Download or read book Le printemps cosmique des grandes structures written by Clément Martinache and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les galaxies sont des phares dans l'Univers qui nous permettent de comprendre l'évolution de la répartition dans l'Univers de la matière sous toutes ses formes. L'étude de ces galaxies à différentes époques permet de comprendre comment elles s'organisent à grande échelle (supérieures à la distance inter-galaxies) mais aussi comment elles se forment, et forment leurs étoiles.À notre époque cosmologique, les galaxies dans les environnements les plus denses (amas, groupes) présentent des propriétés bien différentes des galaxies dans les environnements moins denses. Cette bimodalité entre 1) des galaxies elliptiques, massives, vieilles et formant peu d'étoiles dans les environnements denses d'une part, et 2) des galaxies spirales, plus jeunes et en phase de formation stellaire intenses dans les environnements moins denses d'autre part, traduit des mécanismes d'évolution et de formation différents.L'étude des galaxies dans les amas révèle des indices "fossiles" sur une époque de dernière phase significative de formation stellaire à un redshift z~2, et pointe vers un épisode de formation stellaire synchrone dans les galaxies de l'amas, et dans de colossales proportions (~500 Masses solaires par an, à mettre en regard avec les taux de formation stellaire moyens observés dans l'Univers local de l'ordre de ~1-10 Masses solaires par an). Mais cette phase manque toujours d'une conclusion observationnelle directe, même si de récentes observations vont dans ce sens.Une voie possible pour la recherche des ces objets est de chercher à détecter leur émission dans l'infrarouge lointain, qui trace directement la formation stellaire. C'est ce qui a été réalisé à l'aide du satellite Planck. Des données Planck/HFI, une équipe en collaboration avec la notre a extrait 2151 candidats amas en phase de formation stellaire intense. Un suivi sur 228 candidats a été réalisé avec le télescope spatial Herschel/SPIRE, et a révélé des surdensités de sources rouges, compatible avec une distribution en redshift autour de z~2, et des taux de formation stellaire de l'ordre de 700 masses solaires par an.Pour mieux contraindre le redshift de ces candidats, et étudier leur contenu en étoiles, un autre suivi sur 80 candidats a été réalisé à l'aide de l'instrument IRAC sur le télescope spatial Spitzer. Mon travail porte principalement sur le traitement et l'analyse de ces données.Les longueurs d'onde de l'instrument IRAC (3.6 et 4.5 microns) sont en effet parfaitement adaptées pour détecter un pic caractéristique d'émission des populations stellaires, permettant une estimation du redshift et de la masse stellaire.Mon travail a révélé des surdensités de sources IRAC rouges (z>1.3) aux positions des sources SPIRE rouges (z~2, SFR~700Msol.an), compatibles avec des amas ou proto-amas en formation stellaire intense. Des estimations de redshifts photométriques et de masse stellaire montrent que ces objets sont compatibles avec les progéniteurs des amas locaux.Ces candidats nécessitent cependant une confirmation, notamment à l'aide de l'obtention de redshifts spectroscopiques. Ce travail a déjà commencé, et deux candidat ont déjà été confirmés à des redshifts de 2.15 et 2.36 à l'aide du 30m/IRAM. Des données obtenues avec les interféromètres ALMA et NOEMA ont révélé que l'émission SPIRE était dans certains cas originaires de plusieurs galaxies.Ces premiers résultats sont encourageants, mais une étude à d'autres longueurs d'onde (proche infrarouge) est aussi nécessaire pour mieux contraindre le contenu en masse de nos objets, ainsi que leur histoire de formation stellaire. Les données sont en parties déjà disponibles, et leur analyse a déjà commencé.
Download or read book Occultism Witchcraft and Cultural Fashions written by Mircea Eliade and published by University of Chicago Press. This book was released on 1978-03-15 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: Six essays on a variety of interrelated subjects.
