School of Physics and Astronomy – Yearbook 2020
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ANNUAL REPORT 2017 THERE NOW ARE 4,256 SATELLITES ORBITING the PLANET, “There Was Nowhere to Go but 179 More Than a Year Ago
ANNUAL REPORT 2017 THERE NOW ARE 4,256 SATELLITES ORBITING THE PLANET, “There was nowhere to go but 179 more than a year ago. Of the current total, 1,419 are operational. everywhere, so just keep on The number of satellites has grown impressively since KSAT had its rolling under the stars.” first satellite contact the night of May 17, 1968. JACK KEROUAC (1922-1969) IN “ON THE ROAD” KSAT has changed over the 15 years success for KSAT depends on its teams, Station in 1967 and the first contact we have been in operation. We’ve and partly because experience suggests in 1968. It’s worth remembering that consistently added to our portfolio of that we should take the best of the past this took place only 10 years after the That first satellite contact from Tromsø, Los Angeles, USA. Lamentably, our activities and sought synergies between with us when we prepare for the future. first satellites were launched. One of Norway triggered an industrial develop- Canadian station in Inuvik, NWT still our business areas. Whenever Satellite Hence, in 2017, we continued to focus the first Norwegian computers was ment that became Kongsberg Satellite awaits Canadian Government licenses Operations supports a new mission, it on customers, unconventional and installed at KSAT and paved the way Services (KSAT), now the world’s largest to attain operational status. The total also creates an opportunity for the flexible solutions, and technological for the digital revolution in Norway. ground station service provider. That number of antennas has grown to 138 Energy, Environment and Security development. -
The New Generation Planetary Population Synthesis (NGPPS). II
Astronomy & Astrophysics manuscript no. pop c ESO 2020 July 14, 2020 The New Generation Planetary Population Synthesis (NGPPS) II. Planetary population of solar-like stars and overview of statistical results? Alexandre Emsenhuber1; 2, Christoph Mordasini2, Remo Burn2, Yann Alibert2, Willy Benz2, and Erik Asphaug1 1 Lunar and Planetary Laboratory, University of Arizona, 1629 E. University Blvd., Tucson, AZ 85721, USA e-mail: [email protected] 2 Physikalisches Institut, Universität Bern, Gesselschaftsstrasse 6, 3012 Bern, Switzerland Received DD MMM YYYY / Accepted DD MMM YYYY ABSTRACT Context. Planetary formation and evolution is a combination of multiple processes that are interlinked. These processes are not known in detail and many uncertainties remain. Constraining the formation and evolution mechanisms observationally requires statistical comparison to a large diversity of planetary systems. Aims. We want to understand the global observable consequences of different physical processes (accretion, migration, and interac- tions) and initial properties (such as disc masses and metallicities) on the demographics of the planetary population. We also want to study the convergence of our scheme with respect to one initial condition, the initial number of planetary embryo in each disc. Methods. We select distributions of initial conditions that are representative of known protoplanetary discs. Then, we use the Gener- ation III Bern model to perform planetary population synthesis. We synthesise five populations with each a different initial number of Moon-mass embryos per disc: 1, 10, 20, 50, and 100. The last is our nominal planetary population consisting of 1000 stars (systems) that we use to provide an extensive statistical analysis of the planetary systems around 1 M stars. -
Space News Update – May 2019
