Deep Impact: Observations from a Worldwide Earth-Based Campaign

Meech, K. J.; Ageorges, N.; A'Hearn, M. F.; Arpigny, C.; Ates, A.; Aycock, J.; Bagnulo, S.; Bailey, J.; Barber, R.; Barrera, L.; Barrena, R.; Bauer, J. M.; Belton, M. J. S.; Bensch, F.; Bhattacharya, B.; Biver, N.; Blake, G.; Bockelée-Morvan, D.; Boehnhardt, H.; Bonev, B. P.; Bonev, T.; Buie, M. W.; Burton, M. G.; Butner, H. M.; Cabanac, R.; Campbell, R.; Campins, H.; Capria, M. T.; Carroll, T.; Chaffee, F.; Charnley, S. B.; Cleis, R.; Coates, A.; Cochran, A.; Colom, P.; Conrad, A.; Coulson, I. M.; Crovisier, J.; deBuizer, J.; Dekany, R.; de Léon, J.; Dello Russo, N.; Delsanti, A.; DiSanti, M.; Drummond, J.; Dundon, L.; Etzel, P. B.; Farnham, T. L.; Feldman, P.; Fernández, Y. R.; Filipovic, M. D.; Fisher, S.; Fitzsimmons, A.; Fong, D.; Fugate, R.; Fujiwara, H.; Fujiyoshi, T.; Furusho, R.; Fuse, T.; Gibb, E.; Groussin, O.; Gulkis, S.; Gurwell, M.; Hadamcik, E.; Hainaut, O.; Harker, D.; Harrington, D.; Harwit, M.; Hasegawa, S.; Hergenrother, C. W.; Hirst, P.; Hodapp, K.; Honda, M.; Howell, E. S.; Hutsemékers, D.; Iono, D.; Ip, W.-H.; Jackson, W.; Jehin, E.; Jiang, Z. J.; Jones, G. H.; Jones, P. A.; Kadono, T.; Kamath, U. W.; Käufl, H. U.; Kasuga, T.; Kawakita, H.; Kelley, M. S.; Kerber, F.; Kidger, M.; Kinoshita, D.; Knight, M.; Lara, L.; Larson, S. M.; Lederer, S.; Lee, C.-F.; Levasseur-Regourd, A. C.; Li, J. Y.; Li, Q.-S.; Licandro, J. et al.
Bibliographical reference

Science, Volume 310, Issue 5746, pp. 265-269 (2005).

Advertised on:
10
2005
Journal
Number of authors
209
IAC number of authors
5
Citations
161
Refereed citations
145
Description
On 4 July 2005, many observatories around the world and in space observed the collision of Deep Impact with comet 9P/Tempel 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.
Type