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Observational Properties of Compact Groups of Galaxies

Published online by Cambridge University Press:  12 April 2016

Paul Hickson
Paul Hickson*
Affiliation:
Department of Geophysics and Astronomy, University of British Columbia

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Compact groups are small, relatively isolated, systems of galaxies with projected separations comparable to the diameters of the galaxies themselves. Two well-known examples are Stephan’s Quintet (Stephan, 1877) and Seyfert’s Sextet (Seyfert 1948a,b). In groups such as these, the apparent space density of galaxies approaches 106 Mpc-3, denser even than the cores of rich clusters. The apparent unlikeliness of the chance occurance of such tight groupings lead Ambartsumyan (1958, 1975) to conclude that compact groups must be physically dense systems. This view is supported by clear signs of galaxy interactions that are seen in many groups. Spectroscopic observations reveal that typical relative velocities of galaxies in the groups are comparable to their internal stellar velocities. This should be conducive to strong gravitational interactions – more so than in rich clusters, where galaxy velocities are typically much higher. This suggests that compact groups could be excellent “laboratories” in which to study galaxy interactions and their effects.

Type
II. Classical Observations of Multiplets
Information
International Astronomical Union Colloquium , Volume 124: Paired and Interacting Galaxies , 1990 , pp. 77 - 91
Copyright
Copyright © NASA 1990

