The Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS) is designed to document the first third of galactic evolution, over the approximate redshift (z) range 8-1.5. It will image >250,000 distant galaxies using three separate cameras on the Hubble Space Telescope, from the mid-ultraviolet to the near-infrared, and will find and measure Type Ia supernovae at z > 1.5 to test their accuracy as standardizable candles for cosmology. Five premier multi-wavelength sky regions are selected, each with extensive ancillary data. The use of five widely separated fields mitigates cosmic variance and yields statistically robust and complete samples of galaxies down to a stellar mass of 10(9)M(circle dot) to z approximate to 2, reaching the knee of the ultraviolet luminosity function of galaxies to z approximate to 8. The survey covers approximately 800 arcmin(2) and is divided into two parts. The CANDELS/Deep survey (5 sigma point-source limit H = 27.7 mag) covers similar to 125 arcmin(2) within Great Observatories Origins Deep Survey (GOODS)-N and GOODS-S. The CANDELS/Wide survey includes GOODS and three additional fields (Extended Groth Strip, COSMOS, and Ultra-deep Survey) and covers the full area to a 5 sigma point-source limit of H greater than or similar to 27.0 mag. Together with the Hubble Ultra Deep Fields, the strategy creates a three-tiered "wedding-cake" approach that has proven efficient for extragalactic surveys. Data from the survey are nonproprietary and are useful for a wide variety of science investigations. In this paper, we describe the basic motivations for the survey, the CANDELS team science goals and the resulting observational requirements, the field selection and geometry, and the observing design. The Hubble data processing and products are described in a companion paper.
- CANDELS: THE COSMIC ASSEMBLY NEAR-INFRARED DEEP EXTRAGALACTIC LEGACY SURVEY
- Norman A Grogin - Space Telescope Science InstituteDale D Kocevski - University of California, Santa CruzS. M Faber - University of California, Santa CruzHenry C Ferguson - Space Telescope Science InstituteAnton M Koekemoer - Space Telescope Science InstituteAdam G Riess - Johns Hopkins UniversityViviana Acquaviva - Rutgers, The State University of New JerseyDavid M Alexander - Durham UniversityOmar Almaini - University of NottinghamMatthew L. N Ashby - Harvard UniversityMarco Barden - Universität InnsbruckEric F Bell - University of Michigan–Ann ArborFrederic Bournaud - DSMThomas M Brown - Space Telescope Science InstituteKarina I Caputi - University of EdinburghStefano Casertano - Space Telescope Science InstitutePaolo Cassata - University of Massachusetts AmherstMarco Castellano - Osserv Astron Roma, INAF, I-00136 Rome, ItalyPeter Challis - Harvard UniversityRanga-Ram Chary - California Institute of TechnologyEdmond Cheung - University of California, Santa CruzMichele Cirasuolo - UK Astronomy Technology CentreChristopher J Conselice - University of NottinghamAsantha Roshan Cooray - University of California, IrvineDarren J Croton - Swinburne University of TechnologyEmanuele Daddi - DSMTomas Dahlen - Space Telescope Science InstituteRomeel Dave - University of ArizonaDuilia F de Mello - Catholic University of AmericaAvishai Dekel - Hebrew University of JerusalemMark Dickinson - Natl Opt Astron Observ, Tucson, AZ 85726 USATimothy Dolch - Johns Hopkins UniversityJennifer L Donley - Space Telescope Science InstituteJames S Dunlop - University of EdinburghAaron A Dutton - University of VictoriaDavid Elbaz - DSMGiovanni G Fazio - Harvard UniversityAlexei V Filippenko - University of California, BerkeleySteven L Finkelstein - Texas A&M UniversityAdriano Fontana - Osserv Astron Roma, INAF, I-00136 Rome, ItalyJonathan P Gardner - Goddard Space Flight CenterPeter M Garnavich - University of Notre DameEric Gawiser - Rutgers, The State University of New JerseyMauro Giavalisco - University of Massachusetts AmherstAndrea Grazian - Osserv Astron Roma, INAF, I-00136 Rome, ItalyYicheng Guo - University of Massachusetts AmherstNimish P Hathi - Carnegie Institution for ScienceBoris Haeussler - Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, EnglandPhilip F Hopkins - University of California, BerkeleyJia-Sheng Huang - Smithsonian Inst Astrophys Observ, Cambridge, MA USAKuang-Han Huang - Johns Hopkins UniversitySaurabh W Jha - Rutgers, The State University of New JerseyJeyhan S Kartaltepe - Natl Opt Astron Observ, Tucson, AZ 85726 USARobert P Kirshner - Harvard UniversityDavid C Koo - University of California, Santa CruzKamson Lai - University of California, Santa CruzKyoung-Soo Lee - Yale UniversityWeidong Li - University of California, BerkeleyJennifer M Lotz - Space Telescope Science InstituteRay A Lucas - Space Telescope Science InstitutePiero Madau - University of California, Santa CruzPatrick J McCarthy - Carnegie Institution for ScienceElizabeth J McGrath - University of California, Santa CruzDaniel H McIntosh - University of Missouri–Kansas CityRoss J McLure - University of EdinburghBahram Mobasher - University of California, RiversideLeonidas A Moustakas - California Institute of TechnologyMark Mozena - University of California, Santa CruzKirpal Nandra - Max Planck SocietyJeffrey A Newman - University of PittsburghSami-Matias Niemi - Space Telescope Science InstituteKai G Noeske - Space Telescope Science InstituteCasey J Papovich - Texas A&M UniversityLaura Pentericci - Osserv Astron Roma, INAF, I-00136 Rome, ItalyAlexandra Pope - University of Massachusetts AmherstJoel R Primack - University of California, Santa CruzAbhijith Rajan - Space Telescope Science InstituteSwara Ravindranath - Inter-University Centre for Astronomy and AstrophysicsNaveen A Reddy - University of California, RiversideAlvio Renzini - Osserv Astron Padova, Padua, ItalyHans-Walter Rix - Max Planck SocietyAday R Robaina - University of BarcelonaSteven A Rodney - Johns Hopkins UniversityDavid J Rosario - Max Planck SocietyPiero Rosati - European Southern ObservatorySara Salimbeni - University of Massachusetts AmherstClaudia Scarlata - University of MinnesotaBrian Siana - University of California, RiversideLuc Simard - National Academies of Sciences, Engineering, and MedicineJoseph Smidt - University of California, IrvineRachel S Somerville - Rutgers, The State University of New JerseyHyron Spinrad - University of California, BerkeleyAmber N Straughn - Goddard Space Flight CenterLouis-Gregory Strolger - Western Kentucky UniversityOlivia Telford - University of PittsburghHarry I Teplitz - California Institute of TechnologyJonathan R Trump - University of California, Santa CruzArjen van der Wel - Max Planck SocietyCarolin Villforth - Space Telescope Science InstituteRisa H Wechsler - Stanford UniversityBenjamin J Weiner - Univ Arizona, Dept Astron, Tucson, AZ USATommy Wiklind - ESO, ALMA, Santiago, ChileVivienne Wild - Univ Edinburgh, Inst Astron, Edinburgh, Midlothian, ScotlandGrant Wilson - Univ Massachusetts, Dept Astron, Amherst, MA 01003 USAStijn Wuyts - Max Planck Inst Extraterr Phys, D-37075 Garching, GermanyHao-Jing Yan - Univ Missouri, Dept Phys & Astron, Columbia, MO 65211 USAMin S Yun - Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA
- The Astrophysical journal. Supplement series, Vol.197(2), pp.35-jQuery1323919374223='48'
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