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Star Counts

Published online by Cambridge University Press:  12 April 2016

Richard G. Kron
Richard G. Kron*
Affiliation:
Yerkes Observatory, The University of Chicago, Williams Bay, Wisconsin 53191 USA

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The number of stars counted along a particular line of sight depends on the spatial distribution of stars, the luminosity function, and the absorption. Thus star count programs are designed to constrain or determine one or more of these functions. Early efforts to understand the structure of our Galaxy, including the fundamentals of stellar statistics, were largely based on work that involved star counts. Since then a growing appreciation has developed for the variety of forms the density function D(r) and the luminosity function Φ(M) can take, especially the recognition of different stellar populations, each with different density and luminosity functions. In the simplest formulation two distinct populations are considered: disk and halo. This suggests two distinct formation histories, but uncertainty in the picture remains (Eggen, Lynden-Bell and Sandage 1962; Ostriker and Thuan 1975; Saio and Yoshii 1979; Jones and Wyse 1983).

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 78: Astronomy with Schmidt-type telescopes , 1984 , pp. 315 - 324
Copyright
Copyright © Reidel 1984

References

Bahcall, J.N. and Soneira, R.: 1980, Astrophys. J. Suppl. 44, pp. 73–110.Google Scholar
Bahcall, J.N. and Soneira, R.M.: 1983, preprint.Google Scholar
Bahcall, J.N., Soneira, R.M., Morton, D.C., and Tritton, K.P.: 1983, Astrophys. J. 272, pp. 627–634.Google Scholar
Barbieri, C. and Rosino, L.: 1972, Astrophys. Space Sci. 16, pp. 324–335.Google Scholar
Becker, W.: 1965, Zeit, für Astrophysik 62, pp. 54–78.Google Scholar
Becker, W.: 1979, Astron. Astrophys. Suppl. 38, pp. 341–353.Google Scholar
Berger, J. and Fringant, A.-M.: 1977, Astron. Astrophys. Suppl. 28, pp. 123–152.Google Scholar
Eggen, O.J., Lynden-Bell, D. and Sandage, A.: 1962, Astrophys. J. 136, pp. 748–766.Google Scholar
Feige, J.: 1958, Astrophys. J. 128, pp. 267–272.CrossRefGoogle Scholar
Fenkart, R.P.: 1967, Zeit, für Astrophysik 66, pp. 390–403.Google Scholar
Gilmore, G. and Reid, N.: 1983, Mon. Not. Roy. Astron. Soc. 202, pp. 1025–1047.CrossRefGoogle Scholar
Godwin, J.G. and Peach, J.v.: 1982, Mon. Not. Roy. Astron. Soc. 200, pp. 733–746.Google Scholar
Green, R.F.: 1980, Astrophys. J. 238, pp. 685–698.CrossRefGoogle Scholar
Haro, G. and Luyten, W.J.: 1961, Bol. Obs. Tonantzintla y Tacubaya No. 21, p. 35.Google Scholar
Haro, G. and Luyten, W.J.: 1962, Bol. Obs. Tonantzintla y Tacubaya No. 22, pp. 37-117.Google Scholar
Herbst, W. and Sawyer, D.L.: 1981, Astrophys. J. 243, pp. 935–944.Google Scholar
Humason, M.L. and Zwicky, F.: 1947, Astrophys. J. 105, pp. 85–91.Google Scholar
Hubble, E.P.: 1936, “The Realm of the Nebulae”, Yale University, New Haven, p. 192.Google Scholar
Iriarte, B. and Chavira, E.: 1957, Bol. Obs. Tonantzintla y Tacubaya No. 16, pp. 3–36.Google Scholar
Jaidee, S. and Lynga, G.: 1969, Arkiv för Astronomi 5, pp. 345–379.Google Scholar
Jones, B.F. and Klemola, A.R.: 1977, Astron. J. 82, pp. 593–597.Google Scholar
Jones, B.J.T. and Wyse, R.F.G.: 1983, Astron. Astrophys. 120, pp. 165–180.Google Scholar
