Morphological analysis of the tail structures of comet P/Halley 1910 II

Voelzke, Marcos Rincon; Izaguirre, L. S.

doi:10.1016/j.pss.2012.02.005

Cited by 15 publications

(13 citation statements)

References 21 publications

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“…In each of the 36 images from 1910, a knot structure was identified. The average value of the corrected cometocentric velocity of the knots (Vkc) measured in these 36 images was 128 ± 12 km s −1 , ranging from 26 to 277 km s −1 (Voelzke and Izaguirre ). In the 1986 data, only 23 knots were observed (Voelzke and Matsuura ).…”

Section: Image Analysismentioning

confidence: 99%

“…Both onsets of DEs identified in the 1910 approach were after the perihelion passage at heliocentric distances R equal to 0.59 and 1.13 au. The average value of the corrected cometocentric velocity Vc was 57 ± 15 km s −1 , ranging from 42 to 73 km s −1 (Voelzke and Izaguirre ). In the 1986 approach, 47 DEs documented in 47 different images allowed the derivation of 19 onsets of DEs.…”

Section: Image Analysismentioning

confidence: 99%

“…The wavelength λ of the most suitable wavy structures from 1910 was measured in 70 images. The mean value of the corrected wavelength λc is equal to 1.7 ± 0.1 × 10 6 km (ranging [0.2–4.3] × 10 6 km), resulting in a mean corrected wave number kc of 3.7 ± 0.2 × 10 −6 km −1 (Voelzke and Izaguirre ).…”

Section: Image Analysismentioning

confidence: 99%

“…In 1986, the mean amplitude A of the wave, calculated from 14 images, is equal to 2.8 ± 0.5 × 10 5 km, ranging (0.8–7.7) × 10 5 km (Voelzke and Matsuura ). There is a tendency for A and λc of the wave structures and solitons to grow with an increasing cometocentric distance (Voelzke and Matsuura ; Voelzke and Izaguirre ). Consequently, A increases by 100% between the approaches from 1910 and 1986.…”

Section: Image Analysismentioning

confidence: 99%

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Analysis of the morphological structures of comet 1P/Halley in the perihelion passages in 1910 and 1986

Voelzke

2019

Meteorit & Planetary Scien

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This work is based on a systematic analysis of images of comet 1P/Halley collected during its penultimate and ultimate approaches, i.e., in 1910 and 1986. This research has identified, characterized, classified, and compared tail structures of comet 1P/Halley, namely disconnection events (DEs), wavy structures, and solitons. The images of the comet during its 1910 passage, as illustrated in the Atlas of Comet Halley 1910 II (Donn et al. 1986), were compared with those of its approach in 1986 as illustrated in The International Halley Watch Atlas of Large‐Scale Phenomena (Brandt et al. 1992). Two onsets of DEs were discovered after the perihelion passage in 1910 with an average value of the corrected cometocentric velocity (Vc) of 57 ± 15 km s−1. Ten onsets of DEs were discovered after the perihelion passage in 1986 with an average Vc equal to 130 ± 37 km s−1. The mean value of the corrected wavelength λc of wavy structures in 1910 is equal to 1.7 ± 0.1 × 106 km, as compared to 2.2 ± 0.2 × 106 km in 1986. The mean value of the amplitude A of the wave in 1910 is equal to 1.4 ± 0.1 × 105 km and 2.8 ± 0.5 × 105 km in 1986. The goals of this research were to report the results obtained from the analysis of the P/Halley's images from 1910 and 1986, to provide empirical data for comparison, and to form the input for future physical/theoretical work.

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Section: Image Analysismentioning

confidence: 99%

Section: Image Analysismentioning

confidence: 99%

Section: Image Analysismentioning

confidence: 99%

Section: Image Analysismentioning

confidence: 99%

See 2 more Smart Citations

Analysis of the morphological structures of comet 1P/Halley in the perihelion passages in 1910 and 1986

Voelzke

2019

Meteorit & Planetary Scien

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“…And these heavy ions can be both positively and negatively charged as discussed above. In addition, in a recent study, Voelzke and Izaguirre, analyzing 886 images of comet Halley, identified 41 solitary structures [26].…”

Section: Introductionmentioning

confidence: 99%

Korteweg–deVries–Burgers (KdVB) equation in a five component cometary plasma with kappa described electrons and ions

et al. 2016

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We investigate the existence of ion-acoustic shock waves in a five component cometary plasma consisting of positively and negatively charged oxygen ions, kappa described hydrogen ions, hot solar electrons, and slightly colder cometary electrons. The KdVB equation has been derived for the system, and its solution plotted for different kappa values, oxygen ion densities, as well as the temperature ratios for the ions. It is found that the amplitude of the shock wave decreases with increasing kappa values. The strength of the shock profile decreases with increasing temperatures of the positively charged oxygen ions and densities of negatively charged oxygen ions.

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Effect of dust size distribution on dust acoustic solitary waves in a six component cometary plasma

Shilpa

Michael²,

Venugopal³

2022

J Astrophys Astron

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Morphological analysis of the tail structures of comet P/Halley 1910 II

Cited by 15 publications

References 21 publications

Analysis of the morphological structures of comet 1P/Halley in the perihelion passages in 1910 and 1986

Analysis of the morphological structures of comet 1P/Halley in the perihelion passages in 1910 and 1986

Korteweg–deVries–Burgers (KdVB) equation in a five component cometary plasma with kappa described electrons and ions

Effect of dust size distribution on dust acoustic solitary waves in a six component cometary plasma

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