Publications of the Astronomical Society of the Pacific, Volume 106, Issues 695-702Astronomical Society of the Pacific, 1994 |
From inside the book
Results 1-3 of 84
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 . -1 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 . -1 range of rotational velocities perhaps up to 100 km s1 , as well as a ...
Page 319
... spectrum . N Σ Emji Dmji , i = 1 We remove these variations from our object frames in a two - step process . We first extract a flat - field spectrum for each of the several averaged flat - field frames we have taken over a given night ...
... spectrum . N Σ Emji Dmji , i = 1 We remove these variations from our object frames in a two - step process . We first extract a flat - field spectrum for each of the several averaged flat - field frames we have taken over a given night ...
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 improvement produced by optimal extraction is more pronounced 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 improvement produced by optimal extraction is more pronounced in the lower S / N ...
Other editions - View all
Common terms and phrases
absorption abundance accretion analysis asteroids astrometry 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 pixels 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 subgiant survey Table telescope temperature tion turnoff values variability wavelength white dwarf width X-ray XX Vir