[2017-10-25, 李荐杨 研究员]谷神星—离地球最近的冰态行星?

时间……….....周三, 2017年10月25日, 下午 03:00-04:20 地点…….........物理大楼 北 415 讲座嘉宾….. ..李荐杨 研究员(Planetary Science Institute, USA) 讲座题目…… Ceres - The Nearest Icy Planet from Earth?

讲座摘要:

The discovery of Ceres in 1801 marked the start of a new era in planetary science. A large population of asteroids were discovered since, opening a whole new territory in the Solar System where astronomers are able to directly observe the building blocks of our planetary system. The exploration of Ceres by the Dawn mission will probably start another new era, when a possible icy planet is revealed in the asteroid belt, where we previously considered to be too hot for a large amount of water to exist. With about 1/4 of its mass in water that was liquid in the past and probably even today beneath the surface, Ceres is the largest reservoir of water closest to Earth. Water is a sensitive probe to temperature and pressure and other physical conditions for the formation and evolution of planetesimals, and an important medium for geochemistry. It also has significant implications for habitability. Therefore, the current status and the evolutionary history of water in the solar system, especially in the location between the hot, dry inner solar system and cold, wet outer solar system is the key to understand the formation of our planetary system. Ceres and its history of water certainly mark the entry to this key territory. I will introduce Ceres in the context of asteroid science, present some of the most important findings by Dawn, and discuss the implications for understanding the origin and evolution of solar system.

图-1. 谷神星:太阳系内已知的第33大天体,火木小行星带内的最大矮行星,海王星内完整轨道的唯一矮行星 [图片来源: http://www.crystalinks.com/ceres.html]

图-2. 谷神星表面的成分分布合成图:冰态水、冰态“盐”、岩石等 [图片来源:NASA]

 

讲座嘉宾介绍:

 

 

Jian-Yang Li (李荐扬), Ph.D

 

Senior Scientist

Planetary Science Institute

1700 E. Ft. Lowell, Suite 106

Tucson, AZ 85719

Tel: (571) 488-9999

Email: jyli@psi.edu

 

Experience

Small Bodies Exploration Missions: Co-I of Dawn mission extended phase, science team member of Deep Impact, Deep Impact eXtended Investigation (DIXI), Stardust-NExT, Dawn, and OSIRIS-REx, leading photometry related mission support and scientific analysis, participating in science opportunity identification and study, observing sequence design and planning, ground-based observing campaign.

Photometry of Planetary Surface: Disk-resolved photometric modeling of about ten planetary bodies, including mostly cometary nuclei and asteroids that have been imaged by spacecraft from flybys or rendezvous, as well as Hubble Space Telescope and ground-based imaging data.

Albedo and Photometric Mapping: Surface albedo and color mapping of planetary bodies to study their composition and mineralogy with the goal of understanding their evolution and formation.

Thermophysical Modeling: Spatially resolved thermal physical modeling of Ceres from sub-millimeter interferometer data.

High-Contrast Imaging: High-contrast imaging observations with adaptive optics to search for satellites near asteroids and close companions near stars.

Space-based Interferometry: Studies of the applications of interferometric techniques in planetary sciences, especially for outer solar system objects.

Academic Honors and Awards

NASA Group Achievement Award, MRO Comet Siding Spring Observing Team, 2015, NASA

Letter of recognition for service to NASA’s Comet Siding Spring Observing Campaign from James Green (Director), Planetary Science Division, NASA

NASA Group Achievement Award, Dawn Science Team, 2013, NASA

NASA Group Achievement Award, Dawn Science Operations Team, 2013, NASA

NASA Group Achievement Award, EPOXI Science Team, 2011, NASA

NASA Group Achievement Award, Stardust-NExT Science Team, 2011, NASA

Asteroid 21496 (1998 JQ2) named Lijianyang, 2008, International Astronomical Union

NASA Carl Sagan and Larry Haskin Early Career Fellowship, 2007. Science Mission Directorate, NASA

COSPAR Scientific Assembly 2006 International Travel Grant, 2006. Committee on Space Research

