The University of Southampton
University of Southampton Institutional Repository
Warning ePrints Soton is experiencing an issue with some file downloads not being available. We are working hard to fix this. Please bear with us.

The case for jets in cataclysmic variables

The case for jets in cataclysmic variables
The case for jets in cataclysmic variables
For decades cataclysmic variables (CVs) were thought to be one of the few classes of accreting compact objects to not launch jets, and have consequently been used to constrain jet launching models. However, recent theoretical and observational advances indicate that CVs do in fact launch jets. Specifically, it was demonstrated that their accretion-outflow cycle is analogous to that of their higher mass cousins - the X-ray Binaries (XRBs). Subsequent observations of the CV SS Cygni confirmed this and have consistently shown radio flaring equivalent to that in the XRBs that marks a transient jet. Based on this finding and the emission properties, several studies have concluded that the radio emission is most likely from a transient jet. Observations of other CVs, while not conclusive, are consistent with this interpretation. However, the issue is not yet settled. Later observations have raised a number of questions about this model, as well as about potential alternative radio emission mechanisms. CVs are non-relativistic and many have well-determined distances; these properties would make them ideal candidates with which to address many of our outstanding questions about fundamental jet physics. Here we review the case for jets in CVs, discuss the outstanding questions and issues, and outline the future work necessary to conclusively answer the question of whether CVs launch jets.
Accretion, Cataclysmic variables, Jets, X-ray binaries
1387-6473
Coppejans, Deanne L.
9087eb84-f565-482c-b278-25715b96809c
Knigge, Christian
ac320eec-631a-426e-b2db-717c8bf7857e
Coppejans, Deanne L.
9087eb84-f565-482c-b278-25715b96809c
Knigge, Christian
ac320eec-631a-426e-b2db-717c8bf7857e

Coppejans, Deanne L. and Knigge, Christian (2020) The case for jets in cataclysmic variables. New Astronomy Reviews, 89, [101540]. (doi:10.1016/j.newar.2020.101540).

Record type: Article

Abstract

For decades cataclysmic variables (CVs) were thought to be one of the few classes of accreting compact objects to not launch jets, and have consequently been used to constrain jet launching models. However, recent theoretical and observational advances indicate that CVs do in fact launch jets. Specifically, it was demonstrated that their accretion-outflow cycle is analogous to that of their higher mass cousins - the X-ray Binaries (XRBs). Subsequent observations of the CV SS Cygni confirmed this and have consistently shown radio flaring equivalent to that in the XRBs that marks a transient jet. Based on this finding and the emission properties, several studies have concluded that the radio emission is most likely from a transient jet. Observations of other CVs, while not conclusive, are consistent with this interpretation. However, the issue is not yet settled. Later observations have raised a number of questions about this model, as well as about potential alternative radio emission mechanisms. CVs are non-relativistic and many have well-determined distances; these properties would make them ideal candidates with which to address many of our outstanding questions about fundamental jet physics. Here we review the case for jets in CVs, discuss the outstanding questions and issues, and outline the future work necessary to conclusively answer the question of whether CVs launch jets.

This record has no associated files available for download.

More information

Accepted/In Press date: 29 July 2020
e-pub ahead of print date: 31 July 2020
Published date: 1 September 2020
Keywords: Accretion, Cataclysmic variables, Jets, X-ray binaries

Identifiers

Local EPrints ID: 445845
URI: http://eprints.soton.ac.uk/id/eprint/445845
ISSN: 1387-6473
PURE UUID: f4a313b5-f3f4-46fc-bf0d-7f106768b267

Catalogue record

Date deposited: 08 Jan 2021 17:33
Last modified: 26 Nov 2021 00:03

Export record

Altmetrics

Contributors

Author: Deanne L. Coppejans

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×