Deep Impact, Stardust-NExT and the behavior of Comet 9P/Tempel 1 from 1997
文献类型：期刊论文
| 作者 | Meech, KJ; Pittichova, J; Yang, B; Zenn, A; Belton, MJS; A'Hearn, MF; Bagnulo, S; Bai JM(白金明); Barrera, L; Bauer, JM |
| 刊名 | ICARUS
 |
| 出版日期 | 2011-05 |
| 卷号 | 213期号:1页码:323-344 |
| 关键词 | Comet Tempel 1 Comets, Nucleus Comets, Dust Photometry Ices |
| ISSN号 | 0019-1035 |
| 产权排序 | 第六完成单位 |
| 通讯作者 | Meech, KJ (reprint author), Univ Hawaii, Inst Astron, 2680 Woodlawn Dr, Honolulu, HI 96822 USA. |
| 英文摘要 | We present observational data for Comet 9P/Tempel 1 taken from 1997 through 2010 in an international collaboration in support of the Deep Impact and Stardust-NExT missions. The data were obtained to characterize the nucleus prior to the Deep Impact 2005 encounter, and to enable us to understand the rotation state in order to make a time of arrival adjustment in February 2010 that would allow us to image at least 25% of the nucleus seen by the Deep Impact spacecraft to better than 80 m/pixel, and to image the crater made during the encounter, if possible. In total, similar to 500 whole or partial nights were allocated to this project at 14 observatories worldwide, utilizing 25 telescopes. Seventy percent of these nights yielded useful data. The data were used to determine the linear phase coefficient for the comet in the R-band to be 0.045 +/- 0.001 mag deg(-1) from 1 degrees to 16 degrees. Cometary activity was observed to begin inbound near r similar to 4.0 AU and the activity ended near r similar to 4.6 AU as seen from the heliocentric secular light curves, water-sublimation models and from dust dynamical modeling. The light curve exhibits a significant pre- and post-perihelion brightness and activity asymmetry. There was a secular decrease in activity between the 2000 and 2005 perihelion passages of similar to 20%. The post-perihelion light curve cannot be easily explained by a simple decrease in solar insolation or observing geometry. CN emission was detected in the comet at 2.43 AU pre-perihelion, and by r = 2.24 AU emission from C-2 and C-3 were evident. In December 2004 the production rate of CN increased from 1.8 x 10(23) mol s(-1) to Q(CN) = 2.75 x 10(23) mol s(-1) in early January 2005 and 9.3 x 10(24) mol s(-1) on June 6, 2005 at r = 1.53 AU. (C) 2011 Elsevier Inc. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | SPACE-TELESCOPE OBSERVATIONS ; EARTH-BASED CAMPAIGN ; DUST PRODUCTION ; COMET-9P/TEMPEL-1 ; TARGET ; NUCLEUS ; PHOTOMETRY ; GAS ; MORPHOLOGY ; OUTBURSTS |
| 收录类别 | SCI |
| 原文出处 | http://www.sciencedirect.com/science/article/pii/S0019103511000741 |
| 语种 | 英语 |
| WOS记录号 | WOS:000290190100020 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5410]  |
| 专题 | 云南天文台_丽江天文观测站（南方基地） |
| 推荐引用方式 GB/T 7714 | Meech, KJ,Pittichova, J,Yang, B,et al. Deep Impact, Stardust-NExT and the behavior of Comet 9P/Tempel 1 from 1997[J]. ICARUS,2011,213(1):323-344. |
| APA | Meech, KJ.,Pittichova, J.,Yang, B.,Zenn, A.,Belton, MJS.,...&Zhao, H.(2011).Deep Impact, Stardust-NExT and the behavior of Comet 9P/Tempel 1 from 1997.ICARUS,213(1),323-344. |
| MLA | Meech, KJ,et al."Deep Impact, Stardust-NExT and the behavior of Comet 9P/Tempel 1 from 1997".ICARUS 213.1(2011):323-344. |
入库方式： OAI收割
来源：云南天文台
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