Analysis of the dust jet imaged by Rosetta VIRTIS-M in the coma of comet 67P/Churyumov-Gerasimenko on 2015 April 12

V. Tenishev, N. Fougere, D. Borovikov, M. R. Combi, A. Bieler, K. C. Hansen, T. I. Gombosi, A. Migliorini, F. Capaccioni, G. Rinaldi, G. Filacchione, L. Kolokolova, Uwe - Fink

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This work is a part of a more global effort aimed at understanding and interpreting in situ and remote sensing data acquired by instruments on board Rosetta. This study aims at deriving the dust mass source rate and the location of the dust jet source observed by Rosetta VIRTIS-M on 2015 April 12. The analysis is performed by means of the coupled kinetic modelling of gas and dust in the coma of comet 67P/Churyumov-Gerasimenko, which were used for calculating the coma brightness as it would be seen from the Rosetta spacecraft. The dust mass production rate and a possible location of the jet origin needed to explain the Rosetta VIRTIS-M dust brightness image were inferred by comparing the calculated brightness with VIRTIS-M data. Our analysis suggests that the dust mass production rate needed to maintain the observed jet is about 1.9 kg s-1. According to our analysis, the location of the observed jet surface footprint is outside of the nucleus area characterized by the highest gas production rate, which suggests that gas and dust source rates are not necessarily proportional to each other across the entire nucleus surface. The inferred location of the possible jet origin is consistent with that of the observed active pits. In this paper, we show that the jet intensity is variable in time, and has a lifetime of at least 10 h.

Original languageEnglish (US)
Pages (from-to)S370-S375
JournalMonthly Notices of the Royal Astronomical Society
Volume462
DOIs
StatePublished - 2016

Fingerprint

coma
comets
comet
dust
brightness
gases
nuclei
footprints
analysis
gas
gas production
footprint
remote sensing
spacecraft
rate
life (durability)
kinetics
modeling

Keywords

  • Comets: general
  • Comets: individual: 67P/Churyumov-Gerasimenko

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Analysis of the dust jet imaged by Rosetta VIRTIS-M in the coma of comet 67P/Churyumov-Gerasimenko on 2015 April 12. / Tenishev, V.; Fougere, N.; Borovikov, D.; Combi, M. R.; Bieler, A.; Hansen, K. C.; Gombosi, T. I.; Migliorini, A.; Capaccioni, F.; Rinaldi, G.; Filacchione, G.; Kolokolova, L.; Fink, Uwe -.

In: Monthly Notices of the Royal Astronomical Society, Vol. 462, 2016, p. S370-S375.

Research output: Contribution to journalArticle

Tenishev, V, Fougere, N, Borovikov, D, Combi, MR, Bieler, A, Hansen, KC, Gombosi, TI, Migliorini, A, Capaccioni, F, Rinaldi, G, Filacchione, G, Kolokolova, L & Fink, U 2016, 'Analysis of the dust jet imaged by Rosetta VIRTIS-M in the coma of comet 67P/Churyumov-Gerasimenko on 2015 April 12', Monthly Notices of the Royal Astronomical Society, vol. 462, pp. S370-S375. https://doi.org/10.1093/mnras/stw2793
Tenishev, V. ; Fougere, N. ; Borovikov, D. ; Combi, M. R. ; Bieler, A. ; Hansen, K. C. ; Gombosi, T. I. ; Migliorini, A. ; Capaccioni, F. ; Rinaldi, G. ; Filacchione, G. ; Kolokolova, L. ; Fink, Uwe -. / Analysis of the dust jet imaged by Rosetta VIRTIS-M in the coma of comet 67P/Churyumov-Gerasimenko on 2015 April 12. In: Monthly Notices of the Royal Astronomical Society. 2016 ; Vol. 462. pp. S370-S375.
@article{c9317c809b3e4c318cb25e9c52fff816,
title = "Analysis of the dust jet imaged by Rosetta VIRTIS-M in the coma of comet 67P/Churyumov-Gerasimenko on 2015 April 12",
abstract = "This work is a part of a more global effort aimed at understanding and interpreting in situ and remote sensing data acquired by instruments on board Rosetta. This study aims at deriving the dust mass source rate and the location of the dust jet source observed by Rosetta VIRTIS-M on 2015 April 12. The analysis is performed by means of the coupled kinetic modelling of gas and dust in the coma of comet 67P/Churyumov-Gerasimenko, which were used for calculating the coma brightness as it would be seen from the Rosetta spacecraft. The dust mass production rate and a possible location of the jet origin needed to explain the Rosetta VIRTIS-M dust brightness image were inferred by comparing the calculated brightness with VIRTIS-M data. Our analysis suggests that the dust mass production rate needed to maintain the observed jet is about 1.9 kg s-1. According to our analysis, the location of the observed jet surface footprint is outside of the nucleus area characterized by the highest gas production rate, which suggests that gas and dust source rates are not necessarily proportional to each other across the entire nucleus surface. The inferred location of the possible jet origin is consistent with that of the observed active pits. In this paper, we show that the jet intensity is variable in time, and has a lifetime of at least 10 h.",
keywords = "Comets: general, Comets: individual: 67P/Churyumov-Gerasimenko",
author = "V. Tenishev and N. Fougere and D. Borovikov and Combi, {M. R.} and A. Bieler and Hansen, {K. C.} and Gombosi, {T. I.} and A. Migliorini and F. Capaccioni and G. Rinaldi and G. Filacchione and L. Kolokolova and Fink, {Uwe -}",
year = "2016",
doi = "10.1093/mnras/stw2793",
language = "English (US)",
volume = "462",
pages = "S370--S375",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",

