Lensing in the Blue. III. Weak-lensing Shape Catalogs of 30 Merging Galaxy Clusters

@article{saha2026lensing,
  title = {{Lensing in the Blue. III. Weak-lensing Shape Catalogs of 30 Merging Galaxy Clusters}},
  author = {Sayan Saha and Jacqueline E. McCleary and Spencer W. Everett and Maya Amit and Georgios N. Vassilakis and Emaad Paracha and Leo W.H. Fung and Steven J. Benton and William C. Jones and Gavin Leroy and Eric M. Huff and Richard Massey and Thuy Vy T. Luu and Ajay S. Gill and Mohamed M. Shaaban and Philippe Voyer and Adam Field and Anthony M. Brown and Giulia Cerini and Paul Clark and Matthew Craigie and Christopher J. Damaren and Tim Eifler and David Harvey and Eric Habjan and John W. Hartley and Bradley Holder and Mathilde Jauzac and David Lagattuta and Jason S.-Y. Leung and Lun Li and Johanna M. Nagy and C. Barth Netterfield and Susan F. Redmond and Jason D. Rhodes and Andrew Robertson and L. Javier Romualdez and Jürgen Schmoll and Ellen Sirks and Sut Ieng Tam and André Z. Vitorelli and Alfredo Zenteno and SuperBIT collaboration},
  journal = {The Astrophysical Journal},
  year = {2026},
  month = oct,
  doi = {10.3847/1538-4357/aea6a5},
  url = {https://iopscience.iop.org/article/10.3847/1538-4357/aea6a5},
  note = {CC BY 4.0},
}

TY  - JOUR
TI  - Lensing in the Blue. III. Weak-lensing Shape Catalogs of 30 Merging Galaxy Clusters
AU  - Sayan Saha
AU  - Jacqueline E. McCleary
AU  - Spencer W. Everett
AU  - Maya Amit
AU  - Georgios N. Vassilakis
AU  - Emaad Paracha
AU  - Leo W.H. Fung
AU  - Steven J. Benton
AU  - William C. Jones
AU  - Gavin Leroy
AU  - Eric M. Huff
AU  - Richard Massey
AU  - Thuy Vy T. Luu
AU  - Ajay S. Gill
AU  - Mohamed M. Shaaban
AU  - Philippe Voyer
AU  - Adam Field
AU  - Anthony M. Brown
AU  - Giulia Cerini
AU  - Paul Clark
AU  - Matthew Craigie
AU  - Christopher J. Damaren
AU  - Tim Eifler
AU  - David Harvey
AU  - Eric Habjan
AU  - John W. Hartley
AU  - Bradley Holder
AU  - Mathilde Jauzac
AU  - David Lagattuta
AU  - Jason S.-Y. Leung
AU  - Lun Li
AU  - Johanna M. Nagy
AU  - C. Barth Netterfield
AU  - Susan F. Redmond
AU  - Jason D. Rhodes
AU  - Andrew Robertson
AU  - L. Javier Romualdez
AU  - Jürgen Schmoll
AU  - Ellen Sirks
AU  - Sut Ieng Tam
AU  - André Z. Vitorelli
AU  - Alfredo Zenteno
AU  - SuperBIT collaboration
PY  - 2026
DA  - 2026/10/28
JO  - The Astrophysical Journal
DO  - 10.3847/1538-4357/aea6a5
UR  - https://iopscience.iop.org/article/10.3847/1538-4357/aea6a5
AB  - 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 2023 April–May. 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 (1.54% ± 6.00%).
SN  - 1538-4357
SN  - 0004-637X
ER  -