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EPOXI: COMET 103P/HARTLEY 2 OBSERVATIONS FROM A WORLDWIDE CAMPAIGN
文献类型：期刊论文
| 作者 | Meech, K. J.1; A'Hearn, M. F.2; Adams, J. A.3; Bacci, P.4; Bai, J.5; Barrera, L.6; Battelino, M.7; Bauer, J. M.8; Becklin, E.9; Bhatt, B.10 |
| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2011-06-10 |
| 卷号 | 734期号:1页码:L1(9pp) |
| ISSN号 | 2041-8205 |
| 关键词 | comets: individual (103P/Hartley 2) |
| 英文摘要 | Earth- and space-based observations provide synergistic information for space mission encounters by providing data over longer timescales, at different wavelengths and using techniques that are impossible with an in situ flyby. We report here such observations in support of the EPOXI spacecraft flyby of comet 103P/Hartley 2. The nucleus is small and dark, and exhibited a very rapidly changing rotation period. Prior to the onset of activity, the period was similar to 16.4 hr. Starting in 2010 August the period changed from 16.6 hr to near 19 hr in December. With respect to dust composition, most volatiles and carbon and nitrogen isotope ratios, the comet is similar to other Jupiter-family comets. What is unusual is the dominance of CO2-driven activity near perihelion, which likely persists out to aphelion. Near perihelion the comet nucleus was surrounded by a large halo of water-ice grains that contributed significantly to the total water production. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | MIDINFRARED SPECTROMETER ; SPACE-TELESCOPE ; HERSCHEL ; PERFORMANCE ; PHOTOMETRY ; MISSION ; NUCLEUS ; IMAGER ; MIRSI ; DUST |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000293135500001 |
| 公开日期 | 2012-08-07 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/4566]  |
| 专题 | 紫金山天文台_期刊（老文献） |
| 作者单位 | 1.Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA 2.Univ Maryland, Dept Astron, College Pk, MD 20742 USA 3.Cornell Univ, Dept Astron, Ithaca, NY 14853 USA 4.Ctr Astron Libbiano, Peccioli Pisa, Italy 5.Chinese Acad Sci, Yunnan Astron Observ, Kunming 65011, Yunnan, Peoples R China 6.Univ Metropolitana Ciencias Educ, Santiago, Chile 7.Swedish Space Corp, S-17104 Solna, Sweden 8.CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA 9.Univ Space Res Assoc, Stratospher Observ Infrared Astron, Moffett Field, CA 94035 USA 10.Indian Inst Astrophys, Bangalore 560034, Karnataka, India |
| 推荐引用方式 GB/T 7714 | Meech, K. J.,A'Hearn, M. F.,Adams, J. A.,et al. EPOXI: COMET 103P/HARTLEY 2 OBSERVATIONS FROM A WORLDWIDE CAMPAIGN[J]. ASTROPHYSICAL JOURNAL LETTERS,2011,734(1):L1(9pp). |
| APA | Meech, K. J..,A'Hearn, M. F..,Adams, J. A..,Bacci, P..,Bai, J..,...&Ziffer, J. E..(2011).EPOXI: COMET 103P/HARTLEY 2 OBSERVATIONS FROM A WORLDWIDE CAMPAIGN.ASTROPHYSICAL JOURNAL LETTERS,734(1),L1(9pp). |
| MLA | Meech, K. J.,et al."EPOXI: COMET 103P/HARTLEY 2 OBSERVATIONS FROM A WORLDWIDE CAMPAIGN".ASTROPHYSICAL JOURNAL LETTERS 734.1(2011):L1(9pp). |
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来源：紫金山天文台
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