Jean-Baptiste-Camille Corot Ville-D'avray 1865
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Archeology in the Fontainebleau Forest François BEAUX
Archeology in the Fontainebleau Forest François BEAUX If you examine closely an archeological map showing all artifacts remaining from the ancient times in the South of the Seine-et-Marne department, you will see an « archeological hole » in the Fontainebleau Forest area. The dryness of the soil and the overall lack of water were in fact responsible for the very poor settlement rates of prehistorian and later humans in that area. Actually the late king Saint Louis (Louis the 9th), when speaking about this wood, said « my dear deserts ». Only some places nearby the Seine river, the Loing river and the water sources of the Ru de Changis were inhabitated. About the small hunting pavilion situated nerby the Fountain Belle Eau (or Belleau or Bliaud ?) we know nothing but that it was one of the ancient sites of settlement ; and that it gave birth to the future castle and later palace with the town around. However, the people dwelling around frequenly traveled through this area ; they left us many objects and traces on the stones proving their presence and showing that the forest (which was then called « Sylva Biera », i.e. « wood of Bière ») was not devoid of humans. PALEOLITHIC ERA (before 10,000 B.C.) Silex fragments and cut stones typical of the mousterian age with traces of cutting of the « Levallois » type have been found during a pedologic search in 1974 near the big cross of the Grand Veneur. Another fragment of the same type has been found at the Long Rocher site (figure 1). Those two artifacts are dated from the middle Paleolithic, i.e. -
Asteroseismology with Corot, Kepler, K2 and TESS: Impact on Galactic Archaeology Talk Miglio’S
Asteroseismology with CoRoT, Kepler, K2 and TESS: impact on Galactic Archaeology talk Miglio’s CRISTINA CHIAPPINI Leibniz-Institut fuer Astrophysik Potsdam PLATO PIC, Padova 09/2019 AsteroseismologyPlato as it is : a Legacy with CoRoT Mission, Kepler for Galactic, K2 and TESS: impactArchaeology on Galactic Archaeology talk Miglio’s CRISTINA CHIAPPINI Leibniz-Institut fuer Astrophysik Potsdam PLATO PIC, Padova 09/2019 Galactic Archaeology strives to reconstruct the past history of the Milky Way from the present day kinematical and chemical information. Why is it Challenging ? • Complex mix of populations with large overlaps in parameter space (such as Velocities, Metallicities, and Ages) & small volume sampled by current data • Stars move away from their birth places (migrate radially, or even vertically via mergers/interactions of the MW with other Galaxies). • Many are the sources of migration! • Most of information was confined to a small volume Miglio, Chiappini et al. 2017 Key: VOLUME COVERAGE & AGES Chiappini et al. 2018 IAU 334 Quantifying the impact of radial migration The Rbirth mix ! Stars that today (R_now) are in the green bins, came from different R0=birth Radial Migration Sources = bar/spirals + mergers + Inside-out formation (gas accretion) GalacJc Center Z Sun R Outer Disk R = distance from GC Minchev, Chiappini, MarJg 2013, 2014 - MCM I + II A&A A&A 558 id A09, A&A 572, id A92 Two ways to expand volume for GA • Gaia + complementary photometric information (but no ages for far away stars) – also useful for PIC! • Asteroseismology of RGs (with ages!) - also useful for core science PLATO (miglio’s talk) The properties at different places in the disk: AMR CoRoT, Gaia+, K2 + APOGEE Kepler, TESS, K2, Gaia CoRoT, Gaia+, K2 + APOGEE PLATO + 4MOST? Predicon: AMR Scatter increases towards outer regions Age scatter increasestowars outer regions ExtracGng the best froM GaiaDR2 - Anders et al. -
Multiple Star Systems Observed with Corot and Kepler