John Wang Academic Excellence Award, 2002. Department of Astronomy, University of Maryland

Education

Ph. D. in Astronomy, University of Maryland College Park, Department of Astronomy, May 2005

M. S. without thesis in Astronomy, University of Maryland College Park, Department of Astronomy, May 2002

B. S. in Physics, University of Science and Technology of China, Department of Physics, June 1999

B. E. in Computer Science double-major, University of Science and Technology of China, Department of Computer Science, June 1999

Positions Held

Senior Scientist – Planetary Science Institute, Tucson, AZ 85719.  May 2015 - present

Research Scientist – Planetary Science Institute, Tucson, AZ 85719.  Feb 2012 – May 2015.

Affiliated Assistant Research Scientist – University of Maryland at College Park, Department of Astronomy.  Jun 2012 – Jun 2014.

Assistant Research Scientist – University of Maryland at College Park, Department of Astronomy.  Jan 2010 – Jun 2012.

Senior Research Associate – Planetary Science Institute.  Supervisor: Mark V. Sykes.  Sep 2009 – Dec 2012.

Research Associate – University of Maryland at College Park, Department of Astronomy. Supervisor: Prof. Michael F. A’Hearn, Dr. Lucy A. McFadden.  June 2005 – Dec 2009.

Graduate Research Assistant – Supervisor: Dr. Lucy A. McFadden, with Dawn Science Team, University of Maryland at College Park, Department of Astronomy, September 2004 – May 2005. Project title: HST high-resolution mapping of asteroid 1 Ceres.

Graduate Research Assistant – Supervisor: Prof. Michael F. A’Hearn, with Deep Impact Science Team, University of Maryland at College Park, Department of Astronomy, January 2002 – May 2005. Project title: Photometry of small bodies.

Graduate Research Assistant – Supervisor: Prof. Andrew S. Wilson, University of Maryland at College Park, Department of Astronomy, May 2001 – August 2001. Project title: The radio loudness of Seyfert galactic nuclei.

Graduate Research Assistant – Supervisor: Prof. J. Patrick Harrington, University of Maryland at College Park, Department of Astronomy, September 2000 – May 2001. Project title: The angular expansion and distance of the planetary nebula BD+30°3639.

Graduate Research Assistant – Supervisor: Prof. Douglas P. Hamilton, University of Maryland at College Park, Department of Astronomy, May 2000 – September 2000. Project title: Planetary migration simulation during the early stage of the solar system formation.

Graduate Teaching Assistant, University of Maryland at College Park, Department of Astronomy, September 1999-December 2001.

Grants

1.Co-Investigator, “Close encounter with Comet 46P/Wirtanen: X-ray tomography of the coma, PI: Dennis Bodewits (UMD), Chandra-HST joint program, 2017 (2 yrs)

2.Co-Investigator, “TREX: Toolbox for Research and Exploration”, PI: Amanda R. Hendrix (PSI), NASA Solar System Exploration Research Virtual Institute (SSERVI), 2016 (5 yrs).

3.Co-Investigator, “The Archive for UV Data of Small Bodies”, PI: Amanda R. Hendrix (PSI), NASA Planetary Data Archiving, Restoration, and Tools R&A Program, 2016 (2 yrs).

4.Co-Investigator, “Comprehensive Analysis of Comet Siding Spring, Before, During, and After Its Mars Encounter”, PI: Tony F. Farnham (UMD), NASA Solar System Working R&A Program, 2015 (3 yrs).

5.Co-Investigator, “Constraining Surface Properties of Asteroid 1999 JU3 using Hayabusa2 Optical Navigation Camera Clear and Color Images”, PI: Lucille Le Corre (PSI), NASA Hayabusa2 Participating Scientist Program, 2015 (5 yrs).

6.Principal Investigator, “Smooth Areas on the Nucleus of Comet 67P/Churyumov-Gerasimenko”, NASA Early Career Fellowship Program 2015, $100k (2yr).

7.Principal Investigator, “Born Small or Gone Small – Determining the Evolutionary State of Comet 252P/LINEAR during its Close Approach to Earth”, HST Cycle 23 GO, 2015, $55k.

