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Charting the neighbourhood

Published online by Cambridge University Press:  08 November 2005

Rami Rekola
Affiliation:
Tuorla Observatory, VISPA, University of Turku, Piikkiö, FI-21500, Finland email: rareko@astro.utu.fi
Helmut Jerjen
Affiliation:
Research School of Astronomy and Astrophysics, The Australian National University, MT Stromlo Observatory, Cotter Road, Weston ACT 2611, Australia
Chris Flynn
Affiliation:
Tuorla Observatory, VISPA, University of Turku, Piikkiö, FI-21500, Finland email: rareko@astro.utu.fi
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Abstract

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We present Surface Brightness Fluctuation (SBF) distances of fifteen early-type dwarf galaxies and the S0 galaxy NGC 4150 in the Local Volume based on deep $B$- and $R$-band CCD images obtained with the 2.56 metre Nordic Optical Telescope (NOT). Distances have been determined from Fourier analysed fields selected from optimal locations on the galaxies. Distances were found to range from 3 to 16 Mpc.

The SBF method has been demonstrated to efficiently measure relatively accurate distances from the ground with mid-aperture telescopes. The SBF method to measure distances to dwarf elliptical (dE) galaxies has also been empirically calibrated using three dEs with known tip of the red giant branch (TRGB) distances.

Type
Contributed Papers
Copyright
© 2005 International Astronomical Union