• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Astrophysical journal >DISCOVERY OF RADIO PULSATIONS FROM THE X-RAY PULSAR J0205+6449 IN SUPERNOVA REMNANT 3C 58 WITH THE GREEN BANK TELESCOPE
【24h】

DISCOVERY OF RADIO PULSATIONS FROM THE X-RAY PULSAR J0205+6449 IN SUPERNOVA REMNANT 3C 58 WITH THE GREEN BANK TELESCOPE

机译：用绿行望远镜探测超新星残骸3C 58中X射线脉冲J0205 + 6449的无线电脉冲。

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We report the discovery with the 100 m Green Bank Telescope of 65 ms radio pulsations from the X-ray pulsar J0205+6449 at the center of supernova remnant 3C 58, making this possibly the youngest radio pulsar known. From our observations at frequencies of 820 and 1375 MHz, the free-electron column density to PSR J0205+6449 is found to be 140.7 +- 0.3 cm~(-3) pc. The barycentric pulsar period P and period derivative P determined from a phase-coherent timing solution are consistent with the values previously measured from X-ray observations. The averaged radio profile of PSR J0205+6449 consists of one sharp pulse of width ≈3 ms ≈ 0.05P. The pulsar is an exceedingly weak radio source, with a pulse-averaged flux density in the 1400 MHz band of ～45 μJy and a spectral index of ～-2.1. Its radio luminosity of ～0.5 mJy kpc~2 at 1400 MHz is lower than that of ～99% of known pulsars and is the lowest among known young pulsars.
机译：我们用100 m Green Bank望远镜报告了来自超新星残骸3C 58中心的X射线脉冲星J0205 + 6449的65毫秒无线电脉冲的发现，这可能是已知的最年轻的无线电脉冲星。根据我们在820和1375 MHz频率下的观察，发现PSR J0205 + 6449的自由电子柱密度为140.7±0.3 cm〜（-3）pc。由相位相干定时解确定的重心脉冲星周期P和周期导数P与先前从X射线观测中测得的值一致。 PSR J0205 + 6449的平均无线电剖面由一个宽度≈3ms≈0.05P的尖锐脉冲组成。脉冲星是一种非常弱的无线电源，在1400 MHz频带内的脉冲平均通量密度为〜45μJy，光谱指数为〜-2.1。在1400 MHz时，其辐射光度为〜0.5 mJy kpc〜2，低于已知脉冲星的〜99％，并且在已知的年轻脉冲星中最低。

著录项

相似文献

  • 外文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号