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 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 Galaxies Through Cosmic Time written by Joel Robert Leja and published by . This book was released on 2019 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, I describe how observations of stellar mass and star formation rate properties of galaxies over cosmic time can be converted into the stellar mass assembly history of galaxies. I first postulate that the stellar mass rank-order of galaxies is preserved through cosmic time, and test whether this is true in a semi-analytical model of galaxy formation. I find that assuming preservation of stellar mass rank order reproduces the median stellar mass growth of a galaxy population to within 40% from z = 3 to z = 0 over a wide range in galaxy properties. I establish that the discrepancy mainly results from scatter in stellar mass growth rates, and galaxy-galaxy mergers. The main uncertainties in this work are that the semi-analytical model does not reproduce the observed evolution of the stellar mass function, and that the scatter in growth rates about the median may be substantial.
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 2002-09-20 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by one of the leading authorities in the field, this is one of the first book's to describe one of today's most important problems in cosmology - the formation of galaxies. The book tackles this great puzzle by discusses the beginnings of the process from cosmological observations and calculations, considers the broad features of galaxies that we need to explain and what we know of their later history. The author compares the competing theories for galaxy formation and considers the progress expected from new generations of powerful telescopes both on earth and in space. An intriguing text on one of today's greatest and most profound puzzles.
Download or read book The Environment and Evolution of Galaxies written by J.M. Shull and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: In July 1992, over 300 astronomers attended the Third Tetons Summer School on the subject of `The Environment and Evolution of Galaxies'. This book presents 28 papers based on invited review talks and a panel discussion on `The Nature of High Redshift Objects'. The major themes include: the Interstellar and Intergalactic Medium, Galaxy Formation and Evolution, Cooling Flows, Quasars and Radiation Backgrounds, and Interactions between Galaxies/AGNs and their Environment. Recent advances with the ROSAT, COBE and Hubble Space Telescope are discussed, together with current theoretical developments. The tutorial nature of the papers make this book a valuable supplement for professional astonomers, graduate students, and senior undergraduates. As with previous Tetons conferences, this book provides both the current state of observational and theoretical research and material complementary to courses in extragalactic and interstellar astrophysics.
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 Astroquizzical the Illustrated Edition written by Jillian Scudder and published by . This book was released on 2021-09-28 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Tracing Back the Cosmic History of Galaxy Formation with the Large ALMA Interferometer written by Maximilien Franco and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this thesis was to better understand the cosmic history of galaxy formation thanks to the largest cosmological survey with the large ALMA interferometer. This observation was preformed in a region of the sky, the GOODS-South field, which benefits from the deepest observations of the Hubble Space Telescope, the Spitzer and Herschel infrared space observatories, as well as data from the Chandra X-ray telescope and the VLA Radio Interferometer. These observations at 1.1mm with ALMA therefore complete this multi-wavelength panorama, and make this region of the sky a leading laboratory for the study of the evolution of galaxies. The observation with ALMA allows us to observe this region of the sky without being affected by the confusion limit that affected Herschel, and to search for more distant galaxies. For the first time, we can study dust-obscured star formation at z > 2 over a large enough area to reduce different observational biases.A large part of this thesis was devoted to the scientific exploitation of this 1.1mm cosmological image. This was done by analysing the image from the interferometric data, precisely characterising the survey, defining detectability thresholds and indicators that can quantify the credibility of detections, and carrying out simulations on these images. We then extracted and identified the galaxies present in the image.This analysis shows that ALMA surveys can reveal new galaxies that are not detected by the deepest surveys conducted with the Hubble Space Telescope. These ``dark" galaxies are among the most massive and distant galaxies in this region of the sky. The discovery of these new dark galaxies, which represent of the order of 10 - 20% of the ALMA detections, suggests that the number of massive star-forming galaxies in the distant universe may be much larger than previously expected. This work has also made it possible to determine properties of the galaxies detected by ALMA, through the modelling of their spectral energy distributions: the star formation rate, the masses of gas and dust, the dust temperature, the time required for a galaxy to consume its gas, the relationship between the infrared luminosity and the radio luminosity, and the excess of the infrared component in the spectrum of a galaxy. Analysis of these findings suggests that massive galaxies at high redshift consume their gas slowly to form stars and indicate that these galaxies are the ideal progenitors of passive galaxies at z∼2.
Download or read book Perspectives written by William F Brown and published by FriesenPress. This book was released on 2016-03-06 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the first seconds Following the Big Bang, to our best guesses for the fate of the universe and humanity, science provides stunning new perspectives about the place of humanity in the cosmos. Humans may live on one planet in one small corner of the Milky Way, itself one of billions of other galaxies, but Earth may be unique in one respect. Earth is teaming with life, one species of which, through chance and natural selection, developed an extraordinary brain, gifted with imagination, curiosity and a compulsion to understand ourselves and the universe. Perspectives is a journey through deep time, from the creation of the universe to the beginnings of life, our human origins and later the rise of culture and religion. It explores what it means to be human, and where our technology could take us in the years and centuries to come. www.williamfbrown.com
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 From the Realm of the Nebulae to Populations of Galaxies written by Mauro D'Onofrio and published by Springer. This book was released on 2016-07-26 with total page 809 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to outline possible future directions in galaxy research, this book wants to be a short stopover, a moment of self-reflection of the past century of achievements in this area. Since the pioneering years of galaxy research in the early 20th century, the research on galaxies has seen a relentless advance directly connected to the parallel exponential growth of new technologies. Through a series of interviews with distinguished astronomers the editors provide a snapshot of the achievements obtained in understanding galaxies. While many initial questions about their nature have been addressed, many are still open and require new efforts to achieve a solution. The discussions may reveal paradigms worthwhile revisiting. With the help of some of those scientists who have contributed to it, the editors sketch the history of this scientific journey and ask them for inspirations for future directions of galaxy research.
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 The Galaxy written by William Conant Church and published by . This book was released on 1877 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tracing the Formation and Evolution of Massive Elliptical Galaxies written by Roozbeh Davari and published by . This book was released on 2015 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the first set of simulations, by accurately capturing the detailed substructures of nearby elliptical galaxies and then rescaling their sizes and signal-to-noise to mimic galaxies at different redshifts, we confirm that the massive quiescent galaxies at z ≈ 2 are significantly more compact intrinsically than their local counterparts. Their observed compactness is not a result of missing faint outer light due to systematic errors in modeling.
Download or read book Galaxies and Cosmology written by Francoise COMBES and published by Springer Science & Business Media. This book was released on 2004-08-11 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unique in its breadth of coverage and level of presentation, this revised textbook provides more on the nature of galaxies, extragalactic objects, the large-scale structure of the Universe, and cosmology than is available in general textbooks on astronomy. It remains, however, accessible to advanced undergraduate students. One or more chapters are devoted to each of the following: the classification and morphology of galaxies; the galactic interstellar medium; galactic kinematics; elliptical, spiral, and barred spiral galaxies; the interactions between galaxies; extragalactic radio sources, quasars and their line spectra, and other active galactic nuclei; the formation of galaxies; the Universe as a whole; and cosmology.
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:
