3/31/2024 0 Comments Target white dwarf magazine![]() ![]() SDSS multi-color imaging efficiently distinguishes hot white dwarf and subdwarf stars from the bulk of the stellar and quasar loci in color-color space ( Harris et al. This ancillary target program measured spectra of thousands of white dwarfs that were missed by prior SDSS spectroscopic surveys. However, target selection considerations of the original SDSS meant that white dwarf selection was incomplete. The original SDSS data massively increased the number of known white dwarfs, which had an enormous impact on the science of these stars. White dwarf candidate with a pre-existing SDSS spectrum ![]() White dwarf candidate whose spectrum had not been observed previously by the SDSS Note the caveat regarding observations of these targets on some early BOSS plates Program (bit name) See SDSS bitmasks to learn how to use these values to identify objects in this ancillary target program. Harvard-Smithsonian Center for of white dwarf candidates in the SDSS Data Release 7 imaging area (7,430 deg 2) Finding TargetsĪn object whose ANCILLARY_TARGET1 value includes one or more of the bitmasks in the following table was targeted for spectroscopy as part of this ancillary target program. ![]()
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