}

TY - JOUR

T1 - Analysis of the dust jet imaged by Rosetta VIRTIS-M in the coma of comet 67P/Churyumov-Gerasimenko on 2015 April 12

AU - Tenishev, V.

AU - Fougere, N.

AU - Borovikov, D.

AU - Combi, M. R.

AU - Bieler, A.

AU - Hansen, K. C.

AU - Gombosi, T. I.

AU - Migliorini, A.

AU - Capaccioni, F.

AU - Rinaldi, G.

AU - Filacchione, G.

AU - Kolokolova, L.

AU - Fink, Uwe -

PY - 2016

Y1 - 2016

N2 - This work is a part of a more global effort aimed at understanding and interpreting in situ and remote sensing data acquired by instruments on board Rosetta. This study aims at deriving the dust mass source rate and the location of the dust jet source observed by Rosetta VIRTIS-M on 2015 April 12. The analysis is performed by means of the coupled kinetic modelling of gas and dust in the coma of comet 67P/Churyumov-Gerasimenko, which were used for calculating the coma brightness as it would be seen from the Rosetta spacecraft. The dust mass production rate and a possible location of the jet origin needed to explain the Rosetta VIRTIS-M dust brightness image were inferred by comparing the calculated brightness with VIRTIS-M data. Our analysis suggests that the dust mass production rate needed to maintain the observed jet is about 1.9 kg s-1. According to our analysis, the location of the observed jet surface footprint is outside of the nucleus area characterized by the highest gas production rate, which suggests that gas and dust source rates are not necessarily proportional to each other across the entire nucleus surface. The inferred location of the possible jet origin is consistent with that of the observed active pits. In this paper, we show that the jet intensity is variable in time, and has a lifetime of at least 10 h.

AB - This work is a part of a more global effort aimed at understanding and interpreting in situ and remote sensing data acquired by instruments on board Rosetta. This study aims at deriving the dust mass source rate and the location of the dust jet source observed by Rosetta VIRTIS-M on 2015 April 12. The analysis is performed by means of the coupled kinetic modelling of gas and dust in the coma of comet 67P/Churyumov-Gerasimenko, which were used for calculating the coma brightness as it would be seen from the Rosetta spacecraft. The dust mass production rate and a possible location of the jet origin needed to explain the Rosetta VIRTIS-M dust brightness image were inferred by comparing the calculated brightness with VIRTIS-M data. Our analysis suggests that the dust mass production rate needed to maintain the observed jet is about 1.9 kg s-1. According to our analysis, the location of the observed jet surface footprint is outside of the nucleus area characterized by the highest gas production rate, which suggests that gas and dust source rates are not necessarily proportional to each other across the entire nucleus surface. The inferred location of the possible jet origin is consistent with that of the observed active pits. In this paper, we show that the jet intensity is variable in time, and has a lifetime of at least 10 h.

KW - Comets: general

KW - Comets: individual: 67P/Churyumov-Gerasimenko

UR - http://www.scopus.com/inward/record.url?scp=85015890889&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85015890889&partnerID=8YFLogxK

U2 - 10.1093/mnras/stw2793

DO - 10.1093/mnras/stw2793

M3 - Article

AN - SCOPUS:85015890889

VL - 462

SP - S370-S375

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

ER -