PSR J1740-5340: accretion inhibited by radio-ejection in a binary millisecond pulsar in the Globular Cluster NGC 6397

Abstract

We present an evolutionary scenario for the spin-up and evolution of binary millisecond pulsars, according to which the companion of the pulsar PSR J 1740-5340, recently discovered as a binary with orbital period of 32.5 hr in the Globular Cluster NGC 6397, is presently in a phase of ``radio-ejection'' mass loss from the system. At present, Roche lobe overflow due to the nuclear evolution of the pulsar companion and to systemic angular momentum losses by magnetic braking is still going on, but accretion is inhibited by the momentum exerted by the radiation of the pulsar on the matter at the inner Lagrangian point. The presence of this matter around the system is consistent with the long lasting irregular radio eclipses seen in the system. Roche lobe deformation of the mass losing component is also necessary to be compatible with the optical light curve. The "radio-ejection" phase had been recently postulated by us to deal with the problem of the lack of submillisecond pulsars (Burderi et al. 2001, ApJ, 560, L71).

Accepted for publication in The Astrophysical Journal

Cited by in corpus (48)

• Formation of millisecond pulsars with CO white dwarf companions - II. Accretion, spin-up, true ages and comparison to MSPs with He white dwarf companions
• The Galactic Population of Low- and Intermediate-Mass X-ray Binaries
• An XMM-Newton study of the 401 Hz accreting pulsar SAX J1808.4-3658 in quiescence
• Chandra Study of a Complete Sample of Millisecond Pulsars in 47Tuc and NGC6397
• Evolution and colours of helium-core white dwarf stars: the case of low metallicity progenitors
• Orbital Evolution of an Accreting Millisecond Pulsar: Witnessing the Banquet of a Hidden Black Widow?
• The Optical Counterpart to SAX J1808.4-3658 in Quiescence: Evidence of an Active Radio Pulsar?
• Transitional millisecond pulsars
• X-ray Studies of Two Neutron Stars in 47 Tucanae: Toward Constraints on the Equation of State
• A Chandra X-ray Observatory Study of PSR J1740--5340 and Candidate Millisecond Pulsars in the Globular Cluster NGC 6397
• Low Mass X-ray Binaries: The Effects of the Magnetic Braking Prescription
• A Millisecond Pulsar Optical Counterpart with Large-Amplitude Variability in the Globular Cluster 47 Tucanae
• Three Binary Millisecond Pulsars in NGC 6266
• Formation of Millisecond Pulsars from Intermediate- and Low-Mass X-ray Binaries
• On the formation of eccentric millisecond pulsars with helium white-dwarf companions
• Constraints on the Neutron Star Magnetic Field of the two X-ray Transients SAX J1808.4-3658 and Aql X-1
• A Search for Pulsars in Quiescent Soft X-Ray Transients. I
• Novel modelling of ultra-compact X-ray binary evolution - stable mass transfer from white dwarfs to neutron stars
• Accreting pulsars: mixing-up accretion phases in transitional systems
• The eclipsing millisecond pulsar PSR J1740-5340 and its red straggler companion
• Accurate mass ratio and heating effects in the dual-line millisecond binary pulsar in NGC 6397
• Spin Period Evolution of Recycled Pulsar in Accreting Binary
• Spectral and timing properties of IGR J00291+5934 during its 2015 outburst
• Three Additional Quiescent Low-Mass X-ray Binary Candidates in 47 Tucanae
• Optical Identification of He White Dwarfs Orbiting Four Millisecond Pulsars in the Globular Cluster 47 Tucanae
• Discovery of a millisecond pulsar in the 5.4 day binary 3FGL J1417.5-4402: observing the late phase of pulsar recycling
• The complex Halpha line profile of the bright companion to PSR J1740-5340 in NGC 6397
• The bifurcation periods in low-mass X-ray binaries: the effect of magnetic braking and mass loss
• The Quasi-Roche lobe overflow state in the evolution of Close Binary Systems containing a radio pulsar
• New clues on the nature of the companion to PSR~J1740-5340 in NGC6397 from XSHOOTER spectroscopy
• Helium-Core White Dwarfs in Globular Clusters
• The Clusters AgeS Experiment (CASE). I. V209 omega Cen - An Eclipsing Post-Common Envelope Binary in the Globular Cluster omega Cen
• Photometry and Spectroscopy of the Optical Companion to the Pulsar PSR J1740-5340 in the Globular Cluster NGC 6397
• Binary Pulsars in Magnetic Field versus Spin Period Diagram
• Peering at the outflow mechanisms in the transitional pulsar PSR J1023+0038: simultaneous VLT, XMM-Newton, and Swift high-time resolution observations
• Eclipsing binary millisecond pulsar PSR J1740-5340 -- evolutionary considerations and observational test
• An evolutionary channel towards the accreting millisecond pulsar SAX J1808.4-3658
• The minimum magnetic field of millisecond pulsars calculated according to accretion: application to the X-ray neutron star SAX J1808.4-3658 in a low-mass X-ray binary
• Radio-ejection and bump-related orbital period gap of millisecond binary pulsars
• Pulsar Positioning System: A quest for evidence of extraterrestrial engineering
• The near-IR counterpart of IGR J17480-2446 in Terzan 5
• On the peculiar long-term orbital evolution of the eclipsing accreting millisecond X-ray pulsar SWIFT J1749.4-2807
• Constraining the ellipticity of millisecond pulsars with observed spin-down rates
• Neutron Stars and Black Holes in Star Clusters
• Rapid orbital expansion in millisecond pulsar PSR J0636+5128: evaporation winds?
• X-rays from the Eclipsing Millisecond Pulsar PSR J1740-5340 in the Globular Cluster NGC 6397
• Stellar Evolution in Close Binaries: Processes and Outcomes
• On Pulsar-Driven Mass Ejection in Low-Mass X-ray Binaries