2014A&A...563A.142B


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.13CEST08:18:13

2014A&A...563A.142B - Astronomy and Astrophysics, volume 563A, 142-142 (2014/3-1)

Deep R-band counts of z ≃ 3 Lyman-break galaxy candidates with the LBT.

BOUTSIA K., GRAZIAN A., GIALLONGO E., CASTELLANO M., PENTERICCI L., FONTANA A., FIORE F., GALLOZZI S., CUSANO F., PARIS D., SPEZIALI R. and TESTA V.

Abstract (from CDS):

We present a deep multiwavelength imaging survey (UGR) in 3 different fields, Q0933, Q1623, and COSMOS, for a total area of ∼1500-arcmin2. The data were obtained with the Large Binocular Camera on the Large Binocular Telescope. To select our Lyman-break galaxy (LBG) candidates, we adopted the well established and widely used color-selection criterion (U-G vs. G-R). One of the main advantages of our survey is that it has a wider dynamic color range for U-dropout selection than in previous studies. This allows us to fully exploit the depth of our R-band images, obtaining a robust sample with few interlopers. In addition, for 2 of our fields we have spectroscopic redshift information that is needed to better estimate the completeness of our sample and interloper fraction. Our limiting magnitudes reach 27.0(AB) in the R band (5σ) and 28.6(AB) in the U band (1σ). This dataset was used to derive LBG candidates at z≃3. We obtained a catalog with a total of 12264 sources down to the 50% completeness magnitude limit in the R band for each field. We find a surface density of ∼3 LBG candidates arcmin–2 down to R=25.5, where completeness is ≥95% for all 3 fields. This number is higher than the original studies, but consistent with more recent samples.

Abstract Copyright:

Journal keyword(s): surveys - catalogs - galaxies: high-redshift - galaxies: photometry - ultraviolet: galaxies

VizieR on-line data: <Available at CDS (J/A+A/563/A142): tablea1.dat tablea2.dat tablea3.dat>

Status at CDS:   Examining the need for a new acronym. // All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 2

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Number of rows : 2

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 2069 0
2 NAME NOAO Deep Wide Field reg 14 32 05.75 +34 16 47.5           ~ 324 0

    Equat.    Gal    SGal    Ecl

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2020.07.13-08:18:13

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