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Contribution A Letude Des Effets Denvironnement Sur Les Proprietes Des Galaxies
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Book Synopsis Contribution a l'étude des effets d'environnement sur les propriétés des galaxies by : Véronique Cayatte
Download or read book Contribution a l'étude des effets d'environnement sur les propriétés des galaxies written by Véronique Cayatte and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: DANS UNE PREMIERE PARTIE EST TRAITEE DE L'INFLUENCE DE L'ENVIRONNEMENT SUR LA REPARTITION DE L'HYDROGENE NEUTRE DE 25 GALAXIES SPIRALES DE L'AMAS DE LA VIERGE, ET SUR LES COURBES DE ROTATION DE 21 GALAXIES SPIRALES DE CINQ AMAS PROCHES. TROIS DES QUATRE GROUPES DE GALAXIES DE L'AMAS DE LA VIERGE MONTRENT UN BALAYAGE DE L'HYDROGENE DANS LE DISQUE DES SPIRALES; LE PRINCIPAL RESPONSABLE ETANT LE GAZ CHAUD INTRA-AMAS. PAR CONTRE, L'ENVIRONNEMENT INFLUENCE PEU LA DYNAMIQUE DES GALAXIES DANS LES AMAS. LA DEUXIEME PARTIE PRESENTE DEUX PHENOMENES RELIES A L'ACTIVITE CENTRALE D'UN NOYAU DE GALAXIE, ET LA TROISIEME PARTIE DECRIT DES PROGRAMMES OBSERVATIONNELS EN COURS SUR LE PROBLEME DE LA DISTRIBUTION DES GALAXIES DANS L'UNIVERS
Book Synopsis Contribution à l'étude des propriétés dynamiques et spectrales des amas de galaxies en X by : Frédéric Magnard
Download or read book Contribution à l'étude des propriétés dynamiques et spectrales des amas de galaxies en X written by Frédéric Magnard and published by . This book was released on 2002 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book PASCAL. written by and published by . This book was released on 1994 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Environmental Effects on Galaxy Evolution in Nearby Clusters by : Luca Cortese
Download or read book Environmental Effects on Galaxy Evolution in Nearby Clusters written by Luca Cortese and published by . This book was released on 2005 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce travail est dédié à l'étude des effets d'environnement sur l'évolution des galaxies, en utilisant un échantillon multi-longueur d'onde. En combinant pour la première fois des observations UV de GALEX à des données en optique, et en infrarouge j'ai déterminé l'histoire évolutive des galaxies. Touts les résultats obtenus montrent que : - les elliptiques géantes sont vieilles, à l'inverse des elliptiques naines qui contiennent toujours des populations stellaires jeunes. - L'importance relative des différents mécanismes d'environnement varie avec l'âge de l'univers. Les interactions de marée ont dominé dans l'univers passé mais la pression dynamique domine dans les amas d'aujourd'hui. - La classe des galaxies SO, n'est pas le résultat d'un seul mécanisme de transformation. - Il y a une forte corrélation entre l'âge moyen des populations stellaires et la masse des galaxies. Comprendre l'origine de cet effet représente aujourd'hui un des défis pour les modèles d'évolution des galaxies.
