The Nature Of Dusty Star Forming Galaxies
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The Nature Of Dusty Star Forming Galaxies
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Author : William Cowley
language : en
Publisher: Springer
Release Date : 2017-10-02
The Nature Of Dusty Star Forming Galaxies written by William Cowley and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-10-02 with Science categories.
This thesis combines a theoretical model of galaxy formation with a treatment of the radiative transfer in the titular dusty star-forming galaxies. Embedding this within the well-established ΛCDM (Lambda cold dark matter) cosmology, the author was able to simulate galaxy populations from which realistic observational images were synthesised. Based on further analysis, he shows that there is a good correspondence with observations from new instruments such as the SCUBA2 bolometric camera and the Atacama Large Millimeter Array (ALMA) interferometer, and reveals some novel aspects of this exciting galaxy population. In particular, he shows that blending of these galaxies in the imaging produces an artificial enhancement in their clustering, which he dubs “blending bias”. This implies that the host dark matter halo masses for these galaxies have previously been significantly overestimated. He also presents amongst the first predictions from a galaxy formation model for observations of these galaxies that will be made by the James Webb Space Telescope (the successor to the Hubble Space Telescope).
Burning Dust In Star Forming Galaxies
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Author : L. Young Joshua
language : en
Publisher:
Release Date : 2023-10-06
Burning Dust In Star Forming Galaxies written by L. Young Joshua and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-10-06 with Science categories.
This book explores the critical need for a comprehensive census of supermassive black holes in the local universe, particularly within low mass galaxies. Supermassive black holes play a crucial role in the co-evolution of active galactic nuclei (AGN) and their host galaxies. To uncover these elusive entities, infrared selection criteria, such as the [3.4]-[4.6] m (W1-W2) color, offer a valuable method for detecting obscured AGN that might remain hidden in X-ray or optical surveys. Recent research has revealed a surprising abundance of AGN in low mass galaxies, challenging traditional optical selection criteria. Furthermore, it suggests a substantial population of obscured AGN, particularly in low mass galaxies. However, the nature of the dust heating that leads to high W1-W2 color remains a question
Night Vision
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Author : Michael Rowan-Robinson
language : en
Publisher: Cambridge University Press
Release Date : 2013-04-08
Night Vision written by Michael Rowan-Robinson and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-08 with Nature categories.
Michael Rowan-Robinson provides a comprehensive history of infrared astronomy in this accessible and well-illustrated guide.
Deep Millimeter Surveys Implications For Galaxy Formation And Evolution
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Author : David H Hughes
language : en
Publisher: World Scientific
Release Date : 2001-10-29
Deep Millimeter Surveys Implications For Galaxy Formation And Evolution written by David H Hughes and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-10-29 with Science categories.
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.
More Things In The Heavens
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Author : Michael Werner
language : en
Publisher: Princeton University Press
Release Date : 2019-06-25
More Things In The Heavens written by Michael Werner and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-06-25 with Science categories.
A sweeping tour of the infrared universe as seen through the eyes of NASA’s Spitzer Space Telescope Astronomers have been studying the heavens for thousands of years, but until recently much of the cosmos has been invisible to the human eye. Launched in 2003, the Spitzer Space Telescope has brought the infrared universe into focus as never before. Michael Werner and Peter Eisenhardt are among the scientists who worked for decades to bring this historic mission to life. Here is their inside story of how Spitzer continues to carry out cutting-edge infrared astronomy to help answer fundamental questions that have intrigued humankind since time immemorial: Where did we come from? How did the universe evolve? Are we alone? In this panoramic book, Werner and Eisenhardt take readers on a breathtaking guided tour of the cosmos in the infrared, beginning in our solar system and venturing ever outward toward the distant origins of the expanding universe. They explain how astronomers use the infrared to observe celestial bodies that are too cold or too far away for their light to be seen by the eye, to conduct deep surveys of galaxies as they appeared at the dawn of time, and to peer through dense cosmic clouds that obscure major events in the life cycles of planets, stars, and galaxies. Featuring many of Spitzer’s spectacular images, More Things in the Heavens provides a thrilling look at how infrared astronomy is aiding the search for exoplanets and extraterrestrial life, and transforming our understanding of the history and evolution of our universe.
