Relations Between Timing Features and Colors in Accreting Millisecond Pulsars

Abstract

We have studied the aperiodic X-ray timing and color behavior of the accreting millisecond pulsars SAX J1808.4-3658, XTE J1751-305, XTE J0929-314, and XTE J1814-338 using large data sets obtained with the Rossi X-ray Timing Explorer. We find that the accreting millisecond pulsars have very similar timing properties to the atoll sources and the low luminosity bursters. Based on the correlation of timing and color behavior SAX J1808.4-3658 can be classified as an atoll source, and XTE J0929-314 and XTE J1814-338 are consistent with being atoll sources, but the color behavior of XTE J1751-305 is different. Unlike in other atoll sources the hard color in the extreme island state of XTE J1751-305 is strongly correlated with soft color and intensity, and is not anti-correlated with any of the characteristic frequencies. We found previously, that the frequencies of the variability components of atoll sources follow a universal scheme of correlations. The frequency correlations of the accreting millisecond pulsars are similar, but in the case of SAX J1808.4-3658 and XTE J0929-314 shifted compared to those of the other atoll sources in a way that is most easily described as a shift in upper and lower kilohertz QPO frequency by a factor close to 1.5. Although, we note that the shift in lower kilohertz QPO frequency is based on only one observation for SAX J1808.4-3658. XTE J1751-305 and XTE J1814-338, as well as the low luminosity bursters show no or maybe small shifts.

arXiv comment46 pages, 23 figures, ApJ accepted

References in corpus (42)

• Lense-Thirring Precession and QPOs in Low Mass X-Ray Binaries
• A Unified Description of the Timing Features of Accreting X-ray Binaries
• Sonic-Point Model of Kilohertz Quasi-Periodic Brightness Oscillations in Low-Mass X-ray Binaries
• Nuclear-Powered Millisecond Pulsars and the Maximum Spin Frequency of Neutron Stars
• Correlations in Quasi-Periodic Oscillation and Noise Frequencies Among Neutron-Star and Black-Hole X-ray Binaries
• The two-hour orbit of a binary millisecond X-ray pulsar
• The broad-band power spectra of X-ray binaries
• Hard X-ray Emission From Low Mass X-ray Binaries
• Long Term Variability of Cyg X-1 I. X-ray spectral-temporal correlations in the hard state
• Non-linear resonance in nearly geodesic motion in low-mass X-ray binaries
• Discovery of a Second Millisecond Accreting Pulsar: XTE J1751-305
• Discovery of a High-Latitude Accreting Millisecond Pulsar in an Ultracompact Binary
• Dependence of the Frequency of the Kilohertz Quasi-Periodic Oscillations on X-ray Count Rate and Colors in 4U 1608-52
• The atoll source states of 4U 1608-52
• Quasi-periodic X-ray brightness fluctuations in an accreting millisecond pulsar
• A multi-Lorentzian timing study of the atoll sources 4U 0614+09 and 4U 1728-34
• RXTE observations of the neutron star low-mass X-ray binary GX 17+2: correlated X-ray spectral and timing behavior
• X-ray Bursts from the Accreting Millisecond Pulsar XTE J1814-338
• A Possible Explanation for the "Parallel Tracks" Phenomenon in Low-Mass X-Ray Binaries
• Relations Between Timing Features and Colors in the X-Ray Binary 4U 0614+09
• How Do Z and Atoll X-ray Binaries Differ?
• The X-ray spectrum of the atoll source 4U 1608-52
• The Amplitude of the Kilohertz Quasi-periodic Oscillations in 4U 1728-34, 4U 1608-52, and Aql X-1, as a Function of X-ray Intensity
• Phase-resolved X-ray spectroscopy of the millisecond pulsar SAX J1808.4-3658
• Study of the Temporal Behavior of 4U 1728-34 as a Function of its Position in the Color-Color Diagram
• The first outburst of SAX J1808.4-3658 revisited
• A peculiar spectral state transition of 4U1705--44: when an Atoll looks like a Z
• Simultaneous Measurements of X-Ray Luminosity and Kilohertz Quasi-Periodic Oscillations in Low-Mass X-Ray Binaries
• On the Magnetospheric Beat-Frequency and Lense-Thirring Interpretations of the Horizontal Branch Oscillation in the Z Sources
• A comment on the colour-colour diagrams of Low Mass X-ray Binaries
• The broad-band power spectrum of SAX J1808.4-3658
• Discovery of kilohertz quasi-periodic oscillations in the Z source GX 340+0
• The erratic luminosity behavior of SAX J1808.4-3658 during its 2000 outburst
• The X-ray Spectrum of SAX J1808.4-3658
• Correlated Timing and Spectral Variations of the Soft X-ray Transient Aquila X-1: Evidence for an Atoll classification
• Timing properties and spectral states in Aquila X-1
• Evidence of a decrease of kHz QPO peak separation towards low frequencies in 4U 1728-34 (GX 354-0)
• An observational review of accretion-driven millisecond X-ray pulsars
• Correlated timing and spectral behavior of 4U 1705-44
• A peculiar type-I X-ray burst from GRS 1747-312
• Effects of Resonance in Quasiperiodic Oscillators of Neutron Star Binaries
• Millisecond Oscillations During Thermonuclear X-ray Bursts

