Download or read book Tracing the Evolution of Submillimeter Selected Galaxies written by Susannah Alaghband-Zadeh and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tracing the Evolution of Local Universe Galaxies by Kinematical Studies of HI written by and published by . This book was released on 2014 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tracing Cosmic Evolution with Galaxy Clusters written by Stefano Borgani and published by . This book was released on 2002 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation International astronomers provide an overview of multiwavelength studies of galaxy clusters including optical, X-ray to UV, near- and far-IR, sub-mm, and radio bands. The contributions emphasize two complementary aspects of clusters of galaxies: large-scale views that help trace the structure of the Universe, and enormous astrophysical laboratories that reveal the history of cosmic baryons and the processes of galaxy formation. Borgani and Mezzetti (both astronomy, U. of Trieste, Italy) edit topics including cluster formations of radio loud quasars, mass-to-light ratio of galaxy systems, and Butcher-Oemler effect in high redshift X-ray selected clusters. The volume has no subject index. Annotation (c)2003 Book News, Inc., Portland, OR (booknews.com)
Download or read book Galaxy Formation and Evolution written by Hyron Spinrad and published by Springer Science & Business Media. This book was released on 2005-08-17 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Astronomical Life – Observing the Depths of the Universe” Though science as a subject can be di?cult, what has been more important for me is that its practice can also be rewarding fun! This book is crafted to expose the reader to the excitement of modern observational cosmology through the study of galaxy evolution over space and cosmic time. Recent extragalactic research has led to many rapid advances in the ?eld. Even a suitable skeptic of certain pronouncements about the age and structure of the Universe should be pleased with the large steps that have been taken in furthering our understanding of the Universe since the early 1990’s. My personal involvement in galaxy research goes back to the 1960’s. At that point, galaxies were easily recognized and partially understood as organized c- lections of stars and gas. What their masses were presented a problem, which I supposed would just fade away. But fade it didn’t. Distant active nuclei and quasars were discovered in the mid-1960’s. A c- mon view of QSOs was that they have large redshifts, but what use are they for cosmology or normal galaxy astrophysics? I shared that conclusion. My expec- tions fell below their potential utility. In short, the Universe of our expectations rarely matches the Universe as it is discovered.
Download or read book Tracing the Ancestry of Galaxies IAU S277 written by Claude Carignan and published by Cambridge University Press. This book was released on 2012-01-12 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: We are living in the golden era of multiwavelength astronomical observations, probing deep areas of the sky. Sophisticated instruments allow us to compare galaxies at high redshifts, when the Universe was only a few hundred millions years old, with the mature nearby galaxies we see today. This is yielding new insights into the mass assembly and the star formation history of galaxies that may, or may not, be compatible with our current theoretical models. IAU Symposium 277 addresses the major open questions concerning the evolution of galaxies, specifically: can we really apply the knowledge gained from low-redshift studies to the high-redshift galaxy populations, given the strong apparent differences in their observed properties? In this volume theorists and observers attempt to reach a common understanding of the puzzles that galaxy research has recently unfolded, largely through the study of galaxy dynamics and their stellar populations at low and high redshifts.
Download or read book The Evolution of Galaxies written by José M. Vilchez and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Galaxies have a history. This has become clear from recent sky surveys showing that distant galaxies, formed early in the life of the Universe, differ from the nearby ones. This book contains the proceedings of a 2000 conference addressing observational clues in this area.
Download or read book The Evolution of Galaxies and Their Environment written by David J. Hollenbach and published by . This book was released on 1993 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Road to Galaxy Formation written by William C. Keel and published by Springer Science & Business Media. This book was released on 2007-08-17 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: The formation of galaxies is one of the greatest puzzles in astronomy, the solution is shrouded in the depths of space and time, but has profound implications for the universe we observe today. This book discusses the beginnings of the process from cosmological observations and calculations. It examines the different theories of galaxy formation and shows where each theory either succeeds or fails in explaining what we actually observe. In addition, the book looks ahead to what we may expect to uncover about the epoch of galaxy formation from the new and upcoming generations of telescopes and technology.
Download or read book Extremes of Galaxy Evolution written by Carla L. Adams and published by . This book was released on 2004 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spectral Evolution of Galaxies written by C. Chiosi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: As it was said by one of the participants to this workshop" In our attempts to understand the spectral evolution of galaxies, we are fortunate indeed to have the ability to look back in time and observe galaxies as they were billions of years ago. Perhaos in no other discipline is it possible to gain such a direct view to hJstory. The galaxies we seek to study are remote, their light faint, and thus only recently has it become technicaJlv feasible to sample the spectra of normal luminosity galaxies at lookback times of five billion years or more" .... or, perhaps. even to see galaxies in the process of their formation. or shortly afterwards. This fourth workshop organized by the "Advanced School ot Astronomy was indeed centered on the "Spectral Evolution of Galaxies". on reviewing and discussing the relevant astrophysical processes and on assessing our current ability to model and understand the evolution of stellar populations. Following an opening session dealing with some outstanding questions of galaxy evolution. Session I addressed the specific problems of galaxy and star formation processes. topics of uncertainty and controversy to which IRAS observations may give novel perspectives. The properties of stellar populations in the local group of galaxies formed the basis of Session II. Session III dealt with the fundaments of the theory of spectral and photometrical evolution of stellar populations. and with recent developments in the theory of stellar structure. a necessary step to model and understand galactic evolution.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Deep Millimeter Surveys Implications For Galaxy Formation And Evolution written by David H Hughes and published by World Scientific. This book was released on 2001-10-29 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: The arrival of large submillimeter and millimeter-wave detector arrays opened a new window on galaxy formation and evolution. The major new facilities now being designed or constructed, such as ALMA (MMA) and the Large Millimeter Telescope (LMT), will soon be expanding the horizons even farther.The Conference on “Deep Millimeter Surveys: Implications for Galaxy Formation and Evolution” drew together the major international groups working on submillimeter and millimeter-wave galaxies to discuss their relation to other galaxies both near by and in the early Universe, the role of the LMT and other new facilities in advancing the new field, and the implications of the new results and models for our understanding of galaxy formation and evolution. The resulting compendium of reports on observations, simulations, theory and interpretation, and instrumentation is the first book to present the new millimeter view of the early Universe thoroughly in a single volume.
