Download or read book Formation of the Galactic Halo Inside and Out written by Heather Morrison and published by . This book was released on 1996 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Formation of the Galactic Halo Inside and Out written by George Preston and published by . This book was released on 1996 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Formation of the Galactic Halo written by Amina Helmi and published by . This book was released on 2000 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Formation of the Milky Way written by E. J. Alfaro and published by Cambridge University Press. This book was released on 1995-08-03 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: This review examines all the key physical processes involved in the formation and evolution of the Milky Way, based on an international meeting held in Granada (Spain).
Download or read book A Reservoir of Ionized Gas in the Galactic Halo to Sustain Star Formation in the Milky Way written by Nicolas Lehner and published by . This book was released on 2011 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Evolution of The Milky Way written by F. Matteucci and published by Springer Science & Business Media. This book was released on 2000 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: This review of the most up-to-date observational and theoretical information concerning the chemical evolution of the Milky Way compares the abundances derived from field stars and clusters, giving information on the abundances and dynamics of gas.
Download or read book The Galactic Halo Formation History and Dynamics written by and published by . This book was released on 2020 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Galaxy Evolution Connecting the Distant Universe with the Local Fossil Record written by Monique Spite and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: This up-to-date review of the basic elements directly connected to the evolution of galaxies links data about remote galaxies to the observation of very old populations in our own galaxy. Young researchers and well-known specialists discuss the difficulties and remaining uncertainties of the problem.
Download or read book Introduction to Galaxy Formation and Evolution written by Andrea Cimatti and published by Cambridge University Press. This book was released on 2019-10-17 with total page 587 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive examination of nearly fourteen billion years of galaxy formation and evolution, from primordial gas to present-day galaxies.
Download or read book The Complete Idiot s Guide to Astronomy written by Christopher Gordon De Pree and published by Penguin. This book was released on 2004 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Astronomy is an ancient science on the cutting edge. Although it's been around for more than 5,500 years, astronomers say that we've learned more than 90 percent of what we know about the universe in just the last 50 years. Of this body of knowledge, a disproportionate amount has been acquired in the past decade, with each new year yielding more information than the last. The Complete Idiot's Guide to Astronomy, Third Edition, covers these new advances and discoveries and is repositioned to focus more on exciting, cutting-edge cosmology topics and less on backyard astronomy.
Download or read book The Origin of the Galaxy and Local Group written by Joss Bland-Hawthorn and published by Springer Science & Business Media. This book was released on 2014-02-11 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the updated and expanded lecture notes of the 37th Saas-Fee Advanced Course organised by the Swiss Society for Astrophysics and Astronomy. It offers the most comprehensive and up to date review of one of the hottest research topics in astrophysics - how our Milky Way galaxy formed. Joss Bland-Hawthorn & Ken Freeman lectured on Near Field Cosmology - The Origin of the Galaxy and the Local Group. Francesca Matteucci’s chapter is on Chemical evolution of the Milky Way and its Satellites. As designed by the SSAA, books in this series – and this one too – are targeted at graduate and PhD students and young researchers in astronomy, astrophysics and cosmology. Lecturers and researchers entering the field will also benefit from the book.
Download or read book The Galaxy Disk in Cosmological Context IAU S254 written by International Astronomical Union. Symposium and published by Cambridge University Press. This book was released on 2009-04-16 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: The paradigm of a dark energy- and dark matter-dominated Universe, with the hierarchical merger scenario for the formation of galaxies, has scored impressive successes in matching the observed Universe. However, the theory fails to explain the difficulty in generating ordinary disk galaxies such as the Milky Way, suggesting that some important physics must be missing in current models. IAU Symposium 254 was organized to address this question, gathering researchers from an unusually broad range of fields, from cosmology to interstellar matter, and the formation and evolution of stars. High-class reviews, lectures and posters combine to define the frontiers in the field and point the way to new avenues of research. This volume presents a unique set of succinct overviews illuminating the full range of topics in this very active field. It also honors Danish astrophysicist Bengt Strömgren (1908-1987), who laid much of the foundation for this entire field.
