SIMBAD references

2008MNRAS.384.1178B - Mon. Not. R. Astron. Soc., 384, 1178-1188 (2008/March-1)

Transformations between 2MASS, SDSS and BVRI photometric systems: bridging the near-infrared and optical.

BILIR S., AK S., KARAALI S., CABRERA-LAVERS A., CHONIS T.S. and GASKELL C.M.

Abstract (from CDS):

We present colour transformations for the conversion of the Two Micron All Sky Survey (2MASS) photometric system to the Johnson-Cousins UBVRI system and further into the Sloan Digital Sky Survey (SDSS) ugriz system. We have taken SDSS gri magnitudes of stars measured with the 2.5-m telescope from SDSS Data Release 5 (DR5), and BVRI and JHK_s_ magnitudes from Stetson's catalogue and Cutri et al., respectively. We matched thousands of stars in the three photometric systems by their coordinates and obtained a homogeneous sample of 825 stars by the following constraints, which are not used in previous transformations: (1) the data are dereddened, (2) giants are omitted and (3) the sample stars selected are of the highest quality. We give metallicity, population type and transformations dependent on two colours. The transformations provide absolute magnitude and distance determinations which can be used in space density evaluations at short distances where some or all of the SDSS ugriz magnitudes are saturated. The combination of these densities with those evaluated at larger distances using SDSS ugriz photometry will supply accurate Galactic model parameters, particularly the local space densities for each population.

Abstract Copyright: © 2008 The Authors

Journal keyword(s): techniques: photometric - catalogues - surveys

VizieR on-line data: <Available at CDS (J/MNRAS/384/1178): table1.dat>

Nomenclature: Table 1: [BAK2008] Pal5-SNNN, [BAK2008] LNNN-SNNN, [BAK2008] PG HHMM-SNNN, [BAK2008] MNN-SNNNN, [BAK2008] Draco-SNNN, [BAK2008] Draco-Holtz-SNNN, [BAK2008] ANNNN-SNNNN, [BAK2008] LeoI-SNNNN, N=773. Table 1: Cl* NGC 2419 BAK DNN N=4 among (Nos D4-D24), Cl* NGC 4147 BAK DNN N=5 among (Nos D3-D16).

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

CDS comments: Table 1: Objects LNNN = SA NNN in SIMBAD.

Simbad objects: 53

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