Blackbody Spectrum
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Algumas peculiaridades da radiação associada a uma eletrodinâmica que viola a simetria de Lorentz / Peculiarities in the radiation from a Lorentz-violating electrodynamics
Nós discutimos uma teoria de campos efetiva em (3+1) dimensões incorporando violações da simetria de Lorentz. O modelo considerado é o Modelo Padrão Estendido (MPE), que incorpora violações da simetria de Lorentz indepedentes do observador mais geral possível. Uma breve revisão sobre este modelo é apresentada com particular ênfase no setor de cal
Publicado em: 2009
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2. Design and testing of ECE radiometer for Sinp-Tokamak
A multi channel ECE Radiometer, in the frequency range of 75 - 110 GHz, has been designed, constructed and tested for the SINP-Tokamak to diagnose second harmonic X-mode electron cyclotron emission (ECE). This frequency range covers approximately 80% of the plasma cross section in case of a magnetic eld of B = 1.5 T. For the maximum field of the SINP-Tokamak
Brazilian Journal of Physics. Publicado em: 2002-03
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3. Scientific results from the Cosmic Background Explorer (COBE): (microwave/infrared)
The National Aeronautics and Space Administration (NASA) has flown the COBE satellite to observe the Big Bang and the subsequent formation of galaxies and large-scale structure. Data from the Far-Infrared Absolute Spectrophotometer (FIRAS) show that the spectrum of the cosmic microwave background is that of a black body of temperature T = 2.73 ± 0.06 K, wit
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4. The microwave background anisotropies: Observations
Most cosmologists now believe that we live in an evolving universe that has been expanding and cooling since its origin about 15 billion years ago. Strong evidence for this standard cosmological model comes from studies of the cosmic microwave background radiation (CMBR), the remnant heat from the initial fireball. The CMBR spectrum is blackbody, as pre
National Academy of Sciences.