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Deep Optical Imaging of the Compact Group “Seyfert’s Sextet”

Published online by Cambridge University Press:  12 April 2016

S. Nishiura
S. Nishiura*
Affiliation:
Astronomical Institute, Tohoku University, Aoba Aramaki, Sendai, Miyagi, Japan

Abstract

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The compact group of galaxies “Seyfert’s Sextet” shows irregularly shaped soft X-ray morphology. In order to understand its origin, we have obtained a deep optical (VR + I) image of the group. Our image shows that a faint envelope surrounds the member galaxies. We find that optical and soft X-ray images are significantly similar in morphology. This similarity provides direct morphological evidence that the dark matter in Seyfert’s Sextet was originally associated with the individual galaxies and is now spreading out around the group.

Type
Part 2. Properties of Small Groups
Information
International Astronomical Union Colloquium , Volume 174: Small Galaxy Groups , 2000 , pp. 100 - 106
Copyright
Copyright © Astronomical Society of the Pacific 2000

References

Athanassoula, E., Makino, J., & Bosma, A. 1998, MNRAS, 286, 825 CrossRefGoogle Scholar
Bacon, R., Monnet, G., & Simien, F. 1985, A&A, 152, 315 Google Scholar
Bancali, N.A., Lubin, L.M., & Dorman, V. 1995, ApJ, 447, L81 Google Scholar
Brown, B., & Bregman, J.N. 1998, ApJ, 495, L75 CrossRefGoogle Scholar
Davis, M., Tonty, J., Huchra, J., & Latham, D. 1980, ApJ, 238, L113 CrossRefGoogle Scholar
DellÁntonio, I.P., Geller, M.J., & Fabricant, D.G. 1994, AJ, 107, 427 CrossRefGoogle Scholar
Ebeling, H., Voges, W., & Böhringer, H. 1994, ApJ, 436, 44 CrossRefGoogle Scholar
Einasto, J., Kaasik, A., & Saar, E. 1974, Nature, 250, 309 CrossRefGoogle Scholar
Faber, S.M. & Gallagher, J.S. 1979, ARA&A, 17, 135 Google Scholar
Heekman, T.M. 1980, A&A, 87, 152 Google Scholar
Heisler, J., Tremarne, S., & Bancali, J.N. 1985, ApJ, 298, 8 CrossRefGoogle Scholar
Hickson, P. 1982, ApJ, 255, 382 CrossRefGoogle Scholar
Hickson, P. 1993, Ap. Lett. Commun., 29, 1 Google Scholar
Koratkar, A., Deustua, S.E., Heekman, T.M., Filippenko, A.V., Ho, L.C., & Rao, M. 1995, ApJ, 440, 132 CrossRefGoogle Scholar
Lo, K.Y., Sargent, W.L.W., & Young, K. 1993, AJ, 106, 507 CrossRefGoogle Scholar
Matsushita, K., Makishima, K., Ikebe, Y., Rokutanda, E., Yamasaki, N.Y., & Ohashi, T. 1998, ApJ, 499, L13 CrossRefGoogle Scholar
Mulchaey, J.S. & Zabludoff, A.I. 1998, ApJ, 496, 73 CrossRefGoogle Scholar
Mulchaey, J.S., & Zabludoff, A.I. 1999, ApJ, 514, 133 CrossRefGoogle Scholar
Ostriker, J.P., Peebles, P.J.E., & Yahil, A. 1974, ApJ, 193, L1 CrossRefGoogle Scholar
Pildis, R.A., Bregman, J.N., & Evrard, A.E. 1995, ApJ, 443, 514 CrossRefGoogle Scholar
Ponman, T.J., & Bertram, D. 1993, Nature, 363, 51 CrossRefGoogle Scholar
Ponman, T.J., Bourner, P.D.J., Ebeling, H., & Böhringer, H. 1996, MNRAS, 283, 690 CrossRefGoogle Scholar
Ponman, T.J., Allan, D.J., Jones, L.R., Merrifield, M., McHardy, I.M., Lehto, H.J., & Luppino, G.A. 1994, Nature, 369, 462 CrossRefGoogle Scholar
Read, A.M., Ponman, T.J., & Strickland, D.K. 1997, MNRAS, 286, 626 CrossRefGoogle Scholar
Rubin, V.C., Burstein, D., & Ford, W.K. Jr., & Thonnard, N. 1985, ApJ, 289, 81 CrossRefGoogle Scholar
Saracco, P., & Ciliegi, P. 1995, A&A, 301, 348 Google Scholar
Seyfert, C.K. 1948a, Phys. Rev., 74, 129 Google Scholar
Seyfert, C.K. 1948b, AJ, 53, 203 CrossRefGoogle Scholar
Sulentic, J.W., & Lorre, J.J. 1983, A&A, 120, 36 Google Scholar
Trimble, V. 1987, ARA&A, 25, 425 Google Scholar
Vogler, A., Pietsch, W., & Kahabka, P. 1996, A&A, 305, 74 Google Scholar
Zabludoff, A.I., & Mulchaey, J.S. 1998, ApJ, 496, 39 CrossRefGoogle Scholar
Zaritsky, D. 1992, PASP, 104, 831 CrossRefGoogle Scholar
Zaritsky, D., Smith, R., Frenk, C., & White, S.D.M. 1997, ApJ, 478, 39 CrossRefGoogle Scholar