References

Ambartsumyan, V. A. 1958, Izv. Acad. Nauk. Arm. SSR, Fiz.-Mat., 11, 9.Google Scholar
Ambartsumyan, V. A. 1975, Astrofiz., 10, 471.Google Scholar
Amirkhanyan, A. S., and Egikyan, A.G. 1987, Astrofiz. 27.Google Scholar
Arkhipova, V. P. 1982 Astron. Zh., 59, 202.Google Scholar
Arkhipova, V. P., Zasov, A. V., Noskova, R. I., and Sil’chenko, O. K. 1987 Astron. Zh., 64, 1161.Google Scholar
Arp, H. C. 1966, Ap. J. Suppl., 14, 1.CrossRefGoogle Scholar
Arp, H. C. 1973, Ap. J., 183, 411.Google Scholar
Arp, H. C., and Lorre, J. J. 1976, Ap. J., 210, 58.Google Scholar
Arp, H. C., Burbidge, G. R., and Jones, T. W. 1973, P. A. S. P., 85, 423.Google Scholar
Bahcall, N. A., Harris, D. E., and Rood, H. J. 1984, Ap. J. (Letters), 284, L29.Google Scholar
Baier, F. W., Petrosyan, M. B., Tiersch, H., and Shakhbazyan, R. K. 1974, Astrofiz., 10, 327.Google Scholar
Baier, F. W., Tiersch, H. 1975, Astrofiz., 11, 221.Google Scholar
Baier, F. W., Tiersch, H. 1976a, Astrofiz., 12, 7.Google Scholar
Baier, F. W., Tiersch, H. 1976b, Astrofiz., 12, 409.Google Scholar
Baier, F. W., Tiersch, H. 1978, Astrofiz., 14, 279.Google Scholar
Baier, F. W., Tiersch, H. 1979, Astrofiz., 15, 33.Google Scholar
Barbieri, C., Casini, C., Jeidmann, J., di Serego, S., and Zambon, M. 1979, Astr. Ap. Suppl., 37, 559.Google Scholar
Barnes, J. 1985, M. N. R. A. S., 215, 517.CrossRefGoogle Scholar
Barnes, J. 1989, Nature, 338, 123.Google Scholar
Barnes, J. 1990, to appear in Dynamics and Interactions of Galaxies, ed. Wielen, R. (Heidelberg: Springer-Verlag).Google Scholar
Beekman, G. W. 1974, Zenit, 1, 24.Google Scholar
Bingelli, B., Sandage, A., and Tamman, G. A. 1988, Ann. Rev. Astr. Ap., 26, 509.CrossRefGoogle Scholar
Börngen, F., and Kalloglyan, A. T. 1974, Astrofiz., 10, 21.Google Scholar
Burbidge, E. M. and Burbidge, G. R. 1961, Ap. J., 134, 244.Google Scholar
Burbidge, E. M. and Sargent, W. L. W. 1971, Ap. J., in Nuclei of Galaxies, ed. O’Connell, D. J. K. (Amsterdam: North-Holland).Google Scholar
Hammar, F. and Nottale, L. 1986, Astr. Ap., 155, 420.Google Scholar
Heiligman, G. M., and Turner, E.I. 1980, Ap. J., 236, 745.Google Scholar
Hickson, P. 1982, Ap. J., 255, 382.CrossRefGoogle Scholar
Hickson, P., and Huchra, J. P. 1990, in preparation.Google Scholar
Hickson, P., Kindl, E., Auman, J. R. 1989, Ap. J. Suppl., 70, 687.CrossRefGoogle Scholar
Hickson, P., Menon, T. K., Palumbo, G. G. C., and Persic, M. 1988, Ap. J., 341, 679.CrossRefGoogle Scholar
Hickson, P., Ninkov, Z., Huchra, J., and Mamon, G. 1984, in Clusters and Groups of Galaxies, ed Mardirossian, F., Giuricin, G., and Mezzetti, M. (Dordrecht: Reidel), p. 367.Google Scholar
Hickson, P., Richstone, D.O., and Turner, E. L. 1977, Ap. J., 213, 323.Google Scholar
Hickson, P., Kindl, E., and Auman, J. R. 1989, Ap. J. Suppl., 70, 687.Google Scholar
Hickson, P., Kindl, E., and Huchra, J. P. 1988a, Ap. J. (Letters), 329, L65.Google Scholar
Hickson, P., Kindl, E., and Huchra, J. P. 1988b, Ap. J., 331, 64.Google Scholar
Hickson, P., and Rood, H. J. 1988, Ap. J., 331, L69.Google Scholar
Kindl, E. 1990, Ph. D. Thesis, University of British Columbia.Google Scholar
Kirshner, R. P., and Malumuth, E. M. 1980, Ap. J., 236, 366.Google Scholar
Klimek, 1974, Urania Kraków, 45, 34.Google Scholar
Iye, Kodaira, Okamura, , and Stockton, 1988, Pub. Astr. Soc. Japan, 40, 533.Google Scholar
Massey, P. 1977, P. A. S. P., 89, 13.Google Scholar
Malykh, S. A., and Orlov, V. V. 1986. Astrofiz.. 24, 445.Google Scholar
