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

abstract

• We present the discovery of four X-ray quasars (Zem = 0.26, 0.53, 0.61, and 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 second phase of the Optical Gravitational Lensing Experiment (OGLE-II); one of them was found by OGLE to be variable. We present the properties of the quasars and discuss their possible applications.

authors

• Macri, Lucas

published proceedings

• ASTROPHYSICAL JOURNAL

author list (cited authors)

• Dobrzycki, A., Groot, P. J., Macri, L. M., & Stanek, K. Z.

citation count

• 21

complete list of authors

• Dobrzycki, A||Groot, PJ||Macri, LM||Stanek, KZ

publication date

• April 2002

publisher

• American Astronomical Society  Publisher

published in

• The Astrophysical Journal (ApJ)  Journal

keywords

• Magellanic Clouds
• Quasars : Individual (qso J050736.52-684751.7,qso J050833.29-685427.5,qso J050924.05-672124.1,qso J051853.19-690217.7)
• X-rays : General

Digital Object Identifier (DOI)

• 10.1086/340539

start page

• L15

end page

• L18

volume

• 569

issue

• 1

URL

• http://dx.doi.org/10.1086/340539