Book Synopsis Contribution à l'étude des galaxies singulières by : Marie-Hélène Demoulin
Download or read book Contribution à l'étude des galaxies singulières written by Marie-Hélène Demoulin and published by . This book was released on 1969 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Contribution à l'étude de la distribution, évolution et formation des galaxies by : David Valls-Gabaud
Download or read book Contribution à l'étude de la distribution, évolution et formation des galaxies written by David Valls-Gabaud and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Contribution à l'étude de galaxies de seyfert dans l'ultraviolet lointain by : Catherine Boisson
Download or read book Contribution à l'étude de galaxies de seyfert dans l'ultraviolet lointain written by Catherine Boisson and published by . This book was released on 1982 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'ETUDE CONCERNE LES GALAXIES DE SEYFERT DE TYPE 1 DONT LA CARACTERISTIQUE EST DE PRESENTER SIMULTANEMENT DES PROFILS DE RAIES AVEC UNE COMPOSANTE LARGE ET UNE ETROITE. ON PRESENTE L'ANALYSE DES SPECTRES UV DE LA GALAXIE NGC 5548 INTENSEMENT ETUDIEE DANS LES AUTRES DOMAINES DE LONGUEURS D'ONDE. ON ETEND ENSUITE L'ETUDE A 5 AUTRES GALAXIES DE SEYFERT CONNUES COMME VARIABLES (ESO 113-IG 45, AKR 120, NGC 3783, NGC 4593, NGC 7213). LES CONCLUSIONS SONT RESUMEES DANS LE DERNIER CHAPITRE
Book Synopsis Contribution à l'étude de la structure spirale des galaxies by : Evangelie Athanassoula
Download or read book Contribution à l'étude de la structure spirale des galaxies written by Evangelie Athanassoula and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CONTRIBUTIONS TO THE STUDY OF THE DISTRIBUTION, EVOLUTION AND FORMATION OF GALAXIES by : David Valls-Gabaud
Download or read book CONTRIBUTIONS TO THE STUDY OF THE DISTRIBUTION, EVOLUTION AND FORMATION OF GALAXIES written by David Valls-Gabaud and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE THESE ETUDIE PLUSIEURS PROBLEMES LIES A LA DISTRIBUTION DES GALAXIES AUX GRANDES ECHELLES, ET A LEUR FORMATION ET EVOLUTION. UNE NOUVELLE METHODE POUR LA MESURE DES EFFETS DE SEGREGATION EN LUMINOSITE ET EN MORPHOLOGIE DANS LES GRANDES STRUCTURES EST PROPOSEE. ON COMPARE LES MESURES DE SEGREGATION EFFECTUEES DANS DES CATALOGUES DE GALAXIES AUX PREVISIONS REALISEES DANS LE CADRE DE THEORIES DE FORMATION DE GALAXIES AVEC MATIERE NOIRE FROIDE. DE NOUVELLES METHODES STATISTIQUES SONT PROPOSEES POUR COMPARER LA DISTRIBUTION OBSERVEE DES GALAXIES A CELLE OBTENUE DANS DES SIMULATIONS NUMERIQUES. ON ANALYSE LES PROPRIETES SPECTRALES DES GALAXIES LOINTAINES, ET EN PARTICULIER LEUR EMISSION LYMAN-ALPHA, POUR CONTRAINDRE LA FORMATION D'ETOILES MASSIVES ET LA TOPOLOGIE DE LEUR MILIEU INTERSTELLAIRE. ENFIN, ON PROPOSE UNE NOUVELLE THEORIE DE FORMATION DE GALAXIES DANS UN MILIEU INTERGALACTIQUE CHAUD, ET ON PREDIT L'EVOLUTION DE LA FONCTION DE LUMINOSITE DES GALAXIES
Book Synopsis CONTRIBUTION A L'ETUDE DE L'AMAS DE GALAXIES ABELL 194 by : MOHAMED.. KHOUCHANE
Download or read book CONTRIBUTION A L'ETUDE DE L'AMAS DE GALAXIES ABELL 194 written by MOHAMED.. KHOUCHANE and published by . This book was released on 1986 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: ETUDE PHOTOMETRIQUE D'UN AMAS DE GALAXIES PROCHES (Z=0.0178). MISE EN EVIDENCE DE L'EXISTENCE D'UNE SEGREGATION DE LUMINOSITE ET D'UNE SEGREGATION MORPHOLOGIQUE DANS L'AMAS ABELL 194
Book Synopsis Contribution à l'étude des bulles dans les galaxies proches by : Margarita Rosado-Solis
Download or read book Contribution à l'étude des bulles dans les galaxies proches written by Margarita Rosado-Solis and published by . This book was released on 1984 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Propriétés des galaxies par type morphologique dans différents environnements by : Stefano Andreon
