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B and R Surface Photometry of Faint Galaxies in the Area of Three Cosmic Voids

  • J. Vennik
  • B. Kovachev
  • U. Hopp
  • B. Kuhn
Conference paper
Part of the International Astronomical Union / Union Astronomique Internationale book series (IAUS, volume 171)

Abstract

We performed B and R surface photometry of 92 faint mostly late type galaxies, selected towards three nearby voids (Hopp et al., 1995 A&AS 109, 537). CCD frames were taken with the Calar Alto 3.5m telescope and with the MPIA/ESO 2.2m telescope. We calculated the azimuthally averaged equivalent profiles, asymtotic total magnitudes and colours, and performed ellipse-fitting of isophotes. Observed light profiles were fitted with a power law \(\mu = \mu_0 + 1.086\alpha r^{1/n}\). About 40% of profiles are pure exponentials (n = 1); 38% of the profiles reveal a bulge/disk or disk/disk composition; 20% of them show central light depression. We classified the nearby galaxies (z ≤ 0.04) as being related either to clusters (11 galaxies), to sheets (23) or to voids (9). The obtained parameters are compared to those of HSB and of LSB field galaxies.

Copyright information

© Springer Science+Business Media Dordrecht 1996

Authors and Affiliations

  • J. Vennik
    • 2
  • B. Kovachev
    • 3
  • U. Hopp
    • 4
  • B. Kuhn
    • 1
  1. 1.Astronomical InstituteSofiaBulgaria
  2. 2.Tartu ObservatoryTartuEstonia
  3. 3.Universitätssternwarte MünchenMünchenGermany
  4. 4.MPI für AstronomieHeidelbergGermany

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