Galactic StructureAdriaan Blaauw, Maarten Schmidt University of Chicago Press, 1965 - 606 pagine |
Dall'interno del libro
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Pagina 375
... white dwarfs without prior selection for large proper motion . We will see in Table 5 that 21 white dwarfs were confirmed by spectra from among the blue stars . Their proper motions were then found to be small . The HR diagram of white ...
... white dwarfs without prior selection for large proper motion . We will see in Table 5 that 21 white dwarfs were confirmed by spectra from among the blue stars . Their proper motions were then found to be small . The HR diagram of white ...
Pagina 378
... white dwarfs as compared with 13 pairs of faint red dwarfs . He finds statistical evidence for a small , real orbital motion which is larger for the white - dwarf pairs . If the mean mass of the red dwarfs is about 0.4 MO , the mean ...
... white dwarfs as compared with 13 pairs of faint red dwarfs . He finds statistical evidence for a small , real orbital motion which is larger for the white - dwarf pairs . If the mean mass of the red dwarfs is about 0.4 MO , the mean ...
Pagina 379
... white - dwarf sequence . The number of cool white dwarfs , however , is very uncertain and especially those with BV > 06 are poorly known . The theory of the HR diagram for white dwarfs ( where the surface flux is maintained at the ...
... white - dwarf sequence . The number of cool white dwarfs , however , is very uncertain and especially those with BV > 06 are poorly known . The theory of the HR diagram for white dwarfs ( where the surface flux is maintained at the ...
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 |
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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