Space News Update – May 2019 By Pat Williams IN THIS EDITION: • India aims to be 1st country to land rover on Moon's south pole. • Jeff Bezos says Blue Origin will land humans on moon by 2024. • China's Chang'e-4 probe resumes work for sixth lunar day. • NASA awards Artemis contract for lunar gateway power. • From airport to spaceport as UK targets horizontal spaceflight. • Russian space sector plagued by astronomical corruption. • Links to other space and astronomy news published in May 2019. Disclaimer - I claim no authorship for the printed material; except where noted (PW). INDIA AIMS TO BE 1ST COUNTRY TO LAND ROVER ON MOON'S SOUTH POLE India will become the first country to land a rover on the Moon's the south pole if the country's space agency "Indian Space Research Organisation (ISRO)" successfully achieves the feat during the country's second Moon mission "Chandrayaan-2" later this year. "This is a place where nobody has gone. All the ISRO missions till now to the Moon have landed near the Moon's equator. Chandrayaan-2, India’s second lunar mission, has three modules namely Orbiter, Lander (Vikram) & Rover (Pragyan). The Orbiter and Lander modules will be interfaced mechanically and stacked together as an integrated module and accommodated inside the GSLV MK-III launch vehicle. The Rover is housed inside the Lander. After launch into earth bound orbit by GSLV MK-III, the integrated module will reach Moon orbit using Orbiter propulsion module. Subsequently, Lander will separate from the Orbiter and soft land at the predetermined site close to lunar South Pole. -
100Cias@Uned
100cias@uned Nº 7 (2014) Vida Científica ISSN: 1989-7189 EFEMÉRIDES considerable en el espacio, ni estaba previsto este aspec- to, hasta que dos destacados científicos, Pierre Auger, de Francia y Edoardo Amaldi, de Italia, dieron el primer 50º ANIVERSARIO DE ESRO/ELDO/ESA paso hacia un esfuerzo europeo conjunto en el sector de En el pasado año 2014 ha tenido lugar un importante la exploración espacial. Amaldi sugirió que la puesta en evento para la comunidad científica de investigación y órbita de satélites europeos revestiría una importancia exploración espacial: la celebración del 50º aniversario capital para todos los países del continente. El modelo de la fundación de la Organización Europea para la In- para esta nueva iniciativa, basado en el del CERN (Orga- vestigación Espacial (European Space Research Organi- nización europea para la investigación nuclear), del que zation, ESRO) que, junto con la Organización Europea Amaldi y Auger eran fundadores, se regiría sobre la base para el Desarrollo de Lanzaderas (European Launcher de principios científicos y técnicos y no sobre argumen- Development Organisation, ELDO), daría lugar a la crea- tos políticos y comerciales. ción de la Agencia Espacial Europea (European Spatial Amaldi, en 1959, sugirió crear una Organización Eu- Agence, ESA). Se han celebrado, por tanto, cincuenta ropea para la Investigación Espacial en un plazo de cin- años de éxitos en la exploración del espacio, desde que co años. Su idea despertó el interés de la comunidad Europa decidió cooperar oficialmente en el ámbito de la científica y en enero de 1960 los representantes de los investigación espacial. Se trata de un aniversario muy estados interesados se reunieron en el Comité para la especial para todo el sector espacial europeo, que puede Investigación Espacial en Niza (Francia), donde Sir Ha- estar orgulloso de sus logros. -
Magnetospheres of the Outer Planets 2009
Magnetospheres of the Outer Planets 2009 27 - 31 July 2009 Institute of Geophysics and Meteorology, University of Cologne, Cologne Germany i The Magnetospheres of the Outer Planets 2009 meeting is organized by Joachim Saur (Institute of Geophysics and Meteorology, University of Cologne). The Science Program Committee: • Fran Bagenal (University of Colorado) • Emma Bunce (University of Leicester) • John Clarke (Boston University) • Michele Dougherty (Imperial College) • Tom Hill (Rice University) • Margaret Kivelson (University of California, Los Angeles) • William Kurth (University of Iowa) • Donald Mitchell (APL, Johns Hopkins University) • Fritz Neubauer (University of Cologne) • Carol Paty (Georgia Institute of Technology) • Kurt Retherford (Southwest Research Institute) • Joachim Saur (University of Cologne) • Philippe Zarka (Observatoire de Paris) The Local Organizing Committee at the University of Cologne: • Cäcilia Anstötz • Sven Jacobsen • Anna Müller • Joachim Saur • Sven Simon • Lex Wennmacher ii Sunday 26th July, 2009 18:00 - 20:00 Registration/Reception (Includes Food) Monday 27th July, 2009 08:45 - 