Open Access

Table 1

HST archival images inspected while searching for strong gravitational lenses in the Hubble Asteroid Hunter project.

HST instr. FoV Scale (″pix−1) Images Cutouts
ACS/WFC 202″× 202″ 0.05 22 940 91 760
WFC3/UVIS 160″ × 160″ 0.04 10 326 41 118
WFC3/IR 123″×137″ 0.13 12 518 12 518

Notes. The search contains HST observations taken and released between 2002 and June 2020, with exposure times longer than 300 s. Images follow the standard HST processing pipeline and are singleband. The ACS/WFC and WFC3/UVIS images were divided into four equal quadrants (cutouts) in order to maximise the detection of smaller arcs. The WFC3/IR images were presented ‘as is’.

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