Low surface brightness dwarf galaxies in the Bristol Anglo-Australian observatory Virgo Cluster survey

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

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Abstract

We describe a new, deep photographic survey of the Virgo Cluster which uses multiple exposures on Tech Pan film with the United Kingdom Schmidt Telescope to probe the dwarf population to fainter surface brightness limits than previous surveys. We have identified galaxies having sizes (> 3 arcsec scale length) and surface brightnesses (I 24.5 R mag arcsec(-2)) characteristic of those expected for dwarf spheroidal galaxies in the cluster. The survey is providing substantial samples of extremely low luminosity galaxies outside the environment of the Local Group and nearby groups for the first time. An initial study of two small areas has found dwarf spheroidal candidates in large numbers (500 deg(-2)) which indicate a steep, continuously rising luminosity function at low luminosities.

Original languageEnglish
Title of host publicationLOW SURFACE BRIGHTNESS UNIVERSE
EditorsJI Davies, C Impey, S Phillipps
Place of PublicationSAN FRANCISCO
PublisherAstronomical Society of the Pacific
Pages84-91
Number of pages8
ISBN (Print)1-886733-92-9
Publication statusPublished - 1999
EventIAU Colloquium 171 on the Low Surface Brightness Universe - CARDIFF, United Kingdom
Duration: 5 Jul 199810 Jul 1998

Publication series

NameASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES
PublisherASTRONOMICAL SOC PACIFIC
Volume170

Conference

ConferenceIAU Colloquium 171 on the Low Surface Brightness Universe
CountryUnited Kingdom
Period5/07/9810/07/98

Keywords

  • TECH-PAN FILMS
  • LUMINOSITY FUNCTION
  • FAINT GALAXIES
  • RICH CLUSTERS
  • PHOTOMETRY
  • DISTRIBUTIONS
  • STACKING

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