Mamon, G. A. 1987, Ap. J., 321, 622.Google Scholar
Menon, T. K., and Hickson, P. 1985, Ap. J., 296, 60.Google Scholar
Mirzoyan, L. V., Miller, J. S., and Osterbrock, D. E. 1975, Ap. J., 196, 687.Google Scholar
Palumbo, G. G. C., Tornatore, V., Baiesi-Pillastrini, G., Hickson, P., and Mendes de Oliveira, C. 1990, in preparation.Google Scholar
Petrosyan, M. B. 1974, Astrofiz., 10, 471.Google Scholar
Petrosyan, M. B. 1978, Astrofiz., 14, 631.Google Scholar
Robinson, L. B., and Wampler, E. J. 1973, Ap. J. (Letters), 179, L135.Google Scholar
Rood, H. J., and Williams, B. A.. 1989, Ap. J., 339, 772.Google Scholar
Rose, J. A. 1977, Ap. J., 211, 311.Google Scholar
Rose, J. A. 1979, Ap. J., 231, 10.Google Scholar
Rothschild, R., et al., 1979, Space Sci. Instrum., 4, 269.Google Scholar
Rubin, V. C., Hunter, D., and Ford, W. K. Jr. 1990, in preparation.Google Scholar
Seyfert, C. K. 1948a, Phys. Rev., 74, 129.Google Scholar
Seyfert, C. K. 1948b, A. J., 53, 203.Google Scholar
Schechter, P. L., and Dressler, A. 1987, A. J., 94, 563.Google Scholar
Shakhbazyan, R. K. 1957, Astron. Tsirk., 177, 11.Google Scholar
Shakhbazyan, R. K. 1973, Astrofiz., 9, 495.Google Scholar
Shakhbazyan, R. K. 1978, Astrofiz., 14, 273.Google Scholar
Shakhbazyan, R. K., and Amirkhanyan, 1978, Astrofiz., 14, 455.Google Scholar
Shakhbazyan, R. K. and Petrosyan 1974, Astrofiz., 10, 13.Google Scholar
Soifer, B. T., Sanders, D. B., Madore, B. F., Neugebauer, G., Danielson, G. E., Elias, J. H., Lonsdale, C. J., and Rice, W. L., 1987, Ap. J., 320, 238.Google Scholar
Stephan, M. E. 1877, M. N. R. A. S., 37, 334.Google Scholar
Sulentic, J. W. 1983, Ap. J., 270, 417.Google Scholar
Sulentic, J. W. 1987, Ap. J., 322, 605.Google Scholar
Sulentic, J. W., and Arp, H. C. 1983, A. J., 88, 267.Google Scholar
Sulentic, J. W., and Lorre, J. J. 1983, Astr. Ap., 120, 36.Google Scholar
Thompson, L. A. 1976, P. A. S. P., 88, 662.Google Scholar
Tiersch, H. 1976, Astron. Nachr., 297, 301.Google Scholar
Tikhonov, N. A. 1986, Soobshch. Spets. Astrofiz. Obs., 49, 69.Google Scholar
Tikhonov, N. A. 1987a, Soobshch. Spets. Astrofiz. Obs., 52, 51.Google Scholar
Tikhonov, N. A. 1987b, Astrofiz., 27, 253.Google Scholar
Tikhonov, N. A. 1989, private communication.Google Scholar
Tovmasyan, G. M., and Shakhbazyan, E. Ts. 1981, Astrofiz., 17, 265.Google Scholar
Tully, R. B. 1987, Ap. J., 321, 280.Google Scholar
Turner, E. L., and Sargent, W. L. W. 1975, private communication.Google Scholar
Vorontsov-Vel’yaminov, B. A., Dostal’, V. A., and Metlov, V. G. 1980, Pis’ma Astron. Zh., 6, 394.Google Scholar
Walke, D. G., and Mamon, G. A. 1989 Astr. Ap., 295, 291.Google Scholar
Wesselink, A. J. 1974, in New Problems in Astrometry, IAU Symposium No. 61, ed. Gliese, W., Murray, C. A., and Tucker, R. H. (Dordrecht: Reidel), p. 201.Google Scholar
White, S. D. M. 1990, to appear in Dynamics and Interactions of Galaxies, ed. Wielen, R. (Heidelberg: Springer-Verlag).Google Scholar
Whitmore, B. C. 1990, to appear in the Proceedings of the 1989 STScI Workshop, Clusters of Galaxies, (Cambridge: Cambridge University Press).Google Scholar
Williams, B. A., and Rood, H. J. 1987, Ap. J. Suppl., 63, 265.Google Scholar
Williams, B. A., and van Gorkom, J. H. 1988, Ap. J., 287, 66.Google Scholar
Vorontsov-Vel’yaminov, B. A. 1959, Atlas and Catalog of Interacting Galaxies, Vol 1 (Sternberg Institute, Moscow State University, Moscow).Google Scholar
Vorontsov-Vel’yaminov, B. A., Atlas of Interacting Galaxies, Part II, Astr. Ap. Suppl., 28, 1.Google Scholar