Abstract The time and velocity of ejection of dust particles of anomalous tails from cometary nuclei are determined. It is revealed that some comets cause the formation of an anomalous tail is the collision of their comet nucleus with other bodies of the Solar System. An investigation of the formation conditions of the anomalous tail shows that the dust ejection velocity from the comet nucleus C/1851 U1, C/1885 X2, C/1921 E1, C/1925 V1, C/1930 D1, C/1975 V2, 2P/1924, 6P/1950 and 1976, 10P/1930, 7P/1933 and 35P/1939 O1 can be explained by the sublimation of the ice of the nucleus and the removal of dust by molecules. It was found that the comets C/1823 Y1, C/1882 R1, C/1883 D1, C/1888 R1, C/1892 E1, D/1894 F1, C/1932 M1, C/1954 O1, C/1968 H1, C/1969 T1, C/1973 E1, C/1995 O1, C/1999 S4, C/2004 Q2, 7P/1869 G1, 10P/1930, 19P/1918, 26P/1927 F1, 67P/1982, 73P/1930 J1, 96P/1986 J1 and 109P/1862 O1, formation of the anomalous tail and splitting of the comet nucleus was observed in one appearance. Nuclear splitting 70% of these comets occurred as a result of a collision of the comet’s nucleus with a meteoroid or fragments of their nuclei.

中文翻译：

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彗星异常尾部形成的条件

摘要 确定了彗核异常尾部尘埃粒子喷射的时间和速度。据透露，一些彗星导致异常尾巴的形成是它们的彗核与太阳系其他天体的碰撞。对异常尾部形成条件的调查表明，彗核C/1851 U1、C/1885 X2、C/1921 E1、C/1925 V1、C/1930 D1、C/1975 V2、 2P/1924, 6P/1950 and 1976, 10P/1930, 7P/1933 and 35P/1939 O1可以用原子核的冰升华和分子去除灰尘来解释。发现彗星C/1823 Y1、C/1882 R1、C/1883 D1、C/1888 R1、C/1892 E1、D/1894 F1、C/1932 M1、C/1954 O1、C/1968 H1 , C/1969 T1, C/1973 E1, C/1995 O1, C/1999 S4, C/2004 Q2, 7P/1869 G1, 10P/1930, 19P/1918, 26P/1927 F1, 67P/1982, 73P/1930 J1, 96P/1986 J1 和 109P/1862 O1，在一次出现中观察到异常尾部的形成和彗核分裂。这些彗星中 70% 的核分裂是彗核与流星体或其核碎片碰撞的结果。