An analysis of the radial velocity residuals for various models of SS 433

Abstract

view Abstract Citations (4) References (20) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS An Analysis of the Radial Velocity Residuals for Various Models of SS 433 Collins, George W., II ; Garasi, Christopher J. Abstract In this paper we analyze the residuals resulting from the comparison of several models with radial velocity data for the jets of SS 433. We find no compelling evidence for random variations in orientation or speed of the relativistic jets commonly known as 'jitter.' Earlier determinations of the presence of 'jitter' can be traced to the incomplete modeling of the nodding motion of the jets. Such motion results from the time-dependent torques originating with the motion of the companion. While it is likely that such "jitter" exists, its presence is below the detectable limit of contemporary analysis. We conclude that at the present time even the best models for the motions of SS 433 appear to be incomplete on timescales exceeding a few years. Detection of the jitter will require an improvement in both the volume of data available for analysis as well as improvements in the models for the motion of the jets. Publication: The Astrophysical Journal Pub Date: August 1994 DOI: 10.1086/174534 Bibcode: 1994ApJ...431..836C Keywords: Doppler Effect; Radial Velocity; Radio Jets (Astronomy); Stochastic Processes; Astronomical Spectroscopy; Cosmology; Distribution Functions; Kinematics; Time Dependence; Astrophysics; STARS: BINARIES: SPECTROSCOPIC; STARS: INDIVIDUAL ALPHANUMERIC: SS 433; TECHNIQUES: RADIAL VELOCITIES full text sources ADS | data products SIMBAD (1)