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27 day variation of cosmic rays along with interplanetary parameters

机译：宇宙射线与行星际参数的27天变化

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The linkages between solar activity and the earth’s climate have been suggested and the 11-year cycle in solar activity evident in sunspot numbers is the most examined example of periodicity in previous studies, no quantitative evidence indicati indicating a ng relationship for tropospheric phenomena has been found for a short period. The Sun is characterized by solar a activity and solar wind ctivity (dynamical extension of solar corona) changing in time and having the asymmetrical distributions with the heliolongitudes in general. Owing to the rotation of the Sun there are observed the periodicity of 25 –26 days (sidereal period) among the large range of the quasi quasi-periodic changes of different parameters of solar activity and solar wind as viewed from the arbitrary point of the interplan interplanetary etary space; the same periodicity as viewed from the Earth equals 27 –28 days (sinodial period). It is accepted that the periodicities of solar and geomagnetic activities, solar wind, galactic cosmic rays and other parameters characterizing the solar –terrestrial relationships connected with the Sun’s rotation are called the 27 27-day variations, instead this periodicity can be slightly different. The observed modulation of galactic cosmic ray intensity on time and spatial scales contains information regarding their transport in the heli helios- sphere. We used the data of cosmic ray neutron monitor as well as i phere. interplanetary parameters to identify the correlation between their nterplanetary 27 27-day variations. The 27 27-day variation of cosmic ray intensity is found to linearly correlated with the interplanetary magnetic field strength (B), the north south component (Bz) of the in interplanetary magnetic field vector and the product of the solar wind speed (V) terplanetary times B (V ×B). The cross correlation function of the 27 27-day cosmic ray variation versus the solar wind speed shows a negative correlation. However, the 27 27-day variation of cos cosmic rays is correlated with the variation in both the x mic x- and y y- components of inte inter- rplanetary magnetic field. The most significant 27 planetary 27-day variations of CR were found not to correlate with those of other solar indices.
机译：已经提出了太阳活动与地球气候之间的联系，在太阳黑子数中明显可见的太阳活动的11年周期是以往研究中周期性研究最多的周期性例子，没有发现定量证据表明对流层现象具有ng关系。在短时间内。太阳的特征是太阳的活动性和太阳风的活动性（太阳日冕的动态扩展）会随时间变化，并且通常具有不对称的分布和日经度。由于太阳的自转，从平面图的任意点观察，在太阳活动和太阳风的不同参数的准准周期变化的大范围内，观测到的周期为25 – 26天（静止期）行星际空间从地球上看，相同的周期等于27-28天（正弦周期）。公认的太阳和地磁活动，太阳风，银河系宇宙射线以及其他参数的特征是与太阳旋转相关的太阳-地面关系，称为27 27天变化，但该周期可能略有不同。观测到的银河宇宙射线强度在时间和空间尺度上的调制包含有关它们在太阳日光层中传输的信息。我们使用了宇宙射线中子监测仪的数据。行星际参数，以识别其行星际27 27天变化之间的相关性。发现宇宙射线强度的27 27天变化与行星际磁场强度（B），行星际磁场矢量的南北分量（Bz）和太阳风速（V）的乘积线性相关行星时间B（V×B）。 27 27天宇宙射线变化与太阳风速的互相关函数显示出负相关。然而，宇宙射线的27 27天变化与行星际磁场的x mic x和y y分量的变化相关。发现最显着的27颗行星27天CR变化与其他太阳指数没有相关性。

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