Improving the Extragalactic Distance Scale Using Cepheids in M33

Improving the Extragalactic Distance Scale Using Cepheids in M33 PDF Author: Victoria Scowcroft
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Improving the Extragalactic Distance Scale Using Cepheids in M33

Improving the Extragalactic Distance Scale Using Cepheids in M33 PDF Author: Victoria Scowcroft
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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The Extragalactic Distance Scale

The Extragalactic Distance Scale PDF Author: Space Telescope Science Institute (U.S.). Symposium
Publisher: Cambridge University Press
ISBN: 9780521591645
Category : Science
Languages : en
Pages : 354

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Book Description
One of the hottest debates in astronomy and cosmology today concerns the value of the Hubble constant. This constant is of paramount importance since it fixes the size and age of the Universe. At a symposium at the Space Telescope Science Institute, experts from around the world presented the latest results from a plethora of techniques for determining the Hubble constant. The value has always been controversial, but at this meeting experts' results agreed for the first time to within about 20%. Based on the meeting, this book presents twenty-three specially written review articles. They provide a comprehensive account of the Hubble-constant debate with the latest results from gravitational lensing, supernovae and novae, the Tully-Fisher relation, the Sunyaev-Zeldovich effect, globular clusters, planetary nebulae, light echoes, and the Hubble Space Telescope Key Project. This timely volume provides a standard reference for graduate students and researchers in astronomy and cosmology.

New Perspectives on Stellar Pulsation and Pulsating Variable Stars

New Perspectives on Stellar Pulsation and Pulsating Variable Stars PDF Author: James M. Nemec
Publisher: Cambridge University Press
ISBN: 9780521443821
Category : Science
Languages : en
Pages : 474

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Book Description
How can the interior of the Sun, white dwarfs and other stars be studied by stellar seismology? What can Doppler imaging tell us about high-degree pulsations? What impact are CCD and infrared observations having on extending the Cepheid and RR Lyrae distance scale? And how are other classes of pulsators providing independent checks of the distance scale? These and many other critical questions are answered in this timely review of the dramatic advances made in pulsating star research in the last decade. This survey collects together more than thirty comprehensive reviews and over one hundred summaries of research papers from the 139th IAU Colloquium, held in Victoria, British Columbia. Together these cover all aspects of recent developments in the field of variable star research and preview some of the exciting advances anticipated for the next decade. This volume provides an essential review for graduate students and researchers.

Stellar Candles for the Extragalactic Distance Scale

Stellar Candles for the Extragalactic Distance Scale PDF Author: Danielle Alloin
Publisher: Springer Science & Business Media
ISBN: 9783540201281
Category : Science
Languages : en
Pages : 334

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Book Description
This volume reviews the current status with respect to both theory and observation of the extragalactic distance scale. A sufficient accuracy is required both for a precise determination of the cosmological parameters and also in order to achieve a better understanding of physical processes in extragalactic systems. The "standard candles", used to set up the extragalactic distance scale, reviewed in this book include cepheid variables, RR Lyrae variables, novae, Type Ia and Type II supernovae as well as globular clusters and planetary nebulae.

NOAO-NSO Newsletter

NOAO-NSO Newsletter PDF Author:
Publisher:
ISBN:
Category : Astronomical observatories
Languages : en
Pages : 408

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Binary Stars as Critical Tools and Tests in Contemporary Astrophysics (IAU S240)

Binary Stars as Critical Tools and Tests in Contemporary Astrophysics (IAU S240) PDF Author: International Astronomical Union. Symposium
Publisher: Cambridge University Press
ISBN: 9780521863483
Category : Science
Languages : en
Pages : 524

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Book Description
IAU S240 focuses on recent advances across the broad field of binary star research.

Deciphering the Universe through Spectroscopy

Deciphering the Universe through Spectroscopy PDF Author: Regina von Berlepsch
Publisher: John Wiley & Sons
ISBN: 3527643850
Category : Science
Languages : en
Pages : 231

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Book Description
This 22nd volume in the series contains 15 invited reviews and highlight contributions from outstanding speakers presented during the 2009 annual meeting of the Astronomical Society on the subject of "Deciphering the Universe through Spectroscopy", held in Potsdam, Germany. Topics range from the measurements of magnetic fields on the surface of the sun via detailed measurements of abundances in stellar atmospheres to the kinematics of the universe at its largest scales. The result is a systematic overview of the latest astronomical and cosmological research.

Measuring and Modeling the Universe: Volume 2, Carnegie Observatories Astrophysics Series

Measuring and Modeling the Universe: Volume 2, Carnegie Observatories Astrophysics Series PDF Author: Wendy L. Freedman
Publisher: Cambridge University Press
ISBN: 9780521755764
Category : Science
Languages : en
Pages : 420

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Book Description
This comprehensive volume reviews the current theory and measurement of various parameters related to the evolution of the universe. Topics include inflation, string theory and the history of cosmology in the context of current measurements being made of the Hubble constant, matter density, and dark energy. Observational results are included from the Sloan, Digital Sky Survey, Keck, Magellan, cosmic microwave background experiments, Hubble space telescope and Chandra. Featuring chapters by leading authorities in the field, this book is a valuable resource for graduate students and professional research astronomers.

Modern Cosmological Observations and Problems

Modern Cosmological Observations and Problems PDF Author: Gregory Bothun
Publisher: CRC Press
ISBN: 1000162710
Category : Science
Languages : en
Pages : 324

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Book Description
In recent years an enormous amount of cosmological data has come from well known projects such as the Hubble Space Telescope (HST) and the Cosmic Background Explorer (COBE). This book explains and makes sense of this vast array of new observational data in terms of its impact on current cosmological models. With new theories and a plethora of data feeding cosmology in the 1990s, Gregory Bothun sets about the task of re- assessing our cosmological models. He outlines exactly what the latest observations are, and how they should be seen as either consistent or in conflict with current cosmogenic scenarios. In this search for a reconciliation of current data with competing theory, he explains how Einstein's idea of a cosmological constant has now become a viable hypothesis. This authoritative text should be valuable to all those studying cosmological observations at advanced undergraduate or beginning graduate level. Bothun draws a path through cosmology by defining a trajectory that is based on the data. This should also provide a framework for professional cosmologists and related readers in physics as it presents a solid observational foundation which either supports or conflicts with present theory. The book is illustrated including many CCD images of galaxies. Given the rapidly changing nature of the field, this book is supported by a World Wide Web site of supplementary material that is designed to readily update the material in the book.

The Hubble Constant Tension

The Hubble Constant Tension PDF Author: Eleonora Di Valentino
Publisher: Springer Nature
ISBN: 9819901774
Category :
Languages : en
Pages : 674

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Book Description