Download or read book Tracing S0 Galaxies Evolution Using Planetary Nebulae Kinematics written by Arianna Cortesi and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The stellar kinematics of the spheroids and disks of SO galaxies contain clues to their formation histories. Unfortunately, it is difficult to study these components using con- ventional absorption line spectroscopy - it is difficult to disentangle the two compo- nents and to recover the stellar kinematics in the faint outer parts of the galaxies. This thesis presents data on the stellar kinematics of 6 SO galaxies, in a range of environ- ments, derived from observations using the Planetary Nebula Spectrograph. These datasets allow the study of the kinematics of the faint outer parts of the galaxies, using planetary nebulae as tracers of the stellar populations. We have developed a new maximum-likelihood method that combines these data with a photometric spheroid-disk decomposition, in order to separate the kinematics of the two components. The method was tested on a simulated galaxy to ensure it correctly recovered the galaxy kinematics in the disk and the spheroid. This method is applied to NGC 1023 and the results are compared to a previous kine- matic analysis in the literature. We show that the unusual kinematics previously in- ferred for this galaxy were the result of not separating the disk and spheroid compo- nents. NGC 1023 is in fact found to exhibit spiral-like kinematics, once its components are properly decomposed. The maximum-likelihood clipping applied in the method also reveals a star stream associated with NGC 1023A, confirming the method's ro- bustness against such contaminants and its ability to uncover additional kinematic components. The method is then applied to the full sample of 6 SOs and we show that, with one exception, they have flat rotation curves, ordered motions dominate ran- dom motions in the disks, and the spheroid velocity dispersions remain approximately constant with radius. The derived kinematic parameters are studied and compared to those of spiral and el- liptical galaxies. The inferred circular speeds, after applying the asymmetric drift cor- rection, are in good agreement with those derived directly from gas kinematics, where such data are available. Although primarily rotationally supported, the disks are found to have systematically larger random motions than typical spiral galaxies, with this dif- ference most apparent in the SOs with the largest bulges. By investigating the Tully- Fisher and Faber-Jackson relations for the decomposed disks and spheroids respec- tively, we find that these SOs have systematically fainter disks and brighter spheroids than spiral galaxies and ellipticals in the literature. All these results are consistent with a scenario in which SO galaxies are formed from spirals through a moderately-violent mechanism, such as a series of very minor mergers.
Download or read book Multi wavelength Properties of Submillimeter selected Galaxies written by Laura Jeannine Hainline and published by . This book was released on 2008 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tracing the Ancestry of Galaxies written by International Astronomical Union. Symposium and published by . This book was released on 2011 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: "We are living in the golden era of multiwavelength astronomical observations, probing deep areas of the sky. Sophisticated instruments allow us to compare galaxies at high redshifts, when the Universe was only a few hundred millions years old, with the mature nearby galaxies we see today. This is yielding new insights into the mass assembly and the star formation history of galaxies that may, or may not, be compatible with our current theoretical models. IAU Symposium 277 addresses the major open questions concerning the evolution of galaxies, specifically: can we really apply the knowledge gained from low-redshift studies to the high-redshift galaxy populations, given the strong apparent differences in their observed properties? In this volume theorists and observers attempt to reach a common understanding of the puzzles that galaxy research has recently unfolded, largely through the study of galaxy dynamics and their stellar populations at low and high redshifts."--Page 4 of cover.
Download or read book Tracing Galaxy Evolution Through Spatial and Kinematic Probes of the MgII Circumgalactic Medium written by Nikole Marie Nielsen and published by . This book was released on 2015 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding how galaxies form and evolve is a paramount question today. While it is generally understood that galaxies are built by accreting gas and forming stars, mechanisms which can eventually shut off to form passively evolving red galaxies, the detailed physics are still not completely understood. What has become clear is that the baryon cycle is a key to understanding galaxy evolution and can be studied via the circumgalactic medium (CGM), or the massive, metal-enriched, extended gaseous reservoir surrounding galaxies. Extensive work has gone into examining the CGM using quasar absorption lines in which a background quasar sightline probes the CGM of a foreground galaxy. In this dissertation, we employ nearly three decades of absorber-galaxy survey data focusing on low-ionization MgII absorption to examine the basic structure of the CGM for galaxies in various stages of evolution. We compiled the MgII Absorber-Galaxy Catalog (MAGIICAT) consisting of 182 absorber-galaxy pairs ranging from 0.07
Download or read book Galaxy Formation and Evolution written by Houjun Mo and published by Cambridge University Press. This book was released on 2010-05-20 with total page 841 pages. Available in PDF, EPUB and Kindle. Book excerpt: A coherent introduction for researchers in astronomy, particle physics, and cosmology on the formation and evolution of galaxies.
