Search results for "Jet velocity"

showing 2 items of 2 documents

ChandraObservation of Cir X‐1 near the Periastron Passage: Evidence for an X‐Ray Jet?

2008

We present the results of a 25 ks long Chandra observation of the peculiar source Cir X-1 near the periastron passage. We report precise X-ray coordinates of the source, which were compatible with the optical and radio counterpart coordinates. We focus on the study of the detected emission features using the High Energy Transmission Grating Spectrometer on board the Chandra satellite. We detect emission lines associated with Mg XII, Si XIII, Si XIV, S XV, S XVI, Ar XVII, Ar XVIII, Ca XIX, Ca XX, Fe XXV, and Fe XXVI, showing an average redshift of 470 km s-1. The most intense emission features can be fitted with two lines; this is more evident for the 6.6 keV emission feature, which shows a …

PhysicsJet (fluid)Line-of-sightSpectrometerX-rayX-ray binaryAstronomyAstronomy and AstrophysicsAstrophysicsRedshiftLine: Formation Line: Identification Stars: Individual: Constellation Name: Circinus X-1 X-Rays: Binaries X-Rays: GeneralSettore FIS/05 - Astronomia E AstrofisicaJet velocitySpace and Planetary ScienceEmission spectrumThe Astrophysical Journal
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Relativistic Numerical Simulations of Superluminal Sources

1998

AbstractWe study the generation and evolution of superluminal components in relativistic jets through relativistic hydrodynamical and emission simulations of a square-wave perturbation in the jet velocity.

PhysicsSuperluminal motionJet velocityAstrophysical jetAstrophysics::High Energy Astrophysical PhenomenaPerturbation (astronomy)Computational physicsInternational Astronomical Union Colloquium
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