09:00 Welcome by J. Saur 09:00 - 10:15 Jupiter Time 1st Author Chair: J. Clarke Page 09:00 Feldman P. D. FUSE Observations of Jovian Aurora at the 3 Time of the New Horizons Flyby 09:15 Tao C. Characteristics of coupling current and rota- 4 tional dynamics in the Jovian magnetosphere- ionosphere-thermosphere model 09:30 Alexeev I. I. Dependence of the Jupiter magnetosphere size 5 on the plasma magnetodisk parameters and on the solar wind dynamic pressure 09:45 Steffl A. J. MeV Electrons in the Jovian Magnetosphere De- 6 tected by the Alice UV Spectrograph Aboard New Horizons 10:00 Radioti A. Auroral signatures of flow bursts released during 7 substorm-like events in the Jovian magnetotail 10:15 - 10:45 Break 10:45 - 12:00 Io: Flux-tube, Footprints and Torus Time 1st Author Chair: F. -
Desind Finding
NATIONAL AIR AND SPACE ARCHIVES Herbert Stephen Desind Collection Accession No. 1997-0014 NASM 9A00657 National Air and Space Museum Smithsonian Institution Washington, DC Brian D. Nicklas © Smithsonian Institution, 2003 NASM Archives Desind Collection 1997-0014 Herbert Stephen Desind Collection 109 Cubic Feet, 305 Boxes Biographical Note Herbert Stephen Desind was a Washington, DC area native born on January 15, 1945, raised in Silver Spring, Maryland and educated at the University of Maryland. He obtained his BA degree in Communications at Maryland in 1967, and began working in the local public schools as a science teacher. At the time of his death, in October 1992, he was a high school teacher and a freelance writer/lecturer on spaceflight. Desind also was an avid model rocketeer, specializing in using the Estes Cineroc, a model rocket with an 8mm movie camera mounted in the nose. To many members of the National Association of Rocketry (NAR), he was known as “Mr. Cineroc.” His extensive requests worldwide for information and photographs of rocketry programs even led to a visit from FBI agents who asked him about the nature of his activities. Mr. Desind used the collection to support his writings in NAR publications, and his building scale model rockets for NAR competitions. Desind also used the material in the classroom, and in promoting model rocket clubs to foster an interest in spaceflight among his students. Desind entered the NASA Teacher in Space program in 1985, but it is not clear how far along his submission rose in the selection process. He was not a semi-finalist, although he had a strong application. -
A Note on the Ring Current in Saturn's Magnetosphere
c Annales Geophysicae (2003) 21: 661–669 European Geosciences Union 2003 Annales Geophysicae A note on the ring current in Saturn’s magnetosphere: Comparison of magnetic data obtained during the Pioneer-11 and Voyager-1 and -2 fly-bys E. J. Bunce and S. W. H. Cowley Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH, UK Received: 21 August 2002 – Revised: 26 November 2002 – Accepted: 6 December 2002 Abstract. We examine the residual (measured minus inter- and exited on the dawn side, with Pioneer-11 and Voyager-2 nal) magnetic field vectors observed in Saturn’s magneto- exiting nearly along the dawn meridian, while Voyager-1 ex- sphere during the Pioneer-11 fly-by in 1979, and compare ited further down the tail (e.g. Smith et al., 1980a; Ness et al., them with those observed during the Voyager-1 and -2 fly- 1981, 1982). One of the main features of the magnetic field bys in 1980 and 1981. We show for the first time that a ring in the central parts of the magnetosphere observed in Voyager current system was present within the magnetosphere dur- data was the signature of a substantial “ring current” carried ing the Pioneer-11 encounter, which was qualitatively simi- by charged particles of the magnetospheric plasma. The ex- lar to those present during the Voyager fly-bys. The analysis istence of this current was first recognised from depressions also shows, however, that the ring current was located closer in the strength of the field below that expected for the inter- to the planet during the Pioneer-11 encounter than during nal field of the planet alone (Ness et al., 1981, 1982), and the comparable Voyager-1 fly-by, reflecting the more com- was subsequently modelled in some detail by Connerney et pressed nature of the magnetosphere at the time. -
