Light and Motion in the Local Volume

2004/12/03 by Alan B. Whiting · 1 citation
Physics and Astronomy · #Astronomy and Astrophysical Research #Cosmology and Gravitation Theories #Dark matter #Fundamental plane (elliptical galaxies) #Galaxies: Formation, Evolution, Phenomena #Galaxy #Gravitation #Luminosity #Motion (physics) #Plane (geometry) #Sign (mathematics) #Volume (thermodynamics) #astro-ph

paper · pdf · doi:10.1086/428085

published as Astrophys.J. 622 (2005) 217-234 · 47 pages, 12 figures, several long tables. Accepted by the Astrophysical Journal

arxiv created 2004/12/03 · openalex publication_date 2005/03/20 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Using high-quality data on 149 galaxies within 10 Mpc, I find no correlation between luminosity and peculiar velocity at all. There is no unequivocal sign on scales of 1-2 Mpc of the expected gravitational effect of the brightest galaxies, in particular infall toward groups, or of infall toward the supergalactic plane on any scale. Either dark matter is not distributed in the same way as luminous matter in this region, or peculiar velocities are not due to fluctuations in mass. The sensitivity of peculiar velocity studies to the background model is highlighted.

Citations

• Radial Velocity of the Phoenix Dwarf Galaxy: Linking Stars and H [CSC]i[/CSC] Gas
• A 4% Geometric Distance to the Galaxy NGC4258 from Orbital Motions in a Nuclear Gas Disk
• The Resolved Stellar Populations in NGC 1705
• The Cepheid Distance to NGC 5236 (M83) with the ESO Very Large Telescope
• A Dwarf Irregular Galaxy at the Edge of the Local Group: Stellar Populations and Distance of IC 5152
• The Spatial and Age Distribution of Stellar Populations in DDO 190
• Stellar Populations at the Center of IC 1613
• Star Formation and the Interstellar Medium in Four Dwarf Irregular Galaxies
• Cepheids and Long-Period Variables in NGC 4395
• The Star Formation History of LGS 3
• Final Results from theHubble Space TelescopeKey Project to Measure the Hubble Constant
• RR Lyrae and Short-Period Variable Stars in the Dwarf Irregular Galaxy NGC 6822
• An optical velocity for the Phoenix dwarf galaxy
• Detection of the Red Giant Branch Stars in M82 Using theHubble Space Telescope
• A Catalog of Neighboring Galaxies
• Distances to nearby galaxies around IC 342

Cited by

• Astrophysics in 2005