X-Ray Bursts from the Accreting Millisecond Pulsar XTE J1814-338
نویسندگان
چکیده
منابع مشابه
X-ray Bursts from the Accreting Millisecond Pulsar XTE J1814-338
Since the discovery of the accreting millisecond pulsar XTE J1814-338 a total of 27 thermonuclear bursts have been observed from the source with the Proportional Counter Array (PCA) onboard the Rossi X-ray Timing Explorer (RXTE). Spectroscopy of the bursts, as well as the presence of continuous burst oscillations, suggests that all but one of the bursts are sub-Eddington. The remaining burst ha...
متن کاملDoes the accreting millisecond pulsar XTE J1814−338 precess?
Precession in an accretion-powered pulsar is expected to produce characteristic variations in the pulse properties. Assuming surface intensity maps with one and two hotspots, we compute theoretically the periodic modulation of the mean flux, pulsephase residuals and fractional amplitudes of the first and second harmonic of the pulse profiles. These quantities are characterised in terms of their...
متن کاملThe energy dependence of burst oscillations from the accreting millisecond pulsar XTE J1814-338
The nature of the asymmetry that gives rise to Type I X-ray burst oscillations on accreting neutron stars remains a matter of debate. Of particular interest is whether the burst oscillation mechanism differs between the bursting millisecond pulsars and the non-pulsing systems. One means to diagnose this is to study the energy dependence of the burst oscillations: here we present an analysis of ...
متن کاملCoherence of Burst Oscillations and Accretion-powered Pulsations in the Accreting Millisecond Pulsar Xte J1814-338
X-ray timing of the accretion-powered pulsations during the 2003 outburst of the accreting millisecond pulsar XTE J1814-338 has revealed variation in the pulse time of arrival residuals. These can be interpreted in several ways, including spin-down and wandering of the fuel impact point around the magnetic pole. In this Letter we show that the burst oscillations of this source are coherent with...
متن کاملTiming of the Accreting Millisecond Pulsar XTE J 1814 - 338
We present a precise timing analysis of the accreting millisecond pulsar XTE J1814– 338 during its 2003 outburst, observed by RXTE. A full orbital solution is given for the first time; Doppler effects induced by the motion of the source in the binary system were corrected, leading to a refined estimate of the orbital period, P orb = 15388.7229(2) s, and of the projected semimajor axis, a sin i/...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2003
ISSN: 0004-637X,1538-4357
DOI: 10.1086/379158