Determining the True Mass of Radial-Velocity Exoplanets with Gaia F
Determining the true mass of radial-velocity exoplanets with Gaia F. Kiefer, G. Hébrard, A. Lecavelier Des Etangs, E. Martioli, S. Dalal, A. Vidal-Madjar To cite this version: F. Kiefer, G. Hébrard, A. Lecavelier Des Etangs, E. Martioli, S. Dalal, et al.. Determining the true mass of radial-velocity exoplanets with Gaia: Nine planet candidates in the brown dwarf or stellar regime and 27 confirmed planets. Astronomy and Astrophysics - A&A, EDP Sciences, 2021, 645, pp.A7. 10.1051/0004-6361/202039168. hal-03085694 HAL Id: hal-03085694 https://hal.archives-ouvertes.fr/hal-03085694 Submitted on 21 Dec 2020 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. A&A 645, A7 (2021) Astronomy https://doi.org/10.1051/0004-6361/202039168 & © F. Kiefer et al. 2020 Astrophysics Determining the true mass of radial-velocity exoplanets with Gaia Nine planet candidates in the brown dwarf or stellar regime and 27 confirmed planets? F. Kiefer1,2, G. Hébrard1,3, A. Lecavelier des Etangs1, E. Martioli1,4, S. Dalal1, and A. Vidal-Madjar1 1 Institut d’Astrophysique de Paris, Sorbonne -
<> CRONOLOGIA DE LOS SATÉLITES ARTIFICIALES DE LA
1 SATELITES ARTIFICIALES. Capítulo 5º Subcap. 10 <> CRONOLOGIA DE LOS SATÉLITES ARTIFICIALES DE LA TIERRA. Esta es una relación cronológica de todos los lanzamientos de satélites artificiales de nuestro planeta, con independencia de su éxito o fracaso, tanto en el disparo como en órbita. Significa pues que muchos de ellos no han alcanzado el espacio y fueron destruidos. Se señala en primer lugar (a la izquierda) su nombre, seguido de la fecha del lanzamiento, el país al que pertenece el satélite (que puede ser otro distinto al que lo lanza) y el tipo de satélite; este último aspecto podría no corresponderse en exactitud dado que algunos son de finalidad múltiple. En los lanzamientos múltiples, cada satélite figura separado (salvo en los casos de fracaso, en que no llegan a separarse) pero naturalmente en la misma fecha y juntos. NO ESTÁN incluidos los llevados en vuelos tripulados, si bien se citan en el programa de satélites correspondiente y en el capítulo de “Cronología general de lanzamientos”. .SATÉLITE Fecha País Tipo SPUTNIK F1 15.05.1957 URSS Experimental o tecnológico SPUTNIK F2 21.08.1957 URSS Experimental o tecnológico SPUTNIK 01 04.10.1957 URSS Experimental o tecnológico SPUTNIK 02 03.11.1957 URSS Científico VANGUARD-1A 06.12.1957 USA Experimental o tecnológico EXPLORER 01 31.01.1958 USA Científico VANGUARD-1B 05.02.1958 USA Experimental o tecnológico EXPLORER 02 05.03.1958 USA Científico VANGUARD-1 17.03.1958 USA Experimental o tecnológico EXPLORER 03 26.03.1958 USA Científico SPUTNIK D1 27.04.1958 URSS Geodésico VANGUARD-2A -
Exoplanet Demographics Conference November 9-13, 2020 Tuesday Talk Abstracts
Exoplanet Demographics Conference November 9-13, 2020 Tuesday Talk Abstracts Small Planets Low-mass Exoplanet Demographics - Daniel Jontof-Hutter (Univ. of the Pacific) Exoplanet science is advancing rapidly on many fronts following the detection of thousands of planets, particularly from transit surveys. Precise stellar characterization has revealed the bimodal planetary size distribution, and has enabled precise planetary mass measurements with radial velocities and transit timing. Over 120 exoplanets less massive than 30 Earths have measured masses and radii (Jontof-Hutter, 2019, AREPS, 47, 141), and a remarkably diverse range of bulk densities among these exoplanets has been revealed. Planetary mass and radius characterization has also entered the terrestrial regime- over 30 exoplanets smaller than 1.6 Earth-radii have detected masses, and planets as small as Mars now populate the mass-radius diagram. In this review, we summarize the progress that has been made in characterizing this diverse population: where planet sizes and incident fluxes inform on bulk planet properties, where compositions by volume are dominated by volatiles and where bulk planet properties within individuals systems differ substantially. To some extent, however, detection biases prevent individual characterizations from revealing underlying planet demographics. We review progress to correct for these biases in determining distributions of planet properties. Looking forward, planetary system demographics will require observations to probe system architectures beyond the compact configurations that have been detected close to stellar hosts. A small number of compact multi-transiting systems show evidence of additional planets from radial velocities, and observing campaigns to detect non-transiting planets that orbit beyond the known planets have begun. -
