VITA David Jewitt Address Dept. Earth, Planetary and Space
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KAREN J. MEECH February 7, 2019 Astronomer
BIOGRAPHICAL SKETCH – KAREN J. MEECH February 7, 2019 Astronomer Institute for Astronomy Tel: 1-808-956-6828 2680 Woodlawn Drive Fax: 1-808-956-4532 Honolulu, HI 96822-1839 [email protected] PROFESSIONAL PREPARATION Rice University Space Physics B.A. 1981 Massachusetts Institute of Tech. Planetary Astronomy Ph.D. 1987 APPOINTMENTS 2018 – present Graduate Chair 2000 – present Astronomer, Institute for Astronomy, University of Hawaii 1992-2000 Associate Astronomer, Institute for Astronomy, University of Hawaii 1987-1992 Assistant Astronomer, Institute for Astronomy, University of Hawaii 1982-1987 Graduate Research & Teaching Assistant, Massachusetts Inst. Tech. 1981-1982 Research Specialist, AAVSO and Massachusetts Institute of Technology AWARDS 2018 ARCs Scientist of the Year 2015 University of Hawai’i Regent’s Medal for Research Excellence 2013 Director’s Research Excellence Award 2011 NASA Group Achievement Award for the EPOXI Project Team 2011 NASA Group Achievement Award for EPOXI & Stardust-NExT Missions 2009 William Tylor Olcott Distinguished Service Award of the American Association of Variable Star Observers 2006-8 National Academy of Science/Kavli Foundation Fellow 2005 NASA Group Achievement Award for the Stardust Flight Team 1996 Asteroid 4367 named Meech 1994 American Astronomical Society / DPS Harold C. Urey Prize 1988 Annie Jump Cannon Award 1981 Heaps Physics Prize RESEARCH FIELD AND ACTIVITIES • Developed a Discovery mission concept to explore the origin of Earth’s water. • Co-Investigator on the Deep Impact, Stardust-NeXT and EPOXI missions, leading the Earth-based observing campaigns for all three. • Leads the UH Astrobiology Research interdisciplinary program, overseeing ~30 postdocs and coordinating the research with ~20 local faculty and international partners. -
Asteroid Shape and Spin Statistics from Convex Models J
Asteroid shape and spin statistics from convex models J. Torppa, V.-P. Hentunen, P. Pääkkönen, P. Kehusmaa, K. Muinonen To cite this version: J. Torppa, V.-P. Hentunen, P. Pääkkönen, P. Kehusmaa, K. Muinonen. Asteroid shape and spin statistics from convex models. Icarus, Elsevier, 2008, 198 (1), pp.91. 10.1016/j.icarus.2008.07.014. hal-00499092 HAL Id: hal-00499092 https://hal.archives-ouvertes.fr/hal-00499092 Submitted on 9 Jul 2010 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Accepted Manuscript Asteroid shape and spin statistics from convex models J. Torppa, V.-P. Hentunen, P. Pääkkönen, P. Kehusmaa, K. Muinonen PII: S0019-1035(08)00283-2 DOI: 10.1016/j.icarus.2008.07.014 Reference: YICAR 8734 To appear in: Icarus Received date: 18 September 2007 Revised date: 3 July 2008 Accepted date: 7 July 2008 Please cite this article as: J. Torppa, V.-P. Hentunen, P. Pääkkönen, P. Kehusmaa, K. Muinonen, Asteroid shape and spin statistics from convex models, Icarus (2008), doi: 10.1016/j.icarus.2008.07.014 This is a PDF file of an unedited manuscript that has been accepted for publication. -
Disintegration of Active Asteroid P/2016 G1 (PANSTARRS) Olivier R
A&A 628, A48 (2019) https://doi.org/10.1051/0004-6361/201935868 Astronomy & © ESO 2019 Astrophysics Disintegration of active asteroid P/2016 G1 (PANSTARRS) Olivier R. Hainaut1, Jan T. Kleyna2, Karen J. Meech2, Mark Boslough3, Marco Micheli4,5, Richard Wainscoat2, Marielle Dela Cruz2, Jacqueline V. Keane2, Devendra K. Sahu6, and Bhuwan C. Bhatt6 1 European Southern Observatory, Karl-Schwarzschild-Strasse 2, 85748 Garching bei München, Germany e-mail: [email protected] 2 Institute for Astronomy, 2680 Woodlawn Drive, Honolulu, HI 96822, USA 3 University of NM – 1700 Lomas Blvd, NE. Suite 2200, Albuquerque, NM 87131-0001 USA 4 ESA SSA-NEO Coordination Centre, Largo Galileo Galilei, 1 00044 Frascati (RM), Italy 5 INAF – Osservatorio Astronomico di Roma, Via Frascati, 33, 00040 Monte Porzio Catone (RM), Italy 6 Indian Institute of Astrophysics, II Block, Koramangala, Bengaluru 560 034, India Received 10 May 2019 / Accepted 26 June 2019 ABSTRACT We report on the catastrophic disintegration of P/2016 G1 (PANSTARRS), an active asteroid, in April 2016. Deep images over three months