论文标题
黑寡妇脉冲星PSR J1555-2908的发现，时机和多波长观测值
Discovery, Timing, and Multiwavelength Observations of the Black Widow Millisecond Pulsar PSR J1555-2908
论文作者
论文摘要
我们报告了PSR J1555-2908的发现，1.79毫秒的无线电和伽马射线PULSAR在5.6小时二进制系统中发现，最小同伴质量为0.052 $ m_ \ odot $。 This fast and energetic ($\dot E = 3 \times 10^{35}$ erg/s) millisecond pulsar was first detected as a gamma-ray point source in Fermi LAT sky survey observations.在费米误差区域中陡峭的频谱无线电点源的指导下，我们对绿色库望远镜进行了820 MHz的搜索，该望远镜首先发现了脉动。最初的无线电脉冲正时观察结果提供了足够的信息，可以在LAT数据中进行搜索搜索伽马射线脉动，我们从中得出了一个适合完整费米任务的时序解决方案。除了无线电和伽马射线脉动发现和时机外，我们还使用更好的X射线脉动搜索了X射线脉动，但未检测到显着的脉动。我们还获得了时间序列R波段光度法，表明脉冲星风对伴侣恒星的加热。在伴侣的下部连接期间，加热的伴侣的材料将约10％的轨道的底部连接期多820 MHz无线电脉冲，这是其在边缘系统中由Roche Lobe缩减的角度的两倍。
We report the discovery of PSR J1555-2908, a 1.79 ms radio and gamma-ray pulsar in a 5.6 hr binary system with a minimum companion mass of 0.052 $M_\odot$. This fast and energetic ($\dot E = 3 \times 10^{35}$ erg/s) millisecond pulsar was first detected as a gamma-ray point source in Fermi LAT sky survey observations. Guided by a steep spectrum radio point source in the Fermi error region, we performed a search at 820 MHz with the Green Bank Telescope that first discovered the pulsations. The initial radio pulse timing observations provided enough information to seed a search for gamma-ray pulsations in the LAT data, from which we derive a timing solution valid for the full Fermi mission. In addition to the radio and gamma-ray pulsation discovery and timing, we searched for X-ray pulsations using NICER but no significant pulsations were detected. We also obtained time-series r-band photometry that indicates strong heating of the companion star by the pulsar wind. Material blown off the heated companion eclipses the 820 MHz radio pulse during inferior conjunction of the companion for ~10% of the orbit, which is twice the angle subtended by its Roche lobe in an edge-on system.
