Dwarf spheroidal galaxies in the Virgo Cluster

S Phillipps*, QA Parker, JM Schwartzenberg, JB Jones

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

51 Citations (Scopus)

Abstract

We present a study of the smallest and faintest galaxies found in a very deep photographic R-band survey of regions of the Virgo Cluster, totalling over 3 deg(2), made with the UK Schmidt Telescope. The objects we detect have the same physical sizes and surface brightnesses as Local Group dwarf spheroidal galaxies. The luminosity function of these extremely low luminosity galaxies (down to M(R) similar or equal to -11 or about 5 x 10(-5) L*) is very steep, with a power-law slope alpha similar or equal to -2, as would be expected in many theories of galaxy formation via hierarchical clustering, supporting previous observational evidence at somewhat higher luminosities in other clusters.

Original languageEnglish
Pages (from-to)L59-L62
Number of pages4
JournalAstrophysical Journal
Volume493
Issue number2
Publication statusPublished - 1 Feb 1998

Keywords

  • galaxies, clusters, individual (Virgo)
  • galaxies, elliptical and lenticular, cD
  • galaxies, evolution
  • galaxies, luminosity function, mass function
  • galaxies, photometry
  • SURFACE BRIGHTNESS GALAXIES
  • TECH-PAN FILMS
  • LUMINOSITY FUNCTION
  • COMA CLUSTER
  • FAINT GALAXIES
  • LOCAL GROUP
  • PHOTOMETRY
  • SEARCH
  • CORE
  • EVOLUTION

Cite this

Phillipps, S., Parker, QA., Schwartzenberg, JM., & Jones, JB. (1998). Dwarf spheroidal galaxies in the Virgo Cluster. Astrophysical Journal, 493(2), L59-L62.