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J/AJ/146/86        Cosmicflows-2 catalog (CF2)                    (Tully+, 2013)

Cosmicflows-2: the data. Tully R.B., Courtois H.M., Dolphin A.E., Fisher J.R., Heraudeau P., Jacobs B.A., Karachentsev I.D., Makarov D., Makarova L., Mitronova S., Rizzi L., Shaya E.J., Sorce J.G., Wu P.-F. <Astron. J., 146, 86 (2013)> =2013AJ....146...86T
ADC_Keywords: Galaxy catalogs ; Space velocities ; Morphology ; Velocity dispersion Keywords: catalogs - galaxies: distances and redshifts Abstract: 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±3.0km/s/Mpc. 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. Description: Cosmicflows-2 is a compilation of 8315 distances (determined by six distinct methods; Table1) within 5224 entities: 3625 of these distances in 534 groups and 4690 singles. A precursor catalog by Tully et al. (2008, cat. J/ApJ/676/184) has retroactively been called Cosmicflows-1. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 301 8315 Cosmicflows-2 compendium of distances table2.dat 153 5224 Distances for galaxy groups
See also: VII/242 : LEDA galaxies with DENIS measurements catalog (Paturel+, 2005) VII/237 : HYPERLEDA. I. Catalog of galaxies (Paturel+, 2003) VII/145 : Nearby Galaxies Catalogue (NBG) (Tully 1988) VII/155 : Third Reference Cat. of Bright Galaxies (RC3) (de Vaucouleurs+ 1991) J/MNRAS/416/2840 : The 2M++ galaxy redshift catalogue (Lavaux+, 2011) J/ApJ/676/184 : Peculiar motion away from the Local Void (Tully+, 2008) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 7 I7 --- PGC [4/9003144] Principal Galaxies Catalog number 9- 14 F6.2 Mpc Dist [0.03/518] Distance (1) 16- 20 F5.2 mag DM [17/39] Distance modulus (1) 22- 25 F4.2 --- Err [0.05/0.25] Fractional distance error (1) 27- 34 A8 --- r_Dist [CTLMSNHF ] Source of distance (2) 36- 37 I2 h RAh ? Hour of Right Ascension (J2000) 39- 40 I2 min RAm ? Minute of Right Ascension (J2000) 42- 45 F4.1 s RAs ? Second of Right Ascension (J2000) 47 A1 --- DE- Sign of the Declination (J2000) 48- 49 I2 deg DEd ? Degree of Declination (J2000) 51- 52 I2 arcmin DEm ? Arcminute of Declination (J2000) 54- 57 F4.1 arcsec DEs ? Arcsecond of Declination (J2000) 59- 66 F8.4 deg GLON Galaxy Galactic longitude 68- 75 F8.4 deg GLAT Galaxy Galactic latitude 77- 84 F8.4 deg SGLON Galaxy Supergalactic longitude 86- 93 F8.4 deg SGLAT Galaxy Supergalactic latitude 95- 96 I2 --- MT [-5/20] Numeric code for Morphological Type from RC3 (VII/155) 98-101 F4.2 mag E(B-V) Schlegel et al. (1998ApJ...500..525S) B-band reddening 103-107 F5.2 mag Bmag ?=0 B-band magnitude from RC3 (VII/155) 109-113 F5.2 mag Kmag 2MASS Ks band magnitude 115-119 I5 km/s HV [-525/29046] Heliocentric Velocity 121-125 I5 km/s GV Galactic reference frame Velocity 127-131 I5 km/s Vls Local Sheet reference frame Velocity 133-137 I5 km/s Vcmb CMB reference frame Velocity 139-143 I5 km/s Vcmba Adjusted CMB reference frame Velocity (3) 145-154 A10 --- Name Galaxy common name 156-159 I4 --- Group [0/2941]? Bookkeeping group number (preferred group identifier) 161-164 I4 --- 2M++ [0/4682]? Alternate group identification (G1) 166-168 I3 --- N1 [1/160] Number of galaxies in group with measured distances 170-175 F6.2 Mpc <Dist> Weighted average group distance 177-181 F5.2 mag <DM> Weighted average group distance modulus 183-187 F5.3 --- <Err> ? Weighted average group fractional distance error 189-191 I3 --- N2 [1/224]? Number of galaxies in group with known positions and velocities 193-200 F8.4 deg GGLON ? Group Galactic longitude 202-209 F8.4 deg GGLAT ? Group Galactic latitude 211-218 F8.4 deg GSGLON ? Group Supergalactic longitude 220-227 