Äîêóìåíò âçÿò èç êýøà ïîèñêîâîé ìàøèíû. Àäðåñ îðèãèíàëüíîãî äîêóìåíòà : http://www.eso.org/~sxu/CV_files/CV_2015_05_A4.pdf Äàòà èçìåíåíèÿ: Wed May 27 23:12:46 2015 Äàòà èíäåêñèðîâàíèÿ: Sun Apr 10 21:24:12 2016 Êîäèðîâêà: Ïîèñêîâûå ñëîâà: ancient observatory

Dr. Siyi Xu ()
ESO Fellow European Southern Observatory Karl-Schwarzschild-Str. 2, 85748 Garching bei Munich, Germany Office: HQ 503 Phone: +49 89 32006298 Email: sxu@eso.org Webpage: www.eso.org/~sxu

Experience:
· · · 2014 -- present Fellow, Directorate for science, European Southern Observatory 2014 -- present Fellow Astronomer, Paranal Observatory Science Operations, ESO Paranal Observatory/Very Large Telescope 2009 summer Exchange Student, Cross-Disciplinary Scholars in Science and Technology (CSST), University of California, Los Angeles

Education:
· · 2010 -- 2014 Ph.D., Astronomy, University of California, Los Angeles, USA Advisor: Michael A. Jura 2006 -- 2010 B.S., Astronomy, Nanjing University, China

Research Statements:
· · Keyword: Planetary Systems, Elemental Compositions, Extrasolar Cosmochemistry, White Dwarfs, Circumstellar Disks Compositions of extrasolar asteroids: About 25-50% white dwarfs are accreting their own asteroids. I have performed spectroscopic studies in the optical and ultraviolet (Keck/HIRES, HST/COS, Keck/ESI, VLT/UVES, Magellan/IMACS) on these white dwarfs to understand the chemical compositions of extrasolar asteroids. Circumstellar disks & white dwarfs: About 4% white dwarfs display excess infrared radiation from tidally disrupted asteroids. I have used various instruments (Spitzer/IRAC, WISE, UKIRT, Keck/NIRSPEC, Herschel/PACS) to characterize these disks. Planetary systems & white dwarfs: I recently started a program with VLT/SPHERE to look for substellar objects around white dwarfs.

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Awards & Grants:
· · · · · Best presentation at Frontiers of Stellar Spectroscopy, Heidelberg 2015 International Astronomical Union (IAU) travel grant 2012 Meticulous Winner, the Mathematical Contest in Modeling (MCM), consortium for mathematics and its applications 2009 Excellence Completion of National Undergraduate Innovative Program, Nanjing University 2008 Renmin Fellowship, Nanjing University 2007

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Telescope Programs:
· · Magellan/IMACS: multi-object spectroscopy, onsite observing, analysis underway o Co-I, 2015A, 2 nights Keck/HIRES: high-resolution optical spectroscopy, extensive experience in observing & data reduction, results in [A4, A6, B5, B8], more analysis underway o Co-I, 2011-2015, 8.5 nights HST/COS: high-resolution ultraviolet spectroscopy, extensive experience in planning observations & data reduction, results in [A2, A3, A4, B3], more analysis underway o Co-I, Cycle 18 (19 orbits), Cycle 21 (12 orbits) Spitzer/IRAC: mid-infrared photometry, extensive experience in planning observations & data reduction, results in [A1, A5, A6], more analysis underway o PI, DDT, 2014 (0.4 hr) o Co-I, Cycle 7 (10.3 hr), Cycle 8 (28.4 hr), Cycle 9 (5.1 hr), Cycle 10 (3.7 hr) VLT/UVES: high-resolution optical spectroscopy, data to be acquired o PI, 095.C-0439 (7.5 hr), 095.C-0564 (3.8 hr) Keck/ESI: high-resolution optical spectroscopy, experience in observing & data reduction, analysis underway o Co-I, 2015A, 1.5 nights Keck/NIRSPEC: low-resolution KL band spectroscopy, experience in observing & data reduction, results in [A4] o Co-I, 2011B, 0.5 night VLT/SPHERE: extreme-AO imaging, experience in planning the observing, paper submitted [A7] o PI, 60.A-9373 (1.1 hr, science verification) UKIRT: near-infrared photometry, experience in planning observations, results in [A5, A6], more analysis underway o Co-I, 2014-2015, (14 hr) o Co-I, DDT, 2014 (1 hr) Herschel/PACS: mid-infrared photometry, experience in planning observations & data reduction, results in [A3] o Co-I, 2012, OT1 (1.1 hr)

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Press Attention:
· · Kunshan Daily: The Quest for the Brightest Star Physics World: Cold Hydrogen Molecules Found on Hot Stars 2015 2013

Teaching & Outreach:
· · · Public talk, Kunshan Middle School "Fellow Mentor" for one ESO Ph.D. student Co-advising student: o Nivedita Mahesh (UCLA graduate) o Jessica Luna (REU student) o Guochao Sun (UCLA undergraduate) o Misaki Nabeshima (UCLA undergraduate) 2015 2015 2014 ­ present 2014 2013 ­ 2014 2012 ­ 2013 2/4

