RELICS: A Strong-lens Model of SMACS J0723.3-7327

Article Astronomy & Astrophysics

First JWST observations of a gravitational lens Mass model from new multiple images with near-infrared observations of SMACS J0723.3-7327

G. B. Caminha et al.

Summary: We present the lens mass model of SMACS J0723.3-7327, the first gravitational lens observed by JWST. The model accurately reproduces the positions of multiple lensed images and predicts redshifts of newly detected sources. This study provides crucial information for further studies and follow-up observations.

ASTRONOMY & ASTROPHYSICS (2022)

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Article Astronomy & Astrophysics

HST Strong-lensing Model for the First JWST Galaxy Cluster SMACS J0723.3-7327

Miriam Golubchik et al.

Summary: On July 8, 2022, NASA shared the list of five public showcase targets observed with the new James Webb Space Telescope (JWST), including the galaxy cluster SMACS J0723.3-7327. Researchers have published a strong-lensing model for SMACS J0723.3-7327, providing mass density and magnification maps. The model will be accessible on the RELICS website and will help improve mass models when incorporating the JWST data.

ASTROPHYSICAL JOURNAL (2022)

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Article Astronomy & Astrophysics

The JWST Early Release Observations

Klaus M. Pontoppidan et al.

Summary: The James Webb Space Telescope Early Release Observations are a set of public outreach products that demonstrate the readiness and capability of JWST for scientific research.

ASTROPHYSICAL JOURNAL LETTERS (2022)

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Article Astronomy & Astrophysics

Unscrambling the Lensed Galaxies in JWST Images behind SMACS 0723

Massimo Pascale et al.

Summary: The first deep field images from the James Webb Space Telescope (JWST) reveal new lensed images at uncharted infrared wavelengths, with unprecedented depth and resolution. These images provide opportunities for detailed research on the redshift, chemical abundances, and gas dynamics of distant galaxies. The study also found an Einstein cross candidate and evidence of past dynamical disturbances.

ASTROPHYSICAL JOURNAL LETTERS (2022)

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Article Astronomy & Astrophysics