DOCSLIB.ORG

Lunar and Planetary Science XXXII (2001) 1510.Pdf

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Lunar and Planetary Science XXXII (2001) 1510.Pdf Lunar and Planetary Science XXXII (2001) 1510.pdf CRATER CHAINS ON MERCURY. V. V. Shevchenko and T. P. Skobeleva, Sternberg State Astronomical In- stitute, Moscow University, Universitetsky 13, Moscow 119899, Russia, [email protected] Introduction: After discovery of disruption comet It was examined many images from the Mariner 10 Shoemaker-Levy 9 into fragment train before it’s colli- set and there were identified a total 15 crater chains sion with Jupiter there was proposed that linear crater and were unable to link any of these directly chains on the large satellites of Jupiter and on the to any specific large crater associated with ejecta de- Moon are impact scars of past tidally disrupted comets posits. Chain craters are remarkably aligned. All dis- [1 - 4]. tinguished crater chains are superposed on preexisting It’s known that radar images have revealed the pos- formations. sible presence of water ice deposits in polar regions of Chain Morphology: A total 127 craters were Mercury. Impacts by a few large comets seem to pro- identified in the 15 recognized crater chains. The vide the best explanation for both the amount and number of craters per chain ranges from 4 to 11. cleanliness of the ice deposits on Mercury because they Fig. 2 shows that crater diameters range from 3 to have a larger volatile content that others external 13 km, with an average of 7 km. Crater statistics dem- sources, for example, asteroid [5]. onstrates remarkable uniformity of the crater popula- A number of crater chains on the surface of Mer- tion of the chains. May be the feature indicates the cury are most likely the impact tracks of “fragment similar type of origin of these crater chains. trains” of comets tidally disrupted by Sun or by Mer- The other confirmation of the thesis is result of cury and are not secondary craters. Crater Chains Identification: Mariner 10 image Crater statistics set (the three Mariner 10 flybys in 1974-1975) was used to recognize the crater chains which did not asso- 50 ciate with secondary crater ejecta from observed im- s 40 pact structures. As example, in Fig. 1 is shown such crater chain located near crater Imhotep and crater Ib- 30 sen (The Kuiper Quadrangle of Mercury). 20 Number of crater 10 0 2,0-4,0 4,0-6,0 6,0-8,0 8,0-10,0 10,0-12,0 12,0-14,0 Crater diameter, km Fig. 2 Chain morphometry 12 10 8 6 km 4 2 Fig.1 0 Average diameter of crater, 0 20406080100120140 Resolution of the Mariner 10 image is about 0.54 km/pixel. The crater chain is about 50 km long. Length of chain, km Image resolution limits possibility to examine the form of craters strongly. It seems the craters in chains Fig. 3 have roughly flat floor and smooth form. Most chain craters are approximately circular. Lunar and Planetary Science XXXII (2001) 1510.pdf CRATER CHAINS: V.V.Shevchenko and T.P.Skobeleva the crater chain morphometry. Fig. 4 shows the close comets are particularly promising candidates for deliv- correlation (r = 0.72) the average diameter of chain ering water to Mercury. The density of nucleus for crater with the length of the chain (with two excep- large young comets (like as comet Hale-Bopp, for ex- tions). So, it’s possible to conclude that ratio between ample) may be decrease to 0.1 g/cm3 [7]. The Roche the crater chain length and average diameter observed distance for a body with such small density passing chain crater ranges from 4.5 to about 11, with an aver- near to Mercury is 7.6 Rm. This distance is too short age value of about 8.4. for “fragment train” formation. The distance would be It’s needed to note that range of the value of crater pass by the large cometary nucleus during about 5 chain length is relatively narrow: from about 30 to minutes. about 100 km. Crater chain with length of 128 km is There are other characteristics of the possible im- possibly exception (may be its identification is not cor- pactors – orientations of their orbits in space. Fig. 4 rected and it is a crater chain of a secondary, ejecta shows distribution of the measured angles between type). chain direction and the equatorial plane of Mercury. Origin of Primary Impact Crater Chains on Since the equatorial plane of Mercury is close to Mercury: It’s possible to consider two external type of the ecliptic the most orbit inclinations are strongly impactors which be able to form the mentioned crater typical for the long-period comets. These data confirm chains: asteroids and comets. that impact of tidally disrupted comets is the most The total mass influx of asteroids