Long-term X-ray variability of the microquasar system LS 5039/RX J1826.2 1450

  title={Long-term X-ray variability of the microquasar system LS 5039/RX J1826.2 1450},
  author={Pablo Reig and Marc Rib{\'o} and Josep Maria Paredes and Jos{\'e}-Mar{\'i}a Mart{\'i}},
  journal={Astronomy and Astrophysics},
We report on the results of the spectral and timing analysis of a BeppoSAX observation of the microquasar system LS 5039/RX J1826.2−1450. The source was found in a low-flux state with FX(1-10 keV)= 4.7× 10 −12 erg cm −2 s −1 , which represents almost one order of magnitude lower than a previous RXTE observation 2.5 years before. The 0.1-10 keV spectrum is described by an absorbed power-law continuum with photon-number spectral index = 1.8± 0.2 and hydrogen column density of NH = 1.0 +0.4 −0.3… 

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