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This book offers review chapters written by invited speakers of the 3rd Session of the Sant Cugat Forum on Astrophysics - Gravitational Waves Astrophysics. All chapters have been peer reviewed. The book goes beyond normal conference proceedings in that it provides a wide panorama of the astrophysics of gravitational waves and serves as a reference work for researchers in the field.
In the last 25 years, an extensive body of work has developed various equation of state independent - or (approximately) universal - relations that allow for the inference of neutron star parameters from gravitational wave observations. These works, however, have mostly been focused on singular neutron stars, while our observational efforts at the present, and in the near future, will be focused on binary neutron star (BNS) mergers. In light of these circumstances, the last five years have also given rise to more attempts at developing universal relations that relate BNS pre-merger neutron stars to stellar parameters of the post-merger object, mostly driven by numerical relativity simulation...
This book presents a study of the saturation of unstable f-modes (fundamental modes) due to low-order nonlinear mode coupling. Since their theoretical prediction in 1934, neutron stars have remained among the most challenging objects in the Universe. Gravitational waves emitted by unstable neutron star oscillations can be used to obtain information about their inner structure, that is, the equation of state of dense nuclear matter. After its initial growth phase, the instability is expected to saturate due to nonlinear effects. The saturation amplitude of the unstable mode determines the detectability of the generated gravitational-wave signal, but also affects the evolution of the neutron star. The study shows that the unstable (parent) mode resonantly couples to pairs of stable (daughter) modes, which drain the parent’s energy and make it saturate via a mechanism called parametric resonance instability. Further, it calculates the saturation amplitude of the most unstable f-mode multipoles throughout their so-called instability windows.
The Marcel Grossmann Meetings seek to further the development of the foundations and applications of Einstein's general relativity by promoting theoretical understanding in the relevant fields of physics, mathematics, astronomy and astrophysics and to direct future technological, observational, and experimental efforts. The meetings discuss recent developments in classical and quantum aspects of gravity, and in cosmology and relativistic astrophysics, with major emphasis on mathematical foundations and physical predictions, having the main objective of gathering scientists from diverse backgrounds for deepening our understanding of spacetime structure and reviewing the current state of the a...
Written by award-winning author Peter Norton, this book provides expert advice using a friendly, hands-on, step-by-step approach. This second edition explains the many benefits of Service Pack 1 and, especially, of OEM Service Release (OSR) 2, with Internet addresses from where to download many of these enhancements for free.
The four volumes of the proceedings of MG14 give a broad view of all aspects of gravitational physics and astrophysics, from mathematical issues to recent observations and experiments. The scientific program of the meeting included 35 morning plenary talks over 6 days, 6 evening popular talks and 100 parallel sessions on 84 topics over 4 afternoons.Volume A contains plenary and review talks ranging from the mathematical foundations of classical and quantum gravitational theories including recent developments in string theory, to precision tests of general relativity including progress towards the detection of gravitational waves, and from supernova cosmology to relativistic astrophysics, inc...
A fully illustrated guide to the German Tiger I tank and its operations in the field by the renowned expert on WWII armored vehicles. At Hitler’s insistence, the first Tiger I tanks drove into action in Tunisia in December 1942. Despite their lack of reliability and the small number deployed, they quickly gained a fierce reputation. With its heavy armor and 88mm gun, the Tiger I outclassed all the Allied tanks then in service. Beyond their deployment in North Africa, they also operated in Sicily and Italy between 1943 and 1945. In his second volume in the TankCraft series on the Tiger, Dennis Oliver uses archive photos and extensively researched color illustrations to examine the Tiger tank and the German army units that first took them into combat. Perfect for model enthusiasts, Tiger I showcases available model kits and aftermarket products. It also includes a gallery of beautifully constructed and painted models in various scales. Technical details, as well as modifications introduced during production and in the field, are also examined providing everything the modeler needs to recreate an accurate representation of the tanks.
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