show that the object is made up of a central concentration of fragments surrounded by an elongated coma, and presents previously unreported sharp arc-like and narrow linear features. The morphology and evolution of these characteristics independently point toward a brief event on 2016 March 6. The arc and the linear feature can be reproduced by large particles on a ring, moving at ∼2:5 m s−1. The expansion of the ring defines a cone with a ∼40◦ half-opening. We propose that the P/2016 G1 was hit by a small object which caused its (partial or total) disruption, and that the ring corresponds to large fragments ejected during the final stages of the crater formation. -
Investigating Cosmic Snowballs
Investigating Cosmic Snowballs Professor David Jewitt CREDIT: NASA INVESTIGATING COSMIC SNOWBALLS Professor David Jewitt and his team at UCLA explore the nature of comets. These fleeting visitors to our cosmic shore are important sources of information, and can help to reveal the origin and evolution of the solar system. Most recently, Professor Jewitt’s team have explained the unusual activity of some of the most distant comets in the solar system. Comets play a vivid historical role in the orbital periods of less than 200 years), human psyche, often being interpreted and the other supplying long-period as portents of impending doom. In the objects (greater than 200 years). The era of modern science, we realise that nearest store of cometary precursors, comets are simply icy leftovers, frozen in containing billions of nuclei larger time since the solar system’s formation than a kilometre across, is called the about 4.6 billion years ago. Kuiper Belt. This is a fat disk of objects encircling the Sun with an inner edge Far from bringing us doom and disaster, at Neptune’s orbit – approximately 7.5 comets offer scientists unparalleled billion kilometres from the Sun, or 30 opportunities to learn about the earliest AU – and reaching out to at least several periods of the solar system’s evolution. thousand AU. Pluto resides in this region At the same time, they are some of and is now recognised as large Kuiper the most challenging objects to Belt object. study and remain some of the least well understood. The Kuiper belt was discovered by Professor David Jewitt and his former What Are Comets and Where Do student Jane Luu in 1992. -
Section 1: MIT Facts and History
1 MIT Facts and History Economic Information 9 Technology Licensing Office 9 People 9 Students 10 Undergraduate Students 11 Graduate Students 12 Degrees 13 Alumni 13 Postdoctoral Appointments 14 Faculty and Staff 15 Awards and Honors of Current Faculty and Staff 16 Awards Highlights 17 Fields of Study 18 Research Laboratories, Centers, and Programs 19 Academic and Research Affiliations 20 Education Highlights 23 Research Highlights 26 7 MIT Facts and History The Massachusetts Institute of Technology is one nologies for artificial limbs, and the magnetic core of the world’s preeminent research universities, memory that enabled the development of digital dedicated to advancing knowledge and educating computers. Exciting areas of research and education students in science, technology, and other areas of today include neuroscience and the study of the scholarship that will best serve the nation and the brain and mind, bioengineering, energy, the envi- world. It is known for rigorous academic programs, ronment and sustainable development, informa- cutting-edge research, a diverse campus commu- tion sciences and technology, new media, financial nity, and its long-standing commitment to working technology, and entrepreneurship. with the public and private sectors to bring new knowledge to bear on the world’s great challenges. University research is one of the mainsprings of growth in an economy that is increasingly defined William Barton Rogers, the Institute’s founding pres- by technology. A study released in February 2009 ident, believed that education should be both broad by the Kauffman Foundation estimates that MIT and useful, enabling students to participate in “the graduates had founded 25,800 active companies. -
Early Observations of the Interstellar Comet 2I/Borisov