Multiple star systems observed with CoRoT and Kepler John Southworth Astrophysics Group, Keele University, Staffordshire, ST5 5BG, UK Abstract. The CoRoT and Kepler satellites were the first space platforms designed to perform high-precision photometry for a large number of stars. Multiple systems dis- play a wide variety of photometric variability, making them natural benefactors of these missions. I review the work arising from CoRoT and Kepler observations of multiple sys- tems, with particular emphasis on eclipsing binaries containing giant stars, pulsators, triple eclipses and/or low-mass stars. Many more results remain untapped in the data archives of these missions, and the future holds the promise of K2, TESS and PLATO. 1 Introduction The CoRoT and Kepler satellites represent the first generation of astronomical space missions capable of large-scale photometric surveys. The large quantity – and exquisite quality – of the data they pro- vided is in the process of revolutionising stellar and planetary astrophysics. In this review I highlight the immense variety of the scientific results from these concurrent missions, as well as the context provided by their precursors and implications for their successors. CoRoT was led by CNES and ESA, launched on 2006/12/27,and retired in June 2013 after an irre- trievable computer failure in November 2012. It performed 24 observing runs, each lasting between 21 and 152days, with a field of viewof 2×1.3◦ ×1.3◦, obtaining light curves of 163000 stars [42]. Kepler was a NASA mission, launched on 2009/03/07and suffering a critical pointing failure on 2013/05/11. It observed the same 105deg2 sky area for its full mission duration, obtaining high-precision light curves of approximately 191000 stars. -
Data Mining in the Spanish Virtual Observatory. Applications to Corot and Gaia
Highlights of Spanish Astrophysics VI, Proceedings of the IX Scientific Meeting of the Spanish Astronomical Society held on September 13 - 17, 2010, in Madrid, Spain. M. R. Zapatero Osorio et al. (eds.) Data mining in the Spanish Virtual Observatory. Applications to Corot and Gaia. Mauro L´opez del Fresno1, Enrique Solano M´arquez1, and Luis Manuel Sarro Baro2 1 Spanish VO. Dep. Astrof´ısica. CAB (INTA-CSIC). P.O. Box 78, 28691 Villanueva de la Ca´nada, Madrid (Spain) 2 Departamento de Inteligencia Artificial. ETSI Inform´atica.UNED. Spain Abstract Manual methods for handling data are impractical for modern space missions due to the huge amount of data they provide to the scientific community. Data mining, understood as a set of methods and algorithms that allows us to recover automatically non trivial knowledge from datasets, are required. Gaia and Corot are just a two examples of actual missions that benefits the use of data mining. In this article we present a brief summary of some data mining methods and the main results obtained for Corot, as well as a description of the future variable star classification system that it is being developed for the Gaia mission. 1 Introduction Data in Astronomy is growing almost exponentially. Whereas projects like VISTA are pro- viding more than 100 terabytes of data per year, future initiatives like LSST (to be operative in 2014) and SKY (foreseen for 2024) will reach the petabyte level. It is, thus, impossible a manual approach to process the data returned by these surveys. It is impossible a manual approach to process the data returned by these surveys. -
Seeing and Tagging Things in Pictures
MICHAEL HANCHER Seeing and Tagging Things in Pictures What men or gods are these? What maidens loth? What mad pursuit? What struggle to escape? What pipes and timbrels? What wild ecstasy? —John Keats, ‘‘Ode on a Grecian Urn’’ Tagging Magritte A RT UK, FORMERLY KNOWN AS Your Paintings, is an ambitious project to document and make accessible online all the paintings that are held by public museums in Great Britain. Launched at the National Gallery in June 2011, it was initially supported by the British Broadcasting Corpo- ration and the Public Catalogue Foundation (now also renamed Art UK), a registered charity established in 2003.1 By August 2015, more than two hundred thousand paintings had been photographed for the project’s data- base.2 Basic metadata for each painting was supplied by museum profes- sionals, but more detailed metadata was crowdsourced by online volunteers, who ‘‘tagged’’ individual images with descriptive terms that could be entered in a search engine to call up relevant paintings. An interim history of the project noted that economy was a major incentive for the crowdsourcing: ‘‘It was obvious that it would be prohibitively expensive to pay expert fine art cataloguers to describe all 200,000 paintings systematically and that some sort of voluntary system would have to be devised.’’ Crowdsourcing prom- ised the contributing museums other benefits as well, including ‘‘the poten- tial to engage both existing and new audiences,’’ and the discovery of vernacular (rather than expert) search terms responsive to the interests of ‘‘the widest set of potential users.’’3 abstract Despite modernist precepts, digital projects that use crowdsourcing to annotate large collections of images of paintings and book illustrations with ‘‘tags’’ have encouraged viewers to see things in pictures and to say what they see. -