Table of Contents 1 Scientific/Technical/Management
Table of contents 1 Scientific/technical/management section (15 pages) 2 References 17 Data Management Plan 21 Biographical Sketch for PI Marissa Vogt 22 Biographical Sketch for Co-I Krishan Khurana 25 Biographical Sketch for Collaborator Emma Bunce 26 Biographical Sketch for Collaborator Jonathan Nichols 27 Current and Pending Support for PI Marissa Vogt 28 Current and Pending Support for Co-I Krishan Khurana 29 Budget Narrative and Table of Personnel and Work Effort 31 1 Magnetosphere-ionosphere coupling at Jupiter: Modeling the effects of temporal and local time variability The goal of the proposed work is to quantify how magnetosphere-ionosphere coupling at Jupiter is affected by 1) local time asymmetries in the magnetosphere and 2) temporal variability related to the internal mass loading from Io and external forcing from the solar wind. In order to achieve this goal, we will combine data analysis from the Galileo spacecraft and the Hubble Space Telescope with computational models. The results of this work will improve our understanding of spatial and temporal variability in the brightness and location of Jupiter’s main emission, which has implications for magnetosphere-ionosphere coupling in other rotation-dominated planetary systems. 1. Introduction Auroral emissions are observed on planets and moons throughout the solar system. As a visible manifestation of magnetosphere-ionosphere (M-I) coupling, auroral emissions provide an excellent method for remotely sensing a planet’s local magnetic field and plasma environment. Jupiter’s UV auroral emissions, produced by excitation of atmospheric H2 and H by precipitating electrons, are the brightest in the solar system at more than 1014 Watts (e.g. -
The Derby and District Astronomical Society PROFESSOR EMMA
The Derby and District Astronomical Society Friday 4 th SEPTEMBER - 7:30pm PROFESSOR EMMA BUNCE OCEANS, ICES & FIRE THE MYSTERIOUS MOONS OF JUPITER The talk will take place at the Friend’s Meeting House, St Helen’s Street, Derby, DE1 3GY. Please note that the fee for non members is £3. Jupiter has many natural satellites, more than 60 in total but when people talk about the Jovian moons they are speaking of the Galilean moons, they have changed the way we view the Universe: Fiery Io, Smooth Icy Europa, Planet-sized Ganymede and scar-covered Callisto. Not only are they fascinating in their own right, but together they form a Solar System in miniature around majestic Jupiter, interacting with their parent planet and he surrounding environment through the forces of gravity and electromagnetism. The spectacular results of these processes range from sub-surface oceans to auroral emissions. This talk will introduce th basic properties of these mysterious moons and showcase the recently selected European Space Agency mission, the JUpiter ICy moons Explorer, (JUICE), which will tour Jupiter, make multiple visits to Europa and Callisto and finally be the first spacecraft to orbit Icy Ganymede. Please note that occasionally due to events beyond the control of the Society there may be changes made to this programme. For the latest information please refer to the DDAS Website - http://www.derbyastronomy.org Professor Emma Bunce Emma started her career 20 years ago at the University of Leicester where she completed her 4yr Undergraduate Degree in Physics with Space Science and Technology. She was awarded her PhD in 2001 studying the magnetosphere of Jupiter and on her thesis entitled “large-scale current systems in the Jovian Magnetosphere”.