8.Co-Investigator, “Far UV spectroscopic measurements of the deuterium abundance of comets”, PI: Dennis Bodewits (UMD), HST Cycle 23 GO, 2015, $12k.

9.Co-Investigator, “Post-Perihelion Imaging Polarimetry of the 67P/Churyumov-Gerasimenko with ACS: Continued Support of the Rosetta Mission”, PI: Dean Hines (STScI), HST Cycle 23 GO, 2015.

10.Principal Investigator, “Probing Subsurface Water Ice Reservoirs on Ceres”, NASA Solar System Observations Program, 2013, $636k (5 yr).

11.Subcontractor, “Study the Photometry and Water Sublimation of Ceres to Support Dawn Mission”, UCLA Dawn Mission, 2014, $146k (3 yrs).

12.Subcontractor, “Contributing to OSIRIS-REx Mission Photometry Working”, Ithaca College, 2014, $500k (6 yr).

13.Subcontractor, “Comet ISON Observing Campaign (CIOC)”, USRA/LPI, 2014, $15k (1 yr).

14.Co-Investigator, “Restoring Dawn Framing Camera Multi-Band Data of Vesta to Full Spatial and Photometric Accuracy”, PI: Lucille Le Corre (PSI), NASA Planetary Data Analysis Program 2013, $1,060k (4 yr).

15.Principal Investigator, “Comet Siding Spring at Mars: Using MRO to Interpret HST Imaging of Comets”, HST Cycle 22 GO, 2014, $114k (1 yr).

16.Co-Investigator, “Imaging Polarimetry of the 67P/Churyumov-Gerasimenko with ACS: Supporting the Rosetta Mission”, PI: Dean Hines (STScI), HST Cycle 22 GO, 2014, $77k (2 yr).

17.Co-Investigator, “The Ultraviolet Spectrum of Ceres”, PI: Amanda Hendrix (PSI), HST Cycle 22 GO, 2014, $78k (2 yr).

18.Co-Investigator, “Ground-based characterization of Ceres ahead of Dawn’s arrival”, PI: Vishnu Reddy (PSI), NASA Planetary Geology and Geophysics Program 2013, $264k (3 yrs).

19.Principal Investigator, “Imaging Comet C/2013 A1 (Siding Spring) to support risk assessment for Mars orbiters during the close Mars encounter”, HST Cycle 21 GO/DD, 2013, $122k (1 yr).

20.Principal Investigator, “A comparative study of geological features on cometary nuclei using relative photometric techniques”, NASA Planetary Mission Data Analysis Program, 2012, $300k (3 yrs).

21.Principal Investigator, “The first pre-perihelion nucleus size measurement of a sungrazing comet, C/2012 S1 (ISON)”, HST Cycle 20 GO/DD, 2013, $73k (1 yr).

22.Co-Investigator, “Searching for satellites of Ceres: Support for the Dawn Mission”, PI: Britney Schmidt (UT-Austin), HST Cycle 21 GO, 2013, $75k (1 yr).

23.Co-Investigator, “Mineralogical mapping of Asteroid Itokawa using Hayabusa AMICA camera multi-spectral and NIRS spectrometer data”, PI: Vishnu Reddy (PSI), NASA Planetary Mission Data Analysis Program 2012, $900k (4 yrs).

24.Co-Investigator, “Analysis of the coma of comet Hartley 2 and its interaction with the nucleus”, PI: Farnham, T.L. (University of Maryland at College Park), NASA Planetary Mission Data Analysis Program, 2011, $575k (3 yr).

25.Collaborator, “Deep Impact HRI-IR temporal characterization of Hartley 2’s surface and coma heterogeneity”, PI: Feaga, L.M. (University of Maryland at College Park), NASA Planetary Mission Data Analysis Program, 2011, $548k (3 yrs).

26.Principal Investigator, “Study the photometry of Vesta to support Dawn”, NASA Dawn at Vesta Participating Scientist Program, 2010, $255k (3yr).

