REVIEW 11 cited by
The Jets and and Supercritical Accretion Disk in SS433
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(abridged) The review describes observations of SS433. The main difference between SS433 and other X-ray binaries is the supercritical regime for the gas accretion onto the relativistic star (most likely a black hole), which has lead to the formation of collimated relativistic jets. The properties of the jets are determined by their interaction with the disk wind. The precession of the disk and jets, as well as the eclipsing in the binary system, make SS433 a unique laboratory for studies of mechanisms for the microquasar phenomenon. Essentially all photometric and spectroscopic properties of SS433 are determined by the accretion disk and its orientation, but the disk itself is not observed, being located beneath the photosphere of the dense wind. Observational manifestations of the wind and of gas flows in the system are described. Little is known about the structure of the central regions where the hot bases of the jets are located. The available X-ray, UV, and optical observations point towards the picture where the bases of the jets are surrounded by cocoons of hot gas reradiating emission from the inner regions of the jet channel. Direct investigations of this channel in the supercritical accretion disk of SS433 are not possible; however, a similar object oriented face-on would likely be an extremely bright X-ray source, such as ultra-luminous X-ray sources observed in other galaxies.
Forward citations
Cited by 11 Pith papers
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The First Measurement of Jet Collimation Profiles in an X-ray Binary: the Case of SS 433
SS 433’s approaching jet shows a quasi-parabolic collimation profile and progressive opening-angle decrease, the first such measurement in an X-ray binary, plus a core-shift index near −1.
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Discovery of CO Clouds Associated with the X-ray Jets of SS 433: Evidence for Shock-Cloud Interaction Enhancing Nonthermal X-ray Emission
CO observations reveal molecular clumps at SS 433 X-ray jet re-brightening sites, providing evidence that jet-cloud shocks enhance nonthermal X-ray emission via turbulence and magnetic field amplification.
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Radiation GRMHD Models of Accretion onto Stellar-Mass Black Holes: I. Survey of Eddington Ratios
Full-transport radiation GRMHD simulations show super-Eddington black hole accretion is geometrically thick, drives strong outflows, and radiates with very low efficiency (below about 0.5% at 150 times Eddington).
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Revisiting the XMM-Newton Observations of the Galactic Microquasar SS 433: Implications for the Origin of the Ultrahigh-Energy Emission Detected by LHAASO
X-ray jet profiles in SS 433 show hard electron populations near the base and downstream re-brightening that single-injection transport models cannot reproduce, weakening a purely leptonic explanation of LHAASO's >100...
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Magnetic rigidity reveals the PeVatron acceleration region in SS433
The radio-measured magnetic field in SS 433's inner jet declines as H^-0.5, so the jet retains enough magnetic rigidity at ~100 AU to accelerate protons to PeV energies.
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The X-ray emission of the long-period transient and accreting cataclysmic variable ASKAP J174508.9-505149
X-ray timing and spectral analysis of ASKAP J174508.9-505149 detects matching periodicity and features consistent with an accreting magnetic CV.
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Arcsecond-Scale X-ray Imaging and Spectroscopy of SS 433 with Chandra HETG
EDSER and Richardson-Lucy deconvolution of Chandra HETG zeroth-order images reveal a precessing two-knot structure in SS 433's jets, and PSF-subtracted spectra show no Fe lines in the outer regions, supporting non-the...
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Temporal evolution of the periodic GeV signal from 4FGL J1913.2+0512 and analysis of the SS 433 / W50 lobes
Fermi LAT data analysis detects a time-evolving ~162-day periodic GeV signal from 4FGL J1913.2+0512 linked to SS 433, prominent in 2008-2018 but diminished afterward, indicating multi-year evolution in gamma-ray produ...
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GeV emission around SS 433 with 17 years Fermi-LAT observation
17-year Fermi-LAT observations detect GeV excesses in SS 433's W50 nebula whose spectra and positions suggest acceleration of cosmic-ray protons in microquasar outflows, potentially the first such evidence.
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Galactic Super-Accreting X-ray Binaries as Super-PeVatron Accelerators
Super-accreting X-ray binaries with jet and wind power above 1e39 erg/s can plausibly accelerate protons past several PeV and may feed the galactic cosmic-ray population above the knee.
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The link between obscured accretion and mildly relativistic precessing jets
Observational evidence links obscured super-Eddington accretion to slower precessing jets in stellar-mass compact object systems, contrasting with fixed fast jets in low-density environments.
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