论文标题

使用Messenger SAX进行幕后太阳耀斑的课程估算

GOES class estimation for behind-the-limb solar flares using MESSENGER SAX

论文作者

Lastufka, Erica, Krucker, Säm

论文摘要

汞任务Messenger的%(汞表面,空间环境,地球化学和X射线太阳能组件(SAX)在2013年5月28日至2013年8月19日之间观察到了近700个太阳能耀斑,由\ citet {dennissolarflareelemt2015}进行了归类,X-ray specter(x-ray spectermort)(x-ray spection)(x-ray spection)(x-ray spection)(x-ray spection)(x-ray spectormer)重叠的X射线光谱仪的能量范围可提供与接地线的视角不同,因此可以用作for for of the sace and sace and sace sax and sax sace and sax and sax sax and sax sax and sax and sax sax and sax and sax sax sax and sax sax and sax sax and sax, SXR仪器,单个事件平均可以偏离经验关系,这意味着从SAX数据中对被掩盖的弹性的预测是准确的。 与耀斑的多性性质结合使用,独特的能量响应使得对于任何仪器,甚至其他软X射线光谱仪,也很难提供比两个元素更准确的。

Mercury mission MESSENGER's %(MErcury Surface, Space ENvironment, GEochemistry, and Ranging Solar Assembly for X-rays (SAX) observed almost 700 solar flares between May 28, 2007 and August 19, 2013, as cataloged by \citet{dennisSOLARFLAREELEMENT2015}. The SAX instrument, part of the X-ray Spectrometer (XRS), operated at 1 -- 10 keV, partially overlapping the energy range of the GOES X-ray spectrometers. SAX provides viewing angles different from the Earth-Sun line and can therefore be used as a GOES proxy for partially or fully occulted flares as seen from Earth. For flares with GOES classes above C2 seen on-disk for both instruments, we found an empirical relationship between the soft X-ray (SXR) fluxes measured by both SAX and GOES. Due to the different energy response of the two SXR instruments, individual events can deviate on average by about a factor of two from the empirical relationship, implying that predictions of the GOES class of occulted flares from SAX data are therefore accurate to within the same factor. The distinctive GOES energy response in combination with the multithermal nature of flares makes it difficult for any instrument, even other soft X-ray spectrometers, to provide a GOES proxy more accurate than a factor of two.

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