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SPHERE: the Exoplanet Imager for the Very Large Telescope J.-L
Astronomy & Astrophysics manuscript no. paper c ESO 2019 October 4, 2019 SPHERE: the exoplanet imager for the Very Large Telescope J.-L. Beuzit1; 2, A. Vigan2, D. Mouillet1, K. Dohlen2, R. Gratton3, A. Boccaletti4, J.-F. Sauvage2; 7, H. M. Schmid5, M. Langlois2; 8, C. Petit7, A. Baruffolo3, M. Feldt6, J. Milli13, Z. Wahhaj13, L. Abe11, U. Anselmi3, J. Antichi3, R. Barette2, J. Baudrand4, P. Baudoz4, A. Bazzon5, P. Bernardi4, P. Blanchard2, R. Brast12, P. Bruno18, T. Buey4, M. Carbillet11, M. Carle2, E. Cascone17, F. Chapron4, J. Charton1, G. Chauvin1; 23, R. Claudi3, A. Costille2, V. De Caprio17, J. de Boer9, A. Delboulbé1, S. Desidera3, C. Dominik15, M. Downing12, O. Dupuis4, C. Fabron2, D. Fantinel3, G. Farisato3, P. Feautrier1, E. Fedrigo12, T. Fusco7; 2, P. Gigan4, C. Ginski15; 9, J. Girard1; 14, E. Giro19, D. Gisler5, L. Gluck1, C. Gry2, T. Henning6, N. Hubin12, E. Hugot2, S. Incorvaia19, M. Jaquet2, M. Kasper12, E. Lagadec11, A.-M. Lagrange1, H. Le Coroller2, D. Le Mignant2, B. Le Ruyet4, G. Lessio3, J.-L. Lizon12, M. Llored2, L. Lundin12, F. Madec2, Y. Magnard1, M. Marteaud4, P. Martinez11, D. Maurel1, F. Ménard1, D. Mesa3, O. Möller-Nilsson6, T. Moulin1, C. Moutou2, A. Origné2, J. Parisot4, A. Pavlov6, D. Perret4, J. Pragt16, P. Puget1, P. Rabou1, J. Ramos6, J.-M. Reess4, F. Rigal16, S. Rochat1, R. Roelfsema16, G. Rousset4, A. Roux1, M. Saisse2, B. Salasnich3, E. Santambrogio19, S. Scuderi18, D. Segransan10, A. Sevin4, R. Siebenmorgen12 C. Soenke12, E. Stadler1, M. Suarez12, D. Tiphène4, M. Turatto3, S. Udry10, F. Vakili11, L. B. F. M. Waters20; 15, L. -
Glossary Glossary
Glossary Glossary Albedo A measure of an object’s reflectivity. A pure white reflecting surface has an albedo of 1.0 (100%). A pitch-black, nonreflecting surface has an albedo of 0.0. The Moon is a fairly dark object with a combined albedo of 0.07 (reflecting 7% of the sunlight that falls upon it). The albedo range of the lunar maria is between 0.05 and 0.08. The brighter highlands have an albedo range from 0.09 to 0.15. Anorthosite Rocks rich in the mineral feldspar, making up much of the Moon’s bright highland regions. Aperture The diameter of a telescope’s objective lens or primary mirror. Apogee The point in the Moon’s orbit where it is furthest from the Earth. At apogee, the Moon can reach a maximum distance of 406,700 km from the Earth. Apollo The manned lunar program of the United States. Between July 1969 and December 1972, six Apollo missions landed on the Moon, allowing a total of 12 astronauts to explore its surface. Asteroid A minor planet. A large solid body of rock in orbit around the Sun. Banded crater A crater that displays dusky linear tracts on its inner walls and/or floor. 250 Basalt A dark, fine-grained volcanic rock, low in silicon, with a low viscosity. Basaltic material fills many of the Moon’s major basins, especially on the near side. Glossary Basin A very large circular impact structure (usually comprising multiple concentric rings) that usually displays some degree of flooding with lava. The largest and most conspicuous lava- flooded basins on the Moon are found on the near side, and most are filled to their outer edges with mare basalts. -
Technology Today Spring 2014
Spring 2014 TECHNOLOGY today® Southwest Research Institute® San Antonio, Texas Spring 2014 • Volume 35, No.2 TECHNOLOGY today COVER Director of Communications Dr. Tim Martin Editor Joe Fohn TECHNOLOGY Assistant Editor today Deborah Deffenbaugh Contributors Deb Schmid Tracey S. Whelan Design Scott Funk Photography Larry Walther Circulation Darlene Herring D019274_4431 Southwest Research Institute San Antonio, Texas About the cover A portable solar cell atop a rotating fixture has a Technology Today (ISSN 1528-431X) is published three times "moth-eye" light-absorbing coating applied inside each year and distributed free of charge. The publication a vacuum deposition chamber. discusses some of the more than 1,000 research and develop- ment projects under