Download or read book Propriétés des galaxies par type morphologique dans différents environnements written by Stefano Andreon and published by . This book was released on 1996 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE THESE EST UNE PREMIERE ETAPE DECISIVE VERS LA COMPREHENSION DES PHENOMENES RESPONSABLES DU TYPE MORPHOLOGIQUE DES GALAXIES. NOUS AVONS MIS AU POINT DES OUTILS SOLIDES POUR L'ETUDE DES PROPRIETES DES TYPES MORPHOLOGIQUES (CONSTRUCTION D'ECHANTILLONS COMPLETS, CLASSIFICATION MORPHOLOGIQUE REPRODUCTIBLE AVEC UNE TRES GRAND FIABILITE, ANALYSE STATISTIQUE) ET, AU PRIX DE NOMBREUSES CAMPAGNES D'OBSERVATION, CONSTRUIT UNE BASE DE DONNEES NON BIAISEE DE PLUS DE 700 GALAXIES. LE RESULTAT ESSENTIEL DE CE TRAVAIL EST QUE L'ENVIRONNEMENT ET L'EPOQUE NE MODIFIENT PAS LE TYPE MORPHOLOGIQUE DES GALAXIES, NI LES PROPRIETES PHOTOMETRIQUES DES GALAXIES DE TYPE PRECOCE, NI LA DENSITE DE GALAXIES SPIRALES. A L'OPPOSE, L'ENVIRONNEMENT CONTROLE LA DENSITE DE GALAXIES DE TYPE PRECOCE ET LES PROPRIETES PHOTOMETRIQUES DES SPIRALES. DANS CE SCENARIO MIXTE, L'ENVIRONNEMENT CONTROLE LES PROPRIETES PHOTOMETRIQUES ET NON PAS LA DENSITE DE CERTAINS TYPES, ALORS QUE L'INVERSE EST VRAI POUR D'AUTRES TYPES. CELA FAIT QU'IL PEUT Y AVOIR UNE SEGREGATION MORPHOLOGIQUE DANS LES AMAS SANS QUE LES GALAXIES AIENT A CHANGER DE TYPE. DANS LES TROIS AMAS ETUDIES EN DETAIL (COMA, PERSEE ET C10939+4713) LA DISTRIBUTION SPATIALE DES GALAXIES PAR TYPE MORPHOLOGIQUE MONTRE UNE DIRECTION PRIVILEGIEE QUI EST LA SOURCE PRIMAIRE DE LA SEGREGATION MORPHOLOGIQUE RADIALE OU EN DENSITE ETABLIE PRECEDEMMENT. NOUS AVONS EGALEMENT TROUVE QUE LES DEUX SOUS-CLASSES D'ELLIPTIQUES (A BOITE ET A DISQUE) ONT LES MEME PROPRIETES INTRINSEQUES
Book Synopsis The Tree of Life by : Guillaume Lecointre
Download or read book The Tree of Life written by Guillaume Lecointre and published by Harvard University Press. This book was released on 2006 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: Did you know that you are more closely related to a mushroom than to a daisy? That dinosaurs are still among us? That the terms "fish" and "invertebrates" do not indicate scientific groupings? All this is the result of major changes in classification. This book diagrams the tree of life according to the most recent methods of this system.
Book Synopsis Free Will, Causality, and Neuroscience by :
Download or read book Free Will, Causality, and Neuroscience written by and published by BRILL. This book was released on 2019-10-21 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neuroscientists often consider free will to be an illusion. Contrary to this hypothesis, the contributions to this volume show that recent developments in neuroscience can also support the existence of free will. Firstly, the possibility of intentional consciousness is studied. Secondly, Libet’s experiments are discussed from this new perspective. Thirdly, the relationship between free will, causality and language is analyzed. This approach suggests that language grants the human brain a possibility to articulate a meaningful personal life. Therefore, human beings can escape strict biological determinism. Contributing author Sofia Bonicalzi has received funding from the European Union’s Framework Programme for Research and Innovation Horizon 2020 (2014-2020) under the Marie Skłodowska-Curie Grant Agreement No. 754388 (LMUResearchFellows) and from LMUexcellent, funded by the Federal Ministry of Education and Research (BMBF) and the Free State of Bavaria under the Excellence Strategy of the German Federal Government and the Länder.
Book Synopsis Innovate Bristol by : Sven Boermeester
Download or read book Innovate Bristol written by Sven Boermeester and published by . This book was released on 2019-12 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Innovate Bristol highlights and celebrates those companies and individuals that are actively working at building a better tomorrow for all. Innovation Ecosystems thrive through the involvement and support of companies and individuals from all industries, which is why the Innovate series not only focuses on the innovators but also those people whom the Innovation Ecosystem, would not be able to thrive without.
