Riesen, Timm-Emanuel; Keane, Jacqueline V.; Coulson, Iain M.; Kleyna, Jan T.; Sekanina, Zdenek; Kracht, Rainer; Meech, Karen J.; Charnley, Steven B. (2016). Catastrophic Disruption of Comet ISON. Astrophysical journal, 831(2), p. 207. Institute of Physics Publishing IOP 10.3847/0004-637X/831/2/207
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We report submillimeter 450 and 850 μm dust continuum observations for comet C/2012 S1 (ISON) obtained at heliocentric distances 0.31–0.08 au prior to perihelion on 2013 November 28 (rh = 0.0125 au). These observations reveal a rapidly varying dust environment in which the dust emission was initially point-like. As ISON approached perihelion, the continuum emission became an elongated dust column spread out over as much as 60″ (>105 km) in the anti-solar direction. Deconvolution of the November 28.04 850 μm image reveals numerous distinct clumps consistent with the catastrophic disruption of comet ISON, producing ∼5.2 × 1010 kg of submillimeter-sized dust. Orbital computations suggest that the SCUBA-2 emission peak coincides with the cometʼs residual nucleus.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
10 Strategic Research Centers > Center for Space and Habitability (CSH) 08 Faculty of Science > Physics Institute > NCCR PlanetS |
UniBE Contributor: |
Riesen, Timm-Emanuel |
Subjects: |
500 Science > 520 Astronomy 500 Science > 530 Physics |
ISSN: |
0004-637X |
Publisher: |
Institute of Physics Publishing IOP |
Language: |
English |
Submitter: |
Danielle Zemp |
Date Deposited: |
29 Jun 2017 15:55 |
Last Modified: |
05 Dec 2022 15:03 |
Publisher DOI: |
10.3847/0004-637X/831/2/207 |
BORIS DOI: |
10.7892/boris.97151 |
URI: |
https://boris.unibe.ch/id/eprint/97151 |
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