Galactic StructureAdriaan Blaauw, Maarten Schmidt University of Chicago Press, 1965 - 606 pagine |
Dall'interno del libro
Risultati 1-3 di 37
Pagina 100
... Hyades about four per cent closer than the GC proper motions . We may expect the N30 system to be superior of the two , but we may suppose that further meridian work may produce fresh modifications of one or two per cent in the proper ...
... Hyades about four per cent closer than the GC proper motions . We may expect the N30 system to be superior of the two , but we may suppose that further meridian work may produce fresh modifications of one or two per cent in the proper ...
Pagina 113
... Hyades and Ursa Ma- jor moving clusters met with better success . The extensive literature of these " streams " has been summarized by Roman ( 1949 : UMa ) and by Wilson and Raymond ( 1932 : Hyades ) . There has been a tendency in many ...
... Hyades and Ursa Ma- jor moving clusters met with better success . The extensive literature of these " streams " has been summarized by Roman ( 1949 : UMa ) and by Wilson and Raymond ( 1932 : Hyades ) . There has been a tendency in many ...
Pagina 120
... Hyades cluster main sequence populate one ( " Hyades - Pleiades " ) mass - luminosity relation , whereas those showing an excess populate another ( " Sun - Sirius " ) relation and the differences between the two relations can be ...
... Hyades cluster main sequence populate one ( " Hyades - Pleiades " ) mass - luminosity relation , whereas those showing an excess populate another ( " Sun - Sirius " ) relation and the differences between the two relations can be ...
Sommario
DISTRIBUTION OF COMMON STARS IN THE GALACTIC PLANE | 1 |
DISTRIBUTION OF COMMON STARS IN INTERMEDIATE AND HIGH GALACTIC | 41 |
Luminosity Function for a Given Spectral Class | 56 |
Copyright | |
50 sezioni non visualizzate
Altre edizioni - Visualizza tutto
Parole e frasi comuni
absolute magnitudes apparent magnitude appears Astr Blaauw bright cepheids circular velocity clouds colors components concentration curve density distribution derived determined diagram direction discussed disk distance Eggen Elvius emission equation faint galactic center galactic clusters galactic latitude galactic plane Galaxy giants given globular clusters H II regions halo high-velocity stars Hyades Ibid indicate interstellar absorption investigations ionized kinematic km/sec late-type line of sight luminosity function magnetic field main sequence mass mean method Milky non-thermal number of stars objects observed obtained Oort optical orbits parallaxes Parenago parsecs planetary nebulae population proper motions radial velocities Rhijn RR Lyrae Sandage solar motion solar neighborhood space density space distribution space motions spectral class spectral type spectroscopic spiral arms spiral structure stellar subdwarfs supergiants surveys Table tion values variables velocity dispersion velocity distribution Vyssotsky wavelengths Westerhout white dwarfs