F8.4 deg GSGLAT ? Group Supergalactic latitude 229-230 I2 --- GMT [-5/20]? Mean morphological type of group 232-236 F5.2 mag <Bmag> ? Summed group RC3 B band magnitude 238-242 F5.2 mag <Kmag> ? Summed group 2MASS Ks band magnitude 244-248 I5 km/s <HV> ? Group Heliocentric Velocity 250-254 I5 km/s <GV> ? Group Galactic reference frame Velocity 256-260 I5 km/s <Vls> ? Group Local Sheet reference frame Velocity 262-266 I5 km/s <Vcmb> Group CMB reference frame Velocity 268-272 I5 km/s <Vcmba> Group adjusted CMB reference frame Velocity (3) 274-277 I4 km/s sigma ? RMS group velocity dispersion 279-285 I7 --- PGCb [218/2807110]? PGC ID of brightest group member 287-301 A15 --- GName Alternate group/cluster name
Note (1): Weighted average values are given if there are multiple sources. Note (2): Letter indicates distance determined by that method as follows: C = Cepheid Period-Luminosity Relation (PLR) distance; T = Tip of the Red Giant Branch (TRGB) from this program distance (see Section 2 for details); L = Tip of the Red Giant Branch (TRGB) from literature distance (see Section 2 for details); M = Miscellaneous (RR Lyr, horizontal branch, eclipsing binary, maser) distance; S = Surface Brightness Fluctuation (SBF) method (Tonry et al., 2001ApJ...546..681T); Blakeslee et al., 2010ApJ...724..657B); N = Type Ia supernovae (SNIa) distance; H = Tully-Fisher relation (TFR) distance (see Section 3 for details); F = fundamental plane (FP) method (Djorgovski & Davis, 1987ApJ...313...59D; Dressler et al., 1987ApJ...313...42D). Note (3): Adjusted for cosmological effectes with Ωm=0.27 and ΩΛ=0.73.
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 3 I3 --- N1 [1/160] Number of galaxies in group with measured distances 5- 10 F6.2 Mpc <Dist> Weighted average group distance 12- 16 F5.2 mag <DM> Weighted average group distance modulus 18- 21 F4.2 --- <Err> Weighted average group fractional distance error 23- 25 I3 --- N2 [1/224] Number of galaxies in group with known positions and velocities 27- 34 F8.4 deg GLON Group Galactic longitude 36- 43 F8.4 deg GLAT Group Galactic latitude 45- 52 F8.4 deg SGLON Group Supergalactic longitude 54- 61 F8.4 deg SGLAT Group Supergalactic latitude 63- 64 I2 --- GMT [-5/20] Mean morphological type of group 66- 70 F5.2 mag <Bmag> Summed group 3rd Reference Catalogue (RC3, cat. VII/155)B band magnitude 72- 76 F5.2 mag <Kmag> Summed group 2MASS Ks band magnitude 78- 82 I5 km/s <HV> Group Heliocentric Velocity 84- 88 I5 km/s <GV> Group Galactic reference frame Velocity 90- 94 I5 km/s <Vls> Group Local Sheet reference frame Velocity 96-100 I5 km/s <Vcmb> Group CMB reference frame Velocity 102-106 I5 km/s <Vcmba> Group adjusted CMB reference frame Velocity (1) 108-111 I4 km/s sigma RMS group velocity dispersion 113-118 I6 km/s <PV> Group Peculiar Velocity (2) 120-124 I5 km/s <PVa> Adjusted Group Peculiar Velocity (3) 126-129 I4 --- Group [0/2941] Bookkeeping group number (preferred group identifier) 131-134 I4 --- 2M++ [0/4682] Alternate group identification (G1) 136-142 I7 --- PGCb [0/9003144] PGC number of brightest group member 144-153 A10 --- GName Alternate group/cluster name
Note (1): Adjustment for cosmological model (Ωm=0.27, flat topology) as given by Eq. 14. Note (2): GPV=Vmod-H0d assuming H0=74.4km/s/Mpc. Note (3): Adjusted for the distance measurement error bias (only differs from value in previous column if negative).
Global notes: Note (G1): From Lavaux et al. (2011, cat. J/MNRAS/416/2840).
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Sylvain Guehenneux [CDS] 10-Jul-2014
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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