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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



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ID: 198449.0, MPI für Astronomie / Publikationen_mpia
Distances to nearby galaxies in sculptor
Authors:Karachentsev, I.D.; Grebel, E.K.; Sharina, M.E.; Dolphin, A.E.; Geisler, D.; Guhathakurta, P.; Hodge, P.W.; Karachentseva, V.E.; Sarajedini, A.; Seitzer, P.
Date of Publication (YYYY-MM-DD):2003
Title of Journal:Astronomy and Astrophysics
Journal Abbrev.:A&A
Volume:404
Start Page:93
End Page:111
Sequence Number of Article:2003A&A...404...93K
Review Status:not specified
Audience:Experts Only
Abstract / Description:We present an analysis of Hubble Space Telescope/WFPC2 images of nine nearby galaxies in Sculptor. We derive their distances from the luminosity of the tip of the red giant branch stars with a typical accuracy of ~ 12%. Their distances are 4.21 Mpc (Sc 22), 4.92 Mpc (DDO 226), 3.94 Mpc (NGC 253), 3.40 Mpc (KDG 2), 3.34 Mpc (DDO 6), 3.42 Mpc (ESO 540-030), 4.43 Mpc (ESO 245-05), 4.27 Mpc (UGCA 442), and 3.91 Mpc (NGC 7793). The galaxies are concentrated in several spatially separated loose groups around NGC 300, NGC 253, and NGC 7793. The Sculptor galaxy complex together with the CVn I cloud and the Local Group form a 10 Mpc filament, apparently driven by the free Hubble flow.

Based on observations made with the NASA/ESA Hubble Space Telescope. The Space Telescope Science Institute is operated by the Association of Universities for Research in Astronomy, Inc. under NASA contract NAS 5-26555.
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
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