky, Francesco Marzari, Dominique Spaute, Donald R. Davis (1997). Yarkovsky Effects: Possible Consequences on Meteorites and Asteroids. LPSC XXVIII .

William K. Hartmann and Eileen V. Ryan (1996). Possible Evidence of Yarkovsky Depletion of Debris from the Asteroid Belt and Effects on Asteroid Surfaces. 28th DPS, Tucson, BAAS .

E.V. Ryan and C.R. Chapman (1996). Spectral Variations on Ida: A Space Weathering Trend? Meteoritics, 59th Meteoritical Society Meeting .

E.V. Ryan (1996). Cratering Impacts into Finite Targets: Comparing Experiments, Code Simulations, and Scaling Laws. LPSC XXVII , 1117-1118.

E.V. Ryan and H.J. Melosh (1995). Asteroids: Shattered but not Dispersed. AGU, Suppl. , Vol. 76, p. 336.

The Cratering Record on Ida (1995). C.R. Chapman, E.V. Ryan, and W.J. Merline. 27th DPS, Hawaii, BAAS .

On How to Scale Disruptive Collisions (1995). D.R. Davis and E.V. Ryan. LPSC XXVI, 319-320.

Asteroid Collisions: The Impact Disruption of Cooled Iron Meteorites (1994). E.V. Ryan and D.R. Davis. 26th DPS, Washington, D.C., BAAS 26, 1180.

Energy Partitioning in Catastrophic Collisions (1994). E.V. Ryan. and D.R. Davis. LPSC XXV, 1175-1176.

Hydrocode Simulations and Scaling (1993). E.V. Ryan. The 4th International Workshop on the Catastrophic Disruption of Small Solar System Bodies, Gubbio, Italy.

Laboratory Impact Experiments (1993). E.V. Ryan. The 4th International Workshop on the Catastrophic Disruption of Small Solar System Bodies, Gubbio, Italy.

Asteroid Collisional Studies: Results Using Scaling Laws from Hydrocode Models and Dimensional Analysis. (1993). D.R. Davis, E.V. Ryan, and P. Farinella. IAU Symposium No. 160, ACM, Belgirate, Italy.

Ejecting Basaltic Achondrites from Vesta: Hydrodynamical Impact Modes (1993). E. Asphaug, H.J. Melosh, and E.V. Ryan. LPSC XXIV, , 45-46.

Asteroid Collisions: Target Size Effects and Resultant Velocity Distributions (1993). E.V. Ryan. LPSC XXIV, 1227-1228.

Asteroid Collisional Evolution: Results Using New Scaling Algorithms (1993). D.R. Davis, E.V. Ryan, and P. Farinella. 25th DPS-Boulder, BAAS, Vol. 25, No. 3, 1116-1117.

Understanding Asteroid Collisions: The Effect of Target Size on Collisional Outcome (1992). E.V. Ryan and H.J. Melosh. 24th DPS-Munich, BAAS, Vol. 24, No. 3, 961.

Theoretical Predictions for Fragment Size Distributions (1992). E. Asphaug, H.J. Melosh, and E.V. Ryan. LPSC XXIII, 45-46.

Hydrocode Simulation of Explosive Disruption: External Pressure and Gravity (1992). E.V. Ryan, E. Asphaug, and H.J. Melosh. LPSC XXIII, 1193-1194.

A Numerical Laboratory for Fragmentation Studies: Some Insights Into Collisional Processes and Outcomes (1991). E. Asphaug, H.J. Melosh, and E.V. Ryan. LPSC XXII, 37-38.

Laboratory Impact Experiments: Ejecta Velocity Distributions (1991). E.V. Ryan and D.R. Davis. LPSC XXII, 1153-1154.

Hydrocode Predictions of Collisional Outcomes: Effects of Target Size (1991). E.V. Ryan, E. Asphaug, and H.J. Melosh. LPSC XXII, 1155-1156.

Impact Processes in the Solar System: New Understandings Through Numerical Modeling (1991). E. Asphaug, H.J. Melosh, and E.V. Ryan. LPSC XXII, press release.

Rubble Piles Galore: Initial Results from Hydrocode Calculations of Catastrophic Disruption (1991). E. Asphaug, D.R. Davis, and E.V. Ryan. Asteroids, Comets, Meteors 1991, Flagstaff, Arizona.

Regolith Ejection from Asteroids (1990). E. Asphaug, E.V. Ryan, and H.J. Melosh. IAU Dust Colloquium #126, Kyoto, Japan, 129.

Continuum Modeling of Catastrophic Collisions. E.V. Ryan, E. Asphaug, and H.J. Melosh (1990). IAU Dust Colloquium #126, Kyoto, Japan, 130.

Two-Dimensional Fragmentation Hydrocode (1990). E. Asphaug, E.V. Ryan, and H.J. Melosh. LPSC XXI, 28-29.

Impact Experiments: Catastrophic Fragmentation of Aggregate Targets (1990). E.V. Ryan, D.R. Davis, and W.K. Hartmann. LPSC XXI, 1055-1056.

Collisional Disruption Experiments: Impact Strength Analysis and Velocity Distributions (1989). E.V. Ryan and D.R. Davis. LPSC XX, 932-933.

Identification of Crystalline Silicates in Cometary Dust (1988). H. Campins and E.V. Ryan. 172nd Meeting of the AAS, Kansas City, Missouri, Bulletin of the AAS.

Application of New Scaling Laws of Collisional Outcomes (1987). D.R. Davis and E.V. Ryan. 19th DPS-Pasadena, Bulletin of the American Astronomical Society, Vol. 19, No. 3, 892.

The Structure of the Silicate Emission in Comet Halley (1987). H. Campins and E.V. Ryan. 19th DPS-Pasadena, Bulletin of the American Astronomical Society, Vol. 19, No. 3, 868.

Laboratory Experiments on Catastrophic Disruption (1987). E.V. Ryan and D.R. Davis. Second International Workshop on Catastrophic Disruption of Small Solar System Bodies, Belgrade, Yugoslavia.