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PreprintCC BY 4.0arXiv

Lensing in the Blue IV: The First Weak Gravitational Lensing Maps from the Stratosphere

33 more authors

Abstract

The Super-Pressure Balloon-borne Imaging Telescope (SuperBIT) completed its science flight in April 2023, obtaining imaging data for 30 galaxy clusters. In this work, we present the first weak-lensing convergence maps from these observations, using six clusters selected from the 30 targets. We construct background-galaxy catalogs using SuperBIT's three-band photometry and a color-color-based method to separate foreground and background galaxies, and use the calibrated galaxy shapes presented in Lensing in the Blue III to reconstruct the weak-lensing convergence field using Kaiser-Squires inversion. We compare the convergence signal-to-noise maps for the six clusters with independent tracers, including X-ray emission and red-sequence cluster-member number-density maps. These results demonstrate the first successful weak-lensing mass mapping with imaging from a sub-orbital astronomical observatory.

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BibTeX
@misc{saha2026lensing,
  title = {{Lensing in the Blue IV: The First Weak Gravitational Lensing Maps from the Stratosphere}},
  author = {Sayan Saha and Maya Amit and Jacqueline E. McCleary and Georgios N. Vassilakis and Emaad Paracha and Giulia Cerini and Spencer W. Everett and Leila Ohashi and Eric M. Huff and Gavin Leroy and Leo W. H. Fung and Richard Massey and Steven J. Benton and William C. Jones and Thuy Vy T. Luu and Ajay S. Gill and Mohamed M. Shaaban and Philippe Voyer and Adam Field and Adam Aoua and Anthony M. Brown 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 Karuna Tarafdar and André Z. Vitorelli and Alfredo Zenteno},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.07244},
  eprint = {2610.07244},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.07244},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Lensing in the Blue IV: The First Weak Gravitational Lensing Maps from the Stratosphere
AU  - Sayan Saha
AU  - Maya Amit
AU  - Jacqueline E. McCleary
AU  - Georgios N. Vassilakis
AU  - Emaad Paracha
AU  - Giulia Cerini
AU  - Spencer W. Everett
AU  - Leila Ohashi
AU  - Eric M. Huff
AU  - Gavin Leroy
AU  - Leo W. H. Fung
AU  - Richard Massey
AU  - Steven J. Benton
AU  - William C. Jones
AU  - Thuy Vy T. Luu
AU  - Ajay S. Gill
AU  - Mohamed M. Shaaban
AU  - Philippe Voyer
AU  - Adam Field
AU  - Adam Aoua
AU  - Anthony M. Brown
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  - Karuna Tarafdar
AU  - André Z. Vitorelli
AU  - Alfredo Zenteno
PY  - 2026
DA  - 2026/10/05
PB  - arXiv
DO  - 10.48550/arxiv.2610.07244
UR  - https://arxiv.org/abs/2610.07244
AB  - The Super-Pressure Balloon-borne Imaging Telescope (SuperBIT) completed its science flight in April 2023, obtaining imaging data for 30 galaxy clusters. In this work, we present the first weak-lensing convergence maps from these observations, using six clusters selected from the 30 targets. We construct background-galaxy catalogs using SuperBIT's three-band photometry and a color-color-based method to separate foreground and background galaxies, and use the calibrated galaxy shapes presented in Lensing in the Blue III to reconstruct the weak-lensing convergence field using Kaiser-Squires inversion. We compare the convergence signal-to-noise maps for the six clusters with independent tracers, including X-ray emission and red-sequence cluster-member number-density maps. These results demonstrate the first successful weak-lensing mass mapping with imaging from a sub-orbital astronomical observatory.
ER  -