First simultanous X-ray and optical observations of rapid variability of supercritical accretor SS433

Abstract

We present results of first simultaneous optical and X-ray observations of peculiar binary system SS433. For the first time, chaotic variability of SS433 in the optical spectral band (R band) on time scales as small as tens of seconds was detected. We find that the X-ray flux of SS433 is delayed with respect to the optical emission by approximately 80 sec. Such a delay can be interpreted as the travel time of mass accretion rate perturbations from the jet base to the observed X-ray emitting region. In this model, the length of the supercritical accretion disk funnel in SS433 is ~1e12 cm.

4 pages, 3 figures, Submitted to Astronomy and Astrophysics Letters

References in corpus (4)

• Soft state of Cygnus X-1: stable disk and unstable corona
• The High Resolution X-ray Spectrum of SS 433 using the Chandra HETGS
• Spectral Components of SS 433
• Super-Eddington Black-Hole Models for SS 433

Cited by in corpus (13)

• Ultraluminous X-Ray Sources
• INTEGRAL observations of SS433: Results of coordinated campaign
• NuSTAR reveals the hidden nature of SS433
• Monte-Carlo simulations of the broadband X-ray continuum of SS433
• Broad band variability of SS433: Accretion disk at work?
• Peculiar nature of hard X-ray eclipse in SS433 from INTEGRAL observations
• A Massive Jet Ejection Event from the Microquasar SS 433 Accompanying Rapid X-Ray Variability
• X-ray variability of SS433: effects of the supercritical accretion disc
• X-ray Variability of SS 433: Evidence for Supercritical Accretion
• Fast optical variability of SS 433
• SS 433: Results of a Recent Multi-wavelength Campaign
• Eclipsing Light-Curve Asymmetry for Black-Hole Accretion Flows
• Spectral and photometric variability of SS 433 observed with XRISM and simultaneous optical and near-infrared telescopes