Paper

{
  "raw_xml": "<entry>\n    <id>http://arxiv.org/abs/2603.18376v1</id>\n    <title>Lensing in the Blue III: Weak Lensing Shape Catalogs of 30 Merging Galaxy Clusters</title>\n    <updated>2026-03-19T00:28:59Z</updated>\n    <link href='https://arxiv.org/abs/2603.18376v1' rel='alternate' type='text/html'/>\n    <link href='https://arxiv.org/pdf/2603.18376v1' rel='related' title='pdf' type='application/pdf'/>\n    <summary>We present the weak gravitational lensing dataset from the Super-pressure Balloon-Borne Imaging Telescope (SuperBIT), which imaged 30 galaxy clusters during its 45 night flight in April to May 2023. SuperBIT is a first-of-its-kind balloon-borne imaging telescope that achieved near diffraction-limited observations in near-space conditions above 98% of the Earth's atmosphere. We use the metacalibration algorithm to obtain calibrated galaxy shapes for our target clusters and several calibration fields, enabling unbiased reconstruction of the weak-lensing signal. We employ several diagnostics throughout the pipeline, including assessments of point-spread function (PSF) modeling residuals and their impact on weak-lensing measurements, as well as tests for correlations between galaxy shapes and measured galaxy and PSF properties. To assess the multiplicative shear bias of the pipeline, we analyze a parallel set of simulated images that incorporate the real observing conditions from the flight, including measured SuperBIT PSFs, observed sky backgrounds, and detector noise, yielding a bias of $(1.1 \\pm 7.8)$~per~cent.</summary>\n    <category scheme='http://arxiv.org/schemas/atom' term='astro-ph.CO'/>\n    <category scheme='http://arxiv.org/schemas/atom' term='astro-ph.IM'/>\n    <published>2026-03-19T00:28:59Z</published>\n    <arxiv:comment>29 pages, 22 figures, 2 table</arxiv:comment>\n    <arxiv:primary_category term='astro-ph.CO'/>\n    <author>\n      <name>Sayan Saha</name>\n    </author>\n    <author>\n      <name>Jacqueline E. McCleary</name>\n    </author>\n    <author>\n      <name>Spencer W. Everett</name>\n    </author>\n    <author>\n      <name>Maya Amit</name>\n    </author>\n    <author>\n      <name>Georgios N. Vassilakis</name>\n    </author>\n    <author>\n      <name>Emaad Paracha</name>\n    </author>\n    <author>\n      <name>Leo W. H. Fung</name>\n    </author>\n    <author>\n      <name>Steven J. Benton</name>\n    </author>\n    <author>\n      <name>William C. Jones</name>\n    </author>\n    <author>\n      <name>Gavin Leroy</name>\n    </author>\n    <author>\n      <name>Eric M. Huff</name>\n    </author>\n    <author>\n      <name>Richard Massey</name>\n    </author>\n    <author>\n      <name>Thuy Vy T. Luu</name>\n    </author>\n    <author>\n      <name>Ajay S. Gill</name>\n    </author>\n    <author>\n      <name>Mohamed M. Shaaban</name>\n    </author>\n    <author>\n      <name>Philippe Voyer</name>\n    </author>\n    <author>\n      <name>Anthony M. Brown</name>\n    </author>\n    <author>\n      <name>Giulia Cerini</name>\n    </author>\n    <author>\n      <name>Paul Clark</name>\n    </author>\n    <author>\n      <name>Matthew Craigie</name>\n    </author>\n    <author>\n      <name>Christopher J. Damaren</name>\n    </author>\n    <author>\n      <name>Tim Eifler</name>\n    </author>\n    <author>\n      <name>David Harvey</name>\n    </author>\n    <author>\n      <name>Eric Habjan</name>\n    </author>\n    <author>\n      <name>John W. Hartley</name>\n    </author>\n    <author>\n      <name>Bradley Holder</name>\n    </author>\n    <author>\n      <name>Mathilde Jauzac</name>\n    </author>\n    <author>\n      <name>David Lagattuta</name>\n    </author>\n    <author>\n      <name>Jason S. -Y. Leung</name>\n    </author>\n    <author>\n      <name>Lun Li</name>\n    </author>\n    <author>\n      <name>Johanna M. Nagy</name>\n    </author>\n    <author>\n      <name>C. Barth Netterfield</name>\n    </author>\n    <author>\n      <name>Susan F. Redmond</name>\n    </author>\n    <author>\n      <name>Jason D. Rhodes</name>\n    </author>\n    <author>\n      <name>Andrew Robertson</name>\n    </author>\n    <author>\n      <name>L. Javier Romualdez</name>\n    </author>\n    <author>\n      <name>Jurgen Schmoll</name>\n    </author>\n    <author>\n      <name>Ellen Sirks</name>\n    </author>\n    <author>\n      <name>Sut Ieng Tam</name>\n    </author>\n    <author>\n      <name>André Z. Vitorelli</name>\n    </author>\n    <author>\n      <name>Alfredo Zenteno</name>\n    </author>\n  </entry>"
}