67P/churyumov-gerasimenko: Activity between March and June 2014 as observed from Rosetta/OSIRIS

C. Tubiana; C. Snodgrass; I. Bertini; S. Mottola; J. B. Vincent; L. Lara; S. Fornasier; J. Knollenberg; N. Thomas; M. Fulle; J. Agarwal; D. Bodewits; F. Ferri; C. Güttler; P. J. Gutierrez; F. La Forgia; S. Lowry; S. Magrin; N. Oklay; M. Pajola; R. Rodrigo; H. Sierks; M. F. A'hearn; F. Angrilli; C. Barbieri; M. A. Barucci; J. L. Bertaux; G. Cremonese; V. Da Deppo; B. Davidsson; M. De Cecco; S. Debei; O. Groussin; S. F. Hviid; W. Ip; L. Jorda; H. U. Keller; D. Koschny; R. Kramm; E. Kührt; M. Küppers; M. Lazzarin; P. L. Lamy; J. J. Lopez Moreno; F. Marzari; H. Michalik; G. Naletto; H. Rickman; L. Sabau; K. P. Wenzel

doi:10.1051/0004-6361/201424735

67P/churyumov-gerasimenko: Activity between March and June 2014 as observed from Rosetta/OSIRIS

C. Tubiana, C. Snodgrass, I. Bertini, S. Mottola, J. B. Vincent, L. Lara, S. Fornasier, J. Knollenberg, N. Thomas, M. Fulle, J. Agarwal, D. Bodewits, F. Ferri, C. Güttler, P. J. Gutierrez, F. La Forgia, S. Lowry, S. Magrin, N. Oklay, M. PajolaR. Rodrigo, H. Sierks, M. F. A'hearn, F. Angrilli, C. Barbieri, M. A. Barucci, J. L. Bertaux, G. Cremonese, V. Da Deppo, B. Davidsson, M. De Cecco, S. Debei, O. Groussin, S. F. Hviid, W. Ip, L. Jorda, H. U. Keller, D. Koschny, R. Kramm, E. Kührt, M. Küppers, M. Lazzarin, P. L. Lamy, J. J. Lopez Moreno, F. Marzari, H. Michalik, G. Naletto, H. Rickman, L. Sabau, K. P. Wenzel

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摘要

Aims. 67P/Churyumov-Gerasimenko is the target comet of the ESA's Rosetta mission. After commissioning at the end of March 2014, the Optical, Spectroscopic, and Infrared Remote Imaging System (OSIRIS) onboard Rosetta, started imaging the comet and its dust environment to investigate how they change and evolve while approaching the Sun.

Methods. We focused our work on Narrow Angle Camera (NAC) orange images and Wide Angle Camera (WAC) red and visible-610 images acquired between 2014 March 23 and June 24 when the nucleus of 67P was unresolved and moving from approximately 4.3 AU to 3.8 AU inbound. During this period the 67P - Rosetta distance decreased from 5 million to 120 thousand km.

Results. Through aperture photometry, we investigated how the comet brightness varies with heliocentric distance. 67P was likely already weakly active at the end of March 2014, with excess flux above that expected for the nucleus. The comet's brightness was mostly constant during the three months of approach observations, apart from one outburst that occurred around April 30 and a second increase in flux after June 20. Coma was resolved in the profiles from mid-April. Analysis of the coma morphology suggests that most of the activity comes from a source towards the celestial north pole of the comet, but the outburst that occurred on April 30 released material in a different direction.

原文	???core.languages.en_GB???
文章編號	A62
期刊	Astronomy and Astrophysics
卷	573
DOIs	https://doi.org/10.1051/0004-6361/201424735
出版狀態	已出版 - 1 1月 2015

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10.1051/0004-6361/201424735

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Tubiana, C., Snodgrass, C., Bertini, I., Mottola, S., Vincent, J. B., Lara, L., Fornasier, S., Knollenberg, J., Thomas, N., Fulle, M., Agarwal, J., Bodewits, D., Ferri, F., Güttler, C., Gutierrez, P. J., La Forgia, F., Lowry, S., Magrin, S., Oklay, N., ... Wenzel, K. P. (2015). 67P/churyumov-gerasimenko: Activity between March and June 2014 as observed from Rosetta/OSIRIS. Astronomy and Astrophysics, 573, 文章 A62. https://doi.org/10.1051/0004-6361/201424735