27.Principal Investigator, “Improve the measurement of Vesta’s pole orientation to support Dawn mission”, HST Cycle 17 GO/DD, 2009, $99.4k (2yr).

28.Co-Investigator, “High contrast imaging of dusty white dwarfs”, HST Cycle 16 GO, 2008, PI: Debes, J.H. (STScI), $124k (3 yr).

29.Principal Investigator, “Satellite search for Dawn mission targets, Vesta and Ceres”, HST Cycle 16 GO/DD, 2008, $120.1k (2yr).

30.Principal Investigator, “Characterization of the UV absorption feature in asteroid (1) Ceres”, HST Cycle 16 GO, 2007, $56k (1 yr)

31.Co-Investigator, “Photometric Imaging of Asteroid 2 Pallas”, HST Cycle 16 GO, 2007, PI: Russell, C. T. (University of California at Los Angeles), $35k (2 yrs)

32.Science Principal Investigator and Co-Investigator, “Photometric Studies of Cometary Nuclei”, NASA Discovery Data Analysis Program 2006. Admin PI: A’Hearn, M. F. (UMD), $293k (3 yrs), with additional 1-year funding for Early Career Fellowship $100k.

33.Co-Investigator, “Photometric Mapping of Vesta’s Southern Hemisphere”, PI: McFadden, L. A. (UMD), HST Cycle 15 GO, 2006. $105.2k (2 yrs)+$40.9k suppliment (1 yr)

34.Co-Investigator, “Gas and Dust Imaging: Filter Photometry of Comet Tempel 1’s Coma Pre- and Post- Impact”, PI: McFadden, L. A. (UMD), NASA Discovery Data Analysis Program 2006, $361.8k (3 yrs)

35.Co-Investigator, “Studies of the Near-Nucleus Dust Jets and Coma Morphology in Comets 9P/Tempel 1, 81P/Wild 2 and 19P/Borrelly”, PI: Farnham, T. L. (University of Maryland at College Park), NASA Discovery Data Analysis Program 2006, $233.6k (3 yrs)

36.Collaborator, “Outbursts by comet Tempel 1”, PI: A’Hearn, M. F. (University of Maryland at College Park), NASA Discovery Data Analysis Program 2006, $464.6k (3 yrs)

37.Collaborator, “Analysis of Coordinated Ground-Based Deep Impact Imaging Data”, PI: Meech, K. J. (IfA, UH), NASA Discovery Data Analysis Program 2006, $292.9k (3 yrs)

38.Collaborator, “Extended Spectrum Study of Eros”, PI: Izenberg, N. R. (JHU-APL), NASA Discovery Data Analysis Program 2004.

39.Graduate Researcher, “Spectroscopy and Photometry of Asteroids and Comets Proposal”, PI: McFadden, L. A. (University of Maryland at College Park), NASA Discovery Data Analysis Program 2004, $392k (2 yrs)

Telescope Times

1.Co-Investigator, “Doppler imaging of Ceres”, PI: Paolo Molaro (INAF), TNG proposal AOT36, 20 hrs.

2.Principal Investigator, “Probing Subsurface Water Ice Reservoirs on Ceres: From Winter to Summer”, ALMA Cycle 5, 2017, 9 hrs.

3.Co-Investigator, “Monitoring of Comet 41P for activity trends and outburst”, PI: Dennis Bodewits (UMD), LCOGT 2017, 14 nights total.

4.Co-Investigator, “Probing chemical heterogeneity in the nucleus of a long-period comet”, PI: Chunhua Qi (Harvard), ALMA Cycle 4 DD, 2016, 3.8 hrs.

5.Principal Investigator, “Probing Subsurface Water Ice Reservoirs on Ceres: Below the Diurnal Thermal Skin Depth”, ALMA Cycle 4, 2016, 9 hrs.

6.Co-Investigator, “The primary volatile composition of an “aged” comet”, PI: Qi, C. (Harvard University), ALMA Cycle 4, 2016.

