Particulate mass loss from comet Hale-Bopp

被引：94

作者：

Jewitt, D

Matthews, H

机构：

[1] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA

[2] Natl Res Council Canada, Herzberg Inst Astrophys, Victoria, BC V8X 4M6, Canada

[3] Joint Astron Ctr, Hilo, HI 96720 USA

来源：

ASTRONOMICAL JOURNAL | 1999年 / 117卷 / 02期

关键词：

comets : general; comets : individual (Hale-Bopp 1995 O1); radio continuum;

D O I：

10.1086/300743

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Large particles may be present in comets in numbers sufficient to dominate the total mass of the coma. These large particles are not readily sensed by conventional (optical - infrared) techniques but are prominent at submillimeter wavelengths. Images taken using a new camera sensitive to submillimeter wavelengths reveal that comet Hale-Bopp was a prodigious source of particulate matter, releasing dust at 2000 metric tons per second when near perihelion and contributing 3 x 10(13) kg to the interplanetary dust complex. The dust production rate exceeded that of gas (mostly water) by a factor greater than 5.

引用

页码：1056 / 1062

页数：7

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