Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-25T18:37:45.398Z Has data issue: false hasContentIssue false

M Dwarfs at Lower z Distances

Published online by Cambridge University Press:  30 March 2016

W. Gliese*
Affiliation:
Astronomisches Rechen-Institut, Heidelberg, F.R.G.

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.

Twelve years ago, during the International Summer Course at Lagonissi, Bart Bok (1966) presented a paper “Desiderata for Future Galactic Research”. He pointed to the importance of studies in the galactic polar caps which would allow us, as he hoped, to determine some basic data for galactic structure.

The significance of his statements was demonstrated already in the following years when the gradual increase of our knowledge of the objects in the solar neighbourhood was suddenly interrupted by new observational data from which diverging conclusions have been drawn. Never before have such controversial opinions on problems in the vicinity of the sun been so eagerly discussed: A formerly unknown numerous population of low-velocity red dwarfs, the mass density resulting from stars three times that formerly thought, a remarkably increased luminosity function - yes or no? Obviously, the controversies have smoothed down again during the last months. But what is the situation after this troubled period? Which problems are still unsolved? Which promising programmes will be proposed? I think this Joint Discussion is justified in 1976!

Type
Joint Discussions
Copyright
Copyright © Reidel 1977

References

Biermann, P.: 1974, Astron. Astrophys. 30, 31.Google Scholar
Biermann, P. and Tinsley, B. M.: 1974, Astron. Astrophys. 30, 1.Google Scholar
Bok, B. J.: 1965, in A., Blaauw and L.N., Mavridis (eds.), Observational Aspects of Galactic Structure, Int. Summer Course (Lagonissi 1964), Athens, Paper XXIX.Google Scholar
Dolan, J. F.: 1975, Astron. Astrophys. 39, 463.Google Scholar
Eggen, O. J.: 1976a, Astrophys. J. Suppl. 30, 351.Google Scholar
Eggen, O. J.: 1976b, Astrophys. J. 204, 101.Google Scholar
Faber, S. M., Burstein, D., Tinsley, B. M. and King, I. R.: 1976, Astron. J. 81, 45.Google Scholar
Giclas, H. L., Burnham, R. Jr. and Thomas, N. G.: 1972, Lowell Obs. Bull. (No. 158) 7, 217.Google Scholar
Giclas, H. L., Burnham, R. Jr. and Thomas, N. G.: 1973, Lowell Obs. Bull. (No. 160) 7, 273.Google Scholar
Giclas, H. L., Burnham, R. Jr. and Thomas, N. G.: 1975, Lowell Obs. Bull. (No. 162) 8, 9.Google Scholar
Gliese, W.: 1972, Astron. Astrophys. 21, 431.Google Scholar
Gliese, W.: 1974, Astron. Astrophys. 34, 147.Google Scholar
Gliese, W.: 1976, in Kharadze, E. K. (ed.). Stars and Galaxies from Observational Points of View, Proc. of the 3rd European Astron. Meeting (Tbilisi 1975), Abastumani Astrophys. Obs., p. 463.Google Scholar
Jôeveer, M.: 1974, Tartu Astrofiz. Obs., Teated 46, 3.Google Scholar
Jôeveer, M.: 1975, Publ. Tartu Astrofiz. Obs. 43, 89.Google Scholar
Jones, D. H. P.: 1973, Monthly Notices Roy. Astron. Soc. 161, 19P.Google Scholar
Koo, D. C. and Kron, R. G.: 1975, Publ. Astron. Soc. Pacific 87, 885.CrossRefGoogle Scholar
Luyten, W. J.: 1960, A Search for Faint Blue Stars, No. 22. Obs. Univ. Minnesota, Minneapolis, Minn.Google Scholar
Luyten, W. J.: 1968, Monthly Notices Roy. Astron. Soc. 139, 221.CrossRefGoogle Scholar
Luyten, W. J.: 1974, The Observatory 94, 136.Google Scholar
Luyten, W. J.: 1976a The North Galactic Pole, Univ. Minnesota, Minneapolis, Minn.Google Scholar
Luyten, W. J.: 1976b, Proper Motion Survey with the 48-Inch Schmidt Telescope, No. 46. Univ. Minnesota, Minneapolis, Minn.Google Scholar
Luyten, W. J. and La Bonte, A. E.: 1973, The South Galactic Pole, Univ. Minnesota, Minneapolis, Minn.Google Scholar
McCarthy, M. F., Bertiau, F. C. and Treanor, P. J.: 1964, Ric. Astron. Specola Astron. Vaticana 6, 571.Google Scholar
Murray, C. A. and Sanduleak, N.: 1972, Monthly Notices Roy. Astron. Soc. 157, 273.CrossRefGoogle Scholar
Oort, J. H.: 1965, Stars and Stellar Systems 5, 455.Google Scholar
Pesch, P.: 1972, Astrophys. J. 177, 519.CrossRefGoogle Scholar
Pesch, P. and Sanduleak, N.: 1970, in S.W., McCuskey, Warner and Swasey Observatory Report 1968–1969, Bull. AAS 2, 151.Google Scholar
Sanduleak, N.: 1964, in S.W., McCuskey, Warner and Swasey Observatory Report 1963–1964, Astron. J. 69, 720.Google Scholar
Sanduleak, N.: 1976, ‘A Catalogue of Probable Dwarf Stars of Type M3 and Later in the Direction of the North Galactic Pole’, Astron. J. 81, 350.Google Scholar
Schmidt, M.: 1975, in Hayli, A. (ed.), Dynamics of Stellar Systems, IAU Symp. 69 (Besançon 1974), p. 325.Google Scholar
Thé, P. S. and Staller, R. F. A.: 1974, Astron. Astrophys. 36, 155.Google Scholar
Veeder, G. J.: 1974, Astrophys. J. 191, L57.CrossRefGoogle Scholar
Weistrop, D.: 1972a, Astron. J. 77, 366.Google Scholar
Weistrop, D.: 1972b, Astron. J. 77, 849.CrossRefGoogle Scholar
Weistrop, D.: 1974, Astron. J. 79, 954.Google Scholar
Weistrop, D.: 1975, Bull. AAS 7, 411.Google Scholar
Weistrop, D.: 1976a, Astrophys. J. 204, 313.CrossRefGoogle Scholar
Weistrop, D.: 1976b, Astron. J. 81, 427.CrossRefGoogle Scholar
Weistrop, D.: 1976c, ‘Further Comments on the Evidence for a High Density of red Dwarf Stars’ (preprint).Google Scholar