The influence of spin on jet power in neutron star X-ray binaries

Abstract

We investigate the role of the compact object in the production of jets from neutron star X-ray binaries. The goal is to quantify the effect of the neutron star spin, if any, in powering the jet. We compile all the available measures or estimates of the neutron star spin frequency in jet-detected neutron star X-ray binaries. We use as an estimate of the ranking jet power for each source, the normalisation of the power law which fits the X-ray/radio and X-ray/infrared luminosity correlations L_(radio/IR) proportional to L_(X)^(Gamma) (using infrared data for which there is evidence for jet emission). We find a possible relation between spin frequency and jet power (Spearman rank 97%), when fitting the X-ray/radio luminosity correlation using a power law with slope 1.4; Gamma=1.4 is observed in 4U 1728-34 and is predicted for a radiatively efficient disc and a total jet power proportional to the mass accretion rate. If we use a slope of 0.6, as observed in Aql X-1, no significant relation is found. An indication for a similar positive correlation is also found for accreting millisecond X-ray pulsars (Spearman rank 92%), if we fit the X-ray/infrared luminosity correlation using a power law with slope 1.4. While our use of the normalisation of the luminosity correlations as a measure of the ranking jet power is subject to large uncertainties, no better proxy for the jet power is available. However, we urge caution in over-interpreting the spin-jet power correlations, particularly given the strong dependence of our result on the (highly uncertain) assumed power law index of the luminosity correlations. We discuss the results in the framework of current models for jet formation in black holes and young stellar objects and speculate on possible different jet production mechanisms for neutron stars depending on the accretion mode.

Accepted for publication in MNRAS

References in corpus (15)

• X-ray Properties of Black-Hole Binaries
• Which jet launching mechanism(s) in TTauri stars?
• Global optical/infrared - X-ray correlations in X-ray binaries: quantifying disc and jet contributions
• Detecting gravitational wave emission from the known accreting neutron stars
• Discovery of coherent millisecond X-ray pulsations in Aql X-1
• Jet-dominated advective systems: radio and X-ray luminosity dependence on the accretion rate
• A transient radio jet in an erupting dwarf nova
• Intermittent millisecond X-ray pulsations from the neutron-star X-ray transient SAX J1748.9-2021 in the globular cluster NGC 6440
• The variability plane of accreting compact objects
• Evidence for a jet contribution to the optical/infrared light of neutron star X-ray binaries
• Spitzer Reveals Infrared Optically-Thin Synchrotron Emission from the Compact Jet of the Neutron Star X-Ray Binary 4U 0614+091
• Linking Jet Emission, X-ray States and Hard X-ray Tails in the Neutron Star X-ray Binary GX 17+2
• Observations of the 599 Hz Accreting X-ray Pulsar IGR J00291+5934 during the 2004 Outburst and in Quiescence
• The variable radio counterpart and possible large-scale jet of the new Z-source XTE J1701-462
• A transient I band excess in the optical spectrum of the accreting millisecond pulsar SAX J1808.4-3658

Cited by in corpus (31)

• Jet spectral breaks in black hole X-ray binaries
• Torque Enhancement, Spin Equilibrium, and Jet Power from Disk-Induced Opening of Pulsar Magnetic Fields
• Hard state neutron star and black hole X-ray binaries in the radio:X-ray luminosity plane
• Observational constraints on the powering mechanism of transient relativistic jets
• Radio imaging observations of PSR J1023+0038 in an LMXB state
• Disk-jet coupling in low-luminosity accreting neutron stars
• Simultaneous Chandra and VLA Observations of the Transitional Millisecond Pulsar PSR J1023+0038: Anti-correlated X-ray and Radio Variability
• A new radio census of neutron star X-ray binaries
• Theory of Disk Accretion onto Magnetic Stars
• The first low-mass black hole X-ray binary identified in quiescence outside of a globular cluster
• Disc-Jet Coupling in the Terzan 5 Neutron Star X-ray Binary EXO 1745$-$248
• ALMA observations of 4U 1728-34 and 4U 1820-30: first detection of neutron star X-ray binaries at 300 GHz
• Radio and X-ray observations of jet ejection in Cygnus X-2
• What is on Tap? The Role of Spin in Compact Objects and Relativistic Jets
• Radio and X-ray monitoring of the accreting millisecond X-ray pulsar IGR J17591-2342 in outburst
• Quasi-simultaneous radio and X-ray observations of Aql X-1: probing low luminosities
• The Flare-Dominated Accretion Mode of a Radio-Bright Candidate Transitional Millisecond Pulsar
• Radio emission from the X-ray pulsar Her X-1: a jet launched by a strong magnetic field neutron star?
• The MAVERIC Survey: Variable Jet-Accretion Coupling in Luminous Accreting Neutron Stars in Galactic Globular Clusters
• A radio frequency study of the accreting millisecond X-ray pulsar, IGR J16597$-$3704, in the globular cluster NGC 6256
• A MeerKAT Survey of Nearby Novalike Cataclysmic Variables
• The accretion/ejection link in the neutron star X-ray binary 4U 1820-30 I: A boundary layer-jet coupling?
• Constraining the Coronal Heights and Readjustment Velocities Based on the Detection of a Few Hundred Seconds Delays in the Z Source GX 17+2
• Observations of the Ultra-compact X-ray Binary 4U 1543-624 in Outburst with NICER, INTEGRAL, Swift, and ATCA
• Paving the way to simultaneous multi-wavelength astronomy
• Discovery of radio emission from the symbiotic X-ray binary system GX 1+4
• Testing jet geometries and disk-jet coupling in the neutron star LMXB 4U 0614+091 with the internal shocks model
• Quasi-Simultaneous Radio/X-ray Observations of the Candidate Transitional Millisecond Pulsar 3FGL J1544.6-1125 During its Low-Luminosity Accretion-Disc State
• A model for the radio/X-ray correlation in three neutron star low-mass X-ray binaries 4U 1728-34, Aql X-1 and EXO 1745-248
• Accretion Disc-Jet Couplings in X-ray Binaries
• How to distinguish an actual astrophysical magnetized black hole mimicker from a true (theoretical) black hole