Zobrazeno 1 - 10
of 109
pro vyhledávání: '"M. James Jee"'
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 2, p 79 (2024)
Abell 514 (A514) at z = 0.071 is an intriguing merging system exhibiting highly elongated (∼1 Mpc) X-ray features and three large-scale (300 ∼ 500 kpc) bent radio jets. To dissect this system with its multiwavelength data, it is critical to robus
Externí odkaz:
https://doaj.org/article/50e4464e945941178616b3ca1c354891
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 1, p 45 (2024)
The Transformer architecture has revolutionized the field of deep learning over the past several years in diverse areas, including natural language processing, code generation, image recognition, and time-series forecasting. We propose to apply Zamir
Externí odkaz:
https://doaj.org/article/991bfa98b7bd45d7b2f578ae297f790a
Autor:
Jaewon Yoo, Changbom Park, Cristiano G. Sabiu, Ankit Singh, Jongwan Ko, Jaehyun Lee, Christophe Pichon, M. James Jee, Brad K. Gibson, Owain Snaith, Juhan Kim, Jihye Shin, Yonghwi Kim, Hyowon Kim
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 2, p 145 (2024)
One intriguing approach for studying the dynamical evolution of galaxy clusters is to compare the spatial distributions among various components such as dark matter, member galaxies, gas, and intracluster light (ICL). Utilizing the recently introduce
Externí odkaz:
https://doaj.org/article/728dd4b592e440cab0338d08e5a424bf
Autor:
K. HyeongHan, H. Cho, M. James Jee, D. Wittman, S. Cha, W. Lee, K. Finner, K. Rajpurohit, M. Brüggen, W. Forman, C. Jones, R. van Weeren, A. Botteon, L. Lovisari, A. Stroe, P. Domínguez-Fernández, E. O’Sullivan, J. Vrtilek
Publikováno v:
The Astrophysical Journal, Vol 962, Iss 2, p 100 (2024)
The galaxy cluster A746 ( z = 0.214), featuring a double radio relic system, two isolated radio relics, a possible radio halo, disturbed V-shaped X-ray emission, and intricate galaxy distributions, is a unique and complex merging system. We present a
Externí odkaz:
https://doaj.org/article/0607ab51866044b1bfa29e5b1f7a312f
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 2, p 186 (2024)
We present a new high-resolution free-form mass model of A2744 that combines both weak-lensing (WL) and strong-lensing (SL) data sets from JWST. The SL data set comprises 286 multiple images, presenting the most extensive SL constraint to date for a
Externí odkaz:
https://doaj.org/article/11c2a11e734747a4845fed40d270d8f8
Publikováno v:
The Astrophysical Journal Letters, Vol 957, Iss 1, p L4 (2023)
We report a discovery of a large-scale bent radio jet in the merging galaxy cluster A514 ( z = 0.071). The radio emission originates from the two radio lobes of the active galactic nucleus (AGN) located near the center of the southern subcluster and
Externí odkaz:
https://doaj.org/article/63622d766646429cb7a888fa9f00abfd
Autor:
Kyle Finner, Bomee Lee, Ranga-Ram Chary, M. James Jee, Christopher Hirata, Giuseppe Congedo, Peter Taylor, Kim HyeongHan
Publikováno v:
The Astrophysical Journal, Vol 958, Iss 1, p 33 (2023)
We have undertaken a near-IR weak-lensing (NIRWL) analysis of the CANDELS HST/WFC3-IR F160W observations. With the Gaia proper motion–corrected catalog as an astrometric reference, we updated the astrometry of the five CANDELS mosaics and achieved
Externí odkaz:
https://doaj.org/article/ce7d912a3eb34601b07207f2b460c5a1
Publikováno v:
The Astrophysical Journal, Vol 953, Iss 1, p 102 (2023)
Utilizing the James Webb Space Telescope Early Release NIRCam Observations, we perform a weak-lensing analysis of the massive galaxy cluster SMACS J0723.3–7327 ( z = 0.39). We investigate the spatial variation of the point-spread function (PSF) fro
Externí odkaz:
https://doaj.org/article/5e83438837dc452fa4e8a494d92ac41f
Autor:
Sangjun Cha, M. James Jee
Publikováno v:
The Astrophysical Journal, Vol 951, Iss 2, p 140 (2023)
We present a new strong-lensing (SL) mass reconstruction of the six Hubble Frontier Fields (HFF) clusters with the MAximum-entropy ReconStruction ( MARS ) algorithm. MARS is a new free-form inversion method, which suppresses spurious small-scale fluc
Externí odkaz:
https://doaj.org/article/d87d7e9cb64c4d58b1cd0d8ad05aa5b2
Autor:
Wonki Lee, Sangjun Cha, M. James Jee, Daisuke Nagai, Lindsay King, John ZuHone, Urmila Chadayammuri, Sharon Felix, Kyle Finner
Publikováno v:
The Astrophysical Journal, Vol 945, Iss 1, p 71 (2023)
Although weak lensing (WL) is a powerful method to estimate a galaxy cluster mass without any dynamical assumptions, a model bias can arise when the cluster density profile departs from the assumed model profile. In a merging system, the bias is expe
Externí odkaz:
https://doaj.org/article/03b6d9848a414a639bbe59516a38aa2d