NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-25 T20:56:03 PDT
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For refcode 2016A&A...596A..14S:
There are 159853 NED objects in this reference.
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Copyright by European Southern Observatory (ESO). Reproduced by permission
2016A&A...596A..14S The matter distribution in the local Universe as derived from galaxy groups in SDSS DR12 and 2MRS Saulder, Christoph; van Kampen, Eelco; Chilingarian, Igor V.; Mieske, Steffen; Zeilinger, Werner W. Abstract. Context. Friends-of-friends algorithms are a common tool to detect galaxy groups and clusters in large survey data. In order to be as precise as possible, they have to be carefully calibrated using mock catalogues. Aims: We create an accurate and robust description of the matter distribution in the local Universe using the most up-to-date available data. This will provide the input for a specific cosmological test planned as follow-up to this work, and will be useful for general extragalactic and cosmological research. Methods: We created a set of galaxy group catalogues based on the 2MRS and SDSS DR12 galaxy samples using a friends-of-friends based group finder algorithm. The algorithm was carefully calibrated and optimised on a new set of wide-angle mock catalogues from the Millennium simulation, in order to provide accurate total mass estimates of the galaxy groups taking into account the relevant observational biases in 2MRS and SDSS. Results: We provide four different catalogues: (i) a 2MRS based group catalogue; (II) an SDSS DR12 based group catalogue reaching out to a redshift z = 0.11 with stellar mass estimates for 70% of the galaxies; (III) a catalogue providing additional fundamental plane distances for all groups of the SDSS catalogue that host elliptical galaxies; (IV) a catalogue of the mass distribution in the local Universe based on a combination of our 2MRS and SDSS catalogues. Conclusions: While motivated by a specific cosmological test, three of the four catalogues that we produced are well suited to act as reference databases for a variety of extragalactic and cosmological science cases. Our catalogue of fundamental plane distances for SDSS groups provides further added value to this paper. The full catalogues (Tables A.1 to A.8) are only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (http://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/596/A14 Key words: galaxies: clusters: general, galaxies: distances and redshifts, large-scale structure of Universe, galaxies: statistics
There are 159853 NED objects in this reference.
Please click here for ADS abstract

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