Details

Autor(en) / Beteiligte

• A'Hearn, Michael F.
• Belton, Michael J. S.
• Delamere, W. Alan
• Feaga, Lori M.
• Hampton, Donald
• Kissel, Jochen
• Klaasen, Kenneth P.
• McFadden, Lucy A.
• Meech, Karen J.
• Melosh, H. Jay
• Schultz, Peter H.
• Sunshine, Jessica M.
• Thomas, Peter C.
• Veverka, Joseph
• Wellnitz, Dennis D.
• Yeomans, Donald K.
• Besse, Sebastien
• Bodewits, Dennis
• Bowling, Timothy J.
• Carcich, Brian T.
• Collins, Steven M.
• Farnham, Tony L.
• Groussin, Olivier
• Hermalyn, Brendan
• Kelley, Michael S.
• Li, Jian-Yang
• Lindler, Don J.
• Lisse, Carey M.
• McLaughlin, Stephanie A.
• Merlin, Frédéric
• Protopapa, Silvia
• Richardson, James E.
• Williams, Jade L.

Titel

EPOXI at Comet Hartley 2

Ist Teil von

• Science (American Association for the Advancement of Science), 2011-06, Vol.332 (6036), p.1396-1400

Ort / Verlag

Washington, DC: American Association for the Advancement of Science

Erscheinungsjahr

2011

Quelle

Science Online_科学在线

Beschreibungen/Notizen

• Understanding how comets work—what drives their activity—is crucial to the use of comets in studying the early solar system. EPOXI (Extrasolar Planet Observation and Deep Impact Extended Investigation) flew past comet 103P/Hartley 2, one with an unusually small but very active nucleus, taking both images and spectra. Unlike large, relatively inactive nuclei, this nucleus is outgassing primarily because of CO 2 , which drags chunks of ice out of the nucleus. It also shows substantial differences in the relative abundance of volatiles from various parts of the nucleus.