Anisotropy of Galactic Cosmic Rays and the Interplanetary Magnetic Field

Sarabhai, V.; Pai, G. L.; Wada, M.

doi:10.1038/206703a0

Cited by 12 publications

(3 citation statements)

References 7 publications

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“…a result of reduction in intensity from the garden-hose direction. Evidence for this has also been given by statistical study of maxima and minima of intensity by Sarabhai et al [1965] and Mercer and Wilson [1965] who showed that the time of minima corresponds to the garden-hose direction. If these reductions in intensity are associated with specific solar activities, we would naturally expect them to be highly variable and to last only for a few days at a time.…”

Section: ]•Iscussionmentioning

confidence: 79%

Pronounced diurnal variation in cosmic-ray intensity

Mathews¹,

Venkatesan²,

Wilson³

1969

J. Geophys. Res.

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Enhanced diurnal variations during February 1–6, 1967; April 5–14, 1967; and February 22–28, 1968, have been examined by use of data from several super neutron monitors. It is found that during these days, cosmic‐ray intensity in a direction 40°–70° west of the sun‐earth line was lower with respect to other directions, in particular the polar and antigarden‐hose directions. This anisotropy, which resulted from a reduced intensity in the garden‐hose direction in the ecliptic plane, suggests that the entire diurnal variation observed in cosmic‐ray intensity cannot be attributed to a simple mechanism involving the corotation of cosmic‐ray gas, with the interplanetary field. Corotation of cosmic‐ray gas implies an enhancement of intensity from a direction roughly 90° east of the sun‐earth line (1800 hr direction). Highly variable north‐south asymmetries were also present during these periods. These anisotropies occurred without accompanying geomagnetic disturbances or Forbush decreases indicating that they were not due to solar activity on the visible side of the sun.

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Section: ]•Iscussionmentioning

confidence: 79%

Pronounced diurnal variation in cosmic-ray intensity

Mathews¹,

Venkatesan²,

Wilson³

1969

J. Geophys. Res.

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“…Second, because the type and intensity of deep-sky radiation that reaches the Earth are not uniformly distributed [29], any other effect that may be emitted from sky sections spanning the ecliptic (i.e., zodiac constellations) should also be diverse. Therefore, a measurable astrological influence of planets transiting through these sky sections may mix synergistically and may differ from one section to another.…”

Section: Discussionmentioning

confidence: 99%

Does planets’ position in zodiac constellations drive the occurrence of human wars? A retrospective test of non-natal astrology

Bozzo

2023

Preprint

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The lack of descriptive and predictive effectiveness of natal astrology revealed thus far does not rule out the possibility that the position of planets in specific areas of the background sky influences human behavior regardless of birth date. This study compiled a list of war events that occurred throughout the twentieth century, which were used as proxies for a state of violence in the global human community at particular moments in time. Ecliptic longitude values of Mercury, Venus, Mars, Jupiter, Saturn, and the Moon at the beginning day of each war were distributed across 12 sections of the ecliptic of 30º span each. East longitude boundary of Aries was set starting at 23° from the vernal equinox in agreement with sidereal astrology. A total of 210 war events were collected for the analysis. The observed and expected war counts when planets were transiting through each zodiacal constellation were statistically similar in all cases (P values from 0.076 to 0.658). In addition, the occurrence of wars when two planets were in conjunction in specific zodiac constellations was in agreement with their expected positions according to regular planetary movement. Independently of astrology beliefs and planetary dynamics, wars showed a weak trend, though significant, towards occurring more frequently later than earlier in a year (slope: 0.78 [95% CI: 0.12, 1.48]; r 2=0.408; P=0.025). In conclusion, even though the study design favored the astrological theses, no relationship between war triggering and the positions of planets transiting through zodiacal constellations was found.

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“…When in-situ measurements oflMF became available in mid sixties, correlation analyses began to be performed. Sarabhai et al [1965Sarabhai et al [ , 1966 correlated the free space direction of the minima (T•n) in cosmic ray solar daily variation data obtained with Deep River NM with IMF direction at Earth's orbit for the November 27, 1963, to February 17, 1964, period, using data from ]IVIP 1 [Ness and Wilcox, 1964]. They found that the peak in the frequency distribution of Tma lay along the direction of lMF spiral ( 0900 LT).…”

Section: Contributions From Pitch Angle Scatteringmentioning

confidence: 99%

Cosmic ray solar semidiurnal anisotropy: 2. Heliospheric relationships of anisotropy parameters

Ahluwalia¹,

Fikani²

1996

J. Geophys. Res.

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We have used the corrected experimental semidiurnal variation observations described at length in Paper 1, to compute the amplitude and direction of semidiurnal anisotropy in free space for the period 1965 to 1992. The time interval covers several epochs of solar activity maxima, minima, and polar field reversals. We find that the amplitude of anisotropy fluctuates between 0.05% and 0.10%, except for the period 1971 to 1977 when it acquires a value as large as 0.25% at high primary rigidities (Rm > 16 GV). The physical cause of this anomalous behavior is not identified yet. The asymptotic time stays close to 0300 LT, independent of the primary rigidity (R). This direction is perpendicular to the nominal direction of interplanetary magnetic field (IMF) at Earth's orbit. The polarity of IMF has no effect on the semidiurnal anisotropy parameters. The physical significance of our results is discussed in the context of the theoretical ideas available in the literature. The contributions from the symmetric transverse gradients to semidiurnal anisotropy appear to be minimal, but those from pitch angle scattering may be appreciable.

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Anisotropy of Galactic Cosmic Rays and the Interplanetary Magnetic Field

Cited by 12 publications

References 7 publications

Pronounced diurnal variation in cosmic-ray intensity

Pronounced diurnal variation in cosmic-ray intensity

Does planets’ position in zodiac constellations drive the occurrence of human wars? A retrospective test of non-natal astrology

Cosmic ray solar semidiurnal anisotropy: 2. Heliospheric relationships of anisotropy parameters

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