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o Blake Pantoja (REU student) Speaker at UCLA planetarium 2011 ­ o Developed a new planetarium show entitled Astronomy in Ancient China Active member of the UCLA outreach group Astronomy Live! 2010 ­ Lab Teaching Assistant for "Nature of the Universe" Spring Teaching Assistant, Led weekly discussion for "Life in Universe" Summer Vice President of Amateur Astronomy Club, Nanjing University 2008 ­

2013 2014 2014 2012 2012 2009

Service:
· · · · Organizer, wine & cheese talk, ESO Organizer, Stellar Coffee and Planetary Tea o ESO & MPA/MPE Astronomy Graduate Colloquium Lunch Coordinator, UCLA Astronomy Journal Club Coordinator, UCLA 2014 ­ present 2014 ­ present 2012 ­ 2013 2011 ­ 2012

Talks & Colloquia:
· · · · · · · · · · · · · CRAL seminar, Centre de Recherche Astrophysique de Lyon, France Contributed Talk, Frontiers of Stellar Spectroscopy, Heidelberg Wine & Cheese Talk, ESO Contributed Talk, Planet Formation and Evolution, Kiel, Germany Contributed Talk, 19th European White Dwarf Workshop, Montreal Lunch Talk, Department of Terrestrial Magnetism, Carnegie Institute Dissertation Talk, American Astronomical Society Meeting #223, Washington D Lunch Talk, Carnegie Observatories, Pasadena Invited Talk, Nanjing University, China Invited Talk, National Astronomical Observatories, Beijing, China Invited Talk, American Astronomical Society Meeting #221, Long Beach Project Presentation, Sao Paulo Advanced School of Astrobiology, Brazil Contributed Talk, STScI: the Delivery of Volatiles & Organics, Baltimore 2015 2015 2014 2014 2014 2014 C 2014 2013 2013 2013 2013 2011 2010

Poster Presentations:
· · · · · · Poster, Protostars & Planets VI, Heidelberg, Germany 2013 Poster, Stellar Stoichiometry Workshop, Arizona State University 2013 Poster, IAUS 293, Formation, Detection, and Characterization of Extrasolar Habitable Planets, Beijing, China 2012 th Poster, CPS 8 International School of Planetary Science: Challenges in Astronomy: Observational Advances, Hyogo, Japan 2011 Poster, Gordon Research Conference: Origins of Solar Systems 2011 Poster, Astrobiology Winter School, Hawaii 2011

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Refereed Publications: First Author:
[A7] An Extreme-AO Search for Giant Planets around a White Dwarf: VLT/SPHERE performance on a faint target GD 50 S. Xu, S. Ertel, Z. Wahhaj, J. Milli, P. Scicluna & G. H.-M. Bertrang, A&A letters, submitted [A6] A Young White Dwarf with an Infrared Excess S. Xu, M. Jura, B. Pantoja, B. Klein, B. Zuckerman, K. Y. L. Su, & H. Y. A. Meng, ApJL, in press [A5] The Drop during Less than 300 Days of A Dusty White Dwarf's Infrared Luminosity S. Xu, & M. Jura, 2014, ApJL, 792, L39 [A4] Elemental Compositions of Two Extrasolar Rocky Planetesimals S. Xu, M. Jura, D. Koester, B. Klein, & B. Zuckerman, 2014, ApJ, 783, 79 [A3] Two Beyond-Primitive Extrasolar Planetesimals S. Xu, M. Jura, B. Klein, D. Koester, & B. Zuckerman, 2013, ApJ, 766, 132 [A2] Discovery of Molecular Hydrogen in White Dwarf Atmospheres S. Xu, M. Jura, D. Koester, B. Klein, & B. Zuckerman, 2013, ApJL, 766, L17 [A1] Spitzer Observations of White Dwarfs: the Missing Planetary Debris Around DZ Stars S. Xu, & M. Jura, 2012, ApJ, 175, 88

Contributing Author:
[B8] Evidence for an Anhydrous Carbonaceous Extrasolar Minor Planet M. Jura, P. Dufour, S. Xu, B. Zuckerman, B. Klein, E. D. Young, & C. Melis, 2015, ApJ, 799, 109 [B7] A Pilot Search for Evidence of Extrasolar Earth-analog Plate Tectonics M. Jura, B. Klein, S. Xu, & E. D. Young, 2014, ApJL, 791, L29 [B6] 26Al in the Early Solar System: Not so Unusual After All M. Jura, S. Xu, & E. D. Young, 2013, ApJL, 775, L41 [B5] The Hyades Cluster: Identification of a Planetary System and Escaping White Dwarfs B. Zuckerman, S. Xu, B. Klein, & M. Jura, 2013, ApJ, 770, 140 [B4] Extrasolar Refractory-Dominated Planetesimals: an Assessment M. Jura, & S. Xu, 2013, AJ, 145, 30 [B3] Two Extrasolar Asteroids with Low Volatile-Element Mass Fractions M. Jura, S. Xu, B. Klein, D. Koester, & B. Zuckerman, 2012, ApJ, 750, 69 [B2] Water Fractions in Extrasolar Planetesimals M. Jura, & S. Xu, 2012, AJ, 143, 6 [B1] The Survival of Water within Extrasolar Minor Planets M. Jura, & S. Xu, 2010, AJ, 140, 1129
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