to Mercury re- likely explanation for distinguished crater chains. mains uncertain. Since a small part of observed now The following is an example of numerical model. A asteroids have perihelion distances less than 0.3 AU comet is moving with an orbital velocity of 60 km/s the asteroid impact probability with Mercury theoreti- near perihelion at 0.3 AU from the Sun. It’s a moment cally exist. However, a mechanism of the asteroidal of the beginning of the cometary nucleus disruption 6 body disruption by Mercury or by Sun near Mercury is during next 1.6x10 s up to mercurian surface contact unknown. (through 0.66 AU). In the case of crater chain shown in The Roche distance dr for body with density ρb Fig. 1 (about 50 km long) the length of “fragment passing near to the Mercury is possible to estimate train” must be 972000 km with time of impact of all from dependence, offered in [6]: fragments equal 4.5 h (velocity of rotation a spot on the 1/3 dr=2.0(ρm/ ρb) Rm, mercurian surface is about 11 km per hour). In this where ρm , Rm - density and radius of Mercury. scenario, the fragments drift apart with velocity of For a body with density about 3g/cm3 (stone aster- about 0.6 km/s. There is considered usually that such oid) the expression gives value of dr = 2.4 Rm. A simple velocity is about 15 m/s. simulation of the process of disintegration under effect Discussion: As it was mentioned above the length of tidal forces of stone body shows, that “fragment of the crater chains distinguished in this work as comet train” can not be formed during such short time be- tracks ranges values from 30 to about 100 km. Schenk tween the asteroid disruption and the collision with et al. [3] predicted a comet chain length of about 1500 Mercury. km at Mercury for a 2-km diameter comet passing For cometary nucleus with density about 0.5 g/cm3 the within 1.5 solar radius of the Sun. This discrepancy Roche distance is 4.4 Rm . Recent study of the mercu- remains unexplained. rian ice problem by Moses et al. [5] results that a large Acknowledgments: The authors thank M. Davies, Rand Corp., for placing at our disposal the copies of Crater chain orientation the Mariner 10 image set with documentation. This work was supported by State Program “Astronomia” and partially by the grant of INTAS-ESA 99-00403. 140 m References: [1] Melosh, H., and P. Schenk (1993) 120 100 Nature, 365, 731-733. [2] Melosh, H.J., and 80 E.A.Whitaker (1994) Nature, 369, 713-714. [3] 60 Schenk P.M. et al. (1996) Icarus, 121, 249-274. [4] 40 Shevchenko V.V. (1997) LPS XXVIII, 1305–1306. [5] Chain length, k 20 Moses J.I. et al. (1999) Icarus, 137, 197-221. [6] Rahe 0 J. et al.(1994) In: Hazards due to Comets and Aster- 0 30 60 90 120 150 180 oids. Ed. T.Gehrels. Tucson & London, 623. [7] Angle of chain direction, deg Shevchenko V.V. (1999) Solar System Research, 33, Fig. 4 400-408..
Load more

Recommended publications
  • The Ancient Kemetic Worldview and Self-Liberation: Mdw Ntr and Seeing with Sia
    THE ANCIENT KEMETIC WORLDVIEW AND SELF-LIBERATION: MDW NTR AND SEEING WITH SIA A Thesis Submitted to the Temple University Graduate Board In Partial Fulfillment of the Requirements for the Degree MASTER OF ARTS by Stephanie Joy Tisdale May 2013 Thesis Approval: Dr. Iyelli Ichile, African American Studies, Thesis Advisor © Copyright 2013 by Stephanie Joy Tisdale All Rights Reserved ii ABSTRACT As the direct descendants of the first human beings, African people are the supreme witnesses of Creation itself, and senior authorities regarding the earthly Creations. African people bear supreme witness to humanity, and the most effective methods of being human: the biology and chemistry of life, the physiological and metaphysical aspects of earthly existence, and the science of the cosmic Creations—observing all that is above and what exists there, beyond the sky. By definition humanity is African: the first human beings were African and the first defining innovations of humanity were birthed in Africa. Since history is necessarily a study of the origins of humanity, and the first humans were African, history then must initiate at the emergence of humankind, which took place in Africa. The records left and maintained by the oldest humans on earth—written, memorized, or otherwise—provide amazing clues as to the initial Creation and subsequent development of humankind. As each successive generation works to strengthen the collective memory of their own people’s past before conquer, the struggle to remember memories and to keep traditions intact becomes even more evident. As with every epic turn of events, the conquered are forced to decide if they will remain as such or not.