7.Co-Investigator, “The Primary Volatile Composition of a Dynamically New Comet – C/2013 X1 (PanSTARRS)”, PI: Qi, C. (Harvard University), SMA 2016A, 10 hrs.

8.Co-Investigator, “An Extreme Close Up of Comet 252P/LINEAR 12”, PI: Kelley, M.S.P. (University of Maryland College Park), Discovery Channel Telescope 2016A, 2 half nights.

9.Co-Investigator, “Recovery and Characterization of 252P/LINEAR 12”, PI: Kelley, M.S.P. (University of Maryland College Park), Discovery Channel Telescope 2015B, 1 half night.

10.Principal Investigator, “Probing Subsurface Water Ice Reservoirs on Ceres”.  ALMA Cycle 3, 2015, 9 hrs.

11.Principal Investigator, “The First Polarimetric Mapping of Ceres”, NOAO Gemini Observatory 2015A semester, 9.5 hrs.

12.Co-Investigator, “First Optical Polarimetric Imaging of Ceres”, PI: Yang, B. (ESO), ESO VLT 95A, 9.5 hrs.

13.Co-Investigator, “Measuring the Rotation State and Outburst Monitoring of Comet C/Siding Spring during its October 2014 Encounter with Mars”, PI: Throop, H. (PSI), LCOGT semester 2014-10-01 to 2015-03-31.

14.Co-Investigator, “Rotation State of the Mars Flyby Comet: C/2013 A1 (Siding Spring)”, PI: Kelley, M.S.P. (University of Maryland College Park), Kepler 2 GO, Cycle 2, 2014.

15.Co-Investigator, “Chandra Observations of Comet C/2013 A1 (Siding Spring)’s Encounter with Mars”, PI: Lisse, C.M. (JHU/APL), Chandra Cycle 16, 2014, 113 hrs.

16.Co-Investigator, “The Siding Spring Hazard at Mars”, PI: Kelley M.S.P. (University of Maryland College Park), Spitzer DDT, 2014, 2.5 hrs.

17.Co-Investigator, “Search for H2O outgassing and near-UV spectral characterization of main belt asteroids (1) Ceres and (24) Themis”, PI: McKay, A. (New Mexico State University), Apoch Point Observatory, 2013, 4 half nights.

18.Co-Investigator, “Spitzer characterization of coma and nucleus of Comet C/2012 S1 (ISON)”, PI: Lisse, C.M. (JHU-APL), Spitzer Cycle 9 DDT, 2013.

19.Co-Investigator, “Characterizing space weathering on Asteroid (596) Scheila”, PI: Kelley, M.S. (University of Maryland at College Park), NASA IRTF 2012b. 

20.Co-Investigator, “A Swift spectroscopic survey of asteroid families in the UV.  PI: Bodewits, D. (University of Maryland at College Park), NASA Swift Guest Investigator, Cycle 8, 2011.

21.Co-Investigator, “Swift/UVOT observations of the outburst of 596 Scheila”.  PI: Bodwits, D. (University of Maryland at College Park), NASA Swift Guest Investigator, Cycle 7/DD, 2010.

22.Co-Investigator, “A Swift spectroscopic survey of asteroids in the UV: Compositional and weathering effects”, PI: Bodewits, D. (University of Maryland at College Park), NASA Swift Guest Investigator, Cycle 7, 2010.

23.Co-Investigator, “High-contrast imaging of asteroids: A search for companions and debris in support of NASA’s Dawn space mission”.  PI: Justin Crepp (Caltech), Palomar Observatory 2010a, 1 night.

Teaching Experience

University of Chinese Academy of Science, Introduction to Planetary Science, Solar System Small Bodies section, graduate core course, Fall semesters 2016-17, 2017-18.

Invited talks and seminars

1.Thermal Mapping of Ceres.  Asia Oceania Geosciences Society (AOGS) 13th Annual Meeting, Beijing, China, August 2, 2016.

2.Variability on Ceres.  Goddard Space Flight Center, Future Exploration Science Working Group Seminar, March 3, 2016

3.Bright Spots on Ceres and Search for Dust Around Ceres.  Department of Astronomy Planetary Astronomy Late-afternoon Seminar, University of Maryland College Park, MD, October 29, 2015.

