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

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

2002-02-28

arxiv.org/abs/astro-ph/0202524v2

Astrophys.J.569:L15,2002

Astronomy and Astrophysics

Astrophysics

AASTeX, 8 pages, 1 ps figure, accepted for publication in Ap.J.Letters

Scientific paper

10.1086/340539

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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