Skip to main content Accessibility help
×
Home

Halos around Ellipticals and the Environment Dependence of Hubble Type

  • W. H. Zurek (a1), P. J. Quinn (a1) and J. K. Salmon (a1)

Extract

Shells are often observed around elliptical galaxies (Malin & Carter 1983). Stars in the shells can be regarded as test particles. Therefore for a simple shell morphology (Hernquist & Quinn 1985) the distances between shells allow one to trace the shape of the potential of the host galaxy (Quinn 1984). One can also deduce the distribution of gravitating material. Following this method one concludes that the distribution of luminous matter alone cannot account for the observed shell structure. Depending on the age of the outermost shell one can conclude that either the massive halo terminates at a radius ≃ 5 r e ≃ 15 kpc., or that the core of the halo γ≃2.5 kpc, where the halo density is given by ρ≃ {r2 + γ2}−1. In either case, the central density of the halo is no less than an order of magnitude in excess of that expected for a spiral galaxy of comparable luminosity (Figure 1.).

    • 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.

      Halos around Ellipticals and the Environment Dependence of Hubble Type
      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.

      Halos around Ellipticals and the Environment Dependence of Hubble Type
      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.

      Halos around Ellipticals and the Environment Dependence of Hubble Type
      Available formats
      ×

Copyright

References

Hide All
Hernquist, L. and Quinn, P.J. 1985 (in preparation).
Hoffman, Y. 1985 Ap. J. in press.
Malin, D.F. and Carter, D. 1983 Nature 285 643.
Peebles, P.J.E. 1980 The Large Scale Structure of the Universe, Princeton Quinn, P.J. 1984 Ap. J. 279 596.

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