@article{9b80226c15ca4c84bcc66e1a22cc1246,

title = "67P/churyumov-gerasimenko: Activity between March and June 2014 as observed from Rosetta/OSIRIS",

abstract = "Aims. 67P/Churyumov-Gerasimenko is the target comet of the ESA's Rosetta mission. After commissioning at the end of March 2014, the Optical, Spectroscopic, and Infrared Remote Imaging System (OSIRIS) onboard Rosetta, started imaging the comet and its dust environment to investigate how they change and evolve while approaching the Sun.Methods. We focused our work on Narrow Angle Camera (NAC) orange images and Wide Angle Camera (WAC) red and visible-610 images acquired between 2014 March 23 and June 24 when the nucleus of 67P was unresolved and moving from approximately 4.3 AU to 3.8 AU inbound. During this period the 67P - Rosetta distance decreased from 5 million to 120 thousand km.Results. Through aperture photometry, we investigated how the comet brightness varies with heliocentric distance. 67P was likely already weakly active at the end of March 2014, with excess flux above that expected for the nucleus. The comet's brightness was mostly constant during the three months of approach observations, apart from one outburst that occurred around April 30 and a second increase in flux after June 20. Coma was resolved in the profiles from mid-April. Analysis of the coma morphology suggests that most of the activity comes from a source towards the celestial north pole of the comet, but the outburst that occurred on April 30 released material in a different direction.",

keywords = "Comets: general, Comets: individual: 67P/Churyumov-Gerasimenko",

author = "C. Tubiana and C. Snodgrass and I. Bertini and S. Mottola and Vincent, {J. B.} and L. Lara and S. Fornasier and J. Knollenberg and N. Thomas and M. Fulle and J. Agarwal and D. Bodewits and F. Ferri and C. G{\"u}ttler and Gutierrez, {P. J.} and {La Forgia}, F. and S. Lowry and S. Magrin and N. Oklay and M. Pajola and R. Rodrigo and H. Sierks and A'hearn, {M. F.} and F. Angrilli and C. Barbieri and Barucci, {M. A.} and Bertaux, {J. L.} and G. Cremonese and {Da Deppo}, V. and B. Davidsson and {De Cecco}, M. and S. Debei and O. Groussin and Hviid, {S. F.} and W. Ip and L. Jorda and Keller, {H. U.} and D. Koschny and R. Kramm and E. K{\"u}hrt and M. K{\"u}ppers and M. Lazzarin and Lamy, {P. L.} and {Lopez Moreno}, {J. J.} and F. Marzari and H. Michalik and G. Naletto and H. Rickman and L. Sabau and Wenzel, {K. P.}",

note = "Publisher Copyright: {\textcopyright} 2014 ESO.",

year = "2015",

month = jan,

day = "1",

doi = "10.1051/0004-6361/201424735",

language = "???core.languages.en_GB???",

volume = "573",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

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Tubiana, C, Snodgrass, C, Bertini, I, Mottola, S, Vincent, JB, Lara, L, Fornasier, S, Knollenberg, J, Thomas, N, Fulle, M, Agarwal, J, Bodewits, D, Ferri, F, Güttler, C, Gutierrez, PJ, La Forgia, F, Lowry, S, Magrin, S, Oklay, N, Pajola, M, Rodrigo, R, Sierks, H, A'hearn, MF, Angrilli, F, Barbieri, C, Barucci, MA, Bertaux, JL, Cremonese, G, Da Deppo, V, Davidsson, B, De Cecco, M, Debei, S, Groussin, O, Hviid, SF, Ip, W, Jorda, L, Keller, HU, Koschny, D, Kramm, R, Kührt, E, Küppers, M, Lazzarin, M, Lamy, PL, Lopez Moreno, JJ, Marzari, F, Michalik, H, Naletto, G, Rickman, H, Sabau, L & Wenzel, KP 2015, '67P/churyumov-gerasimenko: Activity between March and June 2014 as observed from Rosetta/OSIRIS', Astronomy and Astrophysics, 卷 573, A62. https://doi.org/10.1051/0004-6361/201424735

TY - JOUR

T1 - 67P/churyumov-gerasimenko

T2 - Activity between March and June 2014 as observed from Rosetta/OSIRIS

AU - Tubiana, C.

