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marr jonathan m.; snell ronald l.; kurtz stanley e. - fundamentals of radio astronomy

Fundamentals of Radio Astronomy Observational Methods

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Dettagli

Genere:Libro
Lingua: Inglese
Editore:

CRC Press

Pubblicazione: 06/2011
Edizione: 1° edizione





Note Editore

As evidenced by five Nobel Prizes in physics, radio astronomy in its 80-year history has contributed greatly to our understanding of the universe. Yet for too long, there has been no suitable textbook on radio astronomy for undergraduate students. Fundamentals of Radio Astronomy: Observational Methods is the first undergraduate-level textbook exclusively devoted to radio astronomy telescopes and observation methods. This book, the first of two volumes, explains the instrumentation and techniques needed to make successful observations in radio astronomy. With examples interspersed throughout and problems at the end of each chapter, it prepares students to contribute to a radio astronomy research team. Requiring no prior knowledge of astronomy, the text begins with a review of pertinent astronomy basics. It then discusses radiation physics, the collection and detection of astronomical radio signals using radio telescopes, the functioning of various components of radio telescopes, and the processes involved in making successful radio observations. The book also provides a conceptual understanding of the fundamental principles of aperture synthesis and a more advanced undergraduate-level discussion of real-world interferometry observations. Web ResourceA set of laboratory exercises is available for download on the book’s CRC Press web page. These labs use the Small Radio Telescope (SRT) and the Very Small Radio Telescope (VSRT) developed for educational use by MIT’s Haystack Observatory. The web page also includes a Java package that demonstrates the principles of Fourier transforms, which are needed for the analysis of interferometric data.




Sommario

Introductory MaterialBrief History of Radio AstronomySome Fundamentals of Radio WavesFinding Our Way in the SkyBasic Structure of a Traditional Radio TelescopeRadio Maps Introduction to Radiation PhysicsMeasures of the Amount of RadiationBlackbody RadiationRayleigh–Jeans ApproximationBrightness TemperatureCoherent RadiationInterference of LightPolarization of Radiation Radio TelescopesRadio Telescope Reflectors, Antennas, and FeedsHeterodyne ReceiversNoise, Noise Temperature, and Antenna TemperatureBolometer DetectorsSpectrometersVery Low-Frequency Radio Astronomy Single-Dish Radio Telescope ObservationsBasic Measurements with a Single-Dish TelescopeAntenna BeamObserving Resolved versus Unresolved SourcesSpectral-Line ObservationsObtaining Radio ImagesCalibration of a Radio TelescopeTelescope Sensitivity Considerations in Planning an ObservationPolarization Calibration Aperture Synthesis Basics: Two-Element InterferometersWhy Aperture Synthesis?Two-Element InterferometerObservations of a Single Point SourceFringe FunctionVisibility FunctionObservations of a Pair of Unresolved SourcesObservations of a Single Extended SourceCoherence and the Effects of Finite Bandwidth and Integration TimeBasic Principles of Interferometry Aperture Synthesis: Advanced DiscussionCross-Correlation of Received SignalsComplex-Valued Cross CorrelationComplex Correlation of a Point Source at a Single FrequencyExtended Sources and the Fourier TransformFourier Transforms for Some Common Source ShapesThree Dimensions, the Earth's Rotation, and the Complex Fringe FunctionNonzero Bandwidth and Finite Integration TimeSource Structure and the Visibility FunctionThe Earth's Rotation and uv TracksInterferometers as Spatial FiltersSensitivity and Detection LimitsCalibrationImage FormationVery Long Baseline Interferometry Appendices Questions and Problems appear at the end of each chapter.




Autore

Jonathan M. Marr is a senior lecturer of physics and astronomy at Union College. His research involves high-resolution, radio-wavelength observations of radio galaxies and the Galactic center. He earned a PhD in astronomy from the University of California, Berkeley. Ronald L. Snell is a professor of astronomy at the University of Massachusetts, Amherst. His research interests include the physical and chemical properties of molecular clouds, star formation, and molecular outflows; he also has extensive experience observing at radio wavelengths. He earned a PhD in astronomy from the University of Texas at Austin. Stanley E. Kurtz is a professor of radio astronomy and astrophysics at the National Autonomous University of Mexico. His research interests include massive star formation, the interstellar medium, and radio astronomy instrumentation and techniques. He earned a PhD in physics from the University of Wisconsin at Madison.










Altre Informazioni

ISBN:

9781420076769

Condizione: Nuovo
Collana: Series in Astronomy and Astrophysics
Dimensioni: 10 x 7 in Ø 1.70 lb
Formato: Copertina rigida
Illustration Notes:144 b/w images, 7 color images, 4 tables and 549 Equations
Pagine Arabe: 352
Pagine Romane: xvi


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