    [Show full text]
  • School State 11TH STREET ALTERNATIVE SCHOOL KY 12TH
    School State 11TH STREET ALTERNATIVE SCHOOL KY 12TH STREET ACADEMY NC 21ST CENTURY ALTERNATIVE MO 21ST CENTURY COMMUNITY SCHOOLHOUSE OR 21ST CENTURY CYBER CS PA 270 HOPKINS ALC MN 270 HOPKINS ALT. PRG - OFF CAMPUS MN 270 HOPKINS HS ALC MN 271 KENNEDY ALC MN 271 MINDQUEST OLL MN 271 SHAPE ALC MN 276 MINNETONKA HS ALC MN 276 MINNETONKA SR. ALC MN 276-MINNETONKA RSR-ALC MN 279 IS ALC MN 279 SR HI ALC MN 281 HIGHVIEW ALC MN 281 ROBBINSDALE TASC ALC MN 281 WINNETKA LEARNING CTR. ALC MN 3-6 PROG (BNTFL HIGH) UT 3-6 PROG (CLRFLD HIGH) UT 3-B DENTENTION CENTER ID 622 ALT MID./HIGH SCHOOL MN 917 FARMINGTON HS. MN 917 HASTINGS HIGH SCHOOL MN 917 LAKEVILLE SR. HIGH MN 917 SIBLEY HIGH SCHOOL MN 917 SIMLEY HIGH SCHOOL SP. ED. MN A & M CONS H S TX A B SHEPARD HIGH SCH (CAMPUS) IL A C E ALTER TX A C FLORA HIGH SC A C JONES HIGH SCHOOL TX A C REYNOLDS HIGH NC A CROSBY KENNETT SR HIGH NH A E P TX A G WEST BLACK HILLS HIGH SCHOOL WA A I M TX A I M S CTR H S TX A J MOORE ACAD TX A L BROWN HIGH NC A L P H A CAMPUS TX A L P H A CAMPUS TX A MACEO SMITH H S TX A P FATHEREE VOC TECH SCHOOL MS A. C. E. AZ A. C. E. S. CT A. CRAWFORD MOSLEY HIGH SCHOOL FL A. D. HARRIS HIGH SCHOOL FL A.
    [Show full text]
  • Annual Report 2014-2015
    2014 2015 Annual Report Table of Contents 2/3 The International Space Science Institute (ISSI) is an Institute of Advanced Studies where scientists from all over the world meet in a multi- and interdisciplinary setting to reach out for new scientific horizons. The main function is to contribute to the achievement of a deeper understanding of the re- sults from different space missions, ground based observations and laboratory experiments, and add- ing value to those results through multidisciplinary research. The program of ISSI covers a widespread spectrum of disciplines from the physics of the solar system and planetary sciences to astrophysics and cosmology, and from Earth sciences to astrobiology. 4 From the Board of Trustees 20 International Teams 5 From the Directors 37 International Teams approved in 2015 6 About the International Space Science Institute 39 Visiting Scientists 7 The Board of Trustees 41 International Space Science Institute Beijing 8 The Science Committee 42 Events and ISSI in the media at a glance (including centerfold) 9 ISSI Staff 44 Staff Activities 10 Facilities 48 Staff Publications 11 Financial Overview 51 Visitor Publications 12 The Association Pro ISSI 61 Space Sciences Series of ISSI (SSSI) 13 Scientific Activities: The 20th Year 66 ISSI Scientific Reports Series (SR) 14 Forum 67 Pro ISSI SPATIUM Series 15 Workshops 68 ISSI Publications in the 20th Business Year ISSI Annual Report 2014 | 2015 From the Board of Trustees One year ago the undersigned was appointed by the President as secretary of the Board, succeeding Kathrin Altwegg who had served in that capacity for six years.
