Skip to main content Accessibility help
×
Home

Galaxy scaling relations from the ACS Virgo and Fornax Cluster Surveys: no evidence for a dwarf-giant dichotomy

  • Patrick Côté (a1), Laura Ferrarese (a1), Andrés Jordán (a2), John P. Blakeslee (a3), Chin-Wei Chen (a1) (a4), Leopoldo Infante (a5), Simona Mei (a6), Eric W. Peng (a1), John L. Tonry (a7) and Michael J. West (a2)...

Abstract

We examine the photometric and structural properties of early-type galaxies derived from the ACS Virgo and Fornax Cluster Surveys, supplementing these data with previously published or newly reanalysed data for additional early-type galaxies in Virgo, Fornax and the Local Group. As we have noted elsewhere, Sérsic models are found to provide accurate representations of the observed brightness profiles on scales greater than a few percent of the effective radius, Re. On smaller scales, the brightness profiles of bright (MB ≳ −20) galaxies show central deficits with respect to the inward extrapolation of the Sérsic models; fainter galaxies usually show central excesses. Fainter than MB ≈ −20, we find a continuity in the photometric and structural scaling relations: i.e., between absolute magnitude, central surface brightness, Sérsic index, effective radius, and the surface brightness measured at, and averaged within, the effective radius. There is no evidence for a “dwarf/giant dichotomy” — a conclusion consistent with a number of recent studies but contrary to some earlier claims.

    • 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.

      Galaxy scaling relations from the ACS Virgo and Fornax Cluster Surveys: no evidence for a dwarf-giant dichotomy
      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.

      Galaxy scaling relations from the ACS Virgo and Fornax Cluster Surveys: no evidence for a dwarf-giant dichotomy
      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.

      Galaxy scaling relations from the ACS Virgo and Fornax Cluster Surveys: no evidence for a dwarf-giant dichotomy
      Available formats
      ×

Copyright

References

Hide All
Aguerri, , et al. 2005, AJ, 130, 475
Binggeli, B., Sandage, A., & Tammann, G. A. 1985, AJ, 90, 1681
Binggeli, B., Sandage, A., & Terenghi, M. 1984, AJ, 89, 64
Caldwell, N. 1983, AJ, 88, 804
Caldwell, N. 1987, AJ, 94, 1116
Côté, P., et al. 2004, ApJS, 153, 223 (ACSVCS Paper I)
Côté, P., et al. 2006, ApJS, 165, 57 (ACSVCS Paper VIII)
Côté, P., et al. 2007, ApJ, in press (ACSFCS Paper II)
Ferguson, H. C. 1989, AJ, 98, 367
Ferrarese, L., et al. 2006a, ApJ, 164, 334 (ACSVCS Paper VI)
Ferrarese, L., et al. 2006b, ApJ, 644, L21
Ferrarese, L., et al. 2006c, arXiv:astro-ph/0612139
Ford, H. C., et al. 1998, Proc. SPIE, 3356, 234
Graham, A. W., et al. 2003a, AJ, 125, 2936
Graham, A. W., et al. 2003b, AJ, 125, 2951
Graham, A. W. & Guzmán, R. 2003, AJ, 125, 2936
Gavazzi, G., et al. 2005, A&A, 430, 411
Jerjen, H. & Binggeli, B. 1997, in ASP Conference Series, Vol. 116, p. 239
Jordán, A., et al. 2007, ApJS, 169, 213 (ACSFCS Paper I)
Kormendy, J. 1985, ApJ, 295, 73
McConnachie, A. W. & Irwin, M. J. 2006, MNRAS, 365, 1263
Mei, S., et al. 2007, ApJ, 655, 144 (ACSVCS Paper XIII)
Sérsic, J.-L. 1968, Atlas de Galaxias Australes (Córdoba: Obs. Astron., Univ. Nac. Córdova)
Stiavelli, M., et al. 2001, AJ, 121, 1385
Zibetti, S., et al. 2005, in IAU Colloq. 198, p. 380
MathJax
MathJax is a JavaScript display engine for mathematics. For more information see http://www.mathjax.org.

Keywords

Related content

Powered by UNSILO

Galaxy scaling relations from the ACS Virgo and Fornax Cluster Surveys: no evidence for a dwarf-giant dichotomy

  • Patrick Côté (a1), Laura Ferrarese (a1), Andrés Jordán (a2), John P. Blakeslee (a3), Chin-Wei Chen (a1) (a4), Leopoldo Infante (a5), Simona Mei (a6), Eric W. Peng (a1), John L. Tonry (a7) and Michael J. West (a2)...

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.