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Title:
A white-dwarf search at the south galactic pole
Authors:
Eggen, O. J.; Bessell, M. S.
Affiliation:
AA(Mt. Stromlo and Siding Spring Observatory, Canberra, Australia), AB(Mt. Stromlo and Siding Spring Observatory, Canberra, Australia)
Publication:
Astrophysical Journal, Part 1, vol. 226, Dec. 1, 1978, p. 411-419. (ApJ Homepage)
Publication Date:
12/1978
Category:
Astronomy
Origin:
STI
NASA/STI Keywords:
ASTRONOMICAL PHOTOMETRY, SOUTHERN HEMISPHERE, WHITE DWARF STARS, ASTRONOMICAL CATALOGS, COLOR, HALOS
Comment:
A&AA ID. AAA022.126.029
DOI:
10.1086/156621
Bibliographic Code:
1978ApJ...226..411E

Abstract

The Lowell Observatory G and GD stars to visual magnitude 17 and within 10 deg of the south galactic pole have been observed in a modified Stromgren photometric system. Twenty-three white dwarfs were found, including five already known, leading to a number density for these blue degenerates of 1 per 0.001 cu pc. Forty-two of the stars are probably halo objects of spectral types F and G, and the remaining 23 stars include blue stragglers, horizontal-branch stars, and one possible ultrashort-period halo variable.

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