We present an HST /Advanced Camera for Surveys (ACS) weak gravitational lensing analysis of 13 massive high-redshift ( z median =0.88) galaxy clusters discovered in the South Pole Telescope (SPT) Sunyaev–Zel'dovich Survey. This study is part of a larger campaign that aims to robustly ...
Africa is home to 55 countries, an ancient and complex history, modern cities, some 3,000 languages and over a billion people. From Algeria to Zimbabwe, here’s a snapshot of each country on a continent you need to know more about.
Prior to this study, the SPT observable found to have the lowest scatter with mass was cluster detection significance. We demonstrate, from both simulations and SPT observed clusters, that YSZ measured within an aperture comparable to the SPT beam size is equivalent, in terms of scatter with ...
We present a catalog of 224 galaxy cluster candidates, selected through their Sunyaev-Zel'dovich (SZ) effect signature in the first 720 deg2 of the South Pole Telescope (SPT) survey. This area was mapped with the SPT in the 2008 and 2009 austral winters to a depth of 18 uK-arcmin at...
US President Joe Biden, pausing from political pressures to bask in the glow of the cosmos, on Monday released the debut photo from NASA's James Webb Space Telescope – an image of a galaxy cluster revealing the most deta...
Launch of South-South Cities Cluster on Sustainable Agriculture Value Chain Development At the meeting, UNOSSC also announced the online launch of the South-South Cities Cluster on Sustainable Agriculture Value Chain Development. As Ms. Xiaojun Grace Wang, Deputy Director of UNOSSC, highlighted: “Dig...
We present Sunyaev-Zel'dovich measurements of 15 massive X-ray selected galaxy clusters obtained with the South Pole Telescope. The Sunyaev-Zel'dovich (SZ) cluster signals are measured at 150 GHz, and concurrent 220 GHz data are used to reduce astrophysical contamination. Radial profiles are ...
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SPT-CL J0205-5829: A z = 1.32 Evolved Massive Galaxy Cluster in the South Pole Telescope Sunyaev-Zel'dovich Effect Survey The galaxy cluster SPT-CL J0205-5829 currently has the highest spectroscopically-confirmed redshift, z=1.322, in the South Pole Telescope Sunyaev-Zel'dovic... BA Stal...
Galaxy clusters discovered via the Sunyaev-Zel'dovich effect in the first 720 square degrees of the South Pole Telescope survey We present a catalog of 224 galaxy cluster candidates, selected through their Sunyaev-Zel'dovich (SZ) effect signature in the first 720 deg2 of the South P... CL...