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Earth, Moon, and Planets

, Volume 66, Issue 1, pp 75–81 | Cite as

X-ray observation of the Jovian impacts of comet Shoemaker - Levy 9

  • Kentaro Terada
  • Hitoshi Negoro
  • Kiyoshi Hayashida
  • Shunji Kitamoto
  • Hiroshi Tsunemi
  • Hiroshi Oya
  • Takayuki Ono
  • Akira Morioka
  • Yuzuru Tawara
  • Toshifumi Mukai
  • Masahiro Hoshino
  • Toshio Terasawa
Article
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Abstract

An ASCA observation of the Jovian impact of the comet Shoemaker-Levy 9 is reported. Four impacts of H, L, Q1 and R were observed and four impacts of B, C, G, and Q2 were observed within 60 minutes after their impacts. No significant flaring of X-ray emission was observed. Upper limit X-ray fluxes of 90 % confidence level, averaged 5 minutes just after the impacts, were 2.4 × 10−13 erg sec−1 cm−2, 3.5 × 10−13 erg sec−1 cm−2, 1.6 × 10−13 erg sec−1 cm−2 and 2.9 × 10−13 erg sec−1 cm−2 for the impacts of H, L, Q1 and R, respectively, in the 0.5(0.7 for H and Q1)−10 keV energy range. However, a hint of X-ray enhancement around Jupiter from July 17 to July 19 was detected with about 2 ∼ 6 × 10−14 erg sec−1 cm−2 in the 0.5–10 keV energy range.

Key words

Comet Jupiter X-Ray 

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Copyright information

© Kluwer Academic Publishers 1994

Authors and Affiliations

  • Kentaro Terada
    • 1
  • Hitoshi Negoro
    • 2
  • Kiyoshi Hayashida
    • 2
  • Shunji Kitamoto
    • 2
  • Hiroshi Tsunemi
    • 2
  • Hiroshi Oya
    • 3
  • Takayuki Ono
    • 3
  • Akira Morioka
    • 4
  • Yuzuru Tawara
    • 5
  • Toshifumi Mukai
    • 6
  • Masahiro Hoshino
    • 6
  • Toshio Terasawa
    • 7
  1. 1.Department of Earth and Planetary System Science, Faculty of ScienceHiroshima UniversityHigashi HiroshimaJapan
  2. 2.Department of Earth and Space Science, Faculty of ScienceOsaka University 1-1Toyonaka, OsakaJapan
  3. 3.Department of Astronomy and Geophysics, Faculty of ScienceTohoku UniversityAoba SendaiJapan
  4. 4.Upper Atmosphere and Space Research LaboratoryTohoku UniversityAoba SendaiJapan
  5. 5.Department of Physics, Faculty of ScienceNagoya UniversityNagoyaJapan
  6. 6.Institute of Space and Astronautical Science 3-1-1KanagawaJapan
  7. 7.Department of Earth and Planetary Physics, Faculty of ScienceTokyo University 7-3-1TokyoJapan

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