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Date and Time of the Query: 2019-05-27 T04:24:54 PDT
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For refcode 2002A&A...389..812K:
Retrieve 69 NED objects in this reference.
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Copyright by European Southern Observatory (ESO). Reproduced by permission
2002A&A...389..812K The very local Hubble flow I. D. Karachentsev, M. E. Sharina, D. I. Makarov, A. E. Dolphin, E. K. Grebel, D. Geisler, P. Guhathakurta, P. W. Hodge, V. E. Karachentseva, A. Sarajedini and P. Seitzer Special Astrophysical Observatory, Russian Academy of Sciences, N. Arkhyz, KChR, 369167, Russia Isaac Newton Institute, Chile, SAO Branch Kitt Peak National Observatory, National Optical Astronomy Observatories, PO Box 26732, Tucson, AZ 85726, USA Max-Planck-Institut fur Astronomie, Konigstuhl 17, 69117 Heidelberg, Germany Departamento de Fisica, Grupo de Astronomia, Universidad de Concepcion, Casilla 160-C, Concepcion, Chile UCO/Lick Observatory, University of California at Santa Cruz, Santa Cruz, CA 95064, USA Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195, USA Astronomical Observatory of Kiev University, 04053, Observatorna 3, Kiev, Ukraine Department of Astronomy, University of Florida, Gainesville, FL 32611, USA Department of Astronomy, University of Michigan, 830 Dennison Building, Ann Arbor, MI 48109, USA Received 24 December 2001/Accepted 25 April 2002 Abstract. We present Hubble Space Telescope/WFPC2 images of eighteen galaxies situated in the vicinity of the Local Group (LG) as part of an ongoing snapshot survey of nearby galaxies. Their distances derived from the magnitude of the tip of the red giant branch are 1.92 +/- 0.10 Mpc (ESO 294-010), 3.06 +/- 0.37 (NGC 404), 3.15 +/- 0.32 (UGCA 105), 1.36 +/- 0.07 (Sex B), 1.33 +/- 0.08 (NGC 3109), 2.64 +/- 0.21 (UGC 6817), 2.86 +/- 0.14 (KDG 90), 2.27 +/- 0.19 (IC 3104), 2.54 +/- 0.17 (UGC 7577), 2.56 +/- 0.15 (UGC 8508), 3.01 +/- 0.29 (UGC 8651), 2.61 +/- 0.16 (KKH 86), 2.79 +/- 0.26 (UGC 9240), 1.11 +/- 0.07 (SagDIG), 0.94 +/- 0.04 (DDO 210), 2.07 +/- 0.18 (IC 5152), 2.23 +/- 0.15 (UGCA 438), and 2.45 +/- 0.13 (KKH 98). Based on the velocity-distance data for 36 nearest galaxies around the LG, we find the radius of the zero-velocity surface of the LG to be R_0_ = (0.94 +/- 0.10) Mpc, which yields a total mass M_LG_ = (1.3 +/- 0.3) x 10^12^ M_sun_. The galaxy distribution around the LG reveals a Local Minivoid which does not contain any galaxy brighter than M_V_ = -11 mag within a volume of ~100 Mpc^3^. The local Hubble flow seems to be very cold, having a one-dimensional mean random motion of ~30 km s^-1^. The best-fit value of the local Hubble parameter is 73 +/- 15 km s^-1^ Mpc^-1^. The luminosity function for the nearby field galaxies is far less steep than one for members of the nearest groups. Key words: galaxies: dwarf - galaxies: distances and redshifts - galaxies: kinematics and dynamics - galaxies: Local Group
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