NAU Harvester System
The physical mechanism of future separation of comet 103R/Hartley 2 nucleus
Вісник астрономічної школи
View Archive Info| Field | Value | |
| Title |
The physical mechanism of future separation of comet 103R/Hartley 2 nucleus
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| Creator |
Ksanfomalіtі L.V.
Churyumov K.І. |
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| Date |
2012
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| Source |
Astronomical School’s Report, 2012, Volume 8, Issue 1, P. 22-27
2411-6602 |
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| Identifier |
http://astro.nau.edu.ua/papers/AstSR_2012_Vol_8_Iss_1_P_22.pdf
10.18372/2411-6602.08.1022 |
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| Language |
uk
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| Description |
The spacecraft Deep Impact (project EPOXI, NASA) became close to the nucleus of comet 103P/Hartley 2 (103P/Hartley 2) in November 2010 and sent pictures of the small celestial body having a dumbbell shape with a smooth neck. Since the rotation of the nucleus leads to the centrifugal forces, authors suggested that the neck of the dumbbell formed under their influence, and that there is slow but continuous lengthening of the neck, which should be completed by separation of nucleus fragments. The calculation shows that, in a narrow part of the nucleus the centrifugal forces stronger than gravity and that the nucleus is indeed in the stage of coming rupture and splitting it in two fragments. In the absence of external perturbations both parts of the celestial body will fragments will diverge in opposite directions on a distance of less 1 km. Thus the dumbbell shape of the nucleus of comet 103P/Hartley 2 is a precursor of the future destruction of the celestial body.
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| Publisher |
National Aviation University
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| Format |
application/pdf
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