way at Southwest Research Institute. The materials in Technology Today may be used for educational and informational purposes by the public and the media. Credit to Southwest Research Institute should be given. This authorization does not extend to property rights such as patents. Commercial and promotional use of the contents in Technology Today without the express written consent of Southwest Research Institute is prohibited. The information published in Technology Today does not necessarily reflect the position or policy of Southwest Research Institute or its clients, and no endorsements should be made or inferred. Address correspondence to the editor, Communications Department, Southwest Research Institute, P.O. Drawer 28510, San Antonio, Texas 78228-0510, or e-mail [email protected]. To be placed on the mailing list or to make address changes, call (210) 522-2257 or fax (210) 522-3547, or visit update.swri.org. © 2014 Southwest Research Institute. -
Astronomy and Astrophysics
THE DECADE OF DISCOVERY IN ASTRONOMY AND ASTROPHYSICS Astronomy and Astrophysics Survey Committee Board on Physics and Astronomy Commission on Physical Sciences, Mathematics, and Applications National Research Council NATIONAL ACADEMY PRESS Washington, D.C. 1991 NATIONAL ACADEMY PRESS • 2101 Constitution Avenue, NW • Washington, DC 20418 NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the committee responsible for the report were chosen for their special compe_nces and with regard for appropriate balance. This report has been reviewed by a group other than the authors according to procedures approved by a Report Review Committee consisting of members of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. This project was supported by the Department of Energy under Grant No. DE-FGO5- 89ER40421, the National Aeronautics and Space Administration and the National Science Foundation under Grant No. AST-8901685, the Naval Research Laboratory under Contract No. N00173-90-M-9744, and the Smithsonian Institution under Purchase Order No. SF0022430000. Additional support was provided by the Maurice Ewing Earth and Planetary Sciences Fund of the National Academy of Sciences created through a gift from the Palisades Geophysical Institute, Inc., and an anonymous donor. Library of Congress Cataloging-in-Publication Data National Research Council (U.S.). Astronomy and Astrophysics Survey Committee. The decade of discovery in astronomy and astrophysics / Astronomy and Astrophysics Survey Committee, Board on Physics and Astronomy, Commission on Physical Sciences, Mathematics, and Applications, National Research Council. -
Appendix I Lunar and Martian Nomenclature
APPENDIX I LUNAR AND MARTIAN NOMENCLATURE LUNAR AND MARTIAN NOMENCLATURE A large number of names of craters and other features on the Moon and Mars, were accepted by the IAU General Assemblies X (Moscow, 1958), XI (Berkeley, 1961), XII (Hamburg, 1964), XIV (Brighton, 1970), and XV (Sydney, 1973). The names were suggested by the appropriate IAU Commissions (16 and 17). In particular the Lunar names accepted at the XIVth and XVth General Assemblies were recommended by the 'Working Group on Lunar Nomenclature' under the Chairmanship of Dr D. H. Menzel. The Martian names were suggested by the 'Working Group on Martian Nomenclature' under the Chairmanship of Dr G. de Vaucouleurs. At the XVth General Assembly a new 'Working Group on Planetary System Nomenclature' was formed (Chairman: Dr P. M. Millman) comprising various Task Groups, one for each particular subject. For further references see: [AU Trans. X, 259-263, 1960; XIB, 236-238, 1962; Xlffi, 203-204, 1966; xnffi, 99-105, 1968; XIVB, 63, 129, 139, 1971; Space Sci. Rev. 12, 136-186, 1971. Because at the recent General Assemblies some small changes, or corrections, were made, the complete list of Lunar and Martian Topographic Features is published here. Table 1 Lunar Craters Abbe 58S,174E Balboa 19N,83W Abbot 6N,55E Baldet 54S, 151W Abel 34S,85E Balmer 20S,70E Abul Wafa 2N,ll7E Banachiewicz 5N,80E Adams 32S,69E Banting 26N,16E Aitken 17S,173E Barbier 248, 158E AI-Biruni 18N,93E Barnard 30S,86E Alden 24S, lllE Barringer 29S,151W Aldrin I.4N,22.1E Bartels 24N,90W Alekhin 68S,131W Becquerei -
