Galaxy cluster SMACS J0723.3−7327 mass distribution model improved based on new telescope data
At a Glance
Section titled “At a Glance”| Metadata | Details |
|---|---|
| Publication Date | 2022-08-01 |
| Journal | Zenodo (CERN European Organization for Nuclear Research) |
| Authors | Michael D. Gregory |
Abstract
Section titled “Abstract”Utilizing the primary science image released by the James Webb Space Telescope (JWST) this month, an international team of researchers with significant contribution from the Technical University of Munich (TUM) has constructed an improved model for the mass distribution of the galaxy cluster SMACS J0723.3−7327. Acting as a purported gravitational focal point, the foreground galaxy cluster produces both various images of background galaxies and magnifies these images. One family of such numerous images belongs to a galaxy, which the model predicts to be at a distance of about 13 Gyrs, i.e., whose light traveled exactly 13 billion years before reaching the telescope.\n\nThe primary science image released by the James Webb Space Telescope (JWST) was of a gravitational focal point, in particular the galaxy cluster SMACS J0723.3−7327. Gravitational focal points, especially galaxy clusters, magnify the light from background galaxies and produce different images of these. Before JWST, 19 various images of six background sources were known in SMACS J0723.3−7327. The JWST data currently revealed 27 additional different images from another ten lensed sources.\n\n”In this initial move towards the road opened by JWST, we utilized late data from this brand new telescope, to model the lensing impact of SMACS0723 with great accuracy,” brings up Gabriel Bartosch Caminha, postdoc individual at TUM, the Max Planck Institute for Astrophysics (MPA) and the German Center for Cosmological Lensing (GCCL). The collaboration initially utilized data from the Hubble Space Telescope (HST) and Multi Unit Spectroscopic Explorer (MUSE) to fabricate a “pre-JWST” focal point model, and then refined it with newly available JWST near-infrared imaging. “The JWST imaging is absolutely astounding and beautiful, showing many all the more increase lensed background sources, which allowed us to substantially refine our focal point mass model,” he adds.\n\nMany of these new, lensed sources don’t yet have distance estimates, and the researchers utilized their mass model to foresee how far away these lensed galaxies are probably going to be. One of them was viewed as probably at the amazing distance of 13 Gyrs (redshift > 7.5), for example its light was transmitted during the universe’s early stages. This galaxy is duplicate lensed into three images and its radiance is magnified by a factor of μ≈20 altogether.\n\nhttps://issuu.com/bigvu-premium-apk-latest-version\n\nhttps://issuu.com/chikii-mod-apk-vip-unlocked-latest\n\nhttps://issuu.com/gostream-mod-apk-without-watermark-2022\n\nhttps://issuu.com/godus-mod-apk-2022-unlimited-gems\n\nhttps://issuu.com/litmatch-mod-apk-unlimited-diamond-2022\n\nhttps://issuu.com/questland-mod-apk-unlimited-money-gems\n\nhttps://issuu.com/eatventure-mod-apk-unlimited-money-gems\n\nhttps://issuu.com/tocalifeworldmodapkallunlocked2022\n\nhttps://issuu.com/hack-dragon-city-99-999-gems-2022-apk\n\nhttps://issuu.com/pk-xd-hack-unlimited-999-999-coins-gems\n\nHowever, to concentrate on these primordial articles, it is fundamental to portray accurately the lensing impact of the foreground galaxy cluster. “Our accurate mass model forms the foundation for the exploration of the JWST data,” emphasizes Sherry Suyu, Professor of Observational Cosmology at TUM, Max Planck Research Group Leader at MPA and a Visiting Scholar at the Academia Sinica Institute of Astronomy and Astrophysics. “The spectacular JWST images show a great variety of strongly lensed galaxies, which can be concentrated on exhaustively thanks to our accurate model.”\n\nThe new model for the mass distribution of the foreground cluster is capable of repeating the positions of all numerous images with a high accuracy, making the model one of the most reliable available. For follow-up investigations of these sources, the focal point models, including magnification maps and redshifts (i.e., distances) estimated from the model are made openly available. “We are extremely amped up for this,” Suyu adds. “We are eagerly awaiting future JWST observations of other strong lensing galaxy clusters. These won’t only allow us to more readily constrain the mass distributions of galaxy clusters, yet in addition to concentrate on high-redshift galaxies.”