Abstract
Photometric parallaxes have been used to determine the luminosity function (LF) for a large sample of spectroscopically identified white dwarfs (WDs) found in the Luyten and Giclas common proper motion binaries (CPMBs). The LF derived for WD components of CPMBs has been corrected for incompleteness to µ ≥ 0.2″/y and mpg ≤ + 18. Comparison with the LF derived for single field WDs suggests that WDs are more commonly found in binaries.
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This research was supported by observations made at Kitt Peak National Observatory & Cerro Tololo Inter-American Observatory (operated by the Association of Universities for Research in Astronomy for the National Science Foundation); at Lowell Observatory; and at McDonald Observatory (operated by the University of Texas at Austin).
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Oswalt, T.D., Smith, J.A. (1995). On the luminosity function of white dwarfs in wide binaries. In: Koester, D., Werner, K. (eds) White Dwarfs. Lecture Notes in Physics, vol 443. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-59157-5_168
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DOI: https://doi.org/10.1007/3-540-59157-5_168
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