Litteratur Och Kritiker Fornvännen 1926, S
Litteratur och kritiker http://kulturarvsdata.se/raa/fornvannen/html/1926_litt Fornvännen 1926, s. Ingår i: samla.raa.se Litteratur och kritiker. L. M. BAÄTH, Hälsingborgs Historia 1. Forntiden och den äldre medeltiden. Hälsingborg 1925, 310 sid. Inom Hälsingborgs stadsfullmäktige väcktes 1911 förslag om utgivandet av en historisk redogörelse över stadens utveckling sedan dess stadsfullmäktige- institutions tillkomst, vilken tanke omsider resulterade i -utgivandet av en minnesskrift 1913. Emellertid hade planer varit å färde att komma med ett bre dare lagt arbete över stadens historia frän äldsta tider. Detta större verk skulle omfatta en allmän del och en speciell med statistik. Första delen av den av arkivarien Bäåth redigerade allmänna avdelningen föreligger nu i en diger och vackert utstyrd volym, som sysslar med stadens historia från urtiden till den nordiska äldre medeltidens slut. UNO SUNDELIUS rikt illustrerade skildring av Hälsingborgstraktens geolo giska historia bygger till stor del pä originalmaterial och blir särskilt beträffande kvartärtiden instruktiv därigenom att de lokala företeelserna ständigt ses i sitt samband med de mera omfattande, som gälla hela Skandinavien och Nordeu ropa. För arkeologer (och även andra icke geologiska fackmän) föreligger här en förträfflig orientering över de viktiga och intressanta istidsfenomenen, och i innehållsrika noter refereras de ledande istidsforskarnas divergerande åsikter om huvudproblemen. En litteraturförteckning jämte 5 kartor komplettera beskriv ningen. Antikvarien B. SCHNITTGERS -
Technology Today Spring 2016
Spring 2016 HIDDEN STRUCTURES REVEALED THE METHANE SwRI WINS CYGNSS DETECTORS R&D 100 CONSTELLATION 10 CHALLENGE 18AWARDS 22TECHNOLOGYCOMPLETE TODAY 13 AVIATION FUEL TESTING To meet the needs of the Department of Defense, the Energy Institute, and the aviation industry, SwRI maintains facilities to qualify fuel filters, develop new test methods, and enhance aviation fuel technology. The coalescer-separator shown removes dirt and water contaminants from fuel in both commercial and military fuel handling systems. SwRI works with industry organizations to develop and improve quality standards. The Institute also helps industry develop advanced sensing technologies and fuel handling equipment. AVIATION FUEL FILTRATION AVIATION FUEL MONITORS AVIATION FUEL COALESCERS AVIATION FUEL ADDITIVES WATER MAPPING TEST JET FUEL ELECTRONIC SENSOR MIL PRF 52308J ELECTRONIC SENSORS aviationturbinefuels.swri.org DM018200_6585 12 SPRING 2016 • VOLUME 37, NO. 1 Executive Director of Communications ON THE COVER Tim Martin, Ph.D. Editor 2 Hidden Structures Revealed Deb Schmid Flight control surfaces include the flaps, tabs, Assistant Editor and spoilers that allow a pilot to adjust and Rob Leibold control an aircraft’s flight attitude. Using the Contributors Institute’s recently aquired powerful CT Barbara Bowen scanner, SwRI engineers imaged the aluminum Robert Crowe honeycomb control surface to visualize its Deborah Deffenbaugh D021911 internal structure. This 3-D visualization shows Maria Stothoff a bonding layer running through the structure. Design 8 New Horizons News Jessica Vidal Photography 10 The Methane Detectors Challenge Larry Walther Ian McKinney 14 Consortia News Circulation Stephanie Paredes 16 Pluto-Jupiter Infographic 18 SwRI Wins R&D 100 Awards Technology Today (ISSN 1528-431X) is published 19 TechBytes three times each year and distributed free of charge. -
The Bursty Star Formation History of the Fornax Dwarf Spheroidal Galaxy Revealed with the HST
