%0 Generic %1 frye2023paper %A Frye, Brenda L. %A Pascale, Massimo %A Foo, Nicholas %A Leimbach, Reagen %A Garuda, Nikhil %A Robles, Paulina Soto %A Summers, Jake %A Diaz, Carlos %A Kamieneski, Patrick %A Furtak, Lukas %A Cohen, Seth %A Diego, Jose %A Beauchesne, Benjamin %A Windhorst, Rogier %A Willner, Steve %A Koekemoer, Anton M. %A Zitrin, Adi %A Caminha, Gabriel %A Caputi, Karina %A Coe, Dan %A Conselice, Christopher J. %A Dai, Liang %A Dole, Herve %A Driver, Simon %A Grogin, Norman %A Harrington, Kevin %A Jansen, Rolf A. %A Kneib, Jean-Paul %A Lehnert, Matt %A Lowenthal, James %A Marshall, Madeline A. %A Menanteau, Felipe %A Pampleiga, Belen Alcalde %A Pirzkal, Nor %A Polletta, Mari %A Richard, Johan %A Robotham, Aaron %A Ryan, Russell E. %A Rutkowski, Michael J. %A Sifon, Christobal %A Tompkins, Scott %A Wang, Daniel %A Yan, Haojing %A Yun, Min S. %D 2023 %K tifr %T Paper 1: The JWST PEARLS View of the El Gordo Galaxy Cluster and of the Structure It Magnifies %U http://arxiv.org/abs/2303.03556 %X The massive galaxy cluster El Gordo ($z=0.87$) imprints multitudes of gravitationally lensed arcs onto James Webb Space Telescope (JWST) Near-Infrared Camera (NIRCam) images. Eight bands of NIRCam imaging were obtained in the Prime Extragalactic Areas for Reionization and Lensing Science (PEARLS) program (GTO #1176). PSF-matched photometry across a suite of Hubble Space Telescope (HST) and NIRCam filters gives new photometric redshifts. We confirm 54 known image multiplicities and find two new ones and construct a lens model based on the light-traces-mass method. The mass within 500kpc estimated from the lens model is $\sim$$7.0\times10^14$M$_ødot$ with a mass ratio between the southeastern and northwestern components of $\sim$unity, similar to recent works. A statistical search for substructures recovers only these two components, which are each tightly bound kinematically and are separated in radial velocity by ~300 km s$^-1$. We identify a candidate member of a known 4-member $z=4.32$ galaxy overdensity by its model-predicted and photometric redshifts. These five members span a physical extent of $\sim$60 kpc and exhibit multiple components consistent with satellite associations. Thirteen additional candidates selected by spectroscopic/photometric constraints are small and faint, with a mean apparent brightness corrected for lensing magnification that is $\sim$2.2 mag fainter than M*. NIRCam imaging admits a wide range of brightnesses and morphologies for these candidates, suggesting a more diverse galaxy population may be underlying this rare view of a strongly-lensed galaxy overdensity.

@misc{frye2023paper, abstract = {The massive galaxy cluster El Gordo ($z=0.87$) imprints multitudes of gravitationally lensed arcs onto James Webb Space Telescope (JWST) Near-Infrared Camera (NIRCam) images. Eight bands of NIRCam imaging were obtained in the Prime Extragalactic Areas for Reionization and Lensing Science (PEARLS) program (GTO #1176). PSF-matched photometry across a suite of Hubble Space Telescope (HST) and NIRCam filters gives new photometric redshifts. We confirm 54 known image multiplicities and find two new ones and construct a lens model based on the light-traces-mass method. The mass within 500kpc estimated from the lens model is $\sim$$7.0\times10^{14}$M$_{\odot}$ with a mass ratio between the southeastern and northwestern components of $\sim$unity, similar to recent works. A statistical search for substructures recovers only these two components, which are each tightly bound kinematically and are separated in radial velocity by ~300 km s$^{-1}$. We identify a candidate member of a known 4-member $z=4.32$ galaxy overdensity by its model-predicted and photometric redshifts. These five members span a physical extent of $\sim$60 kpc and exhibit multiple components consistent with satellite associations. Thirteen additional candidates selected by spectroscopic/photometric constraints are small and faint, with a mean apparent brightness corrected for lensing magnification that is $\sim$2.2 mag fainter than M*. NIRCam imaging admits a wide range of brightnesses and morphologies for these candidates, suggesting a more diverse galaxy population may be underlying this rare view of a strongly-lensed galaxy overdensity.}, added-at = {2023-03-08T06:34:24.000+0100}, author = {Frye, Brenda L. and Pascale, Massimo and Foo, Nicholas and Leimbach, Reagen and Garuda, Nikhil and Robles, Paulina Soto and Summers, Jake and Diaz, Carlos and Kamieneski, Patrick and Furtak, Lukas and Cohen, Seth and Diego, Jose and Beauchesne, Benjamin and Windhorst, Rogier and Willner, Steve and Koekemoer, Anton M. and Zitrin, Adi and Caminha, Gabriel and Caputi, Karina and Coe, Dan and Conselice, Christopher J. and Dai, Liang and Dole, Herve and Driver, Simon and Grogin, Norman and Harrington, Kevin and Jansen, Rolf A. and Kneib, Jean-Paul and Lehnert, Matt and Lowenthal, James and Marshall, Madeline A. and Menanteau, Felipe and Pampleiga, Belen Alcalde and Pirzkal, Nor and Polletta, Mari and Richard, Johan and Robotham, Aaron and Ryan, Russell E. and Rutkowski, Michael J. and Sifon, Christobal and Tompkins, Scott and Wang, Daniel and Yan, Haojing and Yun, Min S.}, biburl = {https://www.bibsonomy.org/bibtex/2f7683cf062ae5a222f010d9be8ed99d4/citekhatri}, description = {Paper 1: The JWST PEARLS View of the El Gordo Galaxy Cluster and of the Structure It Magnifies}, interhash = {2bd232a72e2d467f927eb0f74300e819}, intrahash = {f7683cf062ae5a222f010d9be8ed99d4}, keywords = {tifr}, note = {cite arxiv:2303.03556Comment: 23 pages, submitted to ApJ}, timestamp = {2023-03-08T06:34:24.000+0100}, title = {Paper 1: The JWST PEARLS View of the El Gordo Galaxy Cluster and of the Structure It Magnifies}, url = {http://arxiv.org/abs/2303.03556}, year = 2023 }