Transient pulsed radio emission from a magnetar

  title={Transient pulsed radio emission from a magnetar},
  author={Fernando Camilo and Scott M. Ransom and Jules P. Halpern and J. Reynolds and David J. Helfand and Neil T. Zimmerman and John M. Sarkissian},
Anomalous X-ray pulsars (AXPs) are slowly rotating neutron stars with very bright and highly variable X-ray emission that are believed to be powered by ultra-strong magnetic fields of >1014 G, according to the ‘magnetar’ model. The radio pulsations that have been observed from more than 1,700 neutron stars with weaker magnetic fields have never been detected from any of the dozen known magnetars. The X-ray pulsar XTE J1810 - 197 was revealed (in 2003) as the first AXP with transient emission… 
Bright X-ray and Radio Pulses from a Recently Reactivated Magnetar
Magnetars are young, rotating neutron stars that possess larger magnetic fields (B ≈ 10¹³-10¹⁵G) and longer rotational periods (P ≈ 1-12 s) than ordinary pulsars. In contrast to rotation-powered
A Magnetar-like Outburst from a High-B Radio Pulsar
Radio pulsars are believed to have their emission powered by the loss of rotational kinetic energy. By contrast, magnetars show intense X-ray and gamma-ray radiation whose luminosity greatly exceeds
We have searched for persistent radio pulsations, bright single pulses, and bursts from four southern anomalous X-ray pulsars (AXPs). Deep observations were conducted at 1.4 GHz in 1999 July and
A transient, flat spectrum radio pulsar near the Galactic Centre
Recent studies have shown possible connections between highly magnetized neutron stars ('magnetars'), whose X-ray emission is too bright to be powered by rotational energy, and ordinary radio
New Limits on Radio Emission from X-ray Dim Isolated Neutron Stars
We have carried out a search for radio emission at 820 MHz from six X-ray dim isolated neutron stars (XDINSs) with the Robert C. Byrd Green Bank Radio Telescope. No transient or pulsed emission was
The fundamental plane for radio magnetars
High magnetic fields are a distinguishing feature of neutron stars and the existence of sources (the soft gamma repeaters, SGRs, and the anomalous X-ray pulsars) hosting an ultramagnetized neutron
PSR J1119–6127 and the X-ray emission from high magnetic field radio pulsars
Abstract The existence of radio pulsars having inferred magnetic fields in the magnetar regime suggests that possible transition objects could be found in the radio pulsar population. The discovery
A Radio-loud Magnetar in X-ray Quiescence
As part of a survey for radio pulsars with the Parkes 64 m telescope, we have discovered PSR J1622-4950, a pulsar with a 4.3 s rotation period. Follow-up observations show that the pulsar has the
A Low-Magnetic-Field Soft Gamma Repeater
The magnetar population may include objects with a wider range of B-field strengths, ages, and evolutionary stages than observed so far, implying that this population is wider than was previously thought.
On the X-ray light curve, pulsed-radio emission, and spin frequency evolution of the transient anomalous X-ray pulsar XTE J1810-197 during its X-ray outburst
Weshow that (1) the long-term X-ray outburst light curve of the transient AXP XTE J1810� 197 can beaccounted for by a fallback disk that is evolving toward quiescence through a disk instability after


Discovery of Radio Emission From Transient Anomalous X-Ray Pulsar XTE J1810-197
We report the first detection of radio emission from any anomalous X-ray pulsar (AXP). Data from the Very Large Array (VLA) MAGPIS survey with angular resolution 6'' reveals a point-source of flux
The Fading of Transient Anomalous X-Ray Pulsar XTE J1810-197
Three observations of the 5.54 s transient anomalous X-ray pulsar XTE J1810-197 obtained over 6 months with the Newton X-ray Multi-Mirror (XMM-Newton) mission are used to study its spectrum and
On the Radio Quiescence of Anomalous X-Ray Pulsars and Soft Gamma-Ray Repeaters
In the hot environments of the anomalous X-ray pulsars (AXPs) and the soft gamma-ray repeaters (SGRs), as indicated by their luminous, pulsed, quiescent X-ray emission, gamma rays generated from the
High-Energy Emission from Magnetars
The recently discovered soft gamma-ray emission from the anomalous X-ray pulsar 1E 1841-045 has a luminosity Lγ ~ 1036 ergs s-1. This luminosity exceeds the spin-down power by 3 orders of magnitude
Chandra X-ray Detection of the High-Magnetic-Field Radio Pulsar PSR J1718-3718
We report on the serendipitous X-ray detection, using the Chandra X-Ray Observatory, of the radio pulsar PSR J1718-3718. This pulsar has one of the highest inferred surface dipole magnetic fields in
Chandra X-ray Detection of the High-Magnetic-Field Radio Pulsar PSR J 1718 − 3718
We report on the serendipitous X-ray detection, using the Chandra X-ray Observatory, of the radio pulsar PSR J1718−3718. This pulsar has one of the highest inferred surface dipole magnetic fields in
Radio Emission from Magnetars
We discuss properties of the expected radio emission from soft gamma-ray repeaters (SGRs) during their bursting activity in the framework of the model of Thompson, Lyutikov, & Kulkarni, in which the
Transient radio bursts from rotating neutron stars
A search for radio sources that vary on much shorter timescales, finding eleven objects characterized by single, dispersed bursts having durations between 2 and 30 ms, suggesting origins in rotating neutron stars.
Discovery of a transient magnetar: XTE J1810-197
We report the discovery of a new X-ray pulsar, XTE J1810-197, that was serendipitously discovered on 2003 July 15 by the Rossi X- Ray Timing Explorer (RXTE) while observing the soft gamma repeater
Discovery of the X-Ray Counterpart to the Rotating Radio Transient J1819-1458
We present the discovery of the first X-ray counterpart to a Rotating RAdio Transient (RRAT) source. RRAT J1819-1458 is a relatively highly magnetized (B ~ 5 × 1013 G) member of a new class of