geosciences Article Early Observations of the Interstellar Comet 2I/Borisov Chien-Hsiu Lee NSF’s National Optical-Infrared Astronomy Research Laboratory, Tucson, AZ 85719, USA; [email protected]; Tel.: +1-520-318-8368 Received: 26 November 2019; Accepted: 11 December 2019; Published: 17 December 2019 Abstract: 2I/Borisov is the second ever interstellar object (ISO). It is very different from the first ISO ’Oumuamua by showing cometary activities, and hence provides a unique opportunity to study comets that are formed around other stars. Here we present early imaging and spectroscopic follow-ups to study its properties, which reveal an (up to) 5.9 km comet with an extended coma and a short tail. Our spectroscopic data do not reveal any emission lines between 4000–9000 Angstrom; nevertheless, we are able to put an upper limit on the flux of the C2 emission line, suggesting modest cometary activities at early epochs. These properties are similar to comets in the solar system, and suggest that 2I/Borisov—while from another star—is not too different from its solar siblings. Keywords: comets: general; comets: individual (2I/Borisov); solar system: formation 1. Introduction 2I/Borisov was first seen by Gennady Borisov on 30 August 2019. As more observations were conducted in the next few days, there was growing evidence that this might be an interstellar object (ISO), especially its large orbital eccentricity. However, the first astrometric measurements do not have enough timespan and are not of same quality, hence the high eccentricity is yet to be confirmed. This had all changed by 11 September; where more than 100 astrometric measurements over 12 days, Ref [1] pinned down the orbit elements of 2I/Borisov, with an eccentricity of 3.15 ± 0.13, hence confirming the interstellar nature. -
Photometric Study of Two Near-Earth Asteroids in the Sloan Digital Sky Survey Moving Objects Catalog
University of North Dakota UND Scholarly Commons Theses and Dissertations Theses, Dissertations, and Senior Projects January 2020 Photometric Study Of Two Near-Earth Asteroids In The Sloan Digital Sky Survey Moving Objects Catalog Christopher James Miko Follow this and additional works at: https://commons.und.edu/theses Recommended Citation Miko, Christopher James, "Photometric Study Of Two Near-Earth Asteroids In The Sloan Digital Sky Survey Moving Objects Catalog" (2020). Theses and Dissertations. 3287. https://commons.und.edu/theses/3287 This Thesis is brought to you for free and open access by the Theses, Dissertations, and Senior Projects at UND Scholarly Commons. It has been accepted for inclusion in Theses and Dissertations by an authorized administrator of UND Scholarly Commons. For more information, please contact [email protected]. PHOTOMETRIC STUDY OF TWO NEAR-EARTH ASTEROIDS IN THE SLOAN DIGITAL SKY SURVEY MOVING OBJECTS CATALOG by Christopher James Miko Bachelor of Science, Valparaiso University, 2013 A Thesis Submitted to the Graduate Faculty of the University of North Dakota in partial fulfillment of the requirements for the degree of Master of Science Grand Forks, North Dakota August 2020 Copyright 2020 Christopher J. Miko ii Christopher J. Miko Name: Degree: Master of Science This document, submitted in partial fulfillment of the requirements for the degree from the University of North Dakota, has been read by the Faculty Advisory Committee under whom the work has been done and is hereby approved. ____________________________________ Dr. Ronald Fevig ____________________________________ Dr. Michael Gaffey ____________________________________ Dr. Wayne Barkhouse ____________________________________ Dr. Vishnu Reddy ____________________________________ ____________________________________ This document is being submitted by the appointed advisory committee as having met all the requirements of the School of Graduate Studies at the University of North Dakota and is hereby approved. -
Alector Strengthens Board of Directors with Appointments of David Wehner, Richard Scheller and Louis Lavigne