Photometry of Be Stars in the Vicinity of COROT Primary Targets for Asteroseismology
Comm. in Asteroseismology Vol. 143, 2003 Photometry of Be stars in the vicinity of COROT primary targets for asteroseismology J. Guti´errez-Soto1, J. Fabregat1, J. Suso2, A.M. Hubert3, M. Floquet3 and R. Garrido4 1 Observatori Astron`omic, Universitat de Val`encia 2 Instituto Ciencia de los Materiales, Universitat de Val`encia 3GEPI, Observatoire de Paris-Meudon 4Instituto de Astrof´ısica de Andaluc´ıa Abstract We present differential photometry of Be stars close to potential COROT pri- mary targets for asteroseismology. Several stars are found to be short pe- riod variables. We propose them to be considered as secondary targets in the COROT asteroseismology fields. Introduction The observation of classical Be stars by COROT will provide important keys to understand the physics of these objects and the nature of the Be phenomenon. In particular, the detection of photospheric multiperiodicity will confirm the presence of non radial pulsations (nrp) as the origin of the short term variability. COROT observations will allow the study of the beat phenomenon of nrp modes and its relation with recurrent outbursts and the building of the circumstellar disc. Our group is proposing the observation of Be stars as secondary targets for the asteroseismology fields. A sample of stars in the vicinity of the main target candidates is under study for this purpose. Hubert et al. (2001, 2003) presented the selected objects and performed a study of their short term variability using Hipparcos photometric data. We have obtained new ground based photometry with a more suitable time sampling to further characterize their variability. 2 Photometry of Be stars in the vicinity of COROT primary targets for asteroseismology Observations and data analysis Observations were done at the 0.9 m telescope of the Observatorio de Sierra Nevada (Granada, Spain). -
2014 Science with the Hubble Space
Beyond HST: The Universe in High-Definition – UVOIR Space Astronomy in 2030 Julianne Dalcanton & Marc Postman Science with HST IV Meeting Rome, Italy March 18, 2014 Long History of Large Space UVOIR Telescope Concepts • VLST – 10m-16m concept (ca. 1989) • SUVO – 4m concept (ca. 1998-1999) • Workshop on 10m - 30m VLST (2003) • MUST – 10m concept (ca. 2004-2005) • ATLAST – 8m-16m concepts (ca. 2008-2010) • EUVO – European 8m concept (ca. 2013) • Modular Assembled 20m concept (ca. 2013) Scientifically compelling for over 2 decades! (Average Aperture Diameter – 13.5 meters) “Can we find another planet like Earth orbiting a nearby star? To find such a planet would complete the revolution, started by Copernicus nearly 500 years ago, that displaced the Earth as the center of the universe… The observational challenge is great but armed with new technologies… astronomers are poised to rise to it.” - U.S. 2010 Astronomy Decadal Review This is a question whose answer is sought by all of humanity and the search will demand international cooperation. The path has been laid ! for characterizing Earth 2.0 Kepler Hubble Spitzer CoRoT Ground-based Coronagraphs Gaia WFIRST 30-m class telescopes TESS JWST PLATO !"#$%&'('$)*+%&'($,)(%&$+-%$%&'('./$ Thick Atmosphere Methane Oxygen Fraction with terrestrial planets = !Earth FractionWater with detectable biosignature = fBio OpticalIf : ! Near-Infrared $ f ~ 1 then D ~ 4m Earth Bio0'12'($('#-2%#$ 8-meterTel 16-meter The signature of life is encoded inf the < 1 then D 8m spectrum! Earthof the Earth$ Bio $ tel ~ 70 !Earth $ fBio << 1 then DTel ~ 16m a > 12 Earths $ 60 50 40 30 # 4 Earths 20 4-meter 10 of total integration time of total integration time 0 Above: Distribution of all FGK stars within 45 pc of the Sun Number of Exo-Earths in 1 year 2-m 4-m 8-m 16-m where a R=70 spectrum of an Earth-twin could be acquired Telescope Size in <500 ksec shown as a function of telescope aperture. -
