Early Results from GLASS-JWST. II. NIRCam Extragalactic Imaging and Photometric Catalog

Creators: Merlin, Emiliano; Bonchi, Andrea; Paris, Diego; Belfiori, Davide; Fontana, Adriano; Castellano, Marco; Nonino, Mario; Polenta, Gianluca; Santini, Paola; Yang, Lilan; Glazebrook, Karl; Treu, Tommaso; Roberts-Borsani, Guido; Trenti, Michele; Birrer, Simon; Brammer, Gabriel; Grillo, Claudio; Calabrò, Antonello; Marchesini, Danilo; Mason, Charlotte; Mercurio, Amata; Morishita, Takahiro; Strait, Victoria; Boyett, Kristan; Leethochawalit, Nicha; Nanayakkara, Themiya; Vulcani, Benedetta; Bradac, Marusa; Wang, Xin

Abstract

We present the reduced images and multiwavelength catalog of the first JWST NIRCam extragalactic observations from the GLASS Early Release Science Program, obtained as coordinated parallels of the NIRISS observations of the Abell 2744 cluster. Images in seven bands (F090W, F115W, F150W, F200W, F277W, F356W, and F444W) have been reduced using an augmented version of the official JWST pipeline; we discuss the procedures adopted to remove or mitigate defects in the raw images. We obtain a multiband catalog by means of forced aperture photometry on point-spread function (PSF)-matched images at the position of F444W-detected sources. The catalog is intended to enable early scientific investigations, and it is optimized for faint galaxies; it contains 6368 sources, with limiting magnitude 29.7 at 5σ in F444W. We release both images and catalog in order to allow the community to become familiar with the JWST NIRCam data and evaluate their merit and limitations given the current level of knowledge of the instrument.

Additional Information

This work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with program JWST-ERS-1324. We acknowledge financial support from NASA through grant JWST-ERS-1324. This research is supported in part by the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), through project number CE170100013. K.G. and T.N. acknowledge support from Australian Research Council Laureate Fellowship FL180100060. M.B. acknowledges support from the Slovenian national research agency ARRS through grant N1-0238. We acknowledge financial support through grants PRIN-MIUR 2017WSCC32 and 2020SKSTHZ. C.M. acknowledges support by the VILLUM FONDEN under grant 37459. The Cosmic Dawn Center (DAWN) is funded by the Danish National Research Foundation under grant DNRF140. This work has made use of data from the European Space Agency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. The authors thank Paola Marrese and Silvia Marinoni (Space Science Data Center, Italian Space Agency) for their contribution to the work.

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Resource type: Journal Article
Publisher: American Astronomical Society
Published in: Astrophysical Journal Letters, 938(2), Art. No. L14, ISSN: 2041-8205.