• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>PASJ: Publications of the Astronomical Society of Japan >Suzaku X-ray spectroscopy of a peculiar hot star in the galactic center region
【24h】

Suzaku X-ray spectroscopy of a peculiar hot star in the galactic center region

机译：银河中心区域特有热星的朱雀X射线光谱

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 present the results of a Suzaku study of a bright point-like source in the 6.7 keV intensity map of the Galactic center region. We detected an intense Fe xxv 6.7 keV line with an equivalent width of similar to 1 keV as well as emission lines of highly ionized Ar and Ca from a spectrum obtained by the X-ray Imaging Spectrometer. The overall spectrum is described very well by a heavily absorbed (similar to 2 x 10(23) cm(-2)) thin thermal plasma model with a temperature of 3.8 +/- 0.6 keV and a luminosity of similar to 3 x 10(34) erg s(-1) (2.0-8.0 keV) at 8 kpc. The absorption, temperature, luminosity, and the 6.7 keV line intensity were confirmed with the archived XMM-Newton data. The source has a very red (J - K-s = 8.2 mag) infrared spectral energy distribution (SED), which was fitted by a blackbody emission of - 1000 K attenuated by a visual extinction of - 31 mag. The high plasma temperature and the large X-ray lluminosity are consistent with a wind-wind colliding Wolf-Rayet binary. The similarity of the SED to those of the eponymous Quintuplet cluster members suggests that the source is a WC-type source.
机译：我们在银河系中心区域的6.7 keV强度图中展示了一个亮点状源的朱雀研究结果。从X射线成像光谱仪获得的光谱中，我们检测到一条等效宽度类似于1 keV的强Fe xxv 6.7 keV线，以及高电离的Ar和Ca的发射线。光谱被很好吸收的（类似于2 x 10（23）cm（-2））薄热等离子体模型描述得很好，温度为3.8 +/- 0.6 keV，发光度接近3 x 10（ 34）8 kpc时的erg s（-1）（2.0-8.0 keV）。利用存档的XMM-Newton数据确认了吸收率，温度，发光度和6.7 keV线强度。该源具有非常红色的（J-K-s = 8.2 mag）红外光谱能量分布（SED），该分布通过-1000 K的黑体发射而被-31 mag的视觉消光衰减了。较高的等离子体温度和较大的X射线发光度与风-风碰撞Wolf-Rayet二元相一致。 SED与同名的Quintuplet簇成员的相似性表明该来源是WC型来源。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
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