A radio jet in the prototypical symbiotic star Z And?

Abstract

As part of a multi-wavelength campaign to observe the 2000--2002 outburst of the prototypical symbiotic star Z Andromedae, we observed this object six times each with the Multi-Element Radio Linked Interferometer Network (MERLIN) and Very Large Array (VLA). The radio flux varied significantly during the course of the optical outburst at all three observation frequencies (1.4, 5, and 15 GHz). A jet-like extension was present in the 2001 September MERLIN image and appeared to be aligned perpendicularly to the plane of the binary orbit. Assuming that the ejection took place at the beginning of the optical outburst, the 0.06 arcsec separation between the peak of the extended emission and the central core implies that the ejected material was moving with a velocity of \~400 km/s. This extended emission faded on a timescale of ~months and was not detected at any other epoch. We consider the implications of jets being a component of a ``prototypical'' symbiotic system and compare properties of the observed jet of Z And with those of the jets in X-ray binary systems.

8 pages. Accepted for publication in MNRAS

References in corpus (16)

• Powerful jets from black hole X-ray binaries in Low/Hard X-ray states
• The radio luminosity of persistent X-ray binaries
• A Search for Rapid Photometric Variability in Symbiotic Binaries
• The nature of the supersoft X-ray source RX~J0513--69
• The X-ray R Aquarii: A Two-sided Jet and Central Source
• Discovery of a Magnetic White Dwarf in the Symbiotic Binary Z Andromedae
• Six supersoft X-ray binaries: system parameters and twin-jet outflows
• The LMC Supersoft X-Ray Binary RX J0513.9-6951
• The symbiotic star CH Cygni. I. Non-thermal bipolar jets
• CH Cygni I: Observational Evidence for a Disk-Jet Connection
• Bipolar Jets and Orbital Dynamics of the Supersoft X-Ray Source RX J0019.8+2156
• The orbital modulation in the radio emission of Cygnus X-1
• CH Cygni II: Optical Flickering from an Unstable Disk
• Discovery of a bipolar and highly variable mass outflow from the symbiotic binary StHa 190
• A search for radio emission from Galactic supersoft X-ray sources
• On the resolved radio emission from AG Draconis: evidence for jet ejection?

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