Publications of the Astronomical Society of the Pacific, Volume 106, Issues 695-702Astronomical Society of the Pacific, 1994 |
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Page 342
... main sequence . Thus , pre - main - sequence stars are relatively rare . Nevertheless , there is no question that this phase has been observed . Pre - main - sequence objects of relatively low mass ( M2M ) are known as T Tauri stars ...
... main sequence . Thus , pre - main - sequence stars are relatively rare . Nevertheless , there is no question that this phase has been observed . Pre - main - sequence objects of relatively low mass ( M2M ) are known as T Tauri stars ...
Page 493
... Main Sequence The cmd based on the photometry in Table 3 is presented in Fig . 5 ( a ) for V vs. ( b - y ) and in Fig . 5 ( b ) for V vs. Ηβ . One of the features most readily noted in the cmd is the main - sequence width , which ...
... Main Sequence The cmd based on the photometry in Table 3 is presented in Fig . 5 ( a ) for V vs. ( b - y ) and in Fig . 5 ( b ) for V vs. Ηβ . One of the features most readily noted in the cmd is the main - sequence width , which ...
Page 498
... main sequence . If the rotation can trigger mixing on the main sequence , the extended lifetime of the stars could produce a rich population of yellow stragglers which exhibit CN enhancements when CNO processed materials are mixed to ...
... main sequence . If the rotation can trigger mixing on the main sequence , the extended lifetime of the stars could produce a rich population of yellow stragglers which exhibit CN enhancements when CNO processed materials are mixed to ...
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absorption abundance accretion analysis arcsec asteroids Astronomical Society binary bright calibration catalog central star chromospheric clouds cluster color comets correction derived detection detector diagram disk Dordrecht eclipse emission errors estimate evolution expansion velocities Fe/H field flux frame function galactic galaxies GCLF giant branch globular globular clusters H II regions Hyades indices infrared ionized km s¯¹ lines luminosity m₁ magnitude main sequence main-sequence mass measured MNRAS objects Observatory observed obtained open clusters optical orbital parameters PASP period phase photometric pixels planetary nebulae plotted quasars radial velocities radius range ratio red giants reddening redshift region residuals rotation sample scatter secondary solar sources spectral type spectroscopic spectrum standard stellar subgiant survey Table telescope temperature tion turnoff values variability wavelength white dwarf width X-ray XX Vir