Download or read book Peuples des Grands Nords written by Anne-Victoire Charrin and published by Presses de l'Inalco. This book was released on 1995 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dada written by Leah Dickerman and published by National Gallery of Art, Washington/D.A.P.. This book was released on 2005 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by Leah Dickerman. Essays by Brigid Doherty, Sabine T. Kriebel, Dorothea Dietrich, Michael R. Taylor, Janine Mileaf and Matthew S. Witkovsky. Foreword by Earl A. Powell III.
Download or read book The Necessity of Artifice written by Joseph Rykwert and published by New York : Rizzoli. This book was released on 1982 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radical Pedagogies written by Beatriz Colomina and published by MIT Press. This book was released on 2022-05-31 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments in architectural education in the post–World War II era that challenged and transformed architectural discourse and practice. In the decades after World War II, new forms of learning transformed architectural education. These radical experiments sought to upend disciplinary foundations and conventional assumptions about the nature of architecture as much as they challenged modernist and colonial norms, decentered building, imagined new roles for the architect, and envisioned participatory forms of practice. Although many of the experimental programs were subsequently abandoned, terminated, or assimilated, they nevertheless helped shape and in some sense define architectural discourse and practice. This book explores and documents these radical pedagogies and efforts to defy architecture’s status quo. The experiments include the adaptation of Bauhaus pedagogy as a means of “unlearning” under the conditions of decolonization in Africa; a movement to design for “every body,” including the disabled, by architecture students and faculty at the University of California, Berkeley; the founding of a support network for women interested in the built environment, regardless of their academic backgrounds; and a design studio in the USSR that offered an alternative to the widespread functionalist approach in Soviet design. Viewed through their dissolution and afterlife as well as through their founding stories, these projects from the last century raise provocative questions about architecture’s role in the new century.
Download or read book The Aesthetics of Movement written by Camilla Damkjær and published by . This book was released on 2005 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Philosopher s Index written by and published by . This book was released on 2008 with total page 1376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1969- include a section of abstracts.
Download or read book Counterpractice written by Rakhee Balaram and published by Manchester University Press. This book was released on 2022-03-08 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Counterpractice highlights a generation of women who used art to define a culture of experimental thought and practice during the period of the French women’s movement or Mouvement de Libération des Femmes (1970–81). It considers women’s art in relation to some of the most exciting thinkers to have emerged from the French literature and philosophy of the 1970s – Hélène Cixous, Luce Irigaray and Julia Kristeva – forcing a timely reconsideration of the full spectrum of revolutionary practices by women in the years following the events of May ’68. Lavishly illustrated with over 200 images, the book also features an illuminating foreword by art historian Griselda Pollock.
Download or read book Language Quarterly written by and published by . This book was released on 1982 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Poetry Bible and Theology from Late Antiquity to the Middle Ages written by Michele Cutino and published by Walter de Gruyter GmbH & Co KG. This book was released on 2020-07-06 with total page 769 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume examines for the first time the most important methodological issues concerning Christian poetry – i.e. biblical and theological poetry in classical meters – from a diachronic perspective. Thus, it is possible to evaluate the doctrinal significance of these compositions and the role that they play in the development of Christian theological ideas and biblical exegesis.
Download or read book Actes written by and published by . This book was released on 1986 with total page 1606 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book VIe Congr s international des sciences anthropologiques et ethnologiques Paris 30 juillet 6 ao t 1960 Ethnologie 2 parts written by and published by . This book was released on 1962 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book UNESCO General History of Africa Vol I Abridged Edition written by Jacqueline Ki-Zerbo and published by Univ of California Press. This book was released on 1990 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This volume covers the period from the end of the Neolithic era to the beginning of the seventh century of our era. This lengthy period includes the civilization of Ancient Egypt, the history of Nubia, Ethiopia, North Africa and the Sahara, as well as of the other regions of the continent and its islands."--Publisher's description
Download or read book Dictionnaire Biographique Des Auteurs de Tous Les Temps Et de Tous Les Pays written by Robert Laffont and published by . This book was released on 1957 with total page 874 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The USF Language Quarterly written by and published by . This book was released on 1982 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
