Candels Multi-Wavelength Catalogs: Source Detection and Photometry in the Goods-South Field

Guo, Y.; Ferguson, Henry C.; Giavalisco, Mauro; Barro, Guillermo; Willner, S. P.; Ashby, M. L. N.; Dahlén, T.; Donley, J. L.; Faber, S. M.; Fontana, A.; Galametz, A.; Grazian, A.; Huang, Kuang-Han; Kocevski, Dale D.; Koekemoer, Anton M.; Koo, David C.; McGrath, Elizabeth J.; Peth, Michael; Salvato, M.; Wuyts, Stijn; Castellano, M.; Cooray, Asantha; Dickinson, Mark; Dunlop, James; Fazio, G. G.; Gardner, Jonathan P.; Gawiser, Eric; Grogin, Norman A.; Hathi, N. P.; Hsu, Li-Ting; Lee, Kyoung-Soo; Lucas, Ray A.; Mobasher, Bahram; Nandra, K.; Newman, J. A.; Wel, Arjen van der

doi:10.1088/0067-0049/207/2/24

Cited by 509 publications

(804 citation statements)

References 86 publications

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“…First, we used SExtractor (Bertin et al 1996) on the processed H160 image with a revised HOT+COLD approach (Galametz et al 2013;Guo et al 2013). We then added the additional objects detected in a median average of the Y105+ J125+ JH140+ H160 bands, which are undetected in the H band.…”

Section: Detection Catalogue and Hst Photometrymentioning

confidence: 99%

“…The magnified number counts are shown in Fig. 7 compared with total number counts from CANDELS GOODS-South (Guo et al 2013) and UDS (Galametz et al 2013) surveys normalized to FF area. For magnitudes brighter then H160 = 26 mag, the number counts are consistent with the CANDELS counts once magnification is taken into account and when sources with z phot within 0.1 the redshift of the relative cluster are removed.…”

Section: Demagnified Number Counts and Rest-frame Physical Propertiesmentioning

confidence: 99%

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The ASTRODEEP Frontier Fields catalogues

Criscienzo

Merlin

Castellano

et al. 2017

A&A

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Aims. We present the multiwavelength photometry of two Frontier Fields massive galaxy clusters, MACS-J0717 and MACS-J1149, and their parallel fields, ranging from Hubble Space Telescope (HST) to ground-based K and Spitzer IRAC bands, and the public release of photometric redshifts and rest-frame properties of galaxies found in cluster and parallel pointings. This work was carried out within the ASTRODEEP project and aims to provide a reference for future investigations of extragalactic populations. Methods. To fully exploit the depth of the images and detect faint sources, we used an accurate procedure, which carefully removes the foreground light of bright cluster sources and the intra-cluster light thus enabling detection and measurement of accurate fluxes in crowded cluster regions. This same procedure has been successfully used to derive the photometric catalogue of MACS-J0416 and Abell-2744. Results. The obtained multiband photometry was used to derive photometric redshifts, magnification, and physical properties of sources. In line with the first two FF catalogues released by ASTRODEEP, the photometric redshifts reach ∼4% accuracy. Moreover we extend the presently available samples to galaxies intrinsically as faint as H160 ∼ 32-34 mag thanks to the magnification factors induced by strong gravitational lensing. Our analysis allows us to probe galaxy masses larger than 10 7 M and/or SFR = 0.1-1 M /yr out to redshift z > 6.

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Section: Detection Catalogue and Hst Photometrymentioning

confidence: 99%

Section: Demagnified Number Counts and Rest-frame Physical Propertiesmentioning

confidence: 99%

The ASTRODEEP Frontier Fields catalogues

Criscienzo

Merlin

Castellano

et al. 2017

A&A

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“…The template-fitting approach has been demonstrated to work well for blank-field surveys such as CANDELS (Guo et al 2013), but it does require images with zero mean background. Most galaxy cluster fields have considerable spatial variations in local sky background, so subtracting a constant background does not generally work.…”

Section: Irac Data and Photometrymentioning

confidence: 99%

SPITZER ULTRA FAINT SURVEY PROGRAM (SURFS UP). II. IRAC-DETECTED LYMAN-BREAK GALAXIES AT 6 ≲ z ≲ 10 BEHIND STRONG-LENSING CLUSTERS

