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An HST Wide-field Survey of the Galactic Bulge: Overview, Strategy, and First Results

  • Authors: Sean K. Terry, Jay Anderson, Charles A. Beichman, David P. Bennett, Aparna Bhattacharya, Jean-Philippe Beaulieu, B. Scott Gaudi, Joel Green, Macy J. Huston, Jessica R. Lu, Ray A. Lucas, David M. Nataf, Matthew T. Penny, Natalia E. Rektsini, Carolina Rodriguez Sanchez-Vahamonde, Aikaterini Vandorou

Sean K. Terry et al 2026 The Astrophysical Journal Letters 1003 .

  • Provider: AAS Journals

Caption: Figure 4.

Color composite of one parallel field (HD70) imaged during the HST survey. The position angle of WFC3/UVIS is rotated approximately 45° relative to ACS/WFC, and the centers of the focal planes are separated by ∼6′ on the sky. ACS/WFC has a total FoV that is ∼40% larger than WFC3/UVIS.

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