Three-Dimensional Doppler Tomography of the RS Vulpeculae Interacting Binary

Abstract

Three-dimensional Doppler tomography has been used to study the H$\alpha$ emission sources in the RS Vulpeculae interacting binary. The 2D tomogram of this binary suggested that most of the emission arose from the cool mass losing star with additional evidence of gas flowing close to the predicted trajectory. However, the 3D tomogram revealed surprising evidence of a more pronounced gas stream flow at high $V_z$ velocities from -240 to -360 km s{${}^{-1}$}. This behavior is most likely caused by magnetic activity on the cool star since the central velocity plane, defined by $V_z$ = 0 km s{${}^{-1}$}, should be coincident with the orbital plane of the binary if the flow is dominated by gravitational forces only. RS Vul has been detected as both an X-ray and a radio source, and it is possible that the RS Vul gas stream may have been deflected by magnetic field lines. This flow is distinctly different from that found in the streamlike state of U CrB, in which the gas flow was confined mostly to the central velocity plane.

12 pages, 7 figures, submitted to ApJ

References in corpus (6)

• The Discovery of gamma-Ray Emission From The Blazar RGB J0710+591
• Doppler Images and Chromospheric Variability of TWA 6
• Revealing the Nature of Algol Disks through Optical and UV Spectroscopy, Synthetic Spectra, and Tomography of TT Hydrae
• Interferometric Observations of the Hierarchical Triple System Algol
• Three-Dimensional Doppler Images of the Disk-like and Stream-like States of U Coronae Borealis
• Optical spectroscopy and Doppler tomography of Cygnus X-2

Cited by in corpus (7)

• Critically-rotating accretors and non-conservative evolution in Algols
• A cyclic bipolar wind in the interacting binary V393 Scorpii
• Images of Gravitational and Magnetic Phenomena Derived from 2D Back-Projection Doppler Tomography of Interacting Binary Stars
• Modeling the Accretion Structure of AU Mon
• New Evidence of Magnetic Interactions between Stars from 3D Doppler Tomography of Algol Binaries: Beta Per and RS Vul
• Three-Dimensional Hydrodynamic Simulations of Accretion in Short Period Algols
• Orbital and stochastic far-UV variability in the nova-like system V3885 Sgr