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The Most Interesting Galaxies in the Universe

Joel L Schiff

Description

Prior to the 1920s it was generally thought, with a few exceptions, that our galaxy, the Milky Way, was the entire universe. Based on the work of Henrietta Leavitt with Cepheid variables, astronomer Edwin Hubble was able to determine that the Andromeda Galaxy and others had to lie outside our own. Moreover, based on the work of Vesto Slipher, involving the redshifts of these galaxies, Hubble was able to determine that the universe was not static, as had been previously thought, but expanding.

The number of galaxies has also been expanding, with estimates varying from 100 billion to 2 trillion. While every galaxy in the universe is interesting just by its very fact of being, the author has selected 60 of those that possess some unusual qualities that make them of particular interest. These galaxies have complex evolutionary histories, with some having supermassive black holes at their core, others are powerful radio sources, a very few are relatively nearby and even visible to the naked eye, whereas the light from one recent discovery has been travelling for the past 13.4 billion years, and from a time when the universe was in its infancy. And despite the vastness of the universe, some galaxies are colliding with others, embraced in a graceful gravitational dance. Indeed, as the Andromeda Galaxy is heading towards us, a similar fate awaits our Milky Way.

When looking at a modern image of a galaxy, one is in awe at the shear wondrous nature of such a magnificent creation, with its boundless secrets that it is keeping from us, its endless possibilities for harboring alien civilizations, and we remain left with the ultimate knowledge that we are connected to its glory.

About Editors

Joel L Schiff has a PhD in mathematics from the University of California, Los Angeles. He spent his career at the University of Auckland and has written three books on mathematical subjects and one about the exotic nature of orchids, but astronomy has always remained a passion since receiving a small telescope as a young boy. He was the founder/publisher of the international journal Meteorite, and in 1999, he and his wife, discovered a new asteroid from their backyard observatory.

Table of Contents

Preface

Part I Introduction
I Historical Background
II Brief History of the Universe
III Let There be Light
IV Stars
V Galaxies
VI Measuring the Universe

Part II Galaxies
Part III Appendices

References
Acknowledgements

Bibliographic

Paperback ISBN: 9780750329392

Ebook ISBN: 9781643270036

DOI: 10.1088/978-1-64327-004-3

Publisher: Morgan & Claypool Publishers

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