Výsledky vyhledávání - "Kim HyeongHan"

Akademický článek

Precision MARS Mass Reconstruction of A2744: Synergizing the Largest Strong-lensing and Densest Weak-lensing Data Sets from JWST

Autor: Sangjun Cha, Kim HyeongHan, Zachary P. Scofield, Hyungjin Joo, M. James Jee

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

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Akademický článek

Discovery of A Large-scale Bent Radio Jet in the Merging Cluster A514

Autor: Wonki Lee, John ZuHone, M. James Jee, Kim HyeongHan, Ruta Kale, Eunmo Ahn

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

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Akademický článek

Near-IR Weak-lensing (NIRWL) Measurements in the CANDELS Fields. I. Point-spread Function Modeling and Systematics

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

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Head-to-Toe Measurement of El Gordo: Improved Analysis of the Galaxy Cluster ACT-CL J0102-4915 with New Wide-field Hubble Space Telescope Imaging Data

Autor: Jinhyub Kim, M. James Jee, John P. Hughes, Mijin Yoon, Kim HyeongHan, Felipe Menanteau, Cristóbal Sifón, Luke Hovey, Prasiddha Arunachalam

We present an improved weak-lensing (WL) study of the high$-z$ $(z=0.87)$ merging galaxy cluster ACT-CL J0102-4915 (El Gordo) based on new wide-field Hubble Space Telescope (HST) imaging data. The new imaging data cover the 3.5$\times$3.5 Mpc region

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47b950bd66428ce01836d8283cfa44b9
http://arxiv.org/abs/2106.00031

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The Evolutionary Map of the Universe pilot survey

Publikováno v: Norris, R P, Marvil, J, Collier, J D, Kapinska, A D, O'Brien, A N, Rudnick, L, Andernach, H, Asorey, J, Brown, M J I, Bruggen, M, Crawford, E, English, J, Rahman, S F U, Filipovic, M D, Gordon, Y, Gurkan, G, Hale, C, Hopkins, A M, Huynh, M T, HyeongHan, K, Jee, M J, Koribalski, B S, Lenc, E, Luken, K, Parkinson, D, Prandoni, I, Raja, W, Reiprich, T H, Riseley, C J, Shabala, S S, Sheil, J R, Vernstrom, T, Whiting, M T, Allison, J R, Anderson, C S, Ball, L, Bell, M, Bunton, J, Galvin, T J, Gupta, N, Hotan, A, Jacka, C, Macgregor, P J, Mahony, E K, Maio, U, Moss, V, Pandey-Pommier, M & Voronkov, M A 2021, ' The Evolutionary Map of the Universe Pilot Survey ', Publications of the Astronomical Society of Australia, vol. 38, e046, pp. 1-26 . https://doi.org/10.1017/pasa.2021.42

We present the data and initial results from the first Pilot Survey of the Evolutionary Map of the Universe (EMU), observed at 944 MHz with the Australian Square Kilometre Array Pathfinder (ASKAP) telescope. The survey covers 270 \sqdeg of an area co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71e36e3bf20635849516b282db7983a1
https://doi.org/10.1017/pasa.2021.42

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Discovery of a Radio Relic in the Massive Merging Cluster SPT-CL J2023-5535 from the ASKAP-EMU Pilot Survey

Autor: Ray P. Norris, C. J. Riseley, Kyle Finner, Mijin Yoon, Wonki Lee, Andrew M. Hopkins, Michał J. Michałowski, David Parkinson, M. James Jee, Jordan D. Collier, Lawrence Rudnick, Marcus Brüggen, Kim HyeongHan, Gianfranco Brunetti

Publikováno v: The Astrophysical Journal

The ASKAP-EMU survey is a deep wide-field radio continuum survey designed to cover the entire southern sky and a significant fraction of the northern sky up to $+30^{\circ}$. Here, we report a discovery of a radio relic in the merging cluster SPT-CL

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc0d0525a9a5653340f7c70aa7343b19
http://hdl.handle.net/11585/819647

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Exemplary Merging Clusters: Weak-lensing and X-Ray Analysis of the Double Radio Relic, Merging Galaxy Clusters MACS J1752.0+4440 and ZWCL 1856.8+6616

Autor: Alexander Jones, Reinout J. van Weeren, Christine Jones, Nathan Golovich, Kim HyeongHan, David Wittman, M. James Jee, Francesco de Gasperin, William A. Dawson, William R. Forman, Kyle Finner

Publikováno v: The Astrophysical Journal, 918(2)

The investigation of merging galaxy clusters that exhibit radio relics is strengthening our understanding of the formation and evolution of galaxy clusters, the nature of dark matter, the intracluster medium, and astrophysical particle acceleration.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1903106c75418157d9b42f25987c5a68
https://doi.org/10.3847/1538-4357/ac0d00

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