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What Is Dark Matter?
Peter Fisher
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Naturwissenschaften, Medizin, Informatik, Technik / Naturwissenschaften allgemein
Beschreibung
What we know about dark matter and what we have yet to discover
Astronomical observations have confirmed dark matter’s existence, but what exactly is dark matter? In What Is Dark Matter?, particle physicist Peter Fisher introduces readers to one of the most intriguing frontiers of physics. We cannot actually see dark matter, a mysterious, nonluminous form of matter that is believed to account for about 27 percent of the mass-energy balance in the universe. But we know dark matter is present by observing its ghostly gravitational effects on the behavior and evolution of galaxies. Fisher brings readers quickly up to speed regarding the current state of the dark matter problem, offering relevant historical context as well as a close look at the cutting-edge research focused on revealing dark matter’s true nature.
Could dark matter be a new type of particle—an axion or a Weakly Interacting Massive Particle (WIMP)—or something else? What have physicists ruled out so far—and why? What experimental searches are now underway and planned for the near future, in hopes of detecting dark matter on Earth or in space? Fisher explores these questions and more, illuminating what is known and unknown, and what a triumph it will be when scientists discover dark matter’s identity at last.
Kundenbewertungen
Density, Cosmic ray, Beta particle, Astrophysics, Doppler effect, Hadron, Dark matter halo, Axion, Gamma ray, Requirement, Discriminant, Beta decay, Supermassive black hole, Threshold energy, Phonon, Fermion, Sterile neutrino, Background noise, Baryon, Alpha decay, Compound interest, Explanation, Quantum mechanics, Gravitational acceleration, Annihilation, Neutrino, Vibration, Photon, Antiparticle, Coma Cluster, Decay product, Neutron, Positron, Temperature, Gravitational field, Muon, Lepton, Gluon, Wavelength, Antiproton, Inflaton, Dark photon, Theory, Higgs boson, Galaxy cluster, Weak interaction, Astronomer, Parameter, Primordial black hole, Scattering, Axion Dark Matter Experiment, Massless particle, State of matter, Cryogenic Dark Matter Search, Particle decay, Magnetic field, Particle detector, Low frequency, Azimuth, Dark energy, Dark matter, Asymmetry, Measurement, Bending, Vacuum expectation value, Hubble's law, Radioactive decay, Gravity, Phase transition, Probability