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1 Annual Research Report 2018 Jian Annual Research Report 2018 Jian-Yang Li, Senior Scientist I. Report on Research Major accomplishments in 2018: 1. Dawn Mission i. Continued to lead the Photometric Working Group in Dawn Science Team ii. Lead the planning oF ToO observations of Ceres water vapor search to be triggered by solar energetic particle event. No observations was triggered, though. iii. Completed the spectrophotometric analysis and mapping of Ceres with Dawn Framing Camera data. The results are accepted for publication in Icarus. 2. Atacama Large Millimeter-submillimeter Array (ALMA) observations oF Ceres to characterize possible water reservoirs (NASA Solar System Observation research grant) i. Continue the data analysis oF all three epochs oF observations in Cycles 3-5. ii. Started to prepare a publication to report the integrated thermal lightcurves oF Ceres at 1.2 mm, as well as the (negative) results oF HCN search. 3. OSIRIS-REx Mission i. Continue to lead the work in the preparation of photometric analysis during the proximity operations for asteroid Bennu ii. Participated in the data analysis From Approach and Preliminary Survey phases, and the preparation oF the First set oF Nature papers planned to be published in March 2019. 4. Comet 46P/Wirtanen observations i. Lead the planning oF HST imaging program to observe 46P during its close approach to Earth in mid-December. The observations were successFully perFormed. ii. Lead the planning oF HST spectroscopic program to observe 46P in January 2019. 5. Obtained 3 new research grants, published or submitted 7 co-authored papers and 19 conFerence abstracts, led or participated in a total oF 9 proposals For new grants and/or telescope times Other projects that I was actively involved in and made substantial contributions in 2017 include: 1. Supervise postdoc, Xiaoduan Zou, in a project to study the common geological Features on cometary nuclei, and in OSIRIS-Rex 2. PDART project to develop a Python package to support solar system small body sciences 3. PDART project to develop a dataset including all UV data oF solar system small bodies and Mercury, led by Amanda Hendrix (PSI) 4. SMA observations oF Comet 46P/Wirtanen 1 5. Thirty Meter Telescope (TMT) International Science Definition Team (ISDT) For Planetary Sciences 6. Data analysis oF Hayabusa data oF asteroid Itokawa, led by Lucille Le Corre (PSI) 7. Data analysis oF Asteroid Ryugu from Hayabusa2, led by Lucille Le Corre (PSI) II. Publications Peer-reviewed journal articles: 1. Li, J.-Y., et al., 2019. Spectrophotometric modeling and mapping oF Ceres. Icarus, in press. 2. Prettyman, T.H., et al. 2019. Elemental mineralogy oF Vesta and Ceres: Distribution and origins oF hydrated species. Icarus 318, 42-55. 3. Schröder, S.E., Li, J.-Y., et al., 2018. The Ceres opposition eFFect observed by the Dawn Framing Camera. Astron. Astrophys. 620, A201 (19pp) 4. McFadden, L.A., Skillman, D.R., Memarsadeghi, N., Carsenty, U., Schröder, S., Li, J.-Y., et al., 2016. Dawn mission’s search For satellites oF Ceres: Intact protoplanets don’t have satellites. Icarus 316, 191-204. 5. Bu, C., Rodriguez Lopez, G., Dukes, C.A., Ruesch, O., McFadden, L.A., Li, J.-Y., 2018. Search For sulFates on the surFace oF Ceres. Meteorit. Planet. Sci. 53, 1946-1960. 6. Le Corre, L., et al., 2018. Ground-based characterization oF Hayabusa2 mission target Asteroid 162173 Ryugu: Constraining mineralogical composition in preparation for S/C operations. Mon. Rev. R. Astron. Soc. 475, 614-623. 7. Hui, M.-T., Li, J.-Y., 2018. Is the cometary nucleus extraction technique reliable? Publ. Astron. Soc. PaciFic. 130, 992. 8. Belton, M.J.S., Zou, X.-D., Li, J.-Y., Asphaug, E., 2018. On the origin oF internal layers in comet nuclei. Icarus 314, 364-375. ConFerence abstracts and others: 1. Titus, T.N., et al., 2018. Thermal physical properties oF Ceres derived From ALMA observations. AGU Fall Meeting, Washington, DC., December 10-14, 2018. Abstract no. P33D-3859. 2. Le Corre, L., et al., 2018. Comparison oF color maps oF asteroids Ryugu and Bennu From the approach phase oF Hayabusa2 and OSIRIS-REx missions. AGU Fall Meeting, Washington, DC., December 10-14, 2018. Abstract no. P22A-03. 2 3. Hergenrother, C., et al., 2018. OSIRIS-REx approach phase astronomical observations oF asteroid Bennu: Searches For hazards and lightcurve, color and phase Function photometry. AGU Fall Meeting, Washington, DC., December 10-14, 2018. Abstract no. P21A-10. 4. Golish, D., et al., 2018. Photometric modeling of surFace-resolved Bennu images during approach. AGU Fall Meeting, Washington, DC., December 10-14, 2018. Abstract no. P33C-3841. 