    [Show full text]
  • 2D Mercury Crater Wordsearch V2
    3/24/2019 Word Search Generator :: Create your own printable word find worksheets @ A to Z Teacher Stuff MAKE YOUR OWN WORKSHEETS ONLINE @ WWW.ATOZTEACHERSTUFF.COM NAME:_______________________________ DATE:_____________ Craters on Mercury SICINIMODFIQPVMRQSLJ BEETHOVEN MICHELANGELO BLTVPTSDUOMRCIPDRAEN BYRON RAPHAEL YAPVWYPXSEHAUEHSEVDI CUNNINGHAM SAVAGE RRZAYRKFJROGNIGSNAIA DAMER SHAKESPEARE ORTNPIVOCDTJNRRSKGSW DOMINICI SVEINSDOTTIR NOMGETIKLKEUIAAGLEYT DRISCOLL TOLSTOI PCLOLTVLOEPSNDPNUMQK ELLINGTON VANGOGH YHEGLOAAEIGEGAHQAPRR FAULKNER VIEIRADASILVA NANHIDLNTNNNHSAOFVLA HEMINGWAY VIVALDI VDGYNSDGGMNGAIEDMRAM HOLST GALQGNIEBIMOMLLCNEZG HOMER VMESTIWWKWCANVEKLVRU IMHOTEP ZELTOEPSBOAWMAUHKCIS IZQUIERDO JRQGNVMODREIUQZICDTH JOPLIN SHAKESPEARETOLSTOIOX KIPLING BBCZWAQSZRSLPKOJHLMA LANGE SFRLLOCSIRDIYGSSSTQT LARROCHA FKUIDTISIYYFAIITRODE LENGLE NILPOJHEMINGWAYEGXLM LENNON BEETHOVENRYSKIPLINGV MARKTWAIN 1/2 Mercury Craters: Famous Writers, Artists, and Composers: Location and Sizes Beethoven: Ludwig van Beethoven (1770−1827). German composer and pianist. 20.9°S, 124.2°W; Diameter = 630 km. Byron: Lord Byron (George Byron) (1788−1824). British poet and politician. 8.4°S, 33°W; Diameter = 106.6 km. Cunningham: Imogen Cunningham (1883−1976). American photographer. 30.4°N, 157.1°E; Diameter = 37 km. Damer: Anne Seymour Damer (1748−1828). English sculptor. 36.4°N, 115.8°W; Diameter = 60 km. Dominici: Maria de Dominici (1645−1703). Maltese painter, sculptor, and Carmelite nun. 1.3°N, 36.5°W; Diameter = 20 km. Driscoll: Clara Driscoll (1861−1944). American glass designer. 30.6°N, 33.6°W; Diameter = 30 km. Ellington: Edward Kennedy “Duke” Ellington (1899−1974). American composer, pianist, and jazz orchestra leader. 12.9°S, 26.1°E; Diameter = 216 km. Faulkner: William Faulkner (1897−1962). American writer and Nobel Prize laureate. 8.1°N, 77.0°E; Diameter = 168 km. Hemingway: Ernest Hemingway (1899−1961). American journalist, novelist, and short-story writer. 17.4°N, 3.1°W; Diameter = 126 km.
    [Show full text]
  • IAU Mercurian Nomenclature
    Appendix 1 IAU Mercurian Nomenclature 1. IAU Nomenclature Rules Since its inception in Brussels in 1919 [1], the International Astronomical Union (IAU) has gradually developed a planetary nomenclature system that has evolved from a purely classically based system into a quite so- phisticated attempt to broaden the cultural base of the names approved for planetary bodies and surface features. At present, name selection is guided by 11 rules (quoted verbatim below) in addition to conventions decided upon by nomenclature task groups for individual Solar System bodies. The general rules are as follows1: 1. Nomenclature is a tool and the first consideration should be to make it simple, clear, and unambiguous. 2. In general, official names will not be given to features whose longest di- mensions are less than 100 metres, although exceptions may be made for smaller features having exceptional scientific interest. 3. The number of names chosen for each body should be kept to a minimum. Features should be named only when they have special scientific inter- est, and when the naming of such features is useful to the scientific and cartographic communities at large. 4. Duplication of the same surface feature name on two or more bodies, and of the same name for satellites and minor planets, is discouraged. Duplications may be allowed when names are especially appropriate and the chances for confusion are very small. 5. Individual names chosen for each body should be expressed in the language of origin. Transliteration for various alphabets should be given, but there will be no translation from one language to another.