Alector Strengthens Board of Directors with Appointments of David Wehner, Richard Scheller and Louis Lavigne November 16, 2018 SOUTH SAN FRANCISCO, Calif.--(BUSINESS WIRE)--Alector, a privately held biotechnology company pioneering immuno-neurology, a novel therapeutic approach for the treatment of neurodegeneration, today announced the following additions to its board as independent directors: David Wehner, Chief Financial Officer of Facebook Richard Scheller, Ph.D., Chief Scientific Officer of 23andMe Louis J. Lavigne, Jr. former Executive Vice President and Chief Financial Officer of Genentech “David, Richard and Lou bring extensive technical and operational expertise to our team, as we continue our progress towards becoming a fully integrated biotechnology company,” said Arnon Rosenthal, Ph.D., president and chief executive officer of Alector. “We look forward to leveraging their insights in drug development, strategic financial management, business operations and corporate growth strategies in order to accelerate transformative medicines with the goal of curing neurodegenerative diseases.” Mr. Wehner brings extensive financial and operational experience to Alector. Prior to his current position as chief financial officer of Facebook, Mr. Wehner served as vice president of corporate finance and business planning at Facebook. Before that, he was the chief financial officer of Zynga and served in various positions at Allen & Company for nine years, where he ultimately served as a managing director. Earlier in his career, Mr. Wehner was an equity analyst at Hambrecht & Quist. Mr. Wehner holds an M.S. in applied physics from Stanford University and a B.S. in chemistry from Georgetown University. Dr. Scheller is a preeminent neuroscientist and experienced drug development leader. -
Curriculum Vitae: Dr
Curriculum Vitae: Dr. Yanga R. “Yan” Fernandez´ UniversityofCentralFlorida Ph: +1-407-8232325 Department of Physics Fax: +1-407-8235112 4000 Central Florida Blvd. Email: [email protected] Orlando, FL 32816-2385 U.S.A. Website: physics.ucf.edu/∼yfernandez/ Education University of Maryland, College Park, Ph.D. Astronomy, 1999 Dissertation: Physical Properties of Cometary Nuclei University of Maryland, College Park, M.S. Astronomy, 1995 California Institute of Technology, B.S. with Honors, Astronomy, 1993 Professional Experience and Appointments 2019 - present Professor, Department of Physics, University of Central Florida 2016 - present Associate Scientist, Florida Space Institute, University of Central Florida 2011 - 2019 Associate Professor, Department of Physics, University of Central Florida 2005 - 2011 Assistant Professor, Department of Physics, University of Central Florida 2002 - 2005 SIRTF/Spitzer Fellow, Institute for Astronomy, University of Hawai‘i 1999 - 2002 Scientific Researcher, Institute for Astronomy, University of Hawai‘i Honors and Awards • Asteroid (12225) Yanfernandez named in honor. • International Astronomical Union membership, awarded 2012. • SIRTF/Spitzer Fellowship, 2002-2005. • UCF Scroll & Quill Society membership, awarded 2017. External Funding • As PI, 16 grants totalling $1,337K. • As Co-PI or Co-I, 14 grants totalling $531K to YRF. Impact Indicators (as of April 22, 2021) • Google Scholar lists nearly 5500 citations all-time of refereed and unrefereed work. https://scholar.google.com/citations?user=wPjufFkAAAAJ&hl=en. • Astrophysics Data System has recorded about 3600 citations all-time of refereed and unrefereed work. https://tinyurl.com/mufdrktx. Y.R.Fern´andez CV April 2021 1 • Web of Science (WoS) has recorded over 3000 citations all-time of refereed work that is included in WoS. -
Comet Section Observing Guide
Comet Section Observing Guide 1 The British Astronomical Association Comet Section www.britastro.org/comet BAA Comet Section Observing Guide Front cover image: C/1995 O1 (Hale-Bopp) by Geoffrey Johnstone on 1997 April 10. Back cover image: C/2011 W3 (Lovejoy) by Lester Barnes on 2011 December 23. © The British Astronomical Association 2018 2018 December (rev 4) 2 CONTENTS 1 Foreword .................................................................................................................................. 6 2 An introduction to comets ......................................................................................................... 7 2.1 Anatomy and origins ............................................................................................................................ 7 2.2 Naming .............................................................................................................................................. 