Download or read book CAA2015 written by Stefano Campana and published by Archaeopress Archaeology. This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume brings together all the successful peer-reviewed papers submitted for the proceedings of the 43rd conference on Computer Applications and Quantitative Methods in Archaeology that took place in Siena (Italy) from March 31st to April 2nd 2015. Altogether, within the four days of the conference 280 papers were presented in 48 sections divided into ten macro topics, 113 posters, 7 roundtables and 12 workshops. That number, in itself, has prompted a thought or two. Above all it says that CAA is very much alive and kicking, that it is in robust good health, and that it remains a wholly relevant force in the scientific community, fully engaged with the questions of the day, and a continuing focal point for the profession. All of that speaks well for the motto of CAA 2015: KEEP THE REVOLUTION GOING. Although the significance of the motto is obvious, it is worth some thoughts. Few would deny that in the past 30 years or so, digital technologies have profoundly revolutionised archaeology - in the office and laboratory, in the field and in the classroom. The progressive introduction of digital techniques in the archaeological process has of course led to a general increase in efficiency. But perhaps more importantly it has provided a spur to the discussion of methodology and through that has strongly influenced not only the way we go about things but also the outcomes that we have been able to achieve. The pioneering phase in the application of digital techniques in archaeological research has clearly been fruitful and today computer applications such as GIS, databases, remote sensing and spatial analysis as well as virtual and cyber archaeology are deeply embedded within our universities. This is all good, of course, but we must not assume that the task has been completed. An intrinsic revolutionary instinct towards technological development has been awakened. But it will only survive by virtue of the results that it brings about. Or using the words of our Chairman Prof Gary Lock: 'Computers not only change the way we do things, but more importantly they change the way we think about what we do and why we do it'. The general thrust of this statement can be summed up and reinforced by recalling a quote from the philosopher Don Ihde, who has argued we should never forget that all technologies should be regarded as 'cultural instruments', which as well as strategies and methodologies implemented in our researches are also 'non-neutral'. So KEEP THE REVOLUTION GOING! is a motto that lays stress on the need to maintain innovation in archaeology through technological advances. But innovation must have at its root the fostering of critical thought and the framing of new archaeological questions. So there is much work still to be done, and fresh challenges to be faced in the months, years and decades ahead. -from the introduction by Stefano Campana and Roberto Scopigno
Book Synopsis Quantum Mechanics, Volume 3 by : Claude Cohen-Tannoudji
Download or read book Quantum Mechanics, Volume 3 written by Claude Cohen-Tannoudji and published by John Wiley & Sons. This book was released on 2019-12-16 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new, third volume of Cohen-Tannoudji's groundbreaking textbook covers advanced topics of quantum mechanics such as uncorrelated and correlated identical particles, the quantum theory of the electromagnetic field, absorption, emission and scattering of photons by atoms, and quantum entanglement. Written in a didactically unrivalled manner, the textbook explains the fundamental concepts in seven chapters which are elaborated in accompanying complements that provide more detailed discussions, examples and applications. * Completing the success story: the third and final volume of the quantum mechanics textbook written by 1997 Nobel laureate Claude Cohen-Tannoudji and his colleagues Bernard Diu and Franck Laloë * As easily comprehensible as possible: all steps of the physical background and its mathematical representation are spelled out explicitly * Comprehensive: in addition to the fundamentals themselves, the books comes with a wealth of elaborately explained examples and applications Claude Cohen-Tannoudji was a researcher at the Kastler-Brossel laboratory of the Ecole Normale Supérieure in Paris where he also studied and received his PhD in 1962. In 1973 he became Professor of atomic and molecular physics at the Collège des France. His main research interests were optical pumping, quantum optics and atom-photon interactions. In 1997, Claude Cohen-Tannoudji, together with Steven Chu and William D. Phillips, was awarded the Nobel Prize in Physics for his research on laser cooling and trapping of neutral atoms. Bernard Diu was Professor at the Denis Diderot University (Paris VII). He was engaged in research at the Laboratory of Theoretical Physics and High Energy where his focus was on strong interactions physics and statistical mechanics. Franck Laloë was a researcher at the Kastler-Brossel laboratory of the Ecole Normale Supérieure in Paris. His first assignment was with the University of Paris VI before he was appointed to the CNRS, the French National Research Center. His research was focused on optical pumping, statistical mechanics of quantum gases, musical acoustics and the foundations of quantum mechanics.