4.Dawn Arrives at Ceres.  Space Science Institute, Macau University of Science and Technology, Macau, China, August 1, 2015.

5.Dawn Arrives at Ceres.  Purple Mountain Observatory, Nanjing, China, July 31, 2015.

6.Dawn Arrives at Ceres.  European Southern Observatory, Santiago, Chile, July 1, 2015.

7.Dawn Approaches Ceres.  University of Maryland, March 26, 2015.

8.Breakfast at Ceres.  NASA Goddard Space Flight Center, with L.A. McFadden, March 12, 2015.

9.Hubble Space Telescope View of Comet C/Siding Spring during its Close Encounter with Mars.  American Geophysical Union 2014 Fall Meeting, December 18, 2014.

10.The Water Regime of Ceres and its Potential Habitability, American Geophysical Union 2014 Fall Meeting, December 18, 2014.

11.The Mysterious Water Regime of Ceres.  Institute of Remote Sensing and GIS, Peking University, Beijing, China, August 15, 2014.

12.The Mysterious Water Regime of Ceres.  Planetary Science Institute, China University of Geoscience (Wuhan), Wuhan, China, August 14, 2014.

13.The Mysterious Water Regime of Ceres.  Institute of Space Science, Macau University of Science and Technology, Macau, China, August 11, 2014.

14.The Mysterious Water Regime of Ceres.  Key Laboratory of Lunar and Deep Space Exploration, National Astronomical Observatory, Chinese Academy of Sciences, Beijing, China, August 7, 2014.

15.HST Imaging of Comets C/2012 S1 (ISON) and C/2013 A1 (Siding Spring).  Asia Oceania Geosciences Society (AOGS) 11th Annual Meeting, Sapporo, Japan.  July 29, 2014.

16.Dawn @ Vesta: Full of Surprises.  Institute of Space Science, Macau University of Science and Technology, Macau, China, January 22, 2014.

17.Dawn @ Vesta: Full of Surprises.  Department of Earth Sciences, Nanjing University, Nanjing, China, January 20, 2014.

18.Comet ISON: An interesting comet from the beginning to the end.  Purple Mountain Observatory, Nanjing, China, January 17, 2014.

19.Comet ISON: An interesting comet from the beginning to the end.  Beijing Planetarium, Beijing, China, January 16, 2014.

20.Dawn @ Vesta: Full of Surprises.  National Astronomical Observatory of China, Beijing, China, January 16, 2014

21.What do we want to know about the nucleus of Comet ISON?  Comet ISON Observer’s Workshop.  Aug 1, 2013.

22.Hubble Observations of Comet C/ISON.  Johns Hopkins University, Applied Physics Laboratory, Laurel, MD.  May 22, 2013.

23.Photometry of Cometary Nuclei and the Implications.  Space Telescope Science Institute, Baltimore, MD.  Dec 14, 2012.

24.Photometry of Cometary Nuclei and the Implications.  Carnegie Institution of Washington, Department of Terrestrial Magnetism, Washington, DC.  Nov 30, 2012.

25.Dawn at Vesta: A Whole New World.  Purple Mountain Observatory, Nanjing, China.  May 10, 2012.

26.Dawn at Vesta: A Whole New World.  Nanjing University, School of Geographic and Oceanographic Sciences, Nanjing, China.  May 11, 2012.

27.Dawn at Vesta: A Whole New World.  University of Science and Technology of China, Hefei, China.  May 14, 2012.

28.Dawn at Vesta: A Whole New World.  Shanghai Astronomical Observatory, Shanghai, China.  May 15, 2012.

29.Vesta Fiesta!  Department of Astronomy Observatory Open House, College Park, MD. Aug 5, 2011.

30.Colorful Surface of Vesta.  California Institute of Technology, Infrared Processing and Analysis Center (IPAC), Pasadena, CA. Apr 30, 2010.

31.Colorful Surface of Vesta.  Carnegie Observatory, Pasadena, CA.  May 3, 2010.

