2018ApJS..235...33D

Query : 2018ApJS..235...33D

2018ApJS..235...33D - Astrophys. J., Suppl. Ser., 235, 33-33 (2018/April-0)

Dark Energy Survey year 1 results: the photometric data set for cosmology.

DRLICA-WAGNER A., SEVILLA-NOARBE I., RYKOFF E.S., GRUENDL R.A., YANNY B., TUCKER D.L., HOYLE B., CARNERO ROSELL A., BERNSTEIN G.M., BECHTOL K., BECKER M.R., BENOIT-LEVY A., BERTIN E., CARRASCO KIND M., DAVIS C., DE VICENTE J., DIEHL H.T., GRUEN D., HARTLEY W.G., LEISTEDT B., LI T.S., MARSHALL J.L., NEILSEN E., RAU M.M., SHELDON E., SMITH J., TROXEL M.A., WYATT S., ZHANG Y., ABBOTT T.M.C., ABDALLA F.B., ALLAM S., BANERJI M., BROOKS D., BUCKLEY-GEER E., BURKE D.L., CAPOZZI D., CARRETERO J., CUNHA C.E., D'ANDREA C.B., DA COSTA L.N., DEPOY D.L., DESAI S., DIETRICH J.P., DOEL P., EVRARD A.E., NETO A.F., FLAUGHER B., FOSALBA P., FRIEMAN J., GARCIA-BELLIDO J., GERDES D.W., GIANNANTONIO T., GSCHWEND J., GUTIERREZ G., HONSCHEID K., JAMES D.J., JELTEMA T., KUEHN K., KUHLMANN S., KUROPATKIN N., LAHAV O., LIMA M., LIN H., MAIA M.A.G., MARTINI P., McMAHON R.G., MELCHIOR P., MENANTEAU F., MIQUEL R., NICHOL R.C., OGANDO R.L.C., PLAZAS A.A., ROMER A.K., ROODMAN A., SANCHEZ E., SCARPINE V., SCHINDLER R., SCHUBNELL M., SMITH M., SMITH R.C., SOARES-SANTOS M., SOBREIRA F., SUCHYTA E., TARLE G., VIKRAM V., WALKER A.R., WECHSLER R.H., ZUNTZ J. (The DES Collaboration)

Abstract (from CDS):

We describe the creation, content, and validation of the Dark Energy Survey (DES) internal year-one cosmology data set, Y1A1 GOLD, in support of upcoming cosmological analyses. The Y1A1 GOLD data set is assembled from multiple epochs of DES imaging and consists of calibrated photometric zero-points, object catalogs, and ancillary data products-e.g., maps of survey depth and observing conditions, star-galaxy classification, and photometric redshift estimates-that are necessary for accurate cosmological analyses. The Y1A1 GOLD wide-area object catalog consists of ∼137 million objects detected in co-added images covering ∼1800°2 in the DES grizY filters. The 10σ limiting magnitude for galaxies is g=23.4, r=23.2, i=22.5, z=21.8, and Y=20.1. Photometric calibration of Y1A1 GOLD was performed by combining nightly zero-point solutions with stellar locus regression, and the absolute calibration accuracy is better than 2% over the survey area. DES Y1A1 GOLD is the largest photometric data set at the achieved depth to date, enabling precise measurements of cosmic acceleration at z <= 1.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): catalogs - cosmology: observations - surveys - techniques: image processing - techniques: photometric

Simbad objects: 9

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Number of rows : 9
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 WG 7 WD* 03 09 47.9177537304 -56 23 49.411222764   13.99 14.14 14.42   DB 55 0
2 NGC 1261 GlC 03 12 16.21 -55 12 58.4     8.63     ~ 520 0
3 UCAC3 125-8171 * 03 32 32.8728703992 -27 51 48.339287532 18.74 18.0893 16.64   17.0383 ~ 33 0
4 NGC 1851 GlC 05 14 06.76 -40 02 47.6           ~ 1428 0
5 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17418 0
6 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 2967 0
7 LAWD 87 WD* 21 32 16.2327040616 +00 15 14.399267982 13.717 14.634 14.674 14.675 14.676 DB4 185 1
8 M 2 GlC 21 33 27.02 -00 49 23.7     6.25     ~ 1030 1
9 BD+17 4708 SB* 22 11 31.3756832854 +18 05 34.177983548 9.73 9.91 9.46 9.03 8.70 sdF8 569 0

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