Jeffrey E. Gunn

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An unusual double-lobed extended X-ray source (RX J105343+5735) is detected in the ROSAT ultra-deep HRI image of the Lockman Hole. The angular size of the source is 1.7 × 0.7 arcmin 2 and its X-ray flux is 2 × 10 −14 erg cm −2 s −1. R-band imaging from the Keck telescope revealed a marginal excess of galaxies brighter than R=24.5, but Keck LRIS(More)
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