Dwarf Galaxies (IAU S344)

Dwarf Galaxies (IAU S344) PDF

Author: Kristen B. W. McQuinn

Publisher: Cambridge University Press

Published: 2019-09-30

Total Pages: 500

ISBN-13: 9781108471619

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Dwarf galaxies are important tools for understanding structure formation and galaxy evolution across cosmic time. These low-mass systems allow us to gain a detailed understanding of stellar, chemical, and dynamical properties in the nearby universe; they also provide a unique window into the complex physics of the early universe. The Proceedings of IAU Symposium 344 present our current understanding of dwarf galaxies, with sections dedicated to: Local Group dwarf galaxies; the interstellar medium and star formation in dwarfs; metallicity, massive stars, and chemical evolution; the dwarf galaxy-environment connection; low-mass galaxies at high redshift; and dwarfs as cosmological probes. Broad overviews from leaders in the field, detailed presentation of cutting-edge results, and short summaries of a wide range of work are included for each of these topics, suitable for both experts and newcomers to the field.

Low-metallicity Star Formation (IAU S255)

Low-metallicity Star Formation (IAU S255) PDF

Author: International Astronomical Union. Symposium

Publisher:

Published: 2008

Total Pages: 448

ISBN-13:

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Although low-mass metal-poor galaxies in the local universe have often been proposed as the 'primordial building blocks' in the hierarchical scenario of structure formation, several lines of evidence suggest that this may not be true. Moreover, it is not clear to what extent dwarf galaxies, because they are metal poor and because of their kinematics and structure, can tell us about how star formation proceeded in the early universe. This volume provides an overview and the most recent advances in this debate. IAU Symposium 255 presents the most up-to-date developments in six key areas, including: Population III and metal-free star formation; metal-enrichment, chemical evolution and feedback; explosive events in low-metallicity environments; dust and gas as seeds for metal-poor star formation; metal-poor initial mass functions, stellar evolution and star-formation histories; and low-metallicity star formation in the local universe. This overview is at a level suitable for research astronomers and graduate students.

Galaxy Evolution Across the Hubble Time (IAU S235)

Galaxy Evolution Across the Hubble Time (IAU S235) PDF

Author: International Astronomical Union. Symposium

Publisher: Cambridge University Press

Published: 2007-05-17

Total Pages: 480

ISBN-13: 9780521863445

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This last decade has witnessed a revolution in our observations of galaxies; in particular deep imaging with HST and spectroscopy with 10m-class ground-based telescopes have uncovered many objects that are difficult to place along the Hubble sequence. High resolution spectroscopy of extremely faint objects has enabled the study of the kinematic evolution and, hence, the mass assembly of galaxies to unprecedented look-back times for direct comparison with cosmological structure formation scenarios. Thus, it is now possible to study all three aspects of galaxy evolution - their morphological-dynamical, chemical and spectral evolution out to redshift larger than six, exploring more than 95% of the age of the universe. These Proceedings of the IAU Symposium 235 report the considerable progress made in recent years on galaxy formation and evolution, and look forward to the expected breakthroughs in the domain of remote galaxies, with ALMA, the ELT and the next generation space telescopes.

Stellar Populations

Stellar Populations PDF

Author: International Astronomical Union. Symposium

Publisher: Cambridge University Press

Published: 2010

Total Pages: 488

ISBN-13: 9780521764841

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IAU Symposium 262 presents reviews on the current understanding of the theories of stellar evolution, galaxy formation and galaxy evolution. It emphasises what we have learned in the past few years from massive surveys covering large portions of the sky (e.g. SDSS, HDF, UDF, GOODS, COSMOS). Several critical aspects of research on stellar populations deserve further effort in order to be brought in tune with other areas of astrophysical research. The next ten years will see the opening of major observatories that will increase the quality and quantity of astronomical data by orders of magnitude. The expected benefits from these instruments for the study of stellar populations are explored. This critical review of state of the art observational and theoretical work will appeal to all those working on stellar populations, from distant galaxies to local resolved galaxies and galactic star clusters.

Populations of High-Energy Sources in Galaxies (IAU S230)

Populations of High-Energy Sources in Galaxies (IAU S230) PDF

Author: International Astronomical Union. Symposium

Publisher: Cambridge University Press

Published: 2006-06-15

Total Pages: 520

ISBN-13: 9780521852012

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For the last 40 years astronomers have observed sources of intense X-ray radiation from beyond our Solar System. These have been associated with remarkable objects, such as neutron stars and black holes. Current satellite observatories have enabled us to extend the studies of these objects from the Milky Way and Magellanic Clouds to individual X-ray sources in other galaxies. At the same time, imaging facilities at gamma-rays and TeV energies have improved enormously, leading to many further discoveries within our own galaxy. This Symposium presents an overview of these new developments, covering detailed studies of individual sources within the Milky Way, global descriptions of X-ray source populations in other galaxies, and less resolved relatives at high redshift. Galaxy nuclei and diffuse emission components are included, as are new discoveries at gamma-rays and TeV energies. IAU S230 is a valuable resource for astronomers and graduates working in high-energy astrophysics.

Formation and Evolution of Galaxy Outskirts (IAU S321)

Formation and Evolution of Galaxy Outskirts (IAU S321) PDF

Author: Armando Gil de Paz

Publisher: Cambridge University Press

Published: 2017-02-28

Total Pages:

ISBN-13: 9781107169883

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The borders between galaxies and the almost empty intergalactic medium are ill-defined regions where gas struggles to form stars. The proceedings of IAU Symposium 321 summarize our current understanding of the rarefied universe and prepare for the optimal exploitation of upcoming astronomical instruments. They discuss the most recent advances in the study of the stellar, dust and gas content of galaxy outskirts, going from resolved stellar populations in the Milky Way and in the Local Group to the study of high-redshift systems. Such a broad approach, both in terms of galaxy components and evolutionary epochs, is necessary to take full advantage of the recent discoveries made by facilities at all wavelengths, to deepen our knowledge of the assembly and evolution of these elusive regions and to establish their role within the evolution of galaxies as a whole and their interactions with the surrounding intergalactic medium.

The Galaxy Disk in Cosmological Context (IAU S254)

The Galaxy Disk in Cosmological Context (IAU S254) PDF

Author: International Astronomical Union. Symposium

Publisher: Cambridge University Press

Published: 2009-04-16

Total Pages: 542

ISBN-13: 9780521889858

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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.

Astrophysical Masers (IAU S336)

Astrophysical Masers (IAU S336) PDF

Author: International Astronomical Union. Symposium

Publisher: Cambridge University Press

Published: 2018-09-13

Total Pages: 481

ISBN-13: 1107192455

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Summarizes state of the art observations and theories pertaining to astrophysical masers and their environments, for graduate students and researchers.

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