Exploring nine simultaneously occurring transients on April 12th 1950
Nine point sources appeared within half an hour on a region within ∼? 10 arcmin of a red-sensitive photographic plate taken in April 1950 as part of the historic Palomar Sky Survey. All nine sources are absent on both previous and later photographic images, and absent in modern surveys with CCD detectors which go several magnitudes deeper. We
Villarroel, Beatriz et al.
Fecha de publicación:
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2021