12 2.3 Comet orbits ...................................................................................................................................... 13 2.4 Orbit evolution .................................................................................................................................... 15 2.5 Magnitudes ........................................................................................................................................ 18 3 Basic visual observation ........................................................................................................ -
Professor Peter Goldreich Member of the Board of Adjudicators Chairman of the Selection Committee for the Prize in Astronomy
The Shaw Prize The Shaw Prize is an international award to honour individuals who are currently active in their respective fields and who have recently achieved distinguished and significant advances, who have made outstanding contributions in academic and scientific research or applications, or who in other domains have achieved excellence. The award is dedicated to furthering societal progress, enhancing quality of life, and enriching humanity’s spiritual civilization. Preference is to be given to individuals whose significant work was recently achieved and who are currently active in their respective fields. Founder's Biographical Note The Shaw Prize was established under the auspices of Mr Run Run Shaw. Mr Shaw, born in China in 1907, was a native of Ningbo County, Zhejiang Province. He joined his brother’s film company in China in the 1920s. During the 1950s he founded the film company Shaw Brothers (HK) Limited in Hong Kong. He was one of the founding members of Television Broadcasts Limited launched in Hong Kong in 1967. Mr Shaw also founded two charities, The Shaw Foundation Hong Kong and The Sir Run Run Shaw Charitable Trust, both dedicated to the promotion of education, scientific and technological research, medical and welfare services, and culture and the arts. ~ 1 ~ Message from the Chief Executive I warmly congratulate the six Shaw Laureates of 2014. Established in 2002 under the auspices of Mr Run Run Shaw, the Shaw Prize is a highly prestigious recognition of the role that scientists play in shaping the development of a modern world. Since the first award in 2004, 54 leading international scientists have been honoured for their ground-breaking discoveries which have expanded the frontiers of human knowledge and made significant contributions to humankind. -
New Sub-Millimeter Limits on Dust in the 55 Cancri Planetary System
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by CERN Document Server New sub-millimeter limits on dust in the 55 Cancri planetary system Ray Jayawardhana1, Wayne S. Holland2, Paul Kalas1,JaneS.Greaves2, William R. F. Dent2,MarkC.Wyatt2, and Geoffrey W. Marcy1 ABSTRACT We present new, high-sensitivity sub-millimeter observations towards 55 Can- cri, a nearby G8 star with one, or possibly two, known planetary companion(s). Our 850 µm map, obtained with the SCUBA instrument on the James Clerk Maxwell Telescope, shows three peaks of emission at the 2.5 mJy level in the vicinity of the star’s position. However, the observed peaks are 2500–4000 away from the star and a deep R-band optical image reveals faint point sources that coincide with two of the sub-millimeter peaks. Thus, we do not find evidence for dust emission spatially associated with 55 Cancri. The excess 60 µmemis- sion detected with ISO may originate from one or more of the 850 µmpeaks that we attribute to background sources. Our new results, together with the HST/NICMOS coronographic images in the near-infrared, place stringent limits on the amount of dust in this planetary system, and argue against the existence of a detectable circumstellar dust disk around 55 Cnc. Subject headings: planetary systems – stars : individual (55 Cnc) – circumstellar matter 1. Introduction Dusty disks that are believed to be the debris of planetary formation have now been imaged at infrared and sub-millimeter wavelengths around several nearby main-sequence stars including β Pictoris, HR 4796A, Vega, Fomalhaut and Eridani (Smith & Terrile 1984; Holland et al.