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Title: A LIKELY MICRO-QUASAR IN THE SHADOW OF M82 X-1

The ultra-luminous X-ray source M82 X-1 is one of the most promising intermediate mass black hole candidates in the local universe based on its high X-ray luminosities (10{sup 40}–10{sup 41} erg s{sup −1}) and quasi-periodic oscillations, and is possibly associated with a radio flare source. In this work, applying the sub-pixel technique to the 120 ks Chandra observation (ID: 10543) of M82 X-1, we split M82 X-1 into two sources separated by 1.″1. The secondary source is not detected in other M82 observations. The radio flare source is not found to associate with M82 X-1, but is instead associated with the nearby transient source S1 with an outburst luminosity of ∼10{sup 39} erg s{sup −1}. With X-ray outburst and radio flare activities analogous to the recently discovered micro-quasar in M31, S1 is likely to be a micro-quasar hidden in the shadow of M82 X-1.
Authors:
 [1] ; ;  [2]
  1. Department of Astronomy and Key Laboratory of Modern Astronomy and Astrophysics, Nanjing University, Nanjing, 210093 (China)
  2. Key Laboratory of Optical Astronomy, National Astronomical Observatories of China, 20 Datun Rd, Chaoyang, Beijing, 100012 (China)
Publication Date:
OSTI Identifier:
22364287
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal Letters; Journal Volume: 799; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; BLACK HOLES; COSMIC X-RAY SOURCES; GALAXIES; LUMINOSITY; MASS; OSCILLATIONS; PERIODICITY; QUASARS; TRANSIENTS; UNIVERSE; X RADIATION