COSMICFLOWS-2: THE DATA

By R. B. Tully, Hélène Courtois, A. Dolphin, J. Fisher, P. Héraudeau, B. Jacobs, I. Karachentsev, Dmitry I. Makarov, L. Makarova, S. Mitronova and 4 more. 2013

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Cosmicflows-2 is a compilation of distances and peculiar velocities for over 8000 galaxies. Numerically the largest contributions come from the luminosity–line width correlation for spirals, the Tully–Fisher relation (TFR), and the related fundamental plane relation for E/S0 systems, but over 1000 distances are contributed by methods that provide more accurate individual distances: Cepheid, tip of the red giant branch (TRGB), surface brightness fluctuation, Type Ia supernova, and several miscellaneous but accurate procedures. Our collaboration is making important contributions to two of these inputs: TRGB and TFR. A large body of new distance material is presented. In addition, an effort is made to ensure that all the contributions, both our own and those from the literature, are on the same scale. Overall, the distances are found to be compatible with a Hubble constant H0 = 74.4 ± 3.0 km s−1 Mpc−1. The great interest going forward with this data set will be with velocity field studies. Cosmicflows-2 is characterized by a great density and high accuracy of distance measures locally, falling to sparse and coarse sampling extending to z = 0.1.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/f59f0b9f8a5d84b02d5c2513f3b21192f132066f

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Citations in the corpus

ELVIS: Exploring the Local Volume in Simulations (2013, background): “…avenue for characterizing the faint end of the global luminosity function and for studying resolved stellar populations as beacons from an earlier age (see, e.g. Makarov & Karachentsev 2011; Weisz et al. 2011; ? sgarriso@uci.edu McConnachie 2012; Karachentsev & Kaisina 2013; Tully et al. 2013).”
PTF12os and iPTF13bvn. Two stripped-envelope supernovae from low-mass progenitors in NGC 5806 (2016, methodology): “We adopt the distance modulus µ = 32.14 ± 0.20 mag (Tully et al. 2013), corresponding to a distance of 26.8+2.6−2.4 Mpc 10,11.”
One Law to Rule Them All: The Radial Acceleration Relation of Galaxies (2016, methodology): “Column (4) gives the distance method: 1 = Virgocentric infall model (as in Paper I), 2 = surface bright fluctuations (taken from Tully et al. 2013).”
The Arecibo Legacy Fast ALFA Survey: The ALFALFA Extragalactic H i Source Catalog (2018, methodology): “Where available, primary distances in the published literature are adopted; we also use secondary distances, mainly from Tully et al. (2013), for galaxies with czcmb < 6000 km s −1.”
SPARC: MASS MODELS FOR 175 DISK GALAXIES WITH SPITZER PHOTOMETRY AND ACCURATE ROTATION CURVES (2016, methodology): “The vast majority of these distances are drawn from the Extragalactic Distance Database (Jacobs et al. 2009; Tully et al. 2013).”
HyperLEDA. III. The catalogue of extragalactic distances (2014, methodology): “The TF and FP methods allow us to investigate the cosmic flows in the Universe on scales of several hundred Mpc (Tully et al. 2013).”
THE SMALL SCATTER OF THE BARYONIC TULLY–FISHER RELATION (2015, background): “These are generally on the same zero- point scale and have errors ranging from ∼5% to ∼10% (see Tully et al. 2013).”
Galaxy Groups Within 3500 km s−1 (2017, background): “We have measured distances for many but not all galaxies to be considered (Tully et al. 2013, 2016).”