标题： 新软伽马重复源SGR 1627-41的发现 显示英文标题

标题： Discovery of a New Soft Gamma Repeater, SGR 1627-41

摘要： 我们报告发现了一个新的软伽马射线重复暴（SGR），SGR 1627-41，并展示了BATSE对爆发辐射的观测结果以及BeppoSAX NFI对该SGR可能的持续X射线对应体的观测结果。 除一次爆发光谱外，其余爆发光谱均能很好地用一个光学薄热轫致辐射（OTTB）模型拟合，kT值在25到35 keV之间。 X射线对应体的光谱，SAX J1635.8-4736，与其他持续SGR X射线对应体的光谱类似。 我们在这个源的光变曲线中发现了周期信号的弱证据，周期为6.41秒。 与其他SGR一样，这个源似乎与一个年轻的超新星遗迹G337.0-0.1有关。 根据从这个SGR观测到的爆发峰值光度，我们发现中子星的偶极磁场有一个下限，B_dipole > 5 * 10^14 高斯。 显示英文摘要

摘要： We report the discovery of a new soft gamma repeater (SGR), SGR 1627-41, and present BATSE observations of the burst emission and BeppoSAX NFI observations of the probable persistent X-ray counterpart to this SGR. All but one burst spectrum are well fit by an optically thin thermal bremsstrahlung (OTTB) model with kT values between 25 and 35 keV. The spectrum of the X-ray counterpart, SAX J1635.8-4736, is similar to that of other persistent SGR X-ray counterparts. We find weak evidence for a periodic signal at 6.41 s in the light curve for this source. Like other SGRs, this source appears to be associated with a young supernova remnant G337.0-0.1. Based upon the peak luminosities of bursts observed from this SGR, we find a lower limit on the dipole magnetic field of the neutron star B_dipole > 5 * 10^14 Gauss.