A Search for Pulsars in Quiescent Soft X-Ray Transients. I

Abstract

We have carried out a deep search at 1.4 GHz for radio pulsed emission from six soft X-ray transient sources observed during their X-ray quiescent phase. The commonly accepted model for the formation of the millisecond radio pulsars predicts the presence of a rapidly rotating, weakly magnetized neutron star in the core of these systems. The sudden drop in accretion rate associated with the end of an X-ray outburst causes the Alfvèn surface to move outside the light cylinder, allowing the pulsar emission process to operate. No pulsed signal was detected from the sources in our sample. We discuss several mechanisms that could hamper the detection and suggest that free-free absorption from material ejected from the system by the pulsar radiation pressure could explain our null result.

arXiv commentaccepted by ApJ

References in corpus (29)

• Lense-Thirring Precession and QPOs in Low Mass X-Ray Binaries
• The Parkes Multibeam Pulsar Survey: I. Observing and Data Analysis Systems, Discovery and Timing of 100 Pulsars
• Millisecond Oscillations in X-Ray Binaries
• The Properties of X-Ray and Optical Light Curves of X-Ray Novae
• Sonic-Point Model of Kilohertz Quasi-Periodic Brightness Oscillations in Low-Mass X-ray Binaries
• Crustal Heating and Quiescent Emission from Transiently Accreting Neutron Stars
• The two-hour orbit of a binary millisecond X-ray pulsar
• The characteristics of millisecond pulsar emission: I. Spectra, pulse shapes and the beaming fraction
• The Neutron Stars of Soft X-Ray Transients
• Observations of 20 millisecond pulsars in 47 Tucanae at 20 cm
• Pulsar Polar Cap Heating and Surface Thermal X-Ray Emission II. Inverse Compton Radiation Pair Fronts
• Discovery of a Second Millisecond Accreting Pulsar: XTE J1751-305
• Kilohertz QPO Peak Separation Is Not Constant in Scorpius X-1
• Discovery of a High-Latitude Accreting Millisecond Pulsar in an Ultracompact Binary
• The Disk-Magnetosphere Interaction in the Accretion-Powered Millisecond Pulsar SAX J1808.4-3658
• Precise Measurements of the Kilohertz Quasi-Periodic Oscillations in 4U 1728-34
• An XMM-Newton study of the 401 Hz accreting pulsar SAX J1808.4-3658 in quiescence
• A Chandra observation of the long-duration X-ray transient KS 1731-260 in quiescence: too cold a neutron star?
• An eclipsing millisecond pulsar with a possible main-sequence companion in NGC 6397
• Charting the temperature of the Hot Neutron Star in a Soft X-ray Transient
• Where May Ultra-Fast Rotating Neutron Stars Be Hidden?
• Quiescent Thermal Emission from the Neutron Star in Aql X-1
• The bright optical companion to the eclipsing millisecond pulsar in NGC 6397
• PSR J1740-5340: accretion inhibited by radio-ejection in a binary millisecond pulsar in the Globular Cluster NGC 6397
• The broad-band power spectrum of SAX J1808.4-3658
• A Firm Upper Limit to the Radius of the Neutron Star in SAX J1808.4-3658
• Searching for Pulsars in Close Binary Systems
• A BeppoSAX Observation of KS 1731-260 in its Quiescent State: Constraints on the NS Magnetic Field
• Very low luminosities from the accretion-driven millisecond X-ray pulsar SAX J1808.4-3658 during quiescence

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• A decade of timing an accretion-powered millisecond pulsar: The continuing spin down and orbital evolution of SAX J1808.4-3658
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• On the timing properties of SAX J1808.4-3658 during its 2015 outburst
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• Matter ejections behind the highs and lows of the transitional millisecond pulsar PSR J1023+0038
• SAX J1808.4-3658, an accreting millisecond pulsar shining in gamma rays?
• Timing analysis of the 2022 outburst of the accreting millisecond X-ray pulsar SAX J1808.4$-$3658: hints of an orbital shrinking
• Detecting gravitational waves from accreting neutron stars
• An Accurate Determination of the Optical Periodic Modulation in the X-Ray Binary SAX J1808.4-3658
• Constraints on Pulsar Evolution: The Joint Period-Spindown Distribution of Millisecond Pulsars
• The INTEGRAL view of the pulsating hard X-ray sky: from accreting and transitional millisecond pulsars to rotation-powered pulsars and magnetars
• Searching for pulsed emission from XTE J0929-314 at high radio frequencies
• New results on neutron star low mass transients in the quiescence
• On the peculiar long-term orbital evolution of the eclipsing accreting millisecond X-ray pulsar SWIFT J1749.4-2807
• Search for gamma-ray emission from four accreting millisecond pulsars with Fermi/LAT
• A Search for Millisecond-pulsar Radio Emission from the Faint Quiescent Soft X-ray Transient 1H 1905+000
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