MNRAS 000,1–20 (2020) Preprint 12 January 2021 Compiled using MNRAS LATEX style file v3.0 The bursty star formation history of the Fornax dwarf spheroidal galaxy revealed with the HST V. Rusakov,1,2,3¢ M. Monelli,4,5 C. Gallart,4,5 T. K. Fritz,4,5 T. Ruiz-Lara,4,5,6 E. J. Bernard,7 S. Cassisi.8,9 1Department of Physics, University of Surrey, Guildford GU2 7XH, UK 2Cosmic Dawn Center (DAWN) 3Niels Bohr Institute, University of Copenhagen, Lyngbyvej 2, DK-2100 Copenhagen Ø, Denmark 4Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain 5Departamento de Astrofísica, Universidad de La Laguna, E-38205 La Laguna, Tenerife, Spain 6Kapteyn Astronomical Institute, University of Groningen, Landleven 12, 9747 AD Groningen, The Netherlands 7Universite Côte dÁzur, Observatoire de la Côte dÁzur, CNRS, Laboratoire Lagrange, France 8INAF - Astronomical Observatory of Abruzzo, Via M. Maggini, I-64100 Teramo, Italy 9INFN, Sezione di Pisa, Largo Pontecorvo 3, 56127 Pisa, Italy Accepted 2020 December 24. Received 2020 December 7; in original form 2020 February 22 ABSTRACT We present a new derivation of the star formation history (SFH) of the dSph galaxy Fornax in two central regions, characterised by unprecedented precision and age resolution. It reveals that star formation has proceeded in sharp bursts separated by periods of low-level or quies- cent activity. The SFH was derived through colour-magnitude diagram (CMD) fitting of two extremely deep Hubble Space Telescope CMDs, sampling the centre and one core radius. The attained age resolution allowed us to single out a major star formation episode at early times, a second strong burst 4.6 ± 0.4 Gyr ago and recent intermittent episodes ∼ 2 − 0.2 Gyr ago. -
Journal of the Association of Lunar & Planetary Observers
ISSN-0039-2502 Journal of the Association of Lunar & Planetary Observers The Strolling Astronomer Volume 46, Number 3, Summer 2004 Now in Portable Document Format (PDF) for MacIntosh and PC-Compatible Computers Inside. * The Perseids are coming! The Perseids are coming! And guess what — almost NO Moon this time! * Some early personal reports on the Venus transit * A report on the 1996 Jupi- ter apparition * A writeup on This Issue’s Cover: A great shot of the Venus transit by Mercury Section Coordinator the Moon’s Frank Melillo from Holtsville, NY, USA. Taken June 8, 10:40 UT (6:40 a.m. local time) using a Celestron 8-inch Schmidt-Cassegrain at f/10 equipped with a Starlight Xpress MX5 CCD Maestlin camera; exposure 0.5 second; some clouds present. For an animation of this image, go to Region http://hometown.aol.com/frankj12/specialtransitpage1.html . plus LOTS of reports about your ALPO section activities and much, much more. The Strolling Astronomer Journal of the In This Issue: Association of Lunar & Inside the ALPO Point of View: It’s Nice to be Noticed – Again..... 1 Planetary Observers, ALPO Founder Walter Haas Injured in Fall..........2 In Memoriam: Janet Mattei .................................2 The Strolling Astronomer ALPO’s L. Garrett: Asteroid Discoverer ...............2 Reminder: Address Changes ...............................2 Volume 46, No. 3, Summer 2004 Report from the ALPO Membership Secretary/ This issue published in July 2004 for distribution in both Treasurer.........................................................2 portable document format (pdf) and also hardcopy for- Interest Section Reports mat. Computing Section .........................................3 ALPO Lunar & Planetary Training Program....3 This publication is the official journal of the Association The Federation of Galaxy Explorers: The Future of Lunar & Planetary Observers (ALPO). -
Moore Et Al., 1977
JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 98, NO. E2, PAGES 3413-3429, FEBRUARY 25, 1993 SOIL TEXTURE AND GRANULOMETRY AT THE SURFACE OF MARS Audouin Dollfus and Marc Deschamps Observatoire de Paris, Meudon, France James R. Zimbelman Center for Earth and Planetary Sciences, National Air and Space Museum Smithsonian Institution, Washington, D. C. The physical behavior of the Martian surface soil has been characterized remotely by both photopolarimetry and radiometry. The degree of linear polarization defines a coefficient b which is related to the top surface soil texture and is calibrated in terms of grain size, or as a fraction of the area exhibiting uncovered clean rocks. This coefficient b was recorded with the instrument VPM (Visual