Publications of the Astronomical Society of the Pacific, Volume 106, Issues 695-702Astronomical Society of the Pacific, 1994 |
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Page 195
... spectrum of the 0.63 - day binary RT And ; below : the result of cross correlating the spectrum of this order of RT And against a spectrum of HR 6970 as template . range of rotational velocities perhaps up to 100 km s1 , as well as a ...
... spectrum of the 0.63 - day binary RT And ; below : the result of cross correlating the spectrum of this order of RT And against a spectrum of HR 6970 as template . range of rotational velocities perhaps up to 100 km s1 , as well as a ...
Page 319
... spectrum : Three steps are nec- essary to prepare a flat - field spectrum for use . First , the user must define the " aperture width " to be used for each order . This can be done interactively or with reference widths , determined ...
... spectrum : Three steps are nec- essary to prepare a flat - field spectrum for use . First , the user must define the " aperture width " to be used for each order . This can be done interactively or with reference widths , determined ...
Page 324
... spectrum of the short - period binary UV Leonis . We show the UV Leo spectrum here as its S / N is lower than that of the HD 35296 spectrum , and the im- provement produced by optimal extraction is more pro- nounced in the lower S / N ...
... spectrum of the short - period binary UV Leonis . We show the UV Leo spectrum here as its S / N is lower than that of the HD 35296 spectrum , and the im- provement produced by optimal extraction is more pro- nounced in the lower S / N ...
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absorption abundance accretion analysis asteroids Astronomical Society binary bright calibration catalog central star chromospheric clouds color comets correction derived detection detector diagram disk distribution eclipse emission errors estimate evolution expansion velocities Fe/H field flux frame function galactic galaxies GCLF giant branch globular clusters H II regions Hyades indices infrared ionized km s¹ light curve lines luminosity magnitude main sequence main-sequence mass measured MNRAS objects observations Observatory obtained open clusters optical orbital parameters PASP period phase photometric pixel planetary nebulae plotted quasars radial velocities radius range ratio red giants reddening redshift region residuals rotation sample scale scatter secondary solar sources spectral type spectroscopic spectrum standard stellar stellar winds subgiant survey Table telescope temperature tion turnoff values variability wavelength white dwarf width X-ray XX Vir