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Discovery of four X-ray quasars behind the Large Magellanic Cloud

A. Dobrzycki·P. J. Groot·L. M. Macri·K. Z. Stanek
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Abstract

We present the discovery of four X-ray quasars (z_em = 0.26, 0.53, 0.61, 1.63) located behind the Large Magellanic Cloud; three of them are located behind the bar of the LMC. The quasars were identified via spectroscopy of optical counterparts to X-ray sources found serendipitously by the Chandra X-ray Observatory satellite. All four quasars have archival VI photometry from the OGLE-II project; one of them was found by OGLE to be variable. We present the properties of the quasars and discuss their possible applications.

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A. Dobrzycki, P. J. Groot, L. M. Macri, K. Z. Stanek. 2002-03-06. Discovery of four X-ray quasars behind the Large Magellanic Cloud. https://doi.org/10.1086/340539

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