منابع مشابه
The Evolutionary Status of SS 433.
We consider possible evolutionary models for SS 433. We assume that common envelope evolution is avoided if radiation pressure is able to expel most of a super-Eddington accretion flow from a region smaller than the accretor's Roche lobe. This condition is satisfied, at least initially, for largely radiative donors with masses in the range 4-12 M middle dot in circle. For donors more massive th...
متن کاملInflow and outflow from the accretion disc of the microquasar SS 433: UKIRT spectroscopy
A succession of near-IR spectroscopic observations, taken nightly throughout an entire cycle of SS 433’s orbit, reveal (i) the persistent signature of SS 433’s accretion disc, having a rotation speed of ∼500 km s (ii) the presence of the circumbinary disc recently discovered at optical wavelengths by Blundell, Bowler & Schmidtobreick (2008) and (iii) a much faster outflow than has previously be...
متن کاملThe Equatorial Outflow of SS 433
We present VLBI imaging results for SS433 from the period 1995–2000. An equatorial emission region is detected and confirmed in 7 experiments at 1.6 and 5 GHz. The structure of the region changes with time on scales of weeks to months. The nature of emission is unknown, but it is certainly non-thermal, maybe optically thin synchrotron. The spectrum however might be attenuated by a thermal popul...
متن کاملThe multifrequency monitoring of microquasars . SS 433
The principal results of daily observations with the RATAN-600 radio telescope of X-ray binary with relativistic jets microquasar SS433 in 1986–2003 are presented. We have measured the flux densities at 0.96, 2.3, 3.9, 7.7, 11.2 and 21.7 GHz in different sets, duration from a week to some months. In general there are 940 observations of SS433 and more than 4500 flux density measurements in the ...
متن کاملThe Jets and Disc of SS 433 at Super-Eddington Luminosities
We examine the jets and the disc of SS 433 at super-Eddington luminosities with Ṁ ∼ 600Ṁc by time-dependent two-dimensional radiation hydrodynamical calculations, assuming α-model for the viscosity. One-dimensional supercritical accretion disc models with mass loss or advection are used as the initial configurations of the disc. As a result, from the initial advective disc models with α =0.001 ...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1980
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/193.4.707