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SDSS galaxies and catalogs rework (#15)
* add SDSS skeleton * rm nb * update gitignore * add docs * add survey volume * add masking * add SDSS mask * add SDSS comments * add reference * rm * move planck to fits clusters * Rm comment * update masking routines * rm masks * Update docs * rm data * make MCXC fits surv * change MCXC name * Move to extrasapce * Update paths
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J/MNRAS/416/2840 The 2M++ galaxy redshift catalogue (Lavaux+, 2011)
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================================================================================
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The 2M++ galaxy redshift catalogue.
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Lavaux G., Hudson M.J.
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<Mon. Not. R. Astron. Soc., 416, 2840-2856 (2011)>
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=2011MNRAS.416.2840L
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================================================================================
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ADC_Keywords: Galaxy catalogs ; Infrared sources ; Redshifts
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Keywords: methods: data analysis - methods: numerical - methods: observational -
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catalogues - galaxies: luminosity function, mass function -
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large-scale structure of Universe
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Abstract:
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Peculiar velocities arise from gravitational instability, and thus
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are linked to the surrounding distribution of matter. In order to
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understand the motion of the Local Group with respect to the cosmic
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microwave background, a deep all-sky map of the galaxy distribution
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is required. Here we present a new redshift compilation of 69160
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galaxies, dubbed 2M++, to map large-scale structures of the local
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Universe over nearly the whole sky, and reaching depths of K<=12.5,
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or 200h^-1^Mpc. The target catalogue is based on the Two-Micron
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All-Sky Survey Extended Source Catalog (2MASS-XSC). The primary
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sources of redshifts are the 2MASS Redshift Survey, the 6dF galaxy
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redshift survey and the Sloan Digital Sky Survey (Data Release 7).
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We assess redshift completeness in each region and compute the weights
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required to correct for redshift incompleteness and apparent magnitude
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limits, and discuss corrections for incompleteness in the zone of
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avoidance. We present the density field for this survey, and discuss
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the importance of large-scale structures such as the Shapley
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Concentration.
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File Summary:
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--------------------------------------------------------------------------------
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FileName Lrecl Records Explanations
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--------------------------------------------------------------------------------
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ReadMe 80 . This file
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catalog.dat 140 72973 *The 2M++ catalogue
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group.dat 64 4002 The 2M++ group catalogue
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--------------------------------------------------------------------------------
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Note on catalog.dat: Number of real galaxies = 69160;
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Number of fake galaxies in ZoA = 3813; Number of groups = 4002.
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--------------------------------------------------------------------------------
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See also:
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VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)
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VII/249 : 6dF-DR2 Galaxy Survey (Jones+, 2005)
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II/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)
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VII/260 : The SDSS-DR7 quasar catalog (Schneider+, 2010)
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http://www.sdss.org : SDSS Home Page
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Byte-by-byte Description of file: catalog.dat
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--------------------------------------------------------------------------------
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Bytes Format Units Label Explanations
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--------------------------------------------------------------------------------
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3- 18 A16 --- Name Name of the galaxy as given in the 2MASS-XSC
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database (Cat. VII/233), or ZOA fake galaxy
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20- 25 F6.2 deg RAdeg Right Ascension in decimal degrees (J2000)
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27- 32 F6.2 deg DEdeg Declination in decimal degrees (J2000)
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34- 39 F6.2 deg GLON [0/360] Galactic longitude
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41- 46 F6.2 deg GLAT Galactic latitude
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48- 52 F5.2 mag Ksmag Apparent magnitude in band K_S as defined in
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Section 2.2.
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55- 59 I5 km/s HV Heliocentric total apparent velocity
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62- 66 I5 km/s Vcmb Total apparent velocity in CMB rest frame (G1)
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68- 73 I6 km/s e_HV ?=0 Total apparent velocity error
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(equal to zero if not measured)
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77- 80 I4 --- GID ? Unique group identifier obtained from the
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algorithm of Section 4.
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84- 87 F4.2 --- c11.5 Redshift incompleteness at magnitude
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K2M++<=11.5
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91- 94 F4.2 --- c12.5 ? Redshift incompleteness at magnitude
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KM2++<=12.5 (2)
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99 I1 --- ZoA [0/1] Flag to indicate whether this is is a
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fake galaxy to fill the zone of avoidance
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following the algorithm of Section 3.
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104 I1 --- Cln [0/1] Flag to indicate if the redshift has
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been obtained by the cloning procedure
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of Section 2.3.
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109 I1 --- M0 [0/1] Flag to indicate whether this galaxy
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lies in the exclusive region covered by the
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2MRS target mask (2Mx6S region)
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114 I1 --- M1 [0/1] Flag to indicate whether this galaxy
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lies in the non-exclusion region covered by
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the SDSS
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119 I1 --- M2 [0/1] Flag to indicate whether this galaxy
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lies in the non-exclusion region covered
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by the 6dFGRS
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122-140 A19 --- Ref Reference bibcode ("zoa" for fake galaxies
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in the Zone of Avoidance)
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--------------------------------------------------------------------------------
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Note (2): It may be empty in that case the catalogue is limited to K2M++<=11.5
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in the portion of the sky holding the galaxy.
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--------------------------------------------------------------------------------
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Byte-by-byte Description of file: group.dat
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--------------------------------------------------------------------------------
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Bytes Format Units Label Explanations
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--------------------------------------------------------------------------------
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7- 10 I4 --- GID Group identifier in the catalogue
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12- 17 F6.2 deg GLON Galactic longitude
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19- 24 F6.2 deg GLAT Galactic latitude
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27- 31 F5.2 mag K2mag Apparent magnitude K2M++ (1)
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40- 42 I3 --- Rich Richness uncorrected for incompleteness effect
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45- 49 I5 km/s HV Heliocentric total apparent velocity
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52- 56 I5 km/s Vcmb Total apparent velocity in CMB rest frame (G1)
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62- 64 I3 km/s sigma Velocity dispersion in the group
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--------------------------------------------------------------------------------
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Note (1): We define as K2M++ (K2mag) the magnitude of a galaxy measured in
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the K_S_ band, within the circular isophote at 20mag/arcsec^2^, after
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various corrections described in Section 2.2. The magnitude is derived
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from the 2M++ galaxies. This is a magnitude uncorrected for
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incompleteness effect.
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--------------------------------------------------------------------------------
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Global notes:
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Note (G1): using relation from Kogut et al. (1993ApJ...419....1K) and
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Tully et al. (2008, Cat. J/ApJ/676/184)
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--------------------------------------------------------------------------------
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History:
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From electronic version of the journal
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================================================================================
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(End) Patricia Vannier [CDS] 17-Apr-2012
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