Analysis of R-band observations of an outburst of Comet 29P/Schwassmann-Wachmann 1 to place constraints on the nucleus’ rotation state

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• 作者：Charles A. Schambeau ; ^a ; ^{cas0010@knights.ucf.edu} ; Yanga R. Ferná ; ndez¹ ; ^a ; Nalin H. Samarasinha^b ; Beatrice E.A. Mueller¹ ; ^b ; Laura M. Woodney^c
• 关键词：Comets ; general ; Comets ; individual (29P/Schwassmann-Wachmann 1) ; Optical observations
• 刊名：Icarus
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：284
• 期：Complete
• 页码：359-371
• 全文大小：7753 K
• 卷排序：284

文摘

Five consecutive nights of observations of SW1 4 days after a major outburst were analyzed. An expanding shell of material was measured to have a projected velocity of 0.11 ±0.02 km/s due to the outburst. Modeling of the outburst coma suggest a slow (on the order of days) rotation period and/or a spin-pole directed towards Earth during observations.