THE LIMITING PRIMARY RIGIDITY OF COSMIC-RAY DIURNAL ANISOTROPY

被引:13
作者
AHLUWALIA, HS [1 ]
SABBAH, IS [1 ]
机构
[1] UNIV ALEXANDRIA,FAC SCI,DEPT PHYS,ALEXANDRIA,EGYPT
关键词
D O I
10.1016/0032-0633(93)90038-4
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Our calculations of the upper cut-off primary rigidity (R(c)), applicable to the solar diurnal anisotropy, have been extended to cover the declining phase of the solar activity cycle 21. The calculated values of R(c) now encompass a complete solar magnetic cycle (1965-1987). We found that the values of R(c) were very large for the 1982-1985 period, almost twice as large as those observed previously for the periods of maximum solar activity. The largest value occurred in 1983. Also, the value obtained at the solar activity minimum year of 1986 was about twice as large as that obtained in 1965. Our results are compared with those reported by others.
引用
收藏
页码:105 / 112
页数:8
相关论文
共 39 条
[11]  
AHLUWALIA HS, 1977, 15TH INT COSM RAY C, V11, P298
[12]  
AHLUWALIA HS, 1992, UNPUB GEOPHYS RES LE
[13]  
AHLUWALIA HS, 1970, ACTA PHYS HUNG S2, V29, P139
[14]   UNIQUENESS IN INVERSION OF INACCURATE GROSS EARTH DATA [J].
BACKUS, G ;
GILBERT, F .
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1970, 266 (1173) :123-&
[15]   COSMIC-RAY DIURNAL ANISOTROPY, 1936-1988 - IMPLICATIONS FOR DRIFT AND MODULATION THEORIES [J].
BIEBER, JW ;
CHEN, JS .
ASTROPHYSICAL JOURNAL, 1991, 372 (01) :301-313
[16]  
CHAHINE MT, 1977, INVERSION METHODS AT
[17]   THE 24 HOUR INTENSITY VARIATIONS OF THE PRIMARY COSMIC RAYS [J].
CONFORTO, AM ;
SIMPSON, JA .
NUOVO CIMENTO, 1957, 6 (05) :1052-1063
[18]  
ERDOS G, 1979, 16TH ICCR KYOT, V4, P45
[19]  
FUJII Z, 1990, 21 INT COSM RAY C, V6, P314
[20]  
FUJIMOTO K, 1984, CRRL9 REP