Origins Of Life
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Author : Vlado Valkovic
language : en
Publisher: CRC Press
Release Date : 2021-11-10
Origins Of Life written by Vlado Valkovic and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-11-10 with Science categories.
The primary purpose of this book is to prepare the ground for coordinated efforts aiming to answer the question: where and when life originated. The appearance of life involves three successive stages: i) the formation of chemical elements and their combination to simple molecules, which is the concern of physicists; ii) the evolution of organized complexity in biomolecules and their reactions, which falls within the field of chemistry; iii) the onset of Darwinian evolution after the appearance of the first cell-like structure, which is studied by biologists. This book focuses on the first two steps of this process with chapters exploring topics such as chemical element abundances; galaxies, galactic magnetic fields and cosmic rays; galactic chemical evolution. Key Features: Contains extensive lists of reference and additional reading. Includes new hypotheses concerning the origin of life. Combines consideration from nuclear physics, astrophysics, astro- and geochemistry. Despite its interdisciplinary nature, this book remains accessible to nonexperts, and would be a valuable companion for both experts and laypeople.
From Extrasolar Planets To Cosmology
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Author : Jacqueline Bergeron
language : en
Publisher: Springer Science & Business Media
Release Date : 2000-04-14
From Extrasolar Planets To Cosmology written by Jacqueline Bergeron and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-04-14 with Science categories.
This symposium was dedicated to science opportunities with the VLT. All major areas of astronomical research were discussed in the plenary sessions, ranging from where we stand in cosmology to the new frontiers in the solar system. The workshops published in this volume focussed on different ways of finding clusters of galaxies at high redshift, on gravitational lensing by distant compact clusters, on the use of stellar populations as distance, age or abundance indicators, and on the extraordinary progress made in the discovery of extrasolar planets. This book affords a glimpse of what will be at the center of astrophysical research in the forthcoming decade. It is addressed to researchers and graduate students.
Multiwavelength Mapping Of Galaxy Formation And Evolution
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Author : Alvio Renzini
language : en
Publisher: Springer Science & Business Media
Release Date : 2005-05-23
Multiwavelength Mapping Of Galaxy Formation And Evolution written by Alvio Renzini and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-05-23 with Science categories.
The possibilities of astronomical observation have dramatically increased over the last decade. Major satellites, like the Hubble Space Telescope, Chandra and XMM Newton, are complemented by numerous large ground-based observatories, from 8m-10m optical telescopes to sub-mm and radio facilities. As a result, observational astronomy has access to virtually the whole electromagnetic spectrum of galaxies, even at high redshifts. Theoretical models of galaxy formation and cosmological evolution now face a serious challenge to match the plethora of observational data. In October 2003, over 170 astronomers from 15 countries met for a 4-day workshop to extensively illustrate and discuss all major observational projects and ongoing theoretical efforts to model galaxy formation and evolution. This volume contains the complete proceedings of this meeting and is therefore a unique and timely overview of the current state of research in this rapidly evolving field.
Physics Of Star Formation In Galaxies
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Author : F. Palla
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-07-06
Physics Of Star Formation In Galaxies written by F. Palla and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-07-06 with Science categories.
The book begins with a historical introduction, "Star Formation: The Early History", that presents new material of interest for students and historians of science. This is followed by two long articles on "Pre-Main-Sequence Evolution of Stars and Young Clusters" and "Observations of Young Stellar Objects". These articles on the fascinating problem of star formation from interstellar matter give a thorough overview of present-day theories and observations. The articles contain material so far unpublished in the astronomical literature. The book addresses graduate students and can be used as a textbook for advanced courses in stellar astrophysics.
Cosmic Explosions
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Author : Edo Berger
language : en
Publisher: Universal-Publishers
Release Date : 2004
Cosmic Explosions written by Edo Berger and has been published by Universal-Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Science categories.
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.