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Water Production in Comets C/2011 l4 (PanSTARRS) and C/2012 f6 (Lemmon) from observations with SOHO/SWAN

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Figure

Figure 1. Lyα comae of C/2012 F6 (Lemmon) and C/2011 L4 (PanSTARRS). (a) On the left are 30 ◦ × 30 ◦ renderings of the Lyα SWAN image of the comae of both comets extracted from the full-sky images on February 20 and March 13, respectively
Table 1 gives the observational circumstances, average g factors,
Figure 3 shows the water production rate for comet C/2011 L4 (PanSTARRS), determined by modeling each individual image plotted versus time in days from perihelion on 2013 March 10.17
Figure 5. Water production rates of Comet C/2012 F6 (Lemmon) plotted as a function of time in days from perihelion on 2013 March 24.51

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