Brochure Anglais
EXCEPTIONAL STAYS IN FONTAINEBLEAU 5 GOOD REASONS TO DISCOVER THE FONTAINEBLEAU REGION An Exceptional Forest® The Fontainebleau forest is recognized by UNESCO as a World Biosphere Reserve, unique in its kind and is a source of endless joy for nature lovers and a home to over 1,200 animal species and a variety of splendid landscapes. True home of kings & Emperors Listed as World Heritage Site by UNESCO, the Chäteau de Fontainebleau is the only palace to have been occupied by all French sovereigns from the 12th to 19th Centuries : 34 kings, 2 emperors, 1 500 rooms, 8 centuries of French history. The imperial Héritage With its palace, squares and church, Fontainebleau remains a timeless vacation destination. The French 'Art de Vivre' Refined gastronomy, outstanding craftmanship, elegant tableware and cultural liveliness are just some of the qualities that bring such prestige to our region. The Birthplace of Impressionism Barbizon, Bourron-Marlotte, Samois sur Seine : you're in the right place to discover the world of painters from the Barbizon school, the precursors of Impressionism. F O N T A I N E B L E A U T O U R I S M E | 2 0 1 9 DESTINATION CULTURE Discover the Chateau de Fontainebleau and the history of France Guided Tour of the Grand Appartements The tour leads you through the Renaissance rooms of the Grands Appartements where the visitors can see the sumptuous lifestyle of the great sovereigns of France as Fontainebleau was their favorite holiday residence ! Price: from €18,50 per person (groups of 30) Guided tour in English - 1h30 - 1 guide for 30 persons - Daily tours except Tuesdays. -
Advanced Technologies for Future Space Telescopes and Instruments
Advanced Technologies for Future Space Telescopes and Instruments - A sample of upcoming astronomy missions - Interferometry in space (Darwin) - Very large telescopes in orbit (XEUS) - Future space telescope concepts (TPF) Dr. Ph. Gondoin (ESA) IR and visible astronomy missions (ESA Cosmic Vision – NASA Origin programs) DARWIN TPF GAIA SIM Herschel SIRTF Planck Eddington Kepler JWST Corot 1 GAIA Science Objective: Understanding the structure and evolution of the Galaxy PayloadGAIA payload • 2 astrometric telescopes: • Separated by 106o • SiC mirrors (1.4 m × 0.5 m) • Large focal plane (TDI operating CCDs) • 1 additional telescope equipped with: • Medium-band photometer • Radial-velocity spectrometer 2 Technology requirements for GAIA (applicable to many future space missions) • Large focal plane assemblies: – 250 CCDs per astrometry field, 3 side buttable, small pixel (9 µm), high perf. CCDs ( large CTE, low-noise, wide size, high QE), TDI operation • Ultra-stable telescope structure and optical bench: • Light weight mirror elements: – SiC mirrors (highly aspherized for good off-axis performance) Large SiC mirror for space telescopes (Boostec) ESA Herschell telescope: 1.35 m prototype 3.5 m brazed flight model (12 petals) 3 James Webb Space Telescope (JWST) Mirror Actuators Beryllium Mirrors Mirror System AMSD SBMD Wavefront Sensing and Control, Mirror Phasing Secondary mirror uses six actuators In a hexapod configuration Primary mirror segments attached to backplane using actuators in a three-point kinematic mount NIRSpec: a Multi-object -
Immersion Into Noise
Immersion Into Noise Critical Climate Change Series Editors: Tom Cohen and Claire Colbrook The era of climate change involves the mutation of systems beyond 20th century anthropomorphic models and has stood, until recent- ly, outside representation or address. Understood in a broad and critical sense, climate change concerns material agencies that im- pact on biomass and energy, erased borders and microbial inven- tion, geological and nanographic time, and extinction events. The possibility of extinction has always been a latent figure in textual production and archives; but the current sense of depletion, decay, mutation and exhaustion calls for new modes of address, new styles of publishing and authoring, and new formats and speeds of distri- bution. As the pressures and re-alignments of this re-arrangement occur, so must the critical languages and conceptual templates, po- litical premises and definitions of ‘life.’ There is a particular need to publish in timely fashion experimental monographs that redefine the boundaries of disciplinary fields, rhetorical invasions, the in- terface of conceptual and scientific languages, and geomorphic and geopolitical interventions. Critical Climate Change is oriented, in this general manner, toward the epistemo-political mutations that correspond to the temporalities of terrestrial mutation. Immersion Into Noise Joseph Nechvatal OPEN HUMANITIES PRESS An imprint of MPublishing – University of Michigan Library, Ann Arbor, 2011 First edition published by Open Humanities Press 2011 Freely available online at http://hdl.handle.net/2027/spo.9618970.0001.001 Copyright © 2011 Joseph Nechvatal This is an open access book, licensed under the Creative Commons By Attribution Share Alike license. Under this license, authors allow anyone to download, reuse, reprint, modify, distribute, and/or copy this book so long as the authors and source are cited and resulting derivative works are licensed under the same or similar license. -
Kepler Press
National Aeronautics and Space Administration PRESS KIT/FEBRUARY 2009 Kepler: NASA’s First Mission Capable of Finding Earth-Size Planets www.nasa.gov Media Contacts J.D. Harrington Policy/Program Management 202-358-5241 NASA Headquarters [email protected] Washington 202-262-7048 (cell) Michael Mewhinney Science 650-604-3937 NASA Ames Research Center [email protected] Moffett Field, Calif. 650-207-1323 (cell) Whitney Clavin Spacecraft/Project Management 818-354-4673 Jet Propulsion Laboratory [email protected] Pasadena, Calif. 818-458-9008 (cell) George Diller Launch Operations 321-867-2468 Kennedy Space Center, Fla. [email protected] 321-431-4908 (cell) Roz Brown Spacecraft 303-533-6059. Ball Aerospace & Technologies Corp. [email protected] Boulder, Colo. 720-581-3135 (cell) Mike Rein Delta II Launch Vehicle 321-730-5646 United Launch Alliance [email protected] Cape Canaveral Air Force Station, Fla. 321-693-6250 (cell) Contents Media Services Information .......................................................................................................................... 5 Quick Facts ................................................................................................................................................... 7 NASA’s Search for Habitable Planets ............................................................................................................ 8 Scientific Goals and Objectives ................................................................................................................. -
Corot En Suisse
Marc Fehlmann exhibition review of Corot en Suisse Nineteenth-Century Art Worldwide 10, no. 1 (Spring 2011) Citation: Marc Fehlmann, exhibition review of “Corot en Suisse,” Nineteenth-Century Art Worldwide 10, no. 1 (Spring 2011), http://www.19thc-artworldwide.org/spring11/corot-en- suisse. Published by: Association of Historians of Nineteenth-Century Art. Notes: This PDF is provided for reference purposes only and may not contain all the functionality or features of the original, online publication. Fehlmann: Corot en Suisse Nineteenth-Century Art Worldwide 10, no. 1 (Spring 2011) Corot en Suisse Musée Rath, Geneva September 24, 2010 – January 9, 2011 Catalogue: Corot en Suisse. Edited by Paul Lang, with contributions by Paul Lang, Martin Dieterle, Vincent Pomarède, Valentina Anker, Philippe Clerc, Lukas Gloor, Caroline Guignard, Camille Jacquier, Justine Moeckli, Jean-Marie Marquis, Brigitte Monti, Marie-Therese Bätschmann. Geneva: Somogy Editions d'Art/ Musée d'Art et d'Histoire Genève, 2010. 272 pp; 10 b/w figures and 253 color illustrations. CHF 51: (soft cover) ISBN 978-2-7572-286-9 When considering which major nineteenth century master had travelled to Switzerland and worked there, one might first think of Joseph Mallord William Turner. When wondering which key figure in French nineteenth century art stayed in the Alpine republic, then Gustave Courbet might first come to one's mind. Camille Corot, however, is generally not linked with Switzerland, but rather with Italy, not least thanks to Peter Galassi's excellent publication of 1992 and the 1997 exhibition, In the Light of Italy. Corot and Open-Air Painting, which was held at Washington D.C., New York, and Saint Louis, in 1996 and 1997, as well as the French- Italian cooperation Paysage d'Italie.