The absorption of cosmic rays by the sun produces a shadow at the earth. The angular offset and broadening of the shadow are determined by the magnitude and structure of the interplanetary magnetic field (IPMF) in the inner solar system. The authors report the first measurement of the solar cosmic ray shadow by detection of deep underground muon flux in observations made during the entire ten-year interval 1989 to 1998. The sun shadow varies significantly during this time, with a 3.3{sigma} shadow observed during the years 1995 to 1998
A shadow of the moon, with a statistical significance of 5{sigma}, has been observed in the undergro...
Using data collected by the MACRO experiment during the years 1989–1996, we show evidence for the sh...
The shadowing of cosmic ray primaries by the moon and sun was observed by the MINOS far detector at ...
Using data collected by the MACRO experiment from 1989 to the end of its operations in 2000, we have...
The cosmic-ray Sun shadow, which is caused by high-energy charged cosmic rays being blocked and defl...
A shadow of the moon, with a statistical significance of $5\sigma$, has been observed in the undergr...
Using data collected by the MACRO experiment during the years 1989–1996, we show evidence for the sh...
A shadow of the moon, with a statistical significance of 5{sigma}, has been observed in the undergro...
Using data collected by the MACRO experiment during the years 1989–1996, we show evidence for the sh...
The shadowing of cosmic ray primaries by the moon and sun was observed by the MINOS far detector at ...
Using data collected by the MACRO experiment from 1989 to the end of its operations in 2000, we have...
The cosmic-ray Sun shadow, which is caused by high-energy charged cosmic rays being blocked and defl...
A shadow of the moon, with a statistical significance of $5\sigma$, has been observed in the undergr...
Using data collected by the MACRO experiment during the years 1989–1996, we show evidence for the sh...
A shadow of the moon, with a statistical significance of 5{sigma}, has been observed in the undergro...
Using data collected by the MACRO experiment during the years 1989–1996, we show evidence for the sh...
The shadowing of cosmic ray primaries by the moon and sun was observed by the MINOS far detector at ...