Abstract
Interest in dwarf spheroidal galaxies is motivated by a number of reasons; an important one on the occasion of this colloquium is the abundance of variable stars. The theory of stellar evolution and stellar pulsations is now able to predict from theoretical considerations characteristic properties of variable stars in the colour-magnitude diagram (Iben, 1971). By observing the variable stars in the field, and in as wide a selection of objects as possible, more insight can be obtained into the history of the oldest members of our Galaxy (the globular clusters) and of the dwarf spheroidal galaxies in the Local Group. It is worthwhile to explore the spheroidal galaxies as observational tests for the theoretical predictions of conditions in space away from our Galaxy. The numbers of variable stars in the dwarf spheroidal galaxies are such that we may expect well-defined relations to emerge once reliable magnitude sequences have been set up, the variable stars found, and their periods determined. Six dwarf spheroidal galaxies are presently known in the Local Group within a distance of 250 kpc. In Table I, which lists members of the Local Group, they are at the low-luminosity end of the sequence of elliptical galaxies (van den Bergh, 1968).
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Agt, S. van and Oosterhoff, P.: 1959, Ann. Sterrew. Leiden 21, 253.
Agt, S. van: 1967, Bull. Astron. Inst. Neth. 19, 275.
Baade, W. and Hubble, E.: 1939, Publ. Astron. Soc. Pacific 51, 40.
Baade, W. and Swope, H.: 1961, Astron. J. 66, 300.
Bergh, S. van den: 1968, J. Roy. Astron. Soc. Can. 62, 1.
Bergh, S. van den: 1972a, Publ. David Dunlap Obs., No. 312.
Bergh, S. van den: 1972b, Astrophys. J. Letters 171, L31.
Demers, S.: 1972, J. Roy. Astron. Soc. Can. 66, 215.
Dessy, J.: 1959, Publ. Astron. Soc. Pacific 71, 435.
Gent, H. van: 1933, Bull. Astron. Inst. Neth. 7, 21.
Hodge, P.: 1961, Astron. J. 66, 384.
Hodge, P.: 1964, Astron. J. 69, 853.
Hodge, P.: 1965, Astrophys. J. 142, 1390.
Hodge, P. and Michie, R.: 1969, Astron. J. 74, 587.
Holmberg, E.: 1969, Arkiv Astron. 5, 305.
Iben, I.: 1971, Astron. J. 83, 697.
Marchant, J. and Millikan, E.: 1965, J. Opt. Soc. Am. 55, 907.
Reaves, G.: 1956, Astron. J. 61, 69.
Sandage, A.: 1954, Astron. J. 59, 162.
Shapley, H.: 1938a, Harvard Bull. No. 908.
Shapley, H.: 1938b, Nature 142, 715.
Swope, H.: 1967, Publ. Astron. Soc. Pacific 79, 439.
Swope, H.: 1968, Astron. J. Suppl. 73, 204.
Thackeray, A.: 1950a, Observatory 70, 144.
Thackeray, A.: 1950b, unpublished.
Tifft, W.: 1963, Monthly Notices Roy. Astron. Soc. 126, 209.
Walker, M.: 1970, Astrophys. J. 161, 835.
Wesselink, A.: 1965, Monthly Notices Roy. Astron. Soc. 130, 443.
Wilson, A.: 1955, Pub. Astron. Soc. Pacific 67, 27.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1973 D. Reidel Publishing Company, Dordrecht, Holland
About this paper
Cite this paper
Van Agt, S. (1973). Variable Stars in Dwarf Spheroidal Galaxies. In: Fernie, J.D. (eds) Variable Stars in Globular Clusters and in Related Systems. Astrophysics and Space Science Library, vol 36. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-2590-4_7
Download citation
DOI: https://doi.org/10.1007/978-94-010-2590-4_7
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-2592-8
Online ISBN: 978-94-010-2590-4
eBook Packages: Springer Book Archive