Sirius Matters
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Beschreibung
Since very early times Sirius was a point of attraction in the night sky. It served to synchronize calendars in antiquity and was the subject of many myths and legends, including some modern ones. It was perceived as a red star for more than 400 years, but such reports were relegated to the Mediterranean region. Astronomically, Sirius is a very bright star. This, and its present close distance to us, argues in favor of it being the target of detailed studies of stellar structure and evolution. Its binary nature, with a companion that is one of the more massive white dwarfs, is an additional reason for such studies. This book collects the published information on Sirius in an attempt to derive a coherent picture of how this system came to look as it does.
Since very early times Sirius was a point of attraction in the night sky. It served to synchronize calendars in antiquity and was the subject of many myths and legends, including some modern ones. It was perceived as a red star for more than 400 years, but such reports were relegated to the Mediterranean region. Astronomically, Sirius is a very bright star. This, and its present close distance to us, argues in favor of it being the target of detailed studies of stellar structure and evolution. Its binary nature, with a companion that is one of the more massive white dwarfs, is an additional reason for such studies. This book collects the published information on Sirius in an attempt to derive a coherent picture of how this system came to look as it does.
Presents the historical and astrophysical context of Sirius at an advanced level The historical evidence for redness is not dismissed out-of-hand but is examined in detail, considering possible physical explanations Intriguing issues in the evolution of this binary system are pointed out: a very massive white dwarf, the elliptical orbit, a metallic-line primary
Autor*in
Noah Brosch
Themen in »Sirius Matters«
Astrometry Redshift Sirius book Star bright binary system stellar stellar astrophysics Sirius stellar evolution Sirius
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From the reviews:
“The author seems to have summarised almost everything that is known about Sirius. … will be understandable to anyone with a basic knowledge of physics … . There is a diversity of interesting pictures, graphs and diagrams, including satellite data and dramatic images … . Brosch writes for the educated reader, and even non-scientists will be able to enjoy large parts of his opus, especially the historical and ethnographical sections. It is a delightful book that can be recommended warmly to all … .” (Peter V. E. McClintock, Contemporary Physics, Vol. 51 (5), 2010)()