The PGR Catalog of Objects Rejected from the PG Survey (``PG Rejects'')

Details The PGR Catalog of Objects Rejected from the PG Survey (``PG Rejects'') The PGR Catalog of Objects Rejected from the PG Survey (``PG Rejects'')

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.6902w&link_type=abstract

American Astronomical Society Meeting 207, #69.02; Bulletin of the American Astronomical Society, Vol. 37, p.1270

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Scientific paper

The Palomar-Green (PG) survey for ultraviolet-excess objects generated many candidate UV-excess objects that ultimately were not included in the final PG catalog (Green, Schmidt & Liebert 1986). These candidates were chosen based on their preliminary photographic U-B color, but low-resolution classification spectra showed zero-redshift K-line or G-band absorption or other indicators that the objects were ``cool'', so they were ultimately rejected. Nevertheless, among these ``PG Rejects'' are interesting individual objects, including a DAZB white dwarf, some composite spectrum binaries, and numerous metal-poor sdF/sdG subdwarfs. While the PG Rejects do not comprise a statistically complete sample, it is estimated that several percent, i.e., dozens, of the 1125 PGR objects will be of individual interest as examples of rare classes of stars. Most of the objects have not been studied before.
We introduce the forthcoming master catalog of ``PGR'' objects, which will make this finding list available to a wider audience. We discuss some of the interesting objects found so far in the catalog, and present aggregate data to summarize some properties of the PGR stars.
Supported in part by NASA grants.

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