    [Show full text]
  • The Issue of Double Taxation in Georgia
    -XQH9ROXPH1XPEHU The Issue of Double Taxation in Georgia The Issue of Double Taxation in Georgia HOW TO GET WHAT IS THE YLD? All members of the Bar who have not yet reached their 36th birthday or who have been admitted to their first bar less than five years are automatically INVOLVED members. Today, the YLD is one of the most dynamic arms of the Bar, offering in the YOUNG LAWYERS outreach to both the profession and to the public through various legal programs and projects. DIVISION WHAT CAN THE YLD DO FOR YOU? OPPORTUNITIES FOR SERVICE With a mission of service, the YLD offers many avenues for young lawyers to give back to their communities and to the profession through committee involvement. Additionally, the YLD conducts a service project at each of its general membership meetings. NETWORKING OPPORTUNITIES The activities and projects of the YLD put you in touch with lawyers in your practice area, others with similar interests and Georgia’s legislative and judicial leaders from every corner of the state. LEADERSHIP OPPORTUNITIES There are many opportunities within the YLD to develop and grow leadership skills and abilities. These include chairing a committee, serving on the YLD Executive Committee or Representative Council and applying to the Leadership Academy. WANT MORE INFO? Contact YLD Director Mary McAfee at [email protected] or visit www. georgiayld.org for more information. www.georgiayld.org ® Access next-generation legal research as a free benet of your membership with the State Bar of Georgia. Login at gabar.org Your Member Benet Includes: U.S.
    [Show full text]
  • Post-Impact Crater Modification
    Astronomers’ Observing Guides Other Titles in This Series Star Clusters and How to Observe Them Mark Allison Saturn and How to Observe It Julius Benton Nebulae and How to Observe Them Steven Coe The Moon and How to Observe It Peter Grego Supernovae and How to Observe Them Martin Mobberley Total Solar Eclipses and How to Observe Them Martin Mobberley Double & Multiple Stars and How to Observe Them James Mullaney The Herschel Objects, and How to Observe Them James Mullaney Galaxies and How to Observe Them Wolfgang Steinicke & Richard Jakiel Peter Grego Venus and Mercury, and How to Observe Them ISBN: 978-0-387-74285-4 e-ISBN: 978-0-387-74286-1 Library of Congress Control Number: 2007937298 © 2008 Springer Science+Business Media, LLC All rights reserved. This work may not be translated or copied in whole or in part without the written permission of the publisher (Springer Science+Business Media, LLC, 233 Spring Street, New York, NY 10013, USA), except for brief excerpts in connection with reviews or scholarly analysis. Use in connection with any form of information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed is forbidden. The use in this publication of trade names, trademarks, service marks, and similar terms, even if they are not identified as such, is not to be taken as an expression of opinion as to whether or not they are subject to proprietary rights. Printed on acid-free paper 987654321 springer.com Dedication For Jacy, my daughter Acknowledgements Thanks to Mike Inglis for having asked me to write this book, and for his help and advice as the project got underway.
    [Show full text]
  • Thedatabook.Pdf
    THE DATA BOOK OF ASTRONOMY Also available from Institute of Physics Publishing The Wandering Astronomer Patrick Moore The Photographic Atlas of the Stars H. J. P. Arnold, Paul Doherty and Patrick Moore THE DATA BOOK OF ASTRONOMY P ATRICK M OORE I NSTITUTE O F P HYSICS P UBLISHING B RISTOL A ND P HILADELPHIA c IOP Publishing Ltd 2000 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the publisher. Multiple copying is permitted in accordance with the terms of licences issued by the Copyright Licensing Agency under the terms of its agreement with the Committee of Vice-Chancellors and Principals. British Library Cataloguing-in-Publication Data A catalogue record for this book is available from the British Library. ISBN 0 7503 0620 3 Library of Congress Cataloging-in-Publication Data are available Publisher: Nicki Dennis Production Editor: Simon Laurenson Production Control: Sarah Plenty Cover Design: Kevin Lowry Marketing Executive: Colin Fenton Published by Institute of Physics Publishing, wholly owned by The Institute of Physics, London Institute of Physics Publishing, Dirac House, Temple Back, Bristol BS1 6BE, UK US Office: Institute of Physics Publishing, The Public Ledger Building, Suite 1035, 150 South Independence Mall West, Philadelphia, PA 19106, USA Printed in the UK by Bookcraft, Midsomer Norton, Somerset CONTENTS FOREWORD vii 1 THE SOLAR SYSTEM 1