Huang

Bradač

Lemaux

et al. 2016

ApJ

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We study the stellar population properties of the IRAC-detected 6  z  10 galaxy candidates from the Spitzer UltRa Faint SUrvey Program. Using the Lyman Break selection technique, we find a total of 17 galaxy candidates at 6  z  10 from Hubble Space Telescope images (including the full-depth images from the Hubble Frontier Fields program for MACS 1149 and MACS 0717) that have detections at signal-to-noise ratios  3 in at least one of the IRAC 3.6 and 4.5 μm channels. According to the best mass models available for the surveyed galaxy clusters, these IRAC-detected galaxy candidates are magnified by factors of ∼1.2-5.5. Due to the magnification of the foreground galaxy clusters, the rest-frame UV absolute magnitudes M 1600 are between −21.2 and −18.9 mag, while their intrinsic stellar masses are between 2×10 8 M e and 2.9×10 9 M e . We identify two Lyα emitters in our sample from the Keck DEIMOS spectra, one at z Lyα =6.76 (in RXJ 1347) and one at z Lyα =6.32 (in MACS 0454). We find that 4 out of 17 z  6 galaxy candidates are favored by z  1 solutions when IRAC fluxes are included in photometric redshift fitting. We also show that IRAC [3.6]-[4.5] color, when combined with photometric redshift, can be used to identify galaxies which likely have strong nebular emission lines or obscured active galactic nucleus contributions within certain redshift windows.

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“…In order to obtain multiwavelength photometry for these galaxies, we cross-matched this sample with the public Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS; Grogin et al 2011;Koekemoer et al 2011) catalog for the Great Observatory Origins Deep Survey South field (GOODS-S) obtained by Guo et al (2013). This catalog contains photometry in 17 broadbands, from 0.37 through 8.0 μm, obtained with ground-and space-based telescopes, including HST and Spitzer (Ashby et al 2015).…”

Section: Samplementioning

confidence: 99%

The Impact of JWST Broadband Filter Choice on Photometric Redshift Estimation

Bisigello

Caputi

Colina

et al. 2016

ApJS

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The determination of galaxy redshifts in the James Webb Space Telescope's (JWST) blank-field surveys will mostly rely on photometric estimates, based on the data provided by JWST's Near-Infrared Camera (NIRCam) at 0.6-5.0 μm and Mid Infrared Instrument (MIRI) at l m > 5.0 m. In this work we analyze the impact of choosing different combinations of NIRCam and MIRI broadband filters (F070W to F770W), as well as having ancillary data at l m < 0.6 m, on the derived photometric redshifts (z phot ) of a total of 5921 real and simulated galaxies, with known input redshifts z=0-10. We found that observations at l m < 0.6 m are necessary to control the contamination of high-z samples by low-z interlopers. Adding MIRI (F560W and F770W) photometry to the NIRCam data mitigates the absence of ancillary observations at l m < 0.6 m and improves the redshift estimation. At z=7-10, accurate z phot can be obtained with the NIRCam broadbands alone when  S N 10, but the z phot quality significantly degrades at  S N 5. Adding MIRI photometry with 1 mag brighter depth than the NIRCam depth allows for a redshift recovery of 83%-99%, depending on spectral energy distribution type, and its effect is particularly noteworthy for galaxies with nebular emission. The vast majority of NIRCam galaxies with [F150W]=29AB mag at z=7-10 will be detected with MIRI at [F560W, F770W] < 28 mag if these sources are at least mildly evolved or have spectra with emission lines boosting the mid-infrared fluxes.

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Candels Multi-Wavelength Catalogs: Source Detection and Photometry in the Goods-South Field

Cited by 509 publications

References 86 publications

The ASTRODEEP Frontier Fields catalogues

The ASTRODEEP Frontier Fields catalogues

SPITZER ULTRA FAINT SURVEY PROGRAM (SURFS UP). II. IRAC-DETECTED LYMAN-BREAK GALAXIES AT 6 ≲ z ≲ 10 BEHIND STRONG-LENSING CLUSTERS

The Impact of JWST Broadband Filter Choice on Photometric Redshift Estimation

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