5. Li, J.-Y., et al., 2018. ALMA thermal mapping oF Ceres: Search For subsurFace water ice. AAS DPS Meeting, Knoxville, TN, October 21-26, 2018. Abstract No. 412.01. 6. Kelley, M.S., Farnham, T., Li, J.-Y., 2018. Kepler lightcurve oF Comet C/2013 A1 (Siding Spring). AAS DPS Meeting, Knoxville, TN, October 21-26, 2018. Abstract No. 210.03. 7. Le Corre, L., Mitchell, A.M., Li, J.-Y., et al., 2018. Color maps oF asteroid Ryugu From ONC- T camera onboard hayabusa2: Correlations between color units and topography to understand its Formation and evolution. AAS DPS Meeting, Knoxville, TN, October 21- 26, 2018. Abstract No. 411.02. 8. Rousselot, P., et al., 2018. Search For water outgassing oF (1) Ceres near its perihelion. European Planetary Science Congress, Berlin, Germany, September 16-21. abstract no. EPSC2018-484. 9. Li, J.-Y., et al., 2018. The opposition eFFect on Ceres observed by the Dawn Framing Cameras. Asia Oceania Geosciences Society 15th Annual Meeting, Honolulu, HI, USA, June 3-8, 2018. Abstract no. PS10-D1-EVE-P-010. 10. Li, J.-Y., et al., 2018. On the origin oF internal layers in Comet 67P/Churyumov- Gerasimenko. Asia Oceania Geosciences Society 15th Annual Meeting, Honolulu, HI, USA, June 3-8, 2018. Abstract no. PS19-D1-EVE-P-018. 11. Belton, M., et al., 2018. On the origin of internal layers in Comet 67P/Churyumov- Gerasimenko. 42nd COSPAR Scientific Assembly, Pasadena, CA, July 14-22, 2018. Abstract id. B1.1-3.18. 12. Schröder, S.E., Li, J.-Y., et al. 2018. The Ceres opposition eFFect observed by the Dawn framing camera. JpGU 2018, Kakuhari Messe, Chiba, Japan, May 20-24. Abstract no. PPS02-01. 13. Asphaug, E., et al., 2018. On the Origin oF Internal Layers in Comet 67P/Churyumov- Gerasimenko. EGU 2018. 14. Belton, M.J.S., Zou, X.-D., Li, J.-Y., Asphaug, E., 2018. On the Origin oF Internal Layers in 67P/ Churyumov-Gerasimenko. 49th Lunar and Planetary Science ConFerence, The Woodlands, TX, March 19-23, 2018. Abstract no. 2966. 3 15. Li, J.-Y., et al., 2018. Laboratory measurement oF the phase Function oF natrite. 49th Lunar and Planetary Science ConFerence, The Woodlands, TX, March 19-23, 2018. Abstract no. 1952. 16. Li, J.-Y., Le Corre, L., Reddy, V., 2018. Hapke modeling oF asteroid (25143) Itokawa using Hayabusa/AMICA data. 49th Lunar and Planetary Science ConFerence, The Woodlands, TX, March 19-23, 2018. Abstract no. 1957. 17. Domingue, D.L., et al., 2018. Toolbox For Research and Exploration (TREX): Investigations oF Fine-grained materials on small bodies. 49th Lunar and Planetary Science ConFerence, The Woodlands, TX, March 19-23, 2018. Abstract no. 1141. 18. Bu, C., et al., 2018. Hydrous salts on planetary surFaces: Laboratory measurements under conditions relevant to Ceres. 49th Lunar and Planetary Science ConFerence, The Woodlands, TX, March 19-23, 2018. Abstract no. 3011. 19. Li, J.-Y., et al., 2018. The Implications oF the Excited Rotation oF Comet 252P/2000 G1 (LINEAR). 231st AAS meeting. III. Awards and Hornors IV. Service to the Science Community • Reviewer for scientiFic journals: Icarus • Panelist reviewer for Planetary Data System Small Bodies Node • External reviewer for NASA SSO, SSW R&A, LDAP, PDART programs • Reviewer for HST DD proposals • Convener or co-convener For Asia Oceania Geosciences Society (AOGS) 2019 Meeting session PS-14 • Thirty Meter Telescope (TMT) International Science DeFinition Team (ISDT) for Planetary Sciences. V. Public Outreach Activities Invited Talks: 1. The Activity of Comet C/2013 A1 (Siding Spring) and the Implications to its Interaction with Martian Atmosphere. School oF Earth and Space Science, University oF Science and Technology oF China, October 25, 2018. Media Coverage: 4 1. Hubble Takes a Close Look at the Brightest Comet of the Year, News Release Number 2018-63, by Space Telescope Science Institute, December 2018. http://hubblesite.org/images/news/release/2018-63. VI. New Grants/Subcontracts and Telescope Times Grants as PI or Co-I: 1. Co-Investigator, “Composition and physical processes oF the inner coma oF Comet 46P/Wirtanen”, PI: Dennis Bodewits (Auburn University), HST Cycle 26 GO, 2018. 2. Co-Investigator, “Improved SPICE Data and Archival oF Cometary Mission Data”, PI: Xiao-Duan Zou (PSI), NASA Planetary Data Archiving, Restoration, and Tools R&A Program, 2018 (3 yrs). 3. Principal Investigator, “Determining the Mineralogical Evolution to Asteroid (145) Adeona through degree oF Aqueous Alteration to Support Dawn Extended Mission”, SOFIA Cycle 6, 2018 (1 yr). Telescope Times: 1. Co-Investigator, “Observing Comet 46P/Wirtanen”, PI: Chunhua Qi (Harvard CFA), SMA. 5 .
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