Supernovae

Supernovae mark the deaths of massive stars or of white dwarfs in binary systems, and are unbelievably violent events. Even when they occur in galaxies millions of light years away they can be within the reach of amateur astronomers' telescopes.

More than 400 supernovae have already been discovered by amateurs.

Supernovae and How to Observe Them is a mine of information for all levels of amateur astronomer, from relative beginners to experienced observers. Whether you are interested in the supernova physics, observing supernovae and supernova remnants, measuring their spectra or even discovering new supernovae yourself, this book provides all the information you need.

Auteur

Martin Mobberley has a BSc Honours degree in Electronic Engineering from Brunel University, and is a former British Astronomical Association President and Goodacre Medallist.

He is also the author of Astronomical Equipment for Amateurs (1998) and The New Amateur Astronomer (2004); and has contributed chapters to three other Springer Practical Astronomy Series Books. He wrote the children's book Space Navigator , and has published many papers in Astronomy Now, The Journal of the British Astronomical Association, The Astronomer, and Sky & Telescope.

Résumé
Supernova explosions, which mark the deaths of massive stars or of white dwarf stars in binary systems,are unbelievably violent events. Despite occurring in gal- ies many millions of light-years away,amateur telescopes can reveal these colossal explosions,and even discover them. In the past 25 years,the amateur astronomer's contribution to supernova research has been staggering. Visual variable star observers with access to large-aperture amateur telescopes have contributed a steady stream of magnitude estimates of the brightest and closest supernovae. In addition, with the increasing availability of robotic telescopes and CCD techn- ogy, more and more amateurs are discovering supernovae from their backyards. Worldwide, there have been more than 400 supernovae discovered by amateur astronomers using amateur telescopes. Supernova research has never been so important. Recent professional measurements of the most distant Type Ia sup- novae have revealed the staggering and unexpected discovery that the acceleration of the Universe is actually increasing! This,in turn,has led to a new phrase, dark energy,entering the astronomical vocabulary; a mysterious force,in opposition to gravity, driving the accelerated expansion. Although amateurs cannot study the farthest supernovae,their discovery and measurement of the closer examples helps to re?ne the science that is the hottest topic in cosmology today; that is,pinning down the history of the Universe and how much mass and energy exists within it today. As always, amateur astronomers are making a valuable contribution, and, hopefully, this book might inspire a few more to monitor and discover new supernovae. Martin Mobberley Suffolk, U. K.

Contenu
Supernovae: Physics and Statistics.- Supernova Physics.- Supernovae to Measure the Universe.- Supernovae in Our Neighborhood.- The Top 100 Extragalactic Supernovae.- Supernovae: A Threat to Life on Earth.- Observing and Discovering Supernovae.- Supernovae as Visual Variable Stars.- Supernova Photometry and Light Curves.- Supernova Spectroscopy.- Amateur Supernova Hunting in the 21st Century.- The Discoverers Themselves.- Searching the Messier Galaxies.- Searching the Caldwell Galaxies.- Observing Supernova Remnants.