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Date and Time of the Query: 2019-08-25 T14:01:03 PDT
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For refcode 2003A&A...398..479K:
Retrieve 156 NED objects in this reference.
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NED Abstract

Copyright by European Southern Observatory (ESO). Reproduced by permission
2003A&A...398..479K Local galaxy flows within 5 Mpc I. D. Karachentsev, D. I. Makarov, M. E. Sharina, A. E. Dolphin, E. K. Grebel, D. Geisler, P. Guhathakurta, P. W. Hodge, V. E. Karachentseva, A. Sarajedini, P. Seitzer 1 - Special Astrophysical Observatory, Russian Academy of Sciences, N. Arkhyz, KChR 369167, Russia 2 - Kitt Peak National Observatory, National Optical Astronomy Observatories, PO Box 26732, Tucson, AZ 85726, USA 3 - Max-Planck-Institut fur Astronomie, Konigstuhl 17, 69117 Heidelberg, Germany 4 - Departamento de Fisica, Grupo de Astronomia, Universidad de Concepcion, Casilla 160-C, Concepcion, Chile 5 - Herzberg Fellow, Herzberg Institute of Astrophysics, 5071 W. Saanich Road, Victoria, B.C. V9E 2E7, Canada 6 - Permanent address: UCO/Lick Observatory, University of California at Santa Cruz, Santa Cruz, CA 95064, USA 7 - Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195, USA 8 - Astronomical Observatory of Kiev University, 04053, Observatorna 3, Kiev, Ukraine 9 - Department of Astronomy, University of Florida, Gainesville, FL 32611, USA 10 - Department of Astronomy, University of Michigan, 830 Dennison Building, Ann Arbor, MI 48109, USA 11 - Isaac Newton Institute, Chile, SAO Branch Received 10 September 2002 / Accepted 22 October 2002 Abstract. We present Hubble Space Telescope/WFPC2 images of sixteen dwarf galaxies as part of our snapshot survey of nearby galaxy candidates. We derive their distances from the luminosity of the tip of the red giant branch stars with a typical accuracy of ~12%. The resulting distances are 4.26 Mpc (KKH 5), 4.74 Mpc (KK 16), 4.72 Mpc (KK 17), 4.66 Mpc (ESO 115-021), 4.43 Mpc (KKH 18), 3.98 Mpc (KK 27), 4.61 Mpc (KKH 34), 4.99 Mpc (KK 54), 4.23 Mpc (ESO 490-017), 4.90 Mpc (FG 202), 5.22 Mpc (UGC 3755), 5.18 Mpc (UGC 3974), 4.51 Mpc (KK 65), 5.49 Mpc (UGC 4115), 3.78 Mpc (NGC 2915), and 5.27 Mpc (NGC 6503). Based on distances and radial velocities of 156 nearby galaxies, we plot the local velocity-distance relation, which has a slope of H_0_ = 73 km s^-1^ Mpc^-1^ and a radial velocity dispersion of 85 km s^-1^. When members of the M81 and Cen A groups are removed, and distance errors are taken into account, the radial velocity dispersion drops to {sigma}_v_ = 41 km s^-1^. The local Hubble flow within 5 Mpc exhibits a significant anisotropy, with two infall peculiar velocity regions directed towards the Supergalactic poles. However, two observed regions of outflow peculiar velocity, situated on the Supergalactic equator, are far away (~50^ deg^ ) from the Virgo/anti-Virgo direction, which disagrees with a spherically symmetric Virgo-centric flow. About 63% of galaxies within 5 Mpc belong to known compact and loose groups. Apart from them, we found six new probable groups, consisting entirely of dwarf galaxies. Key words: galaxies: dwarf - galaxies: distances and redshifts - galaxies: kinematics and dynamics
Retrieve 156 NED objects in this reference.
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