Narrowband Electrophotometry of Comet Hale-Bopp (C/1995 O1) Near Perihelion |
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Authors: | Churyumov K. I. Kleshchonok V. V. Kravtsov F. I. |
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Affiliation: | (1) Astronomical Observatory of Kyiv National University, Ukraine |
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Abstract: | We present the results of narrowband photoelectric observations of comet Hale-Bopp near perihelion, which were made with the AZT-14telescope at the station Lisniki of Kyiv University Astronomical Observatory. The standard set of IHW cometary filters was used. The total number of cometary observations was more than 500 during the interval March 13–April 29, 1997. The comet's nuclear gas production rates Q of C2 and C3 were calculated using the stellar calibration for these filters. The calculations used the Haser model for a neutral cometary atmosphere. The value Afρ, which is characteristic of the dust production rate, was determined too. Mean values of the production rates near perihelion are log Q(C2) = 28.4; log Q(C3) = 27.2; (Afρ)BC = 6.0. This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | Comet narrowband electrophotometry |
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