Deep Impact:: Observations from a worldwide Earth-based campaign

被引：144

作者：

Meech, KJ

Ageorges, N

A'Hearn, MF

Arpigny, C

Ates, A

Aycock, J

Bagnulo, S

Bailey, J

Barber, R

Barrera, L

Barrena, R

Bauer, JM

Belton, MJS

Bensch, F

Bhattacharya, B

Biver, N

Blake, G

Bocklée-Morvan, D

Boehnhardt, H

Bonev, BP

Bonev, T

Buie, MW

Burton, MG

Butner, HM

Cabanac, R

Campbell, R

Campins, H

Capria, MT

Carroll, T

Chaffee, F

Charnley, SB

Cleis, R

Coates, A

Cochran, A

Colom, P

Conrad, A

Coulson, IM

Crovisier, J

deBuizer, J

Dekany, R

de Léon, J

Dello Russo, N

Delsanti, A

DiSanti, M

Drummond, J

Dundon, L

Etzel, PB

Farnham, TL

Feldman, P

Fernández, YR

机构：

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

[2] European So Observ, Santiago 19, Chile

[3] Univ Maryland, College Pk, MD 20742 USA

[4] Univ Liege, B-4000 Liege, Belgium

[5] Pomona Coll, Claremont, CA 91711 USA

[6] Keck Observ, Kamuela, HI 96743 USA

[7] Macquarie Univ, Australian Ctr Astrobiol, Sydney, NSW 2109, Australia

[8] UCL, London WC1E 6BT, England

[9] Univ Metropolitana Ciencias Educ, Santiago, Chile

[10] Inst Astrofis Canarias, E-38200 San Cristobal la Laguna, Tenerife, Spain

[11] NASA, Jet Prop Lab, Pasadena, CA 91109 USA

[12] Belton Space Initiat, Tucson, AZ 85716 USA

[13] Univ Bonn, Inst Radioastron, D-53121 Bonn, Germany

[14] CALTECH, Pasadena, CA 91125 USA

[15] Observ Paris, F-92195 Meudon, France

[16] Max Planck Sonnensyst Forsch, D-37191 Katlenburg Lindau, Germany

[17] Univ Toledo, Toledo, OH 43606 USA

[18] Inst Astron, Sofia 1784, Bulgaria

[19] Lowell Observ, Flagstaff, AZ 86001 USA

[20] Univ New S Wales, Sydney, NSW 2052, Australia

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

[22] Canada France Hawaii Telescope Corp, Kamuela, HI 96743 USA

[23] Univ Cent Florida, Orlando, FL 32816 USA

[24] Inst Astrofis Spaziale & Fis Cosm, I-00133 Rome, Italy

[25] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA

[26] USAF, Res Lab, Kirtland AFB, NM 87117 USA

[27] UCL, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England

[28] Univ Texas, Austin, TX 78712 USA

[29] Gemini Observ, Serena, Chile

[30] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA

[31] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20770 USA

[32] San Diego State Univ, San Diego, CA 92182 USA

[33] Johns Hopkins Univ, Baltimore, MD 21218 USA

[34] Univ Western Sydney, Sydney, NSW 1797, Australia

[35] Gemini Observ N, Hilo, HI 96720 USA

[36] Queens Univ Belfast, Belfast BT7 1NN, Antrim, North Ireland

[37] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[38] Univ Tokyo, Tokyo 1138654, Japan

[39] Subaru Telescope, Hilo, HI 96720 USA

[40] Waseda Univ, Tokyo 1698050, Japan

[41] Univ Notre Dame, Notre Dame, IN 46556 USA

[42] CNRS, Serv Aeron, F-91371 Verrieres Le Buisson, France

[43] Univ Calif San Diego, La Jolla, CA 92093 USA

[44] Cornell Univ, Ithaca, NY 14853 USA

[45] Inst Space & Astronaut Sci, Kanagawa 2298510, Japan

[46] Univ Arizona, Tucson, AZ 85721 USA

[47] Arecibo Observ, Arecibo, PR 00612 USA

[48] Natl Cent Univ, Taoyuan 32001, Taiwan

[49] Univ Calif Davis, Davis, CA 95616 USA

[50] Natl Astron Observ, Beijing 100012, Peoples R China

来源：

SCIENCE | 2005年 / 310卷 / 5746期

关键词：

D O I：

10.1126/science.1118978

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：

On 4 July 2005, many observatories around the world and in space observed the collision of Deep Impact with comet 9P/Tempet 1 or its aftermath. This was an unprecedented coordinated observational campaign. These data show that (i) there was new material after impact that was compositionally different from that seen before impact; (ii) the ratio of dust mass to gas mass in the ejecta was much larger than before impact; (iii) the new activity did not last more than a few days, and by 9 July the comet's behavior was indistinguishable from its pre-impact behavior; and (iv) there were interesting transient phenomena that may be correlated with cratering physics.

引用

页码：265 / 269

页数：5

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