Present Problems Concerning the Structure and Evolution of the Galactic System: Lecture Notes (for Private Use Only) of the 1960 NUFFIC International Summer Course in Science, Nijenrode Castle, Breukelen, the Netherlands, July 28-August 16Netherlands Universities Foundation for International Co-Operation, 1960 - 278 pagine |
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Present Problems Concerning the Structure and Evolution of the Galactic ... Visualizzazione estratti - 1960 |
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absolute magnitude angular associations assume Balmer bandwidth Blaauw box orbit Cepheids classification colour components computed consider continuum convective cosmic rays curve density derived determined disk dispersion distance effect emission energy equation equilibrium errors estimate evolution flux frequency galactic centre galactic clusters galactic plane galactic rotation galactic system Galaxy given gradient gravitational H-R diagram halo Hulst hydrogen interstellar clouds interstellar matter ionized km/sec lecture limit luminosity magnetic field main sequence Mc/s measured nebula non-thermal number of stars observed obtained Oort optical orbit parameters parsecs particles population possible pressure problem proper motions radial velocity radio ratio region relativistic electrons RR Lyrae run-away stars shows solar spectral classification spectral type spectrum spiral arms spiral structure stellar stellar evolution Table temperature thermal tion turbulence type stars variables velocity distribution virial theorem wavelength