sábado, 1 de diciembre de 2012

Water production rate C/2011 L4 PANSTARRS

Preliminary Results ...., WATER PRODUCTION RATE IN PANSTARRS COMET The author of this analysis , calculated the water production rate of comet C/2011 L4 PANSTARRS based in 107 reduced's magnitudes from database : ICQ , Comet Obs , observadorescometas and Cometas LIADA , the preliminary results from the heliocentric distance range 2.5 < r < 5.5 show the water equation : log Q [ H2O ] = 28.39 + ( -0.0003 ) * R coefficient correlation R = -0.98 For comparison for halley's comet in visual aparition in 1986 show in R = 2.5 , log Q [ H2O ] = 28.8 mol s-1 or ~ 2000 kg/seg. , PANSTARRS COMET in 2012 from R = 2.5 , log Q [ H2O ]= 27.6 mol s-1 or ~ 100 kg/seg , the halley's comet have sublimation rate factor's 20 superior for the PANSTARR'S comet , the difference is : d ( log Q [ H2O ]) = -1.2 mol s-1. The water production for PANSTARRS comet is based in work '' The correlation between visual magnitudes and water production rates '' from authors L.Jorda , J.Crovisier and D.W Green , published in revist Asteroids , Comets and Meteors ( 2008 ) . Carbon Diatomic production rate is calculated based in power law's or photometrical parameter ( n ) activity index from next equation : log Q [ C2 ] = -4.6 * log R Morris and Hanner ( 1993 )

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