    [Show full text]
  • Affiliate9 Poreign Societies Voluaa 1 of 2 P U B L I S H E R
    AS CAP ASCAP'S 2005 BART CLAIM PUBLISHER. MEMBERS.AND AFFILIATE9 POREIGN SOCIETIES VOLUAA 1 OF 2 P U B L I S H E R . 357 PUBLISHING (A) SIDE UP MUS1C $$ FAR BEYOND ENTERTAINMENT $3.34 CHANGE OF THE BEAST ? DAT I SMELL MUSIC 'NANA PUDD1N PUBLISHING A & N MUSIC CORP A & R MUSIC CO A A B A C A B PUBL1SHING A A KLYC 4 A A P PUBLISHING A ALIKE PUBLISHING A ALIKES MUSIC PUBLISHING A AND S MUSICAL WORKS A B & L MUS1C A B A D MUZZC PUBLISHING A B ARPEGGIO MUSIC A B GREER PUBLiSHING A B REAL MUSIC PUBLISHING A 8 U MUSiC A BAGLEY SONG COMPANY A BALLISTlc MUSIC A BETTER PUBLISHING COMPANY A BETTER TOMORROW A BIG ATTITUDE 1NC A BIG F-YOU TO THE RHYTHM A BIRD AND A BEAR PUBLISHING A BLACK CLAN INC A BLONDE TH1NG PUBLISHING A BOCK PUBLISHING A BOY AND HIS DOG A BOY NAMED HO A BROOKLYN PROIJECT A BROS A BUBBA RAMEY MUSlC A BURNABLE PUBLISHING COMPANY A C DYENASTY ENT A CAT NAMED TUNA PUBLISHING A CHUNKA MUS1C A CIRCLE OF FIFTHS MUSIC A CLAIRE M1KE MUSIC A CORDZS MUSIC A CREATIVE CHYLD ' PUBLISHING A CREATIVE RHYTHM A CROM FLIES MUSIC INC A D C Ii PRODUCTIONS A D D RECORDINGS A D G MUSICAL PUBLISHING ZNC A D HEALTHFUL LZFESTYLES A D SIMPSON OWN A DAISY 1N A 1JELLYGLASS A DAY IN DECEMBER A DAY IN PARIS MUSZC A DELTA PACIFIC PRODUCTION A DEMO DEVELOPMENT A DISC PUBLISHING A DIV1NE STRENGTH PRODUCTION A DOG NAMED KITTY PUBL1SHING A DOOKIE FONTANE EST A DOT P DOT MUS1C A DOUBLE MUSIC A DRUMMER'S LIFE P U 8 L I S H E R A DRUMMERS BEAT PUBLISHING A E AND M MUSIC A E E PRODUCTION PUBLZSHZNG A E G PUBLISHING A F B A FOUNDATION BUILDS A F ENLISTED WIDOWS HOME
    [Show full text]
  • 2021 UNC Spring Commencement: Medals, Prizes and Awards
    SPRING COMMENCEMENT MAY 2021 Medals, Prizes, and Awards THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL two thousand twenty-one commencement the university of north carolina at chapel hill MEDALS, PRIZES, and AWARDS May 2021 Student Activities Awards The Patrick F. Earey Award* Robert B. House Distinguished Callie Mauser Service Award* CHANCELLOR’S AWARDS Preeyanka Rao The Marc Adam Eisdorfer The Ernest H. Abernethy Prize Award in Linguistics* The Robert B. House Memorial in Student Publication Work* David Jackson Prize in Poetry* Stephanie Mayer Graham Trogdon Kieran Patel Anna Pogarcic Edward Kidder Graham Award* The Interfraternity Council The Peter C. Baxter Memorial Tate Rosenblatt Man of the Year Award* Prize in American Studies* Vance Brice Josh Massey Frank Porter Graham Award* Valerie Lucas The E. Eugene Jackson Award* The Bernard Boyd Memorial Prize* Tamiya Troy Robert Rhinehart Jane Craige Gray Memorial Award* Valerie Nguyễn The James M. Johnston Distinguished The Camões Prize in Portuguese* Senior Award in the Nursing Program* Nicole Donzella The Multicultural Greek Council Award* Kelsey Buckner Sophie Taylor James O. Cansler Service Award* The James M. Johnston Natalie Gauger The Boka W. Hadzija Award for Distinguished Senior Award in Distinguished University Service* the Undergraduate Program* William S. Carlton Intramural Juanita Limas Hanna Wondmagegn Sports Employee Award* Ahmed Belghith The Irvine Hagadorn Award* Brenda W. Kirby Award* Ralph Alberto Michelle Hoffner Cornelius O. Cathey Award* Parker Novak The Hampton Shuping Prize* The Mary Turner Lane Award Mary Laci Motley in Women’s and Gender Studies* The Cazel Prize for Excellence in History* Genni Eccles Kimathi Muiuri The Jacques Hardré Undergraduate Award for Excellence in French* Irene F.
    [Show full text]
  • Max-Planck-Institut Für Sonnensystemforschung
    Max-Planck-Institut für Sonnensystemforschung Max Planck Institute for Solar System Research Tätigkeitsbericht 2015 Activity Report 2015 Inhalt / Content 2 Inhalt Contents 1 Wissenschaftliche Zusammenarbeit 3 Scientific collaboration 1.1 Wissenschaftliche Gäste 3 Scientific guests 1.2 Aufenthalt von MPS-Wissenschaftlern an anderen Instituten 5 Stay of MPS scientists at other institutes 1.3 Projekte in Zusammenarbeit mit anderen Institutionen 6 Projects in collaboration with other institutions 2 Vorschläge und Anträge 32 Proposals 2.1 Projektvorschläge 32 Project proposals 2.2 Anträge auf Beobachtungszeit 34 Observing time proposals 2.3 Anträge auf Rechenzeit 36 Computing time proposals 3 Publikationen 37 Publications 3.1 Referierte Publikationen 37 Refereed publications 3.2 Doktorarbeiten 63 PhD theses 4 Vorträge und Poster 64 Talks and posters 5 Seminare 81 Seminars 6 Lehrtätigkeit 87 Lectures 7 Tagungen und Workshops 88 Conferences and workshops 7.1 Organisation von Tagungen und workshops 88 Organization of conferences and workshops 7.2 Convener bei wissenschaftlichen Tagungen 89 Convener during scientific meetings 8 Gutachtertätigkeit 90 Review work 8.1 Gutachter von Zeitschriften 90 Reviews for scientific journals 8.2 Gutachter von Vorschlägen und Anträgen 91 Reviews for proposals 9 Herausgebertätigkeit 92 Editorship 10 Mitgliedschaft in wissenschaftlichen Gremien 93 Membership in scientific councils 11 Auszeichnungen 95 Awards Wissenschaftliche Zusammenarbeit / Scientific collaborations 3 1. Wissenschaftliche Zusammenarbeit / Scientific
    [Show full text]
  • Water and Carbon Dioxide Ices-Rich Areas on Comet 67P/Cg Nucleus Surface
    ICES IN THE SOLAR SYSTEM, ESA/ESAC Madrid, Spain, 23-27 JANUARY 2017 WATER AND CARBON DIOXIDE ICES-RICH AREAS ON COMET 67P/CG NUCLEUS SURFACE Gianrico Filacchione1, Fabrizio Capaccioni1, Andrea Raponi1, Maria Cristina De Sanctis1, Mauro Ciarniello1, Maria Antonella Barucci2, Federico Tosi1, Alessandra Migliorini1, Maria Teresa Capria1, Stephane Erard2, Dominique Bockelee-Morvan2, Cedric Leyrat2, Gabriele Arnold3, David Kappel3, Thomas B. McCord4 1. INAF-IAPS, Istituto di Astrofisica e Planetologia Spaziali, Rome, ITALY. 2. LESIA, Laboratoire d’Etudes´ Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, PSL Research University, CNRS - Centre National de la Recherche Scientifique, Sorbonne Universit´es, UPMC Univ. Paris 06, Univ. Paris Diderot, Sorbonne Paris Cit´e, France FRANCE. 3. Institute for Planetary Research, DLR - Deutsches Zentrums f¨ur Luft- und Raumfahrt, Berlin, GERMANY. 4. Bear Fight Institute, Winthrop, WA, USA. ABSTRACT: So far, only two ice species have been identified by Rosetta/VIRTIS-M [1] on the surface of 67P/Churyumov-Gerasimenko during the pre-perihelion time: crystalline water and carbon dioxide ice. Water ice has been spectroscopically identified in three distinct modalities: 1) On the active areas of Hapi region where water ice changes its abundance with local time and illumination conditions, condensing during the night hours and sublimating during daytime [2]; 2) On recent debris fields collapsed from two elevated structures in the Imhotep region where more fresh and pristine material is exposed [3]; 3) On eight bright areas located in Khonsu, Imhotep, Anhur, Atum and Khepry regions [4] where single or multiple grouped icy patches with sizes ranging between few meters to about 60 m are observed.
    [Show full text]