THE 1908 TUNGUSKA EXPLOSION - ATMOSPHERIC DISRUPTION OF A STONY ASTEROID

被引：360

作者：

CHYBA, CF

THOMAS, PJ

ZAHNLE, KJ

机构：

[1] NASA,AMES RES CTR,DIV SPACE SCI,MOFFETT FIELD,CA 94035

[2] UNIV WISCONSIN,DEPT PHYS & ASTRON,EAU CLAIRE,WI 54702

来源：

NATURE | 1993年 / 361卷 / 6407期

关键词：

D O I：

10.1038/361040a0

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The explosion over Tunguska, Central Siberia, in 1908 released 10 to 20 megatons (high explosive equivalent) of energy at an altitude of about 10 km. This event represents a typical fate for stony asteroids tens of metres in radius entering the Earth's atmosphere at common hypersonic velocities. Comets and carbonaceous asteroids of the appropriate energy disrupt too high, whereas typical iron objects reach and crater the terrestrial surface.

引用

页码：40 / 44

页数：5

共 45 条

[1]

[Anonymous], 1976, US STANDARD ATMOSPHE

[2] ABLATION AND BREAKUP OF LARGE METEOROIDS DURING ATMOSPHERIC ENTRY [J].