2019AJ....157..168D

Query : 2019AJ....157..168D

2019AJ....157..168D - Astron. J., 157, 168-168 (2019/May-0)

Overview of the DESI Legacy Imaging Surveys.

DEY A., SCHLEGEL D.J., LANG D., BLUM R., BURLEIGH K., FAN X., FINDLAY J.R., FINKBEINER D., HERRERA D., JUNEAU S., LANDRIAU M., LEVI M., McGREER I., MEISNER A., MYERS A.D., MOUSTAKAS J., NUGENT P., PATEJ A., SCHLAFLY E.F., WALKER A.R., VALDES F., WEAVER B.A., YECHE C., ZOU H., ZHOU X., ABARESHI B., ABBOTT T.M.C., ABOLFATHI B., AGUILERA C., ALAM S., ALLEN L., ALVAREZ A., ANNIS J., ANSARINEJAD B., AUBERT M., BEECHERT J., BELL E.F., BENZVI S.Y., BEUTLER F., BIELBY R.M., BOLTON A.S., BRICENO C., BUCKLEY-GEER E.J., BUTLER K., CALAMIDA A., CARLBERG R.G., CARTER P., CASAS R., CASTANDER F.J., CHOI Y., COMPARAT J., CUKANOVAITE E., DELUBAC T., DE VRIES K., DEY S., DHUNGANA G., DICKINSON M., DING Z., DONALDSON J.B., DUAN Y., DUCKWORTH C.J., EFTEKHARZADEH S., EISENSTEIN D.J., ETOURNEAU T., FAGRELIUS P.A., FARIHI J., FITZPATRICK M., FONT-RIBERA A., FULMER L., GANSICKE B.T., GAZTANAGA E., GEORGE K., GERDES D.W., GONTCHO A GONTCHO S., GORGONI C., GREEN G., GUY J., HARMER D., HERNANDEZ M., HONSCHEID K., HUANG L., JAMES D.J., JANNUZI B.T., JIANG L., JOYCE R., KARCHER A., KARKAR S., KEHOE R., KNEIB J.-P., KUETER-YOUNG A., LAN T.-W., LAUER T.R., LE GUILLOU L., LE VAN SUU A., LEE J.H., LESSER M., PERREAULT LEVASSEUR L., LI T.S., MANN J.L., MARSHALL R., MARTINEZ-VAZQUEZ C.E., MARTINI P., DU MAS DES BOURBOUX H., McMANUS S., MEIER T.G., MENARD B., METCALFE N., MUNOZ-GUTIERREZ A., NAJITA J., NAPIER K., NARAYAN G., NEWMAN J.A., NIE J., NORD B., NORMAN D.J., OLSEN K.A.G., PAAT A., PALANQUE-DELABROUILLE N., PENG X., POPPETT C.L., POREMBA M.R., PRAKASH A., RABINOWITZ D., RAICHOOR A., REZAIE M., ROBERTSON A.N., ROE N.A., ROSS A.J., ROSS N.P., RUDNICK G., SAFONOVA S., SAHA A., SANCHEZ F.J., SAVARY E., SCHWEIKER H., SCOTT A., SEO H.-J., SHAN H., SILVA D.R., SLEPIAN Z., SOTO C., SPRAYBERRY D., STATEN R., STILLMAN C.M., STUPAK R.J., SUMMERS D.L., TIE S.S., TIRADO H., VARGAS-MAGANA M., VIVAS A.K., WECHSLER R.H., WILLIAMS D., YANG J., YANG Q., YAPICI T., ZARITSKY D., ZENTENO A., ZHANG K., ZHANG T., ZHOU R. and ZHOU Z.

Abstract (from CDS):

The DESI Legacy Imaging Surveys (http://legacysurvey.org/) are a combination of three public projects (the Dark Energy Camera Legacy Survey, the Beijing-Arizona Sky Survey, and the Mayall z-band Legacy Survey) that will jointly image ≃14,000 deg2 of the extragalactic sky visible from the northern hemisphere in three optical bands (g, r, and z) using telescopes at the Kitt Peak National Observatory and the Cerro Tololo Inter-American Observatory. The combined survey footprint is split into two contiguous areas by the Galactic plane. The optical imaging is conducted using a unique strategy of dynamically adjusting the exposure times and pointing selection during observing that results in a survey of nearly uniform depth. In addition to calibrated images, the project is delivering a catalog, constructed by using a probabilistic inference-based approach to estimate source shapes and brightnesses. The catalog includes photometry from the grz optical bands and from four mid-infrared bands (at 3.4, 4.6, 12, and 22 µm) observed by the Wide-field Infrared Survey Explorer satellite during its full operational lifetime. The project plans two public data releases each year. All the software used to generate the catalogs is also released with the data. This paper provides an overview of the Legacy Surveys project.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): catalogs - surveys

Simbad objects: 6

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Number of rows : 6
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 NGC 2782 Sy2 09 14 05.1 +40 06 49 12.29 12.30 11.63     ~ 472 3
2 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 2974 0
3 UGC 10321 GrG 16 18 05.65 +21 33 18.9   15.5       ~ 8 0
4 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 2116 0
5 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 14415 0
6 NGC 6742 PN 18 59 20.030 +48 27 55.24     16.567     O(H)III-V 60 0

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