论文标题
GBT 350-MHz漂移扫描PULSAR调查。 iii。在PSR J2256-1024的黯淡材料中检测磁场
The GBT 350-MHz Drift Scan Pulsar Survey. III. Detection of a magnetic field in the eclipsing material of PSR J2256-1024
论文作者
论文摘要
我们介绍了黑寡妇脉冲星的黯然失色材料中非零磁场的第一个测量。黑寡妇是毫无疑问的脉冲星，它们正在消灭他们的同伴。因此，通常提出它们是孤立的毫秒脉冲星的潜在来源。 PSR J2256-1024是一种在无线电波长下发现的黑寡妇，后来在光谱的X射线和伽马部分中也观察到。在这里，我们介绍了PSR J2256-1024的无线电定时解决方案，350、820和1500〜MHz的极化概况以及由于系统中黯然失色的材料而引起的极化曲线变化的研究。在后者中，我们发现了日食后不久的线性极化中法拉第旋转的证据，测量旋转度量为0.44（6）RAD /米平方，相应的视线磁场为3.5（17）mg。
We present the first measurement of a non-zero magnetic field in the eclipsing material of a black widow pulsar. Black widows are millisecond pulsars which are ablating their companions; therefore they are often proposed as one potential source of isolated millisecond pulsars. PSR J2256-1024 is an eclipsing black widow discovered at radio wavelengths and later also observed in the X-ray and gamma parts of the spectrum. Here we present the radio timing solution for PSR J2256-1024, polarization profiles at 350, 820, and 1500~MHz and an investigation of changes in the polarization profile due to eclipsing material in the system. In the latter we find evidence of Faraday rotation in the linear polarization shortly after eclipse, measuring a rotation measure of 0.44(6) rad per meter squared and a corresponding line-of-sight magnetic field of 3.5(17) mG.
