SIMBAD references

2019MNRAS.489.5301C - Mon. Not. R. Astron. Soc., 489, 5301-5325 (2019/November-2)

Brown dwarf census with the Dark Energy Survey year 3 data and the thin disc scale height of early L types.

CARNERO ROSELL A., SANTIAGO B., DAL PONTE M., BURNINGHAM B., DA COSTA L.N., JAMES D.J., MARSHALL J.L., McMAHON R.G., BECHTOL K., DE PARIS L., LI T., PIERES A., GARCIA-BELLIDO J., ABBOTT T.M.C., ANNIS J., AVILA S., BERNSTEIN G.M., BROOKS D., BURKE D.L., CARRASCO KIND M., CARRETERO J., DE VICENTE J., DRLICA-WAGNER A., FOSALBA P., FRIEMAN J., GAZTANAGA E., GRUENDL R.A., GSCHWEND J., GUTIERREZ G., HOLLOWOOD D.L., MAIA M.A.G., MENANTEAU F., MIQUEL R., PLAZAS A.A., ROODMAN A., SANCHEZ E., SCARPINE V., SCHINDLER R., SERRANO S., SEVILLA-NOARBE I., SMITH M., SOBREIRA F., SOARES-SANTOS M., SUCHYTA E., SWANSON M.E.C., TARLE G., VIKRAM V., WALKER A.R. (The DES Collaboration)

Abstract (from CDS):

In this paper we present a catalogue of 11 745 brown dwarfs with spectral types ranging from L0 to T9, photometrically classified using data from the Dark Energy Survey (DES) year 3 release matched to the Vista Hemisphere Survey (VHS) DR3 and Wide-field Infrared Survey Explorer (WISE) data, covering ≃2400 deg2 up to iAB = 22. The classification method follows the same phototype method previously applied to SDSS-UKIDSS-WISE data. The most significant difference comes from the use of DES data instead of SDSS, which allow us to classify almost an order of magnitude more brown dwarfs than any previous search and reaching distances beyond 400 pc for the earliest types. Next, we also present and validate the GalmodBD simulation, which produces brown dwarf number counts as a function of structural parameters with realistic photometric properties of a given survey. We use this simulation to estimate the completeness and purity of our photometric LT catalogue down to iAB = 22, as well as to compare to the observed number of LT types. We put constraints on the thin disc scale height for the early L (L0-L3) population to be around 450 pc, in agreement with previous findings. For completeness, we also publish in a separate table a catalogue of 20 863 M dwarfs that passed our colour cut with spectral types greater than M6. Both the LT and the late M catalogues are found at DES release page https://des.ncsa.illinois.edu/releases/other/y3-mlt.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): techniques: photometric - catalogues - surveys - brown dwarfs - Galaxy: fundamental parameters - infrared: stars

VizieR on-line data: <Available at CDS (J/MNRAS/489/5301): desy3-lt.dat desy3-m.dat>

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

Simbad objects: 1

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