Sharma, Kritti ; Kelley, Michael S. P. ; Joharle, Simran ; Kumar, Harsh ; Swain, Vishwajeet ; Bhalerao, Varun ; Anupama, G. C. ; Barway, Sudhanshu (2021) Outbursts of Comet 67P/Churyumov-Gerasimenko Research Notes of the AAS, 5 (12). p. 277. ISSN 2515-5172
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Official URL: http://doi.org/10.3847/2515-5172/ac3ee4
Related URL: http://dx.doi.org/10.3847/2515-5172/ac3ee4
Abstract
We monitored the comet 67P/Churyumov-Gerasimenko close to its perihelion in November 2021 with the GROWTH-India Telescope. We observed two outbursts of this comet on 2021 October 29.940 and November 17.864 UTC, −3.12 days and +15.81 days respectively from the perihelion date. The brightening in the first outburst appears as a compact source, with a radial extent up to 8farcs5. The comet brightened by 0.26 ± 0.03 mag in the outburst, with a 27% increase in the effective geometric cross-section and total outburst dust mass of ∼5.3 × 105 kg. The second outburst caused a brightening of 0.49 ± 0.08 mag with effective geometric cross-section and total outburst dust mass 2.5 times larger than the first event. These outbursts are up to an order of magnitude larger than the strongest outburst event observed in situ by the Rosetta spacecraft in 2015.
Item Type: | Article |
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Source: | Copyright of this article belongs to IOP Publishing |
ID Code: | 130579 |
Deposited On: | 01 Dec 2022 10:58 |
Last Modified: | 01 Dec 2022 10:58 |
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