Publications of the Astronomical Society of the Pacific, Volume 106, Issues 695-702Astronomical Society of the Pacific, 1994 |
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Page 257
... frame in which it appears . In a typical near - critically sampled reduction problem , each star in each digital image may be repre- sented by of order 12 pixels ' worth of statistically impor- tant brightness data ( radius of the ...
... frame in which it appears . In a typical near - critically sampled reduction problem , each star in each digital image may be repre- sented by of order 12 pixels ' worth of statistically impor- tant brightness data ( radius of the ...
Page 317
... frame and ( 2 ) removal of any exposure - time - dependent dark - current effects present on the frame . The first of these is achieved by subtracting the count level in the overscan strip ( obtained by reading an extra set of columns ...
... frame and ( 2 ) removal of any exposure - time - dependent dark - current effects present on the frame . The first of these is achieved by subtracting the count level in the overscan strip ( obtained by reading an extra set of columns ...
Page 405
... Frame Center Date Telescope Exposures CCD Airmass FWHM ( arcsec ) 1.5 ' East 18 August 1987 0.9 - m TI # 1 1.26 2.4 ... frame . In the case of the TEK CCD images , the shape of the PSF was made to vary quadratically across the frames ...
... Frame Center Date Telescope Exposures CCD Airmass FWHM ( arcsec ) 1.5 ' East 18 August 1987 0.9 - m TI # 1 1.26 2.4 ... frame . In the case of the TEK CCD images , the shape of the PSF was made to vary quadratically across the frames ...
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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