AU - Snodgrass, C.

AU - Bertini, I.

AU - Mottola, S.

AU - Vincent, J. B.

AU - Lara, L.

AU - Fornasier, S.

AU - Knollenberg, J.

AU - Thomas, N.

AU - Fulle, M.

AU - Agarwal, J.

AU - Bodewits, D.

AU - Ferri, F.

AU - Güttler, C.

AU - Gutierrez, P. J.

AU - La Forgia, F.

AU - Lowry, S.

AU - Magrin, S.

AU - Oklay, N.

AU - Pajola, M.

AU - Rodrigo, R.

AU - Sierks, H.

AU - A'hearn, M. F.

AU - Angrilli, F.

AU - Barbieri, C.

AU - Barucci, M. A.

AU - Bertaux, J. L.

AU - Cremonese, G.

AU - Da Deppo, V.

AU - Davidsson, B.

AU - De Cecco, M.

AU - Debei, S.

AU - Groussin, O.

AU - Hviid, S. F.

AU - Ip, W.

AU - Jorda, L.

AU - Keller, H. U.

AU - Koschny, D.

AU - Kramm, R.

AU - Kührt, E.

AU - Küppers, M.

AU - Lazzarin, M.

AU - Lamy, P. L.

AU - Lopez Moreno, J. J.

AU - Marzari, F.

AU - Michalik, H.

AU - Naletto, G.

AU - Rickman, H.

AU - Sabau, L.

AU - Wenzel, K. P.

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Aims. 67P/Churyumov-Gerasimenko is the target comet of the ESA's Rosetta mission. After commissioning at the end of March 2014, the Optical, Spectroscopic, and Infrared Remote Imaging System (OSIRIS) onboard Rosetta, started imaging the comet and its dust environment to investigate how they change and evolve while approaching the Sun.Methods. We focused our work on Narrow Angle Camera (NAC) orange images and Wide Angle Camera (WAC) red and visible-610 images acquired between 2014 March 23 and June 24 when the nucleus of 67P was unresolved and moving from approximately 4.3 AU to 3.8 AU inbound. During this period the 67P - Rosetta distance decreased from 5 million to 120 thousand km.Results. Through aperture photometry, we investigated how the comet brightness varies with heliocentric distance. 67P was likely already weakly active at the end of March 2014, with excess flux above that expected for the nucleus. The comet's brightness was mostly constant during the three months of approach observations, apart from one outburst that occurred around April 30 and a second increase in flux after June 20. Coma was resolved in the profiles from mid-April. Analysis of the coma morphology suggests that most of the activity comes from a source towards the celestial north pole of the comet, but the outburst that occurred on April 30 released material in a different direction.

AB - Aims. 67P/Churyumov-Gerasimenko is the target comet of the ESA's Rosetta mission. After commissioning at the end of March 2014, the Optical, Spectroscopic, and Infrared Remote Imaging System (OSIRIS) onboard Rosetta, started imaging the comet and its dust environment to investigate how they change and evolve while approaching the Sun.Methods. We focused our work on Narrow Angle Camera (NAC) orange images and Wide Angle Camera (WAC) red and visible-610 images acquired between 2014 March 23 and June 24 when the nucleus of 67P was unresolved and moving from approximately 4.3 AU to 3.8 AU inbound. During this period the 67P - Rosetta distance decreased from 5 million to 120 thousand km.Results. Through aperture photometry, we investigated how the comet brightness varies with heliocentric distance. 67P was likely already weakly active at the end of March 2014, with excess flux above that expected for the nucleus. The comet's brightness was mostly constant during the three months of approach observations