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Astrophysical Bulletin

, Volume 70, Issue 4, pp 379–391 | Cite as

New low surface brightness dwarf galaxies detected around nearby spirals

  • I. D. KarachentsevEmail author
  • P. Riepe
  • T. Zilch
  • M. Blauensteiner
  • M. Elvov
  • P. Hochleitner
  • B. Hubl
  • G. Kerschhuber
  • S. Küppers
  • F. Neyer
  • R. Pölzl
  • P. Remmel
  • O. Schneider
  • R. Sparenberg
  • U. Trulson
  • G. Willems
  • H. Ziegler
Article

Abstract

We conduct a survey of low surface brightness (LSB) satellite galaxies around the Local Volume massive spirals using long exposures with small amateur telescopes. We identified 27 low and very low surface brightness objects around the galaxies NGC672, 891, 1156, 2683, 3344, 4258, 4618, 4631, and 5457 situated within 10 Mpc from us, and found nothing new around NGC2903, 3239, 4214, and 5585. Assuming that the dwarf candidates are the satellites of the neighboring luminous galaxies, their absolute magnitudes are in the range of −8.6 > M B > −13.3, their effective diameters are 0.4–4.7 kpc, and the average surface brightness is 26ṃ1/□″. The mean linear projected separation of the satellite candidates from the host galaxies is 73 kpc. Our spectroscopic observations of two LSB dwarfs with the Russian 6-meter telescope confirm their physical connection to the host galaxies NGC891 and NGC2683.

Keywords

galaxies: dwarf 

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Copyright information

© Pleiades Publishing, Ltd. 2015

Authors and Affiliations

  • I. D. Karachentsev
    • 1
    Email author
  • P. Riepe
    • 2
  • T. Zilch
    • 2
  • M. Blauensteiner
    • 2
  • M. Elvov
    • 2
  • P. Hochleitner
    • 2
  • B. Hubl
    • 2
  • G. Kerschhuber
    • 2
  • S. Küppers
    • 2
  • F. Neyer
    • 2
  • R. Pölzl
    • 2
  • P. Remmel
    • 2
  • O. Schneider
    • 2
  • R. Sparenberg
    • 2
  • U. Trulson
    • 2
  • G. Willems
    • 2
  • H. Ziegler
    • 2
  1. 1.Special Astrophysical ObservatoryRussian Academy of SciencesNizhnii ArkhyzRussia
  2. 2.Tief Belichtete Galaxien group of Vereinigung der Sternfreunde e.V.Fachgruppe AstrofotografieHeppenheimGermany

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