Skip to main content Accessibility help
×
Home

New Structure in the Shapley Supercluster

  • M. J. Drinkwater (a1), D. Proust (a2), Q. A. Parker (a3), H. Quintana (a4) and E. Slezak (a5)...

Abstract

We present new radial velocities for 306 bright (R < 16) galaxies in a 77 deg2 region of the Shapley supercluster, measured with the FLAIR-II spectrograph on the UK Schmidt Telescope. The galaxies we measured were uniformly distributed over the survey area, in contrast to previous samples which were concentrated in several rich Abell clusters. Most of the galaxies (230) were members of the Shapley supercluster: they trace out two previously unknown sheets of galaxies linking the Abell clusters of the supercluster. In a 44 deg2 area of the supercluster excluding the Abell clusters, these sheets alone represent an overdensity of a factor of 2·0 ± 0·2 compared to a uniform galaxy distribution. The supercluster is not flattened in the Declination direction as has been suggested in previous papers. Within our survey area the new galaxies contribute an additional 50% to the known contents of the Shapley supercluster, with a corresponding increase in its contribution to the motion of the Local Group.

    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      New Structure in the Shapley Supercluster
      Available formats
      ×

      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

      New Structure in the Shapley Supercluster
      Available formats
      ×

      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

      New Structure in the Shapley Supercluster
      Available formats
      ×

Copyright

References

Hide All
Bardelli, S., Zucca, E., Malizia, A., Zamorani, G., Scaramella, R., & Vettolani, G. 1996, A&A, 305, 435
Bardelli, S., Zucca, E., Zamorani, G., Vettolani, G., & Scaramella, R. 1998, MNRAS, 296, 599
Bardelli, S., Zucca, E., & Zamorani, G. 1999, in Observational Cosmology: The Development of Galaxy Systems, Sesto 1998 (astro-ph/9811015)
Drinkwater, M. J., Currie, M. J., Young, C. K., Hardy, E., & Yearsley, J. M. 1996, MNRAS, 279, 595
Infante, L., Slezak, E., & Quintana, H. 1996, A&A, 315, 657
Kraan-Korteweg, R. C., Woudt, P. A., Cayatte, V., Fairall, A. P., Balkowski, C., & Henning, P. A. 1996, Nature, 379, 519
Kurtz, M. J., & Mink, D. J. 1998, PASP, 110, 934
Metcalfe, N., Shanks, T., Fong, R., & Jones, L. R. 1991, MNRAS, 249, 498
Parker, Q. A., & Watson, F. G. 1995, in Wide Field Spec-troscopy and the Distant Universe, 35th Herstmonceux Conference, ed. S. J. Maddox & A. Aragon-Salamanca (Singapore: World Scientific), p. 33
Parker, Q. A. 1997, in Wide Field Spectroscopy, 2nd Conference of the Working Group of IAU Commission 9 on Wide Field Imaging, ed. E. Kontizas et al. (Dordrecht: Kluwer), p. 25
Pierre, M., Bohringer, H., Ebeling, H., Voges, W., Schuecker, P., Cruddace, R., & MacGillivray, H. 1994, A&A, 290, 725
Quintana, H., Ramirez, A., Melnick, J., Raychaudhury, S., & Slezak, E. 1995, AJ, 110, 463 (Paper I)
Quintana, H., Melnick, J., Proust, D., & Infante, L. 1997, A&A Suppl, 125, 247 (Paper II)
Raychaudhury, S. 1989, Nature, 342, 251
Scaramella, R., Baiesi-Pillastrini, G, Chincarini, G., Vettolani, G., & Zamorani, G. 1989, Nature, 338, 562
Tody, D. 1993, in Astronomical Data Analysis Software and Systems II, ASP Conf. Ser., Vol. 52, ed. R. J. Hanisch et al. (San Francisco: PASP), p. 173
Tonry, J., & Davis, M. 1979, AJ, 84, 1511

Keywords

New Structure in the Shapley Supercluster

  • M. J. Drinkwater (a1), D. Proust (a2), Q. A. Parker (a3), H. Quintana (a4) and E. Slezak (a5)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed