LCRSCAT ivo://nasa.heasarc/lcrscat NASA/GSFC HEASARC Shectman et al. 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source The Las Campanas Redshift Survey (LCRS) consists of 26,418 redshifts of galaxies selected from a CCD-based catalog obtained in the R band. The survey covers over 700 deg<sup>2</sup> in six strips, each 1.5 x 80 degrees, three each in the north and south Galactic caps. The median redshift in the survey is about 30,000 km s<sup>-1</sup>. Essential features of the galaxy selection and redshift measurement methods are described and tabulated in the reference paper. These details are important for subsequent analysis of the LCRS data. Two-dimensional representations of the redshift distributions reveal many repetitions of voids, on the scale of about 5000 km s<sup>-1</sup>, sharply bounded by large walls of galaxies as seen in nearby surveys. Statistical investigations of the mean galaxy properties and of clustering on the large scale are reported elsewhere. These include studies of the luminosity function, power spectrum in two and three dimensions, correlation function, pairwise velocity distribution, identification of large-scale structures, and a group catalog. This table contains entries for 94959 objects from the LCRS for which photometric data were obtained and which were initially classified as galaxies on the basis of this photometric information, although subsequent spectroscopy indicated that a small fracton of them are actually stars. There are 27021 objects out of this total which have spectroscopic redshift information (either of themselves or of a nearby object). See also the LCRS home pages at: <a href="http://qold.astro.utoronto.ca/~lin/lcrs.html">http://qold.astro.utoronto.ca/~lin/lcrs.html</a>. This table was created by the HEASARC in May 2010 based on the electronic version of Table 3 from the above reference which was obtained from the <a href="https://cdsarc.cds.unistra.fr/ftp/cats/VII/203">CDS Catalog VII/203</a> file catalog.dat. This is a service provided by NASA HEASARC . 1996ApJ...470..172S https://heasarc.gsfc.nasa.gov/W3Browse/all/lcrscat.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=lcrscat& GET text/xml 180 99999 true 69.33140029 -45.62467469 0.0166666666666667 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=lcrscat GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_lcrscat&Action=More+Options&Action=Parameter+Search&ConeAdd=1 GALAXY CATALOG 0.0166666666666667 Optical public lcrscat Las Campanas Redshift Survey Catalog field_name Field Designation meta.id;obs.field char nullable name Catalog-Based Source Designation meta.id;meta.main char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable dec Declination degree pos.eq.dec;meta.main double nullable isophotal_mag Isophotal Magnitude mag phot.mag;em.opt.R double nullable central_mag Central Magnitude mag phot.mag;em.opt.R double nullable radial_velocity Heliocentric Velocity (km/s) km/s spect.dopplerVeloc int nullable radial_velocity_error RMS Uncertainty for Heliocentric Velocity (km/s) km/s stat.error;spect.dopplerVeloc short nullable "__x_ra_dec" System unit vector column double nullable "__y_ra_dec" System unit vector column double nullable "__z_ra_dec" System unit vector column double nullable "__row" System index column char nullable drift_scan Designation of Drift Scan Used to Obtain Object Photometry meta.id;obs.field char nullable broad_type Spectrum Type src.class char nullable phot_cat_obj_num Photometric Catalog Object Number meta.id double nullable gsf_product Same as SF but Sampling Fraction Computed Only in 1000-arcsec Radius of Galaxy stat.fit.param double nullable bii Galactic Latitude degree pos.galactic.lat double nullable spect_fiber Spectroscopic Fiber Name meta.id;obs.param char nullable sf_product Product of Sampling Fraction, App.Mag. and Surf. Brightness Completeness Factors stat.fit.param double nullable lii Galactic Longitude degree pos.galactic.lon double nullable class Browse Object Classification src.class short nullable nearby_radial_velocity Instr. Constraints Prevent 2 Obj. Fibers from Approaching Closer Than 55-arcsec km/s spect.dopplerVeloc int nullable