Download or read book Tracing the Evolution of the Galactic Halo Through Asymptotic Giant Branch Stars written by Cherie Kate Fishlock and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discovery of the ongoing accretion of the Sagittarius dwarf spheroidal galaxy confirms that mergers with satellite dwarf galaxies are contributing to the formation of the Galactic halo. Additionally, a number of satellite dwarf galaxies show evidence of pollution by asymptotic giant branch (AGB) stars at around [Fe/H] of -1 as a result of a slower star formation rate than the Galactic halo. However, finding stars that were accreted during the earliest times of the formation of the Galactic halo has been difficult. The study by Nissen & Schuster (2010) uncovered convincing evidence that the Galactic halo hosts two populations that are separated in [a/Fe]. They argued that the low-alpha stars have kinematics consistent with accretion from a satellite galaxy with a slower star formation rate than the high-alpha population which most likely formed in-situ in the Galaxy. The aim of this thesis is to investigate the role AGB stars have had in the chemical enrichment of halo stars that were either accreted from dwarf galaxies or formed in-situ in the Galaxy. Through an analysis of chemical abundances we seek to determine the extent to which the chemical properties of the surviving galaxies are similar to the satellite galaxies that were accreted long ago. With this analysis, we hope to reveal how environmental differences such as the star formation rate have influenced the observed abundance ratios. The sample compiled by Nissen & Schuster (2010) presents a unique opportunity to further investigate the chemical evolution of neutron-capture elements in dwarf galaxies and the Galactic halo through a comparison of the low- and high-alpha populations. Theoretical models play a key role in furthering our understanding of the origin of the elements. In order to understand the influence of AGB stars on the chemical enrichment of the low-alpha stars, we calculate detailed theoretical models of AGB stars at the mean metallicity of the low- and high-alpha populations. We present stellar evolutionary tracks and nucleosynthesis predictions for a grid of stellar models of low- and intermediate-mass AGB stars at Z = 0.001 ([Fe/H] = -1.2). We present the first study of neutron-capture nucleosynthesis in intermediate-mass AGB models at [Fe/H] = -1.2. We also present the first full s-process predictions and yields for a super-AGB star at any metallicity. Neutron-capture elemental abundances have been measured, using high-resolution spectra obtained from Magellan, for a sub-sample of the low- and high-alpha stars compiled by Nissen & Schuster (2010). We find the low-alpha stars display the same chemical signature that is observed in present-day dwarf spheroidal galaxies with low [a/Fe] and [Y/Eu] and high [Ba/Y]. This confirms that the Galactic halo contains a population of stars accreted from dwarf galaxies and that AGB stars were able to contribute to the chemical evolution of the earliest dwarf galaxies.
Download or read book The Evolution of The Milky Way written by Francesca Matteucci and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 605 pages. Available in PDF, EPUB and Kindle. Book excerpt: This review of the most up-to-date observational and theoretical information concerning the chemical evolution of the Milky Way compares the abundances derived from field stars and clusters, giving information on the abundances and dynamics of gas.
Download or read book Galaxy Formation and Mergers with Stars and Massive Black Holes written by Chi-hun Kim and published by Stanford University. This book was released on 2011 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: While mounting observational evidence suggests the coevolution of galaxies and their embedded massive black holes (MBHs), a comprehensive astrophysical understanding which incorporates both galaxies and MBHs has been missing. To tackle the nonlinear processes of galaxy formation, we develop a state-of-the-art numerical framework which self-consistently models the interplay between galactic components: dark matter, gas, stars, and MBHs. Utilizing this physically motivated tool, we present an investigation of a massive star-forming galaxy hosting a slowly growing MBH in a cosmological LCDM simulation. The MBH feedback heats the surrounding gas and locally suppresses star formation in the galactic inner core. In simulations of merging galaxies, the high-resolution adaptive mesh allows us to observe widespread starbursts via shock-induced star formation, and the interplay between the galaxies and their embedding medium. Fast growing MBHs in merging galaxies drive more frequent and powerful jets creating sizable bubbles at the galactic centers. We conclude that the interaction between the interstellar gas, stars and MBHs is critical in understanding the star formation history, black hole accretion history, and cosmological evolution of galaxies. Expanding upon our extensive experience in galactic simulations, we are well poised to apply this tool to other challenging, yet highly rewarding tasks in contemporary astrophysics, such as high-redshift quasar formation.
Download or read book Formation and Evolution of Galaxies and Large Structures in the Universe written by J. Audouze and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Study Institute, La Plagne, France, March, 1983
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1987 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
