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Author : Andrew Ives Sheinis
Publisher : Unknown
Page : 362 pages
File Size : 54,6 Mb
Release : 2002
Category : Astronomical spectroscopy
ISBN : UCAL:X67530
Author : Isabel Márquez,Josefa Masegosa,Ascensión del Olmo,Lucas Lara,Emilio García,Josefina Molina
Publisher : Springer Science & Business Media
Page : 388 pages
File Size : 54,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781461506959
Advanced technologies in astronomy at various wavelengths have provided us with high resolution and high quality data on the QSO population. This meeting was aimed at understanding the morphology and nature of the host galaxies and environments of QSOs. The invited lectures as well as the contributed and poster papers highlighted the main issues of current research: the stellar and gaseous content of the underlying galaxy; the characterization of the population of companions and the nature of their interaction with the host galaxy; the connection between radio-loud QSO and radio-galaxies, and QSOs and ULIRGs; the evolution with redshift of both the host galaxy and its environment, and the main implications in theories of galaxy formation and evolution. This volume provides a valuable overview and timely update of the exciting and rapidly developing field of QSO hosts and their environments - essential reading for graduate students and researchers.
Author : David L. Clements,Ismael Perez-Fournon
Publisher : Springer Science & Business Media
Page : 348 pages
File Size : 40,5 Mb
Release : 2013-11-11
Category : Science
ISBN : 9783540696483
Author : Anonim
Publisher : Unknown
Page : 674 pages
File Size : 43,9 Mb
Release : 2003
Category : Dissertations, Academic
ISBN : UOM:39015057953260
Author : GARY ALLEN BOWER
Publisher : Unknown
Page : 344 pages
File Size : 44,8 Mb
Release : 1992
Category : Galaxies
ISBN : UOM:39015024923545
for the other three galaxies.
Author : J. Chris Blades,David A. Turnshek,Colin A. Norman,Space Telescope Science Institute (U.S.)
Publisher : Cambridge University Press
Page : 362 pages
File Size : 40,6 Mb
Release : 1988-08-18
Category : Science
ISBN : 0521345618
This second title in the series published for the Space Telescope Science Institute researches the current models of quasar absorption and the systems of absorption lines in the spectra of quasars. Experts in this field discuss the nature of the absorbing process in the vicinity of quasars, the "Lyman-alpha forest", metal-line systems, and quasars as probes of high redshift galaxies. The Hubble Space Telescope will be a valuable tool for learning more about the physics and astronomy of quasars.
Author : Aage Sandqvist,Thomas P. Ray
Publisher : Springer
Page : 264 pages
File Size : 45,8 Mb
Release : 1993-01-22
Category : Science
ISBN : UOM:39015029552067
This outstanding collection of surveys addresses graduate and predoctoral students. It reports on theoretical research and observational data on active galactic nuclei: The enigma of the nuclei of galaxies with their central "monster" driving the vast range of activity observed in quasars, radio galaxies, Seyferts, starburst galaxies and even our own Galaxy are explored in this volume. Topics covered include: the impact of recent measurements in the infrared and radio region on our knowledge of thenucleus of our Galaxy; the spectra and classification of active galactic nuclei, the properties of their host galaxies, their cosmological distribution and evolution, the role of stars and thehydrodynamics of the interstellar medium in the nuclei; the description of the inner parsec of a standard active galactic nucleus based on direct interpretation of the observations; the infrared activity of galaxies; the physics of radio galaxies and their jets, emphasizing the physics ofgas flow and high-energy particle interactions as well as shock acceleration. These are all discussed in considerable depth and presented inself-contained chapters with exhaustive reference lists of the scientific literature.
Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 53,9 Mb
Release : 2024-07-03
Category : Electronic
ISBN : 9789814470032
Author : José G. Funes,Enrico Maria Corsini
Publisher : Unknown
Page : 548 pages
File Size : 55,9 Mb
Release : 2008
Category : Science
ISBN : UOM:39015079260736
"These are the proceedings of the international conference "Formation and Evolution of Galaxy Disks" organized by the Specola Vaticana (the Vatican Observatory). The meeting hosted 198 participants from 26 countries. The program consisted of 61 talks and about 130 poster papers. In 2000 the Vatican Observatory organized a conference on Galaxy Disks and Disk Galaxies, the proceedings of which were published in ASP Conference Series Vol. 230. Since that time, a great amount of work has been done in this very active field. October 2007 was deemed an appropriate time to hold another similar conference where outstanding senior and junior astronomers in this field could air new results. The conference was focused on the formation and evolution of galaxy disks and covered the following topics: (1) properties of nearby galaxy disks; (2) interstellar medium, star formation, and chemical evolution; (3) disk edges, outskirts, and environment; (4) accretion onto disks, interactions, and mergers; (5) secular evolution of disks and bar/spiral driven evolution of galaxies; (6) evolution of disk structural properties; and (7) disk formation in a hierarchical universe. This books is of interest for researchers in extragalactic astronomy. It presents an overview of the relevant results and the progress made in the field in the last seven years."--Publisher's website
Author : Hagen Kleinert,Robert T. Jantzen,Remo Ruffini
Publisher : Unknown
Page : 1048 pages
File Size : 42,8 Mb
Release : 2008
Category : Astrophysics
ISBN : CHI:80396123
Author : Richard A. Matzner
Publisher : CRC Press
Page : 536 pages
File Size : 45,8 Mb
Release : 2018-10-08
Category : Science
ISBN : 9781420050233
The Dictionary of Geophysics, Astrophysics, and Astronomy provides a lexicon of terminology covering fields such as astronomy, astrophysics, cosmology, relativity, geophysics, meteorology, Newtonian physics, and oceanography. Authors and editors often assume - incorrectly - that readers are familiar with all the terms in professional literature. With over 4,000 definitions and 50 contributing authors, this unique comprehensive dictionary helps scientists to use terminology correctly and to understand papers, articles, and books in which physics-related terms appear.
