2019MNRAS.489.5301C

Query : 2019MNRAS.489.5301C

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

goto Full paper

goto View the references in ADS

Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 2MASS J22271087-0045471 BD* 22 27 10.913 -00 45 47.31           L7.0 17 0

Query : 2019MNRAS.489.5301C

Basic data :
2MASS J22271087-0045471 -- Brown Dwarf
Other object types: otypes_help 		BD* (2014MNRAS,BRLT), NIR (2MASS,ULAS), MIR (WISEA,WISE)
ICRS coord. (ep=J2000) : 		22 27 10.913 -00 45 47.31 (Near-IR) [ ] C 2013yCat.2319....0L
FK4 coord. (ep=B1950 eq=1950) : 		22 24 36.726 -01 01 06.28 [ ]
Gal coord. (ep=J2000) : 		064.147712 -46.505466 [ ]
Spectral type: 		L7.0 C 2015MNRAS.449.3651M
Fluxes (3) :
J 18.12 [0.06] C 2013yCat.2319....0L
H 16.616 [0.029] C 2013yCat.2319....0L
K 15.322 [0.017] C 2013yCat.2319....0L
SIMBAD within arcmin
Overlay Simbad points in this preview
Back
All CDSPortal (CDSPortal)
Send to sendBySAMP sendBySAMP
sedIcon
within arcsec sed-help-icon

Identifiers (6) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

2MASS J22271087-0045471 TIC 176058376 WISEA J222710.94-004547.6
BRLT 309 ULAS J222710.91-004547.3 WISE J222710.94-004547.4

References (17 between 1850 and 2026) (Total 17)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
Follow new references on this object
                Reference summaries :

                from: to:

                 or select by : (not exhaustive, explanation here)

Collections of Measurements Description of Measurements

SpT : 1   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : 2MASS J22271087-0045471

Link by name to the catalogue in VizieR :

2MASS J22271087-0045471 ULAS J222710.91-004547.3 WISEA J222710.94-004547.6 WISE J222710.94-004547.4

Search by coordinates in Vizier (radius: 5 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

The annotation server is currently not available. Sorry for any inconvenience

To bookmark this query, right click on this link: simbad:objects in 2019MNRAS.489.5301C and select 'bookmark this link' or equivalent in the popup menu