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Updated: May 25, 2026
11:34
Scattering And Absorption of Light in Planetary Regoliths
Published on: July 1, 2019
低太陽コロナ内の太陽を食う彗星C/2011 N3 (SOHO) の破壊
C J Schrijver1, J C Brown, K Battams
1Lockheed Martin Advanced Technology Center, 3251 Hanover Street, Palo Alto, CA 94304, USA. schrijver@lmsal.com
Science (New York, N.Y.)
|January 24, 2012
まとめ
太陽を襲う彗星C/2011 N3 (SOHO) は,太陽のコロナで崩壊し,太陽の大気状態と彗星の組成を明らかにした. その消滅は,太陽と彗星の相互作用と核の断片化についての洞察をもたらした.
科学分野:
- ソーラー物理学 ソーラー物理学
- 彗星科学 彗星科学
- プラズマ物理学 プラズマ物理学
背景:
- 太陽を食う彗星は,太陽の大気と磁場のユニークな探査機を提供しています.
- 彗星の組成と太陽の近くでの振る舞いを理解することは,太陽系の進化の研究にとって極めて重要です.
研究 の 目的:
- 彗星C/2011 N3 (SOHO) が太陽のコロナ内で消滅した過程を分析する.
- 彗星物質と太陽の大気間の相互作用を調査する.
- 彗星の組成と太陽を通過中の質量損失を決定するために.
主な方法:
- 彗星C/2011 N3 (SOHO) の観測は,太陽力学天文台 (SDO) を用いて,極紫外線 (EUV) の波長帯の5つの波長帯で行われた.
- 彗星によるEUV吸収と尾の明るさの分析.
- コロナ物質の相互作用による尾の減速に基づく質量損失の推定.
主要な成果:
- 彗星C/2011 N3 (SOHO) は,太陽表面の0.146太陽半径以内まで通過した.
- 彗星から放出された物質は変数EUV-明るい尾を形成した.
- 推定6×10^8から6×10^10グラムの質量が失われ,核の断片化と加速された亜鉛化が示唆された.
結論:
- 彗星の核はおそらく断片に裂け,亜高層化の強化につながった.
- 観測により,強い太陽放射線の場内の大量減量と断片化が顕著な証拠が示されています.
- この研究は,太陽と彗星の相互作用と太陽に近い彗星の進化の理解を深める.
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