Linking the X-ray timing and spectral properties of the glitching AXP 1RXS J170849-400910

Abstract

Previous studies of the X-ray flux and spectral properties of 1RXS J170849-400910 showed hints of a possible correlation with the spin glitches that occurred in 1999 and 2001. However, due to the sparseness of spectral measurements and the paucity of detected glitches no firm conclusion could be drawn. We retrieved and analysed archival XTE pointings of 1RXS J170849-400910 covering the time interval between January 2003 and June 2006 and carried out a detailed timing analysis by means of phase fitting techniques. We detected two relatively large glitches Delta nu / nu of 1.2 and 2.1 10^-6 occurred in January and June 2005. Interestingly, the occurrence times of these glitches are in agreement with the predictions made in our previous studies. This finding strongly suggests a connection between the flux, spectral and timing properties of 1RXS J170849-400910.

arXiv commentSubmitted to A&A, 4 pages; results presented at the INT meeting "The Neutron Star Crust and Surface: Observations and Models" on June 27; referee comments added

References in corpus (14)

• Electrodynamics of Magnetars: Implications for the Persistent X-ray Emission and Spindown of the Soft Gamma Repeaters and Anomalous X-ray Pulsars
• Corona of Magnetars
• Neutron star magnetic field evolution, crust movement and glitches
• Glitches in Southern Pulsars
• A Glitch in an Anomalous X-ray Pulsar
• Post-glitch variability in the Anomalous X-ray Pulsar 1RXS J170849.0-400910
• Further evidence that 1RXS J170849.0-400910 is an Anomalous X-ray pulsar
• The IR counterpart to the Anomalouos X-ray Pulsar 1RXS J1708-4009
• A Second Glitch from the "Anomalous" X-ray Pulsar 1RXS J170849.0-4000910
• A first look with Chandra at SGR 1806-20 after the Giant Flare: significant spectral softening and rapid flux decay
• Swift and Chandra confirm the intensity-hardness correlation of the AXP 1RXS J170849.0-400910
• Intensity-hardness correlation and deep infrared observation of the anomalous X-ray pulsar 1RXS J170849-400910
• The pulse phase-dependent spectrum of the anomalous X-ray pulsar 1RXS J170849-400910
• Long term hard X-ray variability of the anomalous X-ray pulsar 1RXS J170849.0-400910 discovered with INTEGRAL

Cited by in corpus (21)

• The strongest cosmic magnets: Soft Gamma-ray Repeaters and Anomalous X-ray Pulsars
• Early evolution of newly born magnetars with a strong toroidal field
• 16 Years of RXTE Monitoring of Five Anomalous X-ray Pulsars
• A Swift gaze into the 2006 March 29th burst forest of SGR 1900+14
• Magnetar outbursts: an observational review
• Resonant cyclotron scattering in magnetars' emission
• Modeling magnetar outbursts: Flux enhancements and the connection with short bursts and glitches
• RXTE Monitoring of the Anomalous X-ray Pulsar 1E 1048.1-5937: Long-Term Variability and the 2007 March Event
• Detailed high-energy characteristics of AXP 1RXS J170849-400910 - Probing the magnetosphere using INTEGRAL, RXTE and XMM-Newton
• Magnetars: a short review and some sparse considerations
• Timing behavior of the Magnetically Active Rotation-Powered Pulsar in the Supernova Remnant Kestevan 75
• The 2006-2007 Active Phase of Anomalous X-ray Pulsar 4U 0142+61: Radiative and Timing Changes, Bursts, and Burst Spectral Features
• The 2008 October Swift detection of X-ray bursts/outburst from the transient SGR-like AXP 1E 1547.0-5408
• Pulsars and magnetars
• Glitch recoveries in radio-pulsars and magnetars
• A glitch and an anti-glitch in the anomalous X-ray pulsar 1E 1841-045
• Long-term spectral and timing properties of the soft gamma-ray repeater SGR 1833-0832 and detection of extended X-ray emission around the radio pulsar PSR B1830-08
• The 2006 Outburst of the Magnetar CXOU J164710.2-455216
• On the X-ray variability of magnetar 1RXS J170849.0-400910
• Searching for X-ray Variability in the Glitching Anomalous X-ray Pulsar 1E 1841-045 in Kes 73
• Long-Term Timing and Glitch Characteristics of Anomalous X-ray Pulsar 1RXS J170849.0-400910