Lyman-alpha as an Astrophysical and Cosmological Tool (eBook)
XVII, 403 Seiten
Springer Berlin Heidelberg (Verlag)
978-3-662-59623-4 (ISBN)
The hydrogen Lyman-alpha line is of utmost importance to many fields of astrophysics. This UV line being conveniently redshifted with distance to the visible and even near infrared wavelength ranges, it is observable from the ground, and provides the main observational window on the formation and evolution of high redshift galaxies. Absorbing systems that would otherwise go unnoticed are revealed through the Lyman-alpha forest, Lyman-limit, and damped Lyman-alpha systems, tracing the distribution of baryonic matter on large scales, and its chemical enrichment.
Dr. Pierre North is senior researcher and lecturer at the Laboratory of Astrophysics of the Ecole Polytechnique Fédérale de Lausanne (EPFL). He obtained his PhD degree in astronomy and astrophysics in 1984 at Geneva University. He worked on chemically peculiar stars, especially on the evolution of the angular momentum of magnetic Ap and Bp stars. He studied the rate and properties of binaries among this type of stars, and also determined the orbital and spectral properties of Ba dwarfs, to the discovery of which he contributed. He used astrometric and eclipsing binary systems to determine the distance of stellar systems like the Pleiades and the Small Magellanic Cloud, and to put constraints on stellar models. His research interests focus now on Lyman-alpha emitting nebulae around quasars, and on the chemical history of dwarf spheroidal galaxies and of the Milky Way outer halo through analysis of stellar spectra.
Dr. Hakim Atek is an assistant astronomer at Institut d'astrophysique de Paris (IAP) in France. He received his Master in astronomy and astrophysics from the University Pierre & Marie Curie (Paris VI). He obtained his Ph.D. in astrophysics in 2010 from the University Paris VI and the University of Geneva. He was a postdoctoral researcher at the California Institute of Technology (Caltech) for three years before moving to Switzerland for a second postdoctoral position at the Federal Institute of Technology in Lausanne (EPFL). During that period he spent one year as an associate research scientist at Yale University. He is primarily interested in the reionisation of the Universe and the formation and evolution of galaxies across cosmic time. He has a strong expertise in observational techniques with the Hubble Space Telescope and large ground-based facilities.
Prof. Sebastiano Cantalupo is an Assistant Professor of Cosmic Structure Formation at ETH Zurich. His research combines theoretical, numerical and observational approaches into a single program that is aimed at detecting and characterising with fluorescent Ly-alpha emission the diffuse intergalactic gas at high redshifts. This gas is believed to trace the cosmic web that drives the formation and growth of galaxies in the early Universe. Prof. Cantalupo completed his PhD in 2008 at ETH Zurich and subsequently held postdoctoral fellowship appointments at the Institute of Astronomy at the University of Cambridge and at the Department of Astronomy and Astrophysics at the University of California Santa Cruz. He returned to ETH in 2014 as Research Team Leader working on the exploitation of the MUSE Guaranteed Time of Observations. In 2016, Prof Cantalupo was awarded a Swiss National Science Foundation Professorship with associated research grant to build a new research group at ETH Zurich that combines theoretical and numerical models of Cosmological Structure Formation with the unprecedented data provided by the new MUSE integral field spectrograph.X. Prochaska is Professor of Astronomy at the University of California Santa Cruz, USA. He examines the nature of gas both within and outside galaxies, primarily during the first few billion years of the Universe. He is an expert of high resolution spectroscopy of distant, intrinsically bright sources (quasars, gamma-ray bursts), revealing the foreground gas in absorption, allowing to study the metallicity, molecular fraction, depletion, ionisation state and velocity field of gas in the young universe. His current passions in academia include artificial intelligence, fast radio bursts, and ALMA.
M. Ouchi is Professor of Astronomy at the University of Tokyo, Japan. Using state-of-the-art telescopes such as Subaru, Hubble, and ALMA, he aims to push today's observational frontiers towards the very high redshift Universe. His main research interest is to understand physical processes of the early galaxy formation and the cosmic reionization, particularly exploiting large samples of Lyman alpha emitters.
M. Hayes is Associate Professor of Astrophysics at Stockholm University, Sweden. His research is focused on the origin and evolution of galaxies, i.e. how galaxies are assembled and evolve to become the population of galaxies we see at the present day. He works on questions relating to how stellar populations have evolved with time and how star-formation influences the surrounding medium through a process often dubbed 'feedback'. Consequently he also studies how gas is distributed in and around galaxies and how we can determine its properties.
Erscheint lt. Verlag | 12.11.2019 |
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Reihe/Serie | Saas-Fee Advanced Course | Saas-Fee Advanced Course |
Zusatzinfo | XVII, 403 p. 313 illus., 192 illus. in color. |
Sprache | englisch |
Themenwelt | Naturwissenschaften ► Physik / Astronomie ► Astronomie / Astrophysik |
Schlagworte | Damped Lyman-alpha Systems • epoch of reionisation • Galaxy Evolution • Galaxy Formation • galaxy populations • High-Redshift Galaxies • Lyman-alpha forest • resonance line transfer |
ISBN-10 | 3-662-59623-7 / 3662596237 |
ISBN-13 | 978-3-662-59623-4 / 9783662596234 |
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