Kinman, T.D.: 1965, Astrophys. J. 142, pp. 1241–1248.Google Scholar
Liebert, J., Dahn, C.C., Gresham, M. and Strittmatter, P.A.: 1979, Astrophys. J. 233, pp. 226–238.Google Scholar
Luyten, W.J.: 1955–1962, “A Search for Faint Blue Stars” 1–30, University of Minnesota, Minneapolis.Google Scholar
Luyten, W.J.: 1960, “A Search for …” 22.Google Scholar
Luyten, W.J.: 1963-present, “Proper Motion Survey with the 48-Inch Schmidt Telescope”, University of Minnesota, Minneapolis.Google Scholar
Luyten, W.J. (ed.): 1965, “First Conference on Faint Blue stars”, Strasbourg, August 1964, University of Minnesota, Minneapolis.Google Scholar
Luyten, W.J.: 1976, “Proper Motion Survey with the …” 46.Google Scholar
Luyten, W.J.: 1977, “Proper Motion Survey with the …” 51.Google Scholar
Luyten, W.J. and Anderson, J.H.: 1962, “A Search for Faint Blue Stars” 30.Google Scholar
McCusky, S.W.: 1965, in “Galactic Structure”, eds. Blaauw, A. and Schmidt, M., University of Chicago, pp. 1–26.Google Scholar
Morales-Duràn, C.: 1982, Astron. Astrophys. Suppl. 48, pp. 139–152.Google Scholar
Noguchi, T., Maehara, H. and Rondo, M.: 1980, Annals Tokyo Astron. Obs. 43 No. 1, pp. 55–70.Google Scholar
Noguchi, T., Yutani, M. and Maehara, H.: 1982, Pub. Astron. Soc. Japan 34, pp. 407–415.Google Scholar
Ostriker, J.P. and Thuan, T.X.: 1975, Astrophys.-J. 202, pp. 353–364.CrossRefGoogle Scholar
Poulakos, C: 1978, Astron. Astrophys. Suppl. 33, pp. 395–399.Google Scholar
Reid, I.N. and Gilmore, G.: 1981, Mon. Not. Roy. Astron. Soc. 196, pp. 15P-18P.CrossRefGoogle Scholar
Reid, N. and Gilmore, G.: 1982, Mon. Not. Roy. Astron. Soc. 201, pp. 73–94.CrossRefGoogle Scholar
Richter, L., Richter, N. and Schnell, A.: 1968, Mitt. Karl-Schwarzschild-Obs. Tautenburg, No. 38, pp. 3–24.Google Scholar
Rubin, V.C., Moore, S. and Bertiau, E.C.: 1967, Astron. J. 72, pp. 59–64.Google Scholar
Saio, H. and Yoshii, Y.: 1979, Pub. Astron. Soc. Pacific 91, pp. 553–570.CrossRefGoogle Scholar
Sandage, A. and Luyten, W.J.: 1967, Astrophys. J. 148, pp. 767–779.CrossRefGoogle Scholar
Sanduleak, N.: 1976, Astron. J. 81, pp. 350–363.Google Scholar
Sanduleak, N. and Pesch, P.: 1982, Pub. Astron. Soc. Pacific 94, pp. 690–691.CrossRefGoogle Scholar
Schiibach, E.: 1982, Astron. Nachrichten 303, pp. 335–340.Google Scholar
Shanks, T., Phillipps, S. and Fong, R.: 1980, Mon. Not. Roy. Astron. Soc. 191, pp. 47P-52P.Google Scholar
Sion, E.M. and Liebert, J.: 1977, Astrophys. J. 213, pp. 468–478.Google Scholar
Steppe, H.: 1978, Astron. Astrophys. Suppl. 31, pp. 209–241.Google Scholar
Strümgren, B.: 1976, The ESO Messenger, No. 7, pp. 12–13.Google Scholar
Thè, P.S. and Staller, R.F.A.: 1974, Astron. Astrophys. 36, pp. 155–161.Google Scholar
Upgren, A.R.: 1962, Astron. J. 67, pp. 37–78.Google Scholar
Upgren, A.R.: 1963, Astron. J. 68, pp. 194–206.Google Scholar
van Rhijn, P.J.: 1965, in “Galactic Structure”, eds. Blaauw, A. and Schmidt, M., University of Chicago, pp. 27–39.Google Scholar
Weinberger, R. and Poulakos, C.: 1977, Astron. Astrophys. Suppl, 27, pp.249–253.Google Scholar
Weistrop, D.: 1972, Astron. J. 77, pp. 366–373.Google Scholar
Yoshii, Y.: 1982, Pub. Astron. Soc. Japan 34, pp. 365–379.Google Scholar
Zwicky, F.: 1965, remark in “First Conference on Faint Blue Stars”, p. 17.Google Scholar