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EPOXI: Comet 103P/Hartley 2 observations from a worldwide campaign

Meech, K.J., A'Hearn, M.F., Adams, J.A., Bacci, P., Bai, J., Barrera, L., Battelino, M., Bauer, J.M., Becklin, E., Bhatt, B., and others. (2011) EPOXI: Comet 103P/Hartley 2 observations from a worldwide campaign. Astrophysical Journal Letters, 734 (1 PT2). (L1) 1-9. ISSN 2041-8205. E-ISSN 2041-8213. (doi:10.1088/2041-8205/734/1/L1) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:52284)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
Official URL:
http://dx.doi.org/10.1088/2041-8205/734/1/L1

Abstract

Earth- and space-based observations provide synergistic information for space mission encounters by providing data over longer timescales, at different wavelengths and using techniques that are impossible with an in situ flyby. We report here such observations in support of the EPOXI spacecraft flyby of comet 103P/Hartley 2. The nucleus is small and dark, and exhibited a very rapidly changing rotation period. Prior to the onset of activity, the period was 16.4hr. Starting in 2010 August the period changed from 16.6hr to near 19hr in December. With respect to dust composition, most volatiles and carbon and nitrogen isotope ratios, the comet is similar to other Jupiter-family comets. What is unusual is the dominance of CO2-driven activity near perihelion, which likely persists out to aphelion. Near perihelion the comet nucleus was surrounded by a large halo of water-ice grains that contributed significantly to the total water production. © 2011. The American Astronomical Society. All rights reserved.

Item Type: Article
DOI/Identification number: 10.1088/2041-8205/734/1/L1
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Gobetti 101, 40129 Bologna, Italy [Field not mapped to EPrints] AD - ESO, Karl-Schwarzschild-Str. 2, 85748 Garching bei München, Germany [Field not mapped to EPrints] AD - Department of Physics, Catholic University of America/GSFC, 620 Michigan Ave., N.E., Washington, DC 20064, United States [Field not mapped to EPrints] AD - Osservatorio Astronomico Naturalistico di Casasco, Strada Ca'Simoni 15050, Casasco, Italy [Field not mapped to EPrints] AD - INAF - Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, Firenze 50125, Italy [Field not mapped to EPrints] AD - Brixiis Observatory, Eyckensbeekstraat 2, 9150 Kruibeke, Belgium [Field not mapped to EPrints] AD - Department of Space Studies, Southwest Research Institute, 1050 Walnut Street 400, Boulder, CO 80302, United States [Field not mapped to EPrints] AD - Astronomical Institute, Utrecht University, Princetonplein 5, 3584 CC Utrecht, Netherlands [Field not mapped to EPrints] AD - Unione Astrofili Italiani, IASF INAF, via Fosso del Cavaliere, 100-00133 Roma, Italy [Field not mapped to EPrints] AD - NASA GSFC, 8800 Greenbelt Rd., Greenbelt, MD 20771, United States [Field not mapped to EPrints] AD - Graduate Institute Astronomy, National Central University, 300 Jhongda Rd, Jhongli 32001, Taiwan [Field not mapped to EPrints] AD - Korea Astronomy and Space Science Institute, Daejeon 305-348, South Korea [Field not mapped to EPrints] AD - Department of Physics and Astronomy, California State University, Northridge, CA 91330, United States [Field not mapped to EPrints] AD - Departmnet of Earth Sciences, National Taiwan Normal University, Sec. 4, Ting-Chou Road, 88, Taipei 11677, Taiwan [Field not mapped to EPrints] AD - McDonald Observatory, University of Texas, 1 University Station, C1402, Austin, TX 78712, United States [Field not mapped to EPrints] AD - Department of Atm. Ocean and Space Sci., 2418B Space Research Bldg., University of Michigan, 2455 Hayward St., Ann Arbor, MI 48109-2143, United States [Field not mapped to EPrints] AD - Joint Astronomy Centre, University Park, 660 N. Aohoku Place, Hilo, HI 96720, United States [Field not mapped to EPrints] AD - JHU/APL, 11100 Johns Hopkins Road, Laurel, MD 20723, United States [Field not mapped to EPrints] AD - Max-Planck-Institut für Extraterrestrische Physik, Giessenbach-strasse, 85748 Garching, Germany [Field not mapped to EPrints] AD - Department of Astronomy, University of Minneapolis, 116 Church St. SE, Minneapolis, MN 55455, United States [Field not mapped to EPrints] AD - G. Montanari Observatory, via Concordia 200, 41032 Cavezzo, Italy [Field not mapped to EPrints] AD - Department of Physics, University of Central Florida, 4000 Central Florida Blvd., Orlando, FL 32816-2385, United States [Field not mapped to EPrints] AD - Stockholm Observatory, SCFAB AlbaNova, Stockholm 10691, Sweden [Field not mapped to EPrints] AD - Subaru Telescope, National Astronomical Observatory of Japan, 650 North A'ohoku Place, Hilo, HI 96720, United States [Field not mapped to EPrints] AD - National Astronomical Observatory of Japan, Osawa 2-21-1, Mitaka, Tokyo 181-8588, Japan [Field not mapped to EPrints] AD - Kashima Space Research Center, NICT, Ibaraki 314-8501, Japan [Field not mapped to EPrints] AD - GiaGa Observatory, Pogliano Milanese, Milano, Italy [Field not mapped to EPrints] AD - Institute of Space Sciences (CSIC-IEEC), Campus UAB, Sciences Faculty, Bellaterra (Barcelona) E-08193, Spain [Field not mapped to EPrints] AD - Purple Mountain Observatory, 2 West Beijing Road, Nanjing 210008, China [Field not mapped to EPrints] AD - Department of Physics and Astronomy, University of Missouri - St. Louis, 503 Benton Hall, One Univ. Blvd., St Louis, MO 63121, United States [Field not mapped to EPrints] AD - Institut d'Astrophysique et de Géophysique, Université de Liège, Allée du 6 Aot, 17, 4000 Liège, Belgium [Field not mapped to EPrints] AD - Remanzacco Observatory, via S. Stefano, Remanzacco 33047, Italy [Field not mapped to EPrints] AD - Depto. de Física, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, ũoa, Casilla 653, Santiago, Chile [Field not mapped to EPrints] AD - UPMC Univ. 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Uncontrolled keywords: comets: individual (103P/Hartley 2)
Subjects: Q Science > QB Astronomy
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: Stephen Lowry
Date Deposited: 08 Dec 2015 22:45 UTC
Last Modified: 16 Nov 2021 10:21 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/52284 (The current URI for this page, for reference purposes)

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