32.Mapping the Dwarf World – Ceres and Vesta – Preparing for Dawn Mission.  University of Science and Technology of China, Hefei, Anhui, China.  Apr 20, 2009.

33.Mapping the Dwarf World – Ceres and Vesta – Preparing for Dawn Mission.  Purple Mountain Observatory, Nanjing, China.  Apr 13, 2009.

34.Photometric Variations on Cometary Nuclei -Implications from Comets 19P/Borrelly, 9P/Tempel 1, and 81P/Wild 2.  Jet Propulsion Laboratory, Pasadena, CA.  Oct 20, 2008.

35.Mapping the Dwarf Worlds – Ceres and Vesta.  Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, DC.  Nov 2, 2007.

36.Deep Impact.  University of Science and Technology of China, Hefei, Anhui, China., July 25, 2006.

37.Photometry and surface mapping of asteroid (1) Ceres from HST observations.  36th COSPAR Scientific Assembly Beijing, China.  July 20, 2006.

38.Photometric Analysis and Mapping for Small Bodies and their Applications on Space Exploration Missions.  National Astronomical Observatory, Chinese Academy of Science, Beijing, China.  July 18, 2006.

39.Deep Impact Photometry of Comet 9P/Tempel 1.  Asia Oceania Geosciences Society (AOGS) 3rd Annual Meeting, Singapore.  July 11, 2006.

40.Deep Impact and an Overview of its Scientific Results.  Naval Research Lab, Washington DC.  May 5, 2006.

Community Service

Convener: Asia Oceania Geoscience Society (AOGS) Annual Meeting 2016, Sessions PS-08 and PS-09, AOGS 2017 Sessions PS11 and SS04.

Scientific Organizing Committee:

International Symposium on Lunar and Planetary Science, June 9-10, 2016.

Vesta in the Light of Dawn Workshop, Feb 3-4, 2014, Houston, TX.

Lecturer:

Summer School for Planetary Science and Exploration in East Asia, June 5-8, 2016.

COSPAR Capacity Building Workshop on Planetary Science, Montevideo, Uruguay, July 23 – Aug 3, 2007.

NASA R&A Programs Reviewer:

Cassini Data Analysis (panelist) (2006)

Planetary Geology and Geophysics (2010, 2009)

Planetary Mission Data Analysis (2008)

Cassini Data Analysis (2007, 2013)

Origin of Solar System (2013)

Outer Planets Research (2014)

Planetary Data Archiving, Restoration, and Tools (2015)

Solar System Observations (2016)

NSF R&A Program Reviewer: 2014

Telescope Proposal Reviewer:

Subaru telescope (2015)

CanTAC (2015)

Hubble Space Telescope (2016)

NASA PDS Data Reviewer: Small Bodies Node, February, May, December 2016, March, December 2014, Mar 2013, April 2012, December and August 2011, September and March 2010, October, 2009

Guest Editor: Icarus on Dark and Bright Materials on Vesta.

Journal Reviewer: Icarus, Space Sci. Rev., Planet. Space Sci., Public. Astron. Soc. Japan, Astron. J., Res. Astron. Astrophys., Astrophys. Space Sci., Geophys. Res. Lett., Astron. Astrophys., Mon. Not. Royal. Astron. Soc.

Seminar Organizer: Planetary Astronomy Seminar, Department of Astronomy, University of Maryland, 2010 – 2012.

Media Coverage

1.Rosetta,《科学世界》,2016

2.Hubble Catches Views of a Jet Rotating with Comet 252P/LINEAR, News Release Number STScI-2016-14, by Space Telescope Science Institute, May 2016.

3.探索太阳系的黎明,《科学世界》,April issue, 2015.

4.登陆彗星,《科学世界》, January issue, 2015.

5.Could the Dwarf Planet Ceres Support Lift? Space.com, December 22, 2014.

6.Hubble and Dawn Collaborate to See Ceres, Hubble Google+ Hangout, December 11, 2014.

7.Strange Comet Behaviour Puzzles Researchers, Nature News, November 13, 2014.

