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Stardust-NExT, Deep Impact, and the accelerating spin of 9P/Tempel 1
Belton, Michael J. S.1; Meech, Karen J.2; Chesley, Steven3; Pittichova, Jana2; Carcich, Brian4; Drahus, Michal5; Harris, Alan6; Gillam, Stephen3; Veverka, Joseph4; Mastrodemos, Nicholas3; Owen, William3; A'Hearn, Michael F.7; Bagnulo, S.8; Bai, J.9; Barrera, L.10; Bastien, Fabienne7; Bauer, James M.3; Bedient, J.; Bhatt, B. C.11; Boehnhardt, Hermann12; Brosch, N.13; Buie, Marc14; Candia, Pablo15; Chen, W. -P.16; Chiang, P.16; Choi, Young-Jun17; Cochran, A.18; Crockett, Christopher J.7; Duddy, S.19; Farnham, Tony7; Fernandez, Yan R.20; Gutierrez, Pedro21; Hainaut, Olivier R.22; Hampton, Donald23; Herrmann, Kimberly A.24; Hsieh, Henry2; Kadooka, M. A.2; Kaluna, H.2; Keane, J.2; Kim, M. -J.25; Klaasen, Kenneth3; Kleyna, J.2; Krisciunas, Kevin26; Lara, Luisa M.21; Lauer, Tod R.27; Li, Jian-Yang7; Licandro, Javier28,29; Lisse, Carey M.30; Lowry, Stephen C.19; McFadden, Lucy31; Moskovitz, N.32; Mueller, Beatrice33; Polishook, D.13; Raja, N. S.2; Riesen, T.2; Sahu, D. K.11; Samarasinha, Nalin33; Sarid, G.2; Sekiguchi, Tomohiko34; Sonnett, S.2; Suntzeff, Nicholas B.26; Taylor, Brian W.24,35; Thomas, Peter4; Tozzi, Gian Paolo36; Vasundhara, R.11; Vincent, J. -B.12; Wasserman, Lawrence H.24; Webster-Schultz, Bryant37; Yang, B.2; Zenn, T.2; Zhao, H.38
Source PublicationICARUS
AbstractThe evolution of the spin rate of Comet 9P/Tempel 1 through two perihelion passages (in 2000 and 2005) is determined from 1922 Earth-based observations taken over a period of 13 year as part of a World-Wide observing campaign and from 2888 observations taken over a period of 50 days from the Deep Impact spacecraft. We determine the following sidereal spin rates (periods): 209.023 +/- 0.025 degrees/dy (41.335 +/- 0.005 h) prior to the 2000 perihelion passage, 210.448 +/- 0.016 degrees/dy (41.055 +/- 0.003 h) for the interval between the 2000 and 2005 perihelion passages, 211.856 +/- 0.030 degrees/dy (40.783 +/- 0.006 h) from Deep Impact photometry just prior to the 2005 perihelion passage, and 211.625 +/- 0.012 degrees/dy (40.827 +/- 0.002 h) in the interval 2006-2010 following the 2005 perihelion passage. The period decreased by 16.8 +/- 0.3 min during the 2000 passage and by 13.7 +/- 0.2 min during the 2005 passage suggesting a secular decrease in the net torque. The change in spin rate is asymmetric with respect to perihelion with the maximum net torque being applied on approach to perihelion. The Deep Impact data alone show that the spin rate was increasing at a rate of 0.024 +/- 0.003 degrees/dy/dy at JD2453530.60510 (i.e., 25.134 dy before impact), which provides independent confirmation of the change seen in the Earth-based observations.
KeywordComets Rotational Dynamics Comets Comet Tempel 1 Nucleus
Indexed BySCI
WOS IDWOS:000290190100021
Citation statistics
Cited Times:36[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Belton Space Explorat Initiat LLC, Tucson, AZ 85716 USA
2.Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA
3.CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
4.Cornell Univ, Ctr Radiophys & Space Res, Ithaca, NY 14853 USA
5.Univ Calif Los Angeles, Dept Earth & Space Sci, Los Angeles, CA 90095 USA
6.Space Sci Inst, Boulder, CO 80301 USA
7.Univ Maryland, Dept Astron, College Pk, MD 20742 USA
8.Armagh Observ, Armagh BT61 9DG, North Ireland
9.Chinese Acad Sci, Yunnan Astron Observ, Kunming 65011, Yunnan, Peoples R China
10.Univ Metropolitana Ciencias Educ, Dep Fis, Santiago, Chile
11.Indian Inst Astrophys, Bangalore 560034, Karnataka, India
12.Max Planck Inst Sonnensyst Forsch, D-37191 Katlenburg Lindau, Germany
13.Tel Aviv Univ, Dept Geophys & Planetary Sci, IL-69978 Tel Aviv, Israel
14.SW Res Inst, Boulder, CO 80302 USA
15.AURA, Gemini Observ, La Serena, Chile
16.Natl Cent Univ, Grad Inst Astron, Jhongli 32001, Taiwan
17.Korea Astron & Space Sci Inst, Taejon 305348, South Korea
18.Univ Texas Austin, Dept Astron, Austin, TX 78712 USA
19.Univ Kent, Sch Phys Sci, Ctr Astrophys & Planetary Sci, Canterbury CT2 7NH, Kent, England
20.Univ Cent Florida, Dept Phys, Orlando, FL 32816 USA
21.CSIC, Inst Astrofis Andalucia, E-18080 Granada, Spain
22.European So Observ, Santiago 19, Chile
23.Univ AK, Inst Geophys, Fairbanks, AK 99775 USA
24.Lowell Observ, Flagstaff, AZ 86001 USA
25.Coll Sci, Dept Astron, Seoul 120749, South Korea
26.Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA
27.Natl Opt Astron Observ, Tucson, AZ 85719 USA
28.Inst Astrofis Canarias, Tenerife 38200, Spain
29.Univ La Laguna, Dept Astrofis, E-38205 Tenerife, Spain
30.Johns Hopkins Univ, Appl Phys Lab, Dept Space, Planetary Explorat Grp, Laurel, MD 20723 USA
31.NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
32.Carnegie Inst Washington, Dept Terr Magnetism, Washington, DC 20015 USA
33.Planetary Sci Inst, Tucson, AZ 85719 USA
34.Natl Astron Observ, Tokyo 1818588, Japan
35.Boston Univ, Inst Astrophys Res, Boston, MA 02215 USA
36.Osserv Astrofis Arcetri, INAF, I-50125 Florence, Italy
37.HAS, Kaneohe, HI 96744 USA
38.Chinese Acad Sci, Nanjing 210008, Peoples R China
Recommended Citation
GB/T 7714
Belton, Michael J. S.,Meech, Karen J.,Chesley, Steven,et al. Stardust-NExT, Deep Impact, and the accelerating spin of 9P/Tempel 1[J]. ICARUS,2011,213(1):345-368.
APA Belton, Michael J. S..,Meech, Karen J..,Chesley, Steven.,Pittichova, Jana.,Carcich, Brian.,...&Zhao, H..(2011).Stardust-NExT, Deep Impact, and the accelerating spin of 9P/Tempel 1.ICARUS,213(1),345-368.
MLA Belton, Michael J. S.,et al."Stardust-NExT, Deep Impact, and the accelerating spin of 9P/Tempel 1".ICARUS 213.1(2011):345-368.
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