Banca: Othon C. Winter / Banca: Ernesto Vieira Neto / Banca: Sylvio Ferraz Mello / Banca: Augusto Daminelli / Banca: Paulo Afonso de oliveira Soviero / Texto sistematizado de parte dos trabalhos de pesquisa realizados após a obtenção do título de doutor. Apresentado ao Departamento de Matemática da UNESP, Campus de Guaratinguetá, como parte dos requisistos para obtenção do título de Livre Docência

Thesis. 1976. Ph.D.--Massachusetts Institute of Technology. Dept. of Mathematics. / Microfiche copy available in Archives and Science. / Bibliography: leaves 203-204. / Ph.D.

In this thesis we make predictions of extreme elements of large-scale structure (LSS) in the universe. We base our study on the concordance cosmological model, the Lambda Cold-Dark-Matter (ΛCDM) model, and in doing so we utilise a suite of very large N-body,dark-matter-only simulations. To understand LSS throughout cosmic history, it is vital to quantify the evolution ofthe numbers of objects in the universe. To this end, we perform a numerical investigation into the abundance of dark matter haloes across an unprecedented combination of redshifts and masses. For the very young universe (z > 6), a fit is presented for the numbers of rare haloes that hosted the energetic objects that drove reionization. At lower redshifts we predict number counts of galaxy groups and clusters, the observation of which forms perhaps our current, best method of interpreting nature on large scales. Our low redshift results are based on simulations with very large volumes, which allows us to probe rare objects in a ΛCDM universe, including massive clusters, voids and extreme-velocity mergers. These objects challenge our understanding of the universe by exhibiting the extremes of the ΛCDM model. With the possible exception of the Bullet Cluster, our simulation results are in line with current observations. We study the late-time Integrated Sachs-Wolfe (ISW) effect using a (6 h−1Gpc)³ volume simulation which contains enough particles (6000³) to resolve luminous red galaxies. From these data we calculate the expected ISW-LSS cross-correlation signal in a ΛCDM universe. The signal is found to be strongest for LSS surveys that can probe redshift ranges of z ~ 0.2 to 0.8. The ISW effect promises to be an important measure of the evolution of dark energy, the overall understanding of which is perhaps the most important current goal in cosmology.

Thèse : Mécanique : Faculté des sciences de Paris : 1852. Thèse : Astronomie : Faculté des sciences de Paris : 1852. / Titre provenant de l'écran-titre.

Thesis (M.S.)--Rutgers University, 2009. / "Graduate Program in Mathematical Sciences." Includes bibliographical references (p. 40).

This report describes StarMapper, a mobile appliation designed for the Android platform that interactively maps the celestial sky and can provide information from Wikipedia about celestial objects to the user. The stars, constellations, planets, sun, and moon are all rendered in real-time and the user can navigate the celestial map simply by pointing the device around the sky to find and identify the different celestial objects. However, if the user prefers, a manual touch-based map navigation feature is also available in StarMapper. While other Android applications currently exist for mapping the sky, such as Google's Sky Map, StarMapper aims to enhance the experience by also providing additional information about celestial objects to the user by means of a simple click on the screen. For obtaining more information about a particular constellation or other celestial object, the user only needs to click on the object's name in the map, and the device's web browser opens to the Wikipedia page of the clicked object. Through this simple mechanism, the user can learn much more about astronomy than just locations of celestial objects. / text

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Thesis (Ph. D.)--Montana State University--Bozeman, 2004. / Typescript. Chairperson, Graduate Committee: Neil J. Cornish. Includes bibliographical references (leaves 136-142).

Thesis (M.Sc.)--York University, 2004. Graduate Programme in Physics and Astronomy. / Typescript. Includes bibliographical references (leaves 126-129). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: LINK NOT YET AVAILABLE.

Thesis (M.S.)--Baylor University, 2006. / Includes bibliographical references (p. 74-76).