8.Hubble Space Telescope View of Comet C/2013 A1 (Siding Spring), 46th AAS Division for Planetary Science Conference Press Briefing, November 11, 2014.

9.Close Encounters: Comet Siding Spring Seen Next to Mars, News Release Number STScI-2014-45, by Space Telescope Science Institute, October 23, 2014.

10.Hubble Observations of Comet Siding Spring and Mars, Hubble Google+ Hangout, October 23, 2014.

11.NASA’s Hubble Space Telescope Spots Mars-Bound Comet Sprout Multiple Jets, NASA Press Release 14-090, March 27, 2014.

12.Dawn Mission: Hubble Inspired, Dawn Google+ Hangout, 3:00 pm, December 5, 2013.

13.Oort Cloud Tosses Astronomers a Cometary Curveball, Science News, October 25, 2013.

14.Hubble Releases New Comet ISON Observations, Hubble Google+ Hangout, 4:00 pm, October 17, 2013.

15.The Life and Death of Comet ISON, Discover Magazine cover story, November 2013 issue.

16.Early Characterization of Comet ISON, 45th AAS Division for Planetary Sciences Conference Press Briefing, 12:00 pm, October 9, 2013.

17.Dawn Reality-Checks Telescope Studies of Asteroids, NASA Jet Propulsion Laboratory Dawn mission press release, 2013-293, October 2013.

18.The Hubble Space Telescope and Comet ISON, Hubble Google+ Hangout, 4:00 pm, July 17, 2013.

19.Fox 5 Morning News, Washington DC, on Comet C/ISON, 9:15 am, 4/30/2013, 5 minutes.

20.Hubble Captures Comet ISON, News Release Number STScI-2013-14, by Space Telescope Science Institute, April 2013.

21.Dawn Sees New Surface Features on Giant Asteroid, NASA Jet Propulsion Laboratory press release, March 2012.

22.Dawn Press Conference at 43th Lunar and Planetary Science Conference, The Woodlands, TX, March 2012.

23.NASA's SWIFT and Hubble Probe Asteroid Collision Debris, News Release Number STScI-2011-13, by Hubble Space Telescope and Swift, April 2011.

24.Dawn Captures Video on Approach to Asteroid Vesta, NASA Jet Propulsion Laboratory press release, June 2011.

25.NASA Mission to Asteroid Gets Help from Hubble Space Telescope, News Release Number STScI-2010-33, joint press release by Space Telescope Science Institute and NASA Jet Propulsion Laboratory, October 2010.

26.Hubble Images of Asteroids Help Astronomers Prepare for Spacecraft Visit, News Release Number STScI-2007-27, by Space Telescope Science Institute, June 2007.

Mentoring

Xiaoduan Zou, Postdoctoral Research Scientist, Planetary Science Institute, 2015-present

Karen Xia, Thomas Jefferson High School for Science and Technology, Alexandria, VA, 2013-2014.

Holly Wu, Research Assistant, University of Maryland at College Park, 2011-2012

Jade Williams, Faculty Research Assistant, University of Maryland at College Park, 2010-2012

Shantanu Naidu, Research Assistant, University of Maryland College Park, 2009-2010.

Carolyn Crow, Research Assistant, University of Maryland College Park, 2009-2010.

Professional Societies

American Astronomical Society – Division of Planetary Sciences (AAS/DPS)

International Astronomical Union – Division F

American Geophysical Union – Planetary Sciences

Computer skills:

Programming languages: Python, C, C++, Fortran

Data processing and plotting: IDL, DS9, Photoshop, IRAF, Matlab, Origin, Excel

All popular operating systems including Macintosh, UNIX, Linux, Windows

Text processing: Latex, Word, PowerPoint, Keynote

Language skills:

Chinese (native), English (full professional proficiency+)

 

 

 

Publications:

Summary of Citations:

All co-authored articles:

 

Total articles

91

Total citations

3721

Average citations per article

40.9

h-index

33

g-index

59

First authored articles:

 

Total articles

19

Total citations

532

Average citations per article

28.0

h-index

12