Cited by in corpus (70)

• Modelling the behaviour of accretion flows in X-ray binaries
• Jets in neutron star X-ray binaries: a comparison with black holes
• Detecting gravitational wave emission from the known accreting neutron stars
• Helium-rich thermonuclear bursts and the distance to the accretion-powered millisecond pulsar SAX J1808.4-3658
• X-ray time variability across the atoll source states of 4U 1636--53
• Accreting millisecond pulsar SAX J1808.4-3658 during its 2002 outburst: evidence for a receding disc
• XMM-Newton detects a relativistically broadened iron line in the spectrum of the ms X-ray pulsar SAX J1808.4-3658
• Accretion, Outflows, and Winds of Magnetized Stars
• Discovery of twin kHz QPOs in the peculiar X-ray binary Circinus X-1
• Identification of black hole power spectral components across all canonical states
• Transitional millisecond pulsars
• On the kHz QPO frequency correlations in bright neutron star X-ray binaries
• On the maximum amplitude and coherence of the kilohertz quasi-periodic oscillations in low-mass X-ray binaries
• RossiXTE monitoring of 4U 1636-53: I. Long-term evolution and kHz Quasi-Periodic Oscillations
• The influence of accretion geometry on the spectral evolution during thermonuclear (type-I) X-ray bursts
• Measurement of neutron star parameters: a review of methods for low-mass X-ray binaries
• Is there a link between the neutron-star spin and the frequency of the kilohertz quasi-periodic oscillations?
• 1 Hz flaring in SAX J1808.4--3658: flow instabilities near the propeller stage
• The accretion flow to the intermittent accreting ms pulsar, HETE J1900.1-2455, as observed by XMM-Newton and RXTE
• Discovery of kHz QPOs and shifted frequency correlations in the accreting millisecond pulsar XTE J1807--294
• "Hiccup" accretion in the swinging pulsar IGR J18245-2452
• The Reflares and Outburst Evolution in the Accreting Millisecond Pulsar SAX J1808.4-3658: a Disk Truncated Near Co-rotation?
• Analysis of variability in the burst oscillations of the accreting millisecond pulsar XTE J1814-338
• The influence of spin on jet power in neutron star X-ray binaries
• QPO emission from moving hot spots on the surface of neutron stars: a model
• Prolonged sub-luminous state of the new transitional pulsar candidate CXOU J110926.4-650224
• The correlations between the spin frequencies and kHz QPOs of Neutron Stars in LMXBs
• The Island state of the Atoll Source 4U 1820--30
• The identification of MAXI J1659-152 as a black hole candidate
• Correlation between radio luminosity and X-ray timing frequencies in neutron star and black hole X-ray binaries
• Investigation of the emission radii of kHz QPOs for the accreting millisecond X-Ray pulsars, Atoll and Z sources
• Evolution of cross-correlation and time lag of Cyg X-2 along the branches
• Type I X-ray bursts, burst oscillations and kHz quasi-periodic oscillations in the neutron star system IGR J17191-2821
• An accreting millisecond pulsar with black hole-like X-ray variability: IGR J00291+5934
• Pulse amplitude depends on kHz QPO frequency in the accreting millisecond pulsar SAX J1808.4-3658
• Testing the relativistic precession model using low frequency and kHz quasi-periodic oscillations in neutron star low mass X-ray binaries with known spin