Polarimeter Mars) on board Soviet orbiter MARS 5 in 1974. The radiometric thermal inertia coefficient I is essentially a measurement of the soil compaction, or an effective average particle size in the soil texture, through the few decimeters below the top surface sensed by polarimetry. The instrument IBTM (Infra Bed Thermal Mapper) was used on board the Viking spacecraft between 1976 and 1982. The polarimetric scans raked a strip covering two contrasting regions, the dark-hued Mare Erythraeum and the light-hued Thaumasia. Over these wide areas, several smaller typical terrains were characterized by the three parameters A (albedo), b (related to top surface grain size) and I (underlaying compaction or block size). The large dark region Erythraeum is characterized everywhere by a uniform polarization response, despite the large geomorphological diversity of the surface. The values of A and b indicate a ubiquitous coating or mantling with small dark grains of albedo 12.7%, with a radius of 10 to 20 urn. -
Table of Contents
PAGE: 1 PAGE: 2 Table of Contents LEXILE® MEASURE 3 Copernicus, King of Craters 870L 4 Catching Andromeda’s Light 890L 6 Merry Christmas from the Moon! 810L ©Highlights for Children, Inc. This item is permitted to be used by a teacher or educator free of charge for classroom use by printing or photocopying one copy for each student in the class. Highlights® Fun with a Purpose® ISBN 978-1-62091-227-0 PAGE: 32 object—either a rocky asteroid or an icy comet—was more than a mile in diameter. Still, there are larger craters on the Moon, so why is Copernicus special? The answer is simple: because the crater faces Earth directly, it looks nice and round, exactly the way everyone thinks a crater should look. But what really makes Coper- nicus special is its halo of rays. These wispy streamers stretch outward in every direction. Like the crater itself, they are brightest when the Moon is full. Take a close look at these feather-like Copernicus splashes. When a big object blasts out a crater, the smallest particles travel farthest from the point of impact. This spray of rock then falls in a splash pattern onto the lunar surface. This material looks bright because it’s made up of crushed and broken rock, which Copernicus, King of Craters By Edmund A. Fortier On the Moon, this crater rules. The best-known impact crater on to the left of the Moon’s center. reflects light better than the dust- Earth is Meteor Crater. It is You’ll see a small bright spot covered lava plain. -
Jjmo News 06 19.Pdf
alactic Observer John J. McCarthy Observatory G Volume 12, No. 6 June 2019 GalacticGalactic MerMergggererers --s DancingDancing withwith thethe STSTARSARS AAAor PLANET Deadly Dos-I-Dos? IS BORN See page 18 inside http://www.mccarthyobservatory.org JJMO June 2019 • 1 The John J. McCarthy Observatory Galactic Observvvererer New Milford High School Editorial Committee 388 Danbury Road Managing Editor New Milford, CT 06776 Bill Cloutier Phone/Voice: (860) 210-4117 Phone/Fax: (860) 354-1595 Production & Design www.mccarthyobservatory.org Allan Ostergren Website Development JJMO Staff Marc Polansky It is through their efforts that the McCarthy Observatory has established itself as a significant educational and Technical Support recreational resource within the western Connecticut Bob Lambert community. Dr. Parker Moreland Steve Barone Peter Gagne Marc Polansky Colin Campbell Louise Gagnon Joe Privitera Dennis Cartolano John Gebauer Danielle Ragonnet Route Mike Chiarella Elaine Green Monty Robson Jeff Chodak Jim Johnstone Don Ross Bill Cloutier Carly KleinStern Gene Schilling Doug Delisle Bob Lambert Katie Shusdock Cecilia Detrich Roger Moore Jim Wood Dirk Feather Parker Moreland, PhD Paul Woodell Randy Fender Allan Ostergren Amy Ziffer In This Issue "OUT THE WINDOW ON YOUR LEFT .................................... 3 SUNRISE AND SUNSET ...................................................... 13 KIES PI LAVA DOME ....................................................... 4 SUMMER NIGHTS ........................................................... 13