论文标题
卡西尼航天器6.5彗星153p/ikeya-zhang检测到的彗星离子6.5
Cometary ions detected by the Cassini spacecraft 6.5 au downstream of Comet 153P/Ikeya-Zhang
论文作者
论文摘要
在2002年3月至4月期间，在木星和土星的轨道之间，卡西尼航天器检测到拾音器质子通量的显着增强。这种增强的最有可能的解释是通过在153p/ikeya-zhang彗星的电晕中通过电离中性氢的电离将质子添加到太阳风中。在此期间，该彗星通过相对靠近太阳线线的距离，使拾音器离子可以通过太阳风将其运送到卡西尼。这种拾音器质子通量本可以通过冠状质量弹出的行星际对应物经过彗星和航天器的经过。拾音器质子传播的6.5个天文单元（AU）的径向距离，隐含的总尾巴长度> 7.5 au使该彗星离子尾巴成为最长但测量的最长。
During March-April 2002, while between the orbits of Jupiter and Saturn, the Cassini spacecraft detected a significant enhancement in pickup proton flux. The most likely explanation for this enhancement was the addition of protons to the solar wind by the ionization of neutral hydrogen in the corona of comet 153P/Ikeya-Zhang. This comet passed relatively close to the Sun-Cassini line during that period, allowing pickup ions to be carried to Cassini by the solar wind. This pickup proton flux could have been further modulated by the passage of the interplanetary counterparts of coronal mass ejections past the comet and spacecraft. The radial distance of 6.5 Astronomical Units (au) traveled by the pickup protons, and the implied total tail length of >7.5 au make this cometary ion tail the longest yet measured.
