Observations of Comet 9P/Tempel 1 around the Deep Impact event by the OSIRIS cameras onboard Rosetta

Keller, H. U.; Küppers, Michael; Fornasier, S.; Gutierrez, P. J.; Hviid, S.F.; Jorda, L.; Knollenberg, Jörg; Lowry, Stephen C.; Rengel, Miriam; Bertini, Ivano; Cremose, Gabriele; Ip, Wing; Koschny, Detlef; Kramm, Rainer; Kürth, Ekkehard; Lara, L.M.; Sierks, H.; Thomas, N.; Barbieri, C.; Lamy, P.; Rickman, H.; Rodrigo, Rafael; A'Hearn, Michael F.; Angrilli, F.; Barucci, M.A.; Bertaux, J. L.; da Deppo, Vania de; Davidsson, Björn J.R.; Cecco, Mariolino; Debei, S.; Fulle, M.; Gliem, F.; Groussin, Olivier; López Moreno, José Luis; Marzari, Francesco; Naletto, G.; Sabau, L.; Sanz Andres, Angel Pedro y Wenzel, K. P. (2007). Observations of Comet 9P/Tempel 1 around the Deep Impact event by the OSIRIS cameras onboard Rosetta. "Icarus", v. 187 (n. 1); pp. 87-103. ISSN 0019-1035. https://doi.org/10.1016/j.icarus.2006.09.028.

Descripción

Título: Observations of Comet 9P/Tempel 1 around the Deep Impact event by the OSIRIS cameras onboard Rosetta
Autor/es:
  • Keller, H. U.
  • Küppers, Michael
  • Fornasier, S.
  • Gutierrez, P. J.
  • Hviid, S.F.
  • Jorda, L.
  • Knollenberg, Jörg
  • Lowry, Stephen C.
  • Rengel, Miriam
  • Bertini, Ivano
  • Cremose, Gabriele
  • Ip, Wing
  • Koschny, Detlef
  • Kramm, Rainer
  • Kürth, Ekkehard
  • Lara, L.M.
  • Sierks, H.
  • Thomas, N.
  • Barbieri, C.
  • Lamy, P.
  • Rickman, H.
  • Rodrigo, Rafael
  • A'Hearn, Michael F.
  • Angrilli, F.
  • Barucci, M.A.
  • Bertaux, J. L.
  • da Deppo, Vania de
  • Davidsson, Björn J.R.
  • Cecco, Mariolino
  • Debei, S.
  • Fulle, M.
  • Gliem, F.
  • Groussin, Olivier
  • López Moreno, José Luis
  • Marzari, Francesco
  • Naletto, G.
  • Sabau, L.
  • Sanz Andres, Angel Pedro
  • Wenzel, K. P.
Tipo de Documento: Artículo
Título de Revista/Publicación: Icarus
Fecha: 2007
Volumen: 187
Materias:
Escuela: E.T.S.I. Aeronáuticos (UPM) [antigua denominación]
Departamento: Vehículos Aeroespaciales [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The OSIRIS cameras on the Rosetta spacecraft observed Comet 9P/Tempel 1 from 5 days before to 10 days after it was hit by the Deep Impact projectile. The Narrow Angle Camera (NAC) monitored the cometary dust in 5 different filters. The Wide Angle Camera (WAC) observed through filters sensitive to emissions from OH, CN, Na, and OI together with the associated continuum. Before and after the impact the comet showed regular variations in intensity. The period of the brightness changes is consistent with the rotation period of Tempel 1. The overall brightness of Tempel 1 decreased by about 10% during the OSIRIS observations. The analysis of the impact ejecta shows that no new permanent coma structures were created by the impact. Most of the material moved with View the MathML source∼200ms−1. Much of it left the comet in the form of icy grains which sublimated and fragmented within the first hour after the impact. The light curve of the comet after the impact and the amount of material leaving the comet (View the MathML source4.5–9×106kg of water ice and a presumably larger amount of dust) suggest that the impact ejecta were quickly accelerated by collisions with gas molecules. Therefore, the motion of the bulk of the ejecta cannot be described by ballistic trajectories, and the validity of determinations of the density and tensile strength of the nucleus of Tempel 1 with models using ballistic ejection of particles is uncertain.

Más información

ID de Registro: 39707
Identificador DC: http://oa.upm.es/39707/
Identificador OAI: oai:oa.upm.es:39707
Identificador DOI: 10.1016/j.icarus.2006.09.028
URL Oficial: http://www.sciencedirect.com/science/article/pii/S0019103507004058
Depositado por: Biblioteca ETSI Aeronauticos
Depositado el: 18 Mar 2016 11:35
Ultima Modificación: 18 Mar 2016 11:35
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