Hostname: page-component-848d4c4894-v5vhk Total loading time: 0 Render date: 2024-07-03T10:03:47.445Z Has data issue: false hasContentIssue false
  • English
  • Français

5. The Identification of White Dwarf Suspects in the Lowell Proper Motion Program

Published online by Cambridge University Press:  14 August 2015

H. L. Giclas
H. L. Giclas*
Affiliation:
Lowell Observatory, Flagstaff, Ariz., U.S.A.

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

During the course of the Lowell proper motion survey that has been in progress since 1957, an effort has been made to identify the very blue stars and more recently the extremely red ones. The proper motions are detected and measured directly by projection on the calibrated grid of the blink microscope. The regular program catalogs all motions found >0″.26/year and fainter than the eighth magnitude. From this portion of the program, we have identified 179 white dwarf suspects, 48 of color class– 1 and 131 of color class 0, which have been published in the Lowell Bulletins under the title of ‘Lowell Proper Motions II through XV’. These lists cover the entire northern hemisphere, and a few regions down as far as −;10° South, and contain 10382 different individual stars. Finding charts are provided for each object.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 42: White Dwarfs , 1971 , pp. 24 - 31
Copyright
Copyright © Reidel 1971 

References

[1] Giclas, H. L., Burnham, R. Jr., and Thomas, N. G.: 1957—1970, ‘Lowell Proper Motions’ I through XV; Lowell Observatory Bulletin, Nos. 89, 102, 112, 120, 122, 124, 129, 132, 136, 138, 140, 144, 150, 151 and 152.Google Scholar
[2] Giclas, H. L., Burnham, R. Jr., and Thomas, N. G.: ‘A List of White Dwarf Suspects’, I, II and III; Lowell Observatory Bulletin. Nos. 125, 1965; 141, 1967 and 151, 1970.Google Scholar
[3] Eggen, O. J. and Greenstein, J. L.: 1965a, Astrophys. J. 141, 83.CrossRefGoogle Scholar
[4] Eggen, O. J. and Greenstein, J. L.: 1965b, Astrophys. J. 142, 925.CrossRefGoogle Scholar
[5] Eggen, O. J. and Greenstein, J. L.: 1967, Astrophys. J. 150, 927.CrossRefGoogle Scholar
[6] Greenstein, J. L.: 1969, Astrophys. J. 158, 281.CrossRefGoogle Scholar
[7] Annual Report of the Director 1964—1965, Mt. Wilson and Palomar Observatories.Google Scholar
[8] Annual Report of the Director 1965-1966, Mt. Wilson and Palomar Observatories.Google Scholar
[9] Giclas, H. L.: 1969, Low Luminosity Stars, Kumar, p. 28.Google Scholar
[10] Eggen, O. J.: 1968, Astrophys. J., Suppl. Series 16, 97, No. 143.CrossRefGoogle Scholar