Author : Péter Mészáros
Publisher : Cambridge University Press
Page : 223 pages
File Size : 45,8 Mb
Release : 2010-09-16
Category : Science
ISBN : 9781139490726
In the last two decades, cosmology, particle physics, high energy astrophysics and gravitational physics have become increasingly interwoven. The intense activity taking place at the intersection of these disciplines is constantly progressing, with the advent of major cosmic ray, neutrino, gamma ray and gravitational wave observatories for studying cosmic sources, along with the construction of particle physics experiments using beams and signals of cosmic origin. This book provides an up-to-date overview of the recent advances and potential future developments in this area, discussing both the main theoretical ideas and experimental results. It conveys the challenges but also the excitement associated with this field. Written in a concise yet accessible style, explaining technical details with examples drawn from everyday life, it will be suitable for undergraduate and graduate students, as well as other readers interested in the subject. Colour versions of a selection of the figures are available at www.cambridge.org/9780521517003.
Author : Mark Dijkstra,J. Xavier Prochaska,Masami Ouchi,Matthew Hayes
Publisher : Springer
Page : 403 pages
File Size : 53,8 Mb
Release : 2020-11-26
Category : Science
ISBN : 3662596253
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. We are living an exciting epoch with the advent of new instruments and facilities, on board of satellites and on the ground. Wide field and very sensitive integral field spectrographs are becoming available on the ground, such as MUSE at the ESO VLT. The giant E-ELT and TMT telescopes will foster a quantum leap in sensitivity and both spatial and spectroscopic resolution, to the point of being able, perhaps, to measure directly the acceleration of the Hubble flow. In space, the JWST will open new possibilities to study the Lyman-alpha emission of primordial galaxies in the near infrared. As long as the Hubble Space Telescope will remain available, the UV-restframe properties of nearby galaxies will be accessible to our knowledge. Therefore, this Saas-Fee course appears very timely and should meet the interest of many young researchers.
Author : Edo Berger
Publisher : Universal-Publishers
Page : 206 pages
File Size : 48,7 Mb
Release : 2004
Category : Science
ISBN : 9781581122336
The diversity of stellar death is revealed in the energy, velocity and geometry of the explosion debris ("ejecta''). Using multi-wavelength observations of gamma-ray burst (GRB) afterglows I show that GRBs, arising from the death of massive stars, are marked by relativistic, collimated ejecta ("jets'') with a wide range of opening angles. These results suggest that various cosmic explosions are powered by a common energy source, an "engine'' (possibly an accreting stellar-mass black hole), with their diverse appearances determined solely by the variable high velocity output. On the other hand, using radio observations I show that local type Ibc core-collapse supernovae generally lack relativistic ejecta and are therefore not powered by engines. Instead, the highest velocity debris in these sources, typically with a velocity lower than 100,000 km/sec, are produced in the (effectively) spherical ejection of the stellar envelope. The relative rates of engine- and collapse-powered explosions suggest that the former account for only a small fraction of the stellar death rate. Using the first radio and submillimeter observations of GRB hosts, I show that some are extreme starburst galaxies with the bursts directly associated with the regions of most intense star formation. I suggest, by comparison to other well-studied samples, that GRBs preferentially occur in sub-luminous, low mass galaxies, undergoing the early stages of a starburst process. If confirmed with future observations, this trend will place GRBs in the forefront of star formation and galaxy evolution studies.
Author : Andreas Kaufer,Florian Kerber
Publisher : Springer Science & Business Media
Page : 594 pages
File Size : 50,9 Mb
Release : 2008-05-05
Category : Science
ISBN : 9783540769637
The 2007 ESO Instrument Calibration workshop brought together more than 120 participants with the objective to a) foster the sharing of information, experience and techniques between observers, instrument developers and instrument operation teams, b) review the actual precision and limitations of the applied instrument calibration plans, and c) collect the current and future requirements by the ESO users. These present proceedings include the majority of the workshop’s contributions and document the status quo of instrument calibration at ESO in large detail. Topics covered are: Optical Spectro-Imagers, Optical Multi-Object Spectrographs, NIR and MIR Spectro-Imagers, High-Resolution Spectrographs, Integral Field Spectrographs, Adaptive Optics Instruments, Polarimetric Instruments, Wide Field Imagers, Interferometric Instruments as well as other crucial aspects such as data flow, quality control, data reduction software and atmospheric effects. It was stated in the workshop that “calibration is a life-long learning process”'. In this sense, this book will be a reference point for all future efforts to improve instrument calibration procedures in astronomy.