2019A&A...631A...9B


C.D.S. - SIMBAD4 rel 1.7 - 2020.04.08CEST22:04:22

2019A&A...631A...9B - Astronomy and Astrophysics, volume 631A, 9-9 (2019/11-1)

The OTELO survey. I. Description, data reduction, and multi-wavelength catalogue.

BONGIOVANNI A., RAMON-PEREZ M., PEREZ GARCIA A.M., CEPA J., CERVINO M., NADOLNY J., PEREZ MARTINEZ R., ALFARO E., CASTANEDA H.O., DE DIEGO J.A., EDEROCLITE A., FERNANDEZ-LORENZO M., GALLEGO J., GONZALEZ J.J., GONZALEZ-SERRANO J.I., LARA-LOPEZ M.A., OTEO-GOMEZ I., PADILLA TORRES C.P., PINTOS-CASTRO I., POVIC M., SANCHEZ-PORTAL M., JONES H., BLAND-HAWTHORN J. and CABRERA-LAVERS A.

Abstract (from CDS):


Context. The evolution of galaxies through cosmic time is studied observationally by means of extragalactic surveys. The usefulness of these surveys is greatly improved by increasing the cosmological volume, in either depth or area, and by observing the same targets in different wavelength ranges. A multi-wavelength approach using different observational techniques can compensate for observational biases.
Aims. The OTELO survey aims to provide the deepest narrow-band survey to date in terms of minimum detectable flux and emission line equivalent width in order to detect the faintest extragalactic emission line systems. In this way, OTELO data will complements other broad-band, narrow-band, and spectroscopic surveys.
Methods. The red tunable filter of the OSIRIS instrument on the 10.4m Gran Telescopio Canarias (GTC) is used to scan a spectral window centred at 9175Å, which is free from strong sky emission lines, with a sampling interval of 6Å and a bandwidth of 12Å in the most deeply explored EGS region. Careful data reduction using improved techniques for sky ring subtraction, accurate astrometry, photometric calibration, and source extraction enables us to compile the OTELO catalogue. This catalogue is complemented with ancillary data ranging from deep X-ray to far-infrared, including high resolution HST images, which allow us to segregate the different types of targets, derive precise photometric redshifts, and obtain the morphological classification of the extragalactic objects detected.
Results. The OTELO multi-wavelength catalogue contains 11 237 entries and is 50% complete at AB magnitude 26.38. Of these sources, 6600 have photometric redshifts with an uncertainty δ zphot better than 0.2 (1+zphot). A total of 4336 of these sources correspond to preliminary emission line candidates, which are complemented by 81 candidate stars and 483 sources that qualify as absorption line systems. The OTELO survey results will be released to the public on the second half of 2019.

Abstract Copyright: © ESO 2019

Journal keyword(s): techniques: imaging spectroscopy - surveys - quasars: emission lines - galaxies: statistics

Nomenclature: OTELO NNNNN N=9900 among (Nos 1-11237).

CDS comments: Fig.1 calibrator stars EGS 125 and EGS 129 not in SIMBAD.

Simbad objects: 4

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Number of rows : 4

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 Hubble Deep Field reg 12 36 49.5 +62 12 58           ~ 1820 1
2 NAME Subaru Deep Field NGP reg 13 24 21.3 +27 29 23           ~ 300 1
3 NAME Extended Groth Strip reg 14 19 +52.8           ~ 571 0
4 HD 126511 PM* 14 24 48.9418346124 +41 16 30.392124985       7.9   G5 42 0

    Equat.    Gal    SGal    Ecl

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2020.04.08-22:04:22

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