• Timing Features of the Accretion--driven Millisecond X-Ray Pulsar XTE J1807--294 in 2003 March Outburst
• NICER Detects a Soft X-ray Kilohertz Quasi-periodic Oscillation in 4U 0614+09
• The aperiodic X-ray variability of the accreting millisecond pulsar SAX J1808.4-3658
• Millihertz quasi-periodic oscillations in 4U 1636-53 associated with bursts with positive convexity only
• Timing and spectral properties of the accreting millisecond pulsar SWIFT J1756.9-2508
• Rapid X-ray variability properties during the unusual very hard state in neutron-star low-mass X-ray binaries
• Discovery of kilohertz quasi-periodic oscillations and state transitions in the low-mass X-ray binary 1E~1724-3045 (Terzan 2)
• Simulating the shock dynamics of a neutron star accretion column
• High-frequency variability in neutron-star low-mass X-ray binaries
• Evolution of cross-correlation and time lag of 4U 1735-44 along the branches
• Statistical properties of twin kHz QPO in neutron star LMXBs
• A Deep Pulse Search in Eleven Low Mass X-Ray Binaries
• A model-independent comparison of the variability of accreting neutron stars and black holes
• The AstroSat observation of accreting millisecond X-ray pulsar SAX J1808.4-3658 during its 2019 outburst
• Constraining the Coronal Heights and Readjustment Velocities Based on the Detection of a Few Hundred Seconds Delays in the Z Source GX 17+2
• The stochastic X-ray variability of the accreting millisecond pulsar MAXI J0911-655
• MHD Simulations of Magnetospheric Accretion, Ejection and Plasma-field Interaction
• Phase lags of quasi-periodic oscillations across source states in the low-mass X-ray binary 4U 1636-53
• Testing jet geometries and disk-jet coupling in the neutron star LMXB 4U 0614+091 with the internal shocks model
• Broad iron emission line and kilohertz quasi-periodic oscillations in the neutron star system 4U 1636-53
• On the frequency correlations of low-frequency QPOs with kilohertz QPOs in accreting millisecond X-ray pulsars
• Discovery of 1-5 Hz flaring at high luminosity in SAX J1808.4-3658
• Possible twin kHz Quasi Periodic Oscillations in the accreting millisecond X-ray Pulsar IGR J17511-3057
• Constraints on kHz QPO models and stellar EOSs from SAX J1808.4-3658, Cyg X-2 and 4U 1820-30
• Correlations between the frequencies of twin kHz QPOs and spins of neutron stars in LMXBs
• Detection of a strong ~2.5 Hz modulation in the Newly Discovered Millisecond Pulsar MAXI J1816-195
• The Cross Spectral Time lags evolution along branches in XTE J1701-462
• Discovery of twin kHz quasi periodic oscillations in the low mass X-ray binary XTE J1701-407
• Probing the accretion disc structure by the twin kHz QPOs and spins of neutron stars in LMXBs
• The accretion rate independence of horizontal branch oscillation in XTE J1701-462
• Quasi-periodic pulse amplitude modulation in the accreting millisecond pulsar IGR J00291+5934
• Swinging between rotation and accretion power in a binary millisecond pulsar
• Application of the relativistic precession model to the accreting millisecond X-ray pulsar IGR J17511-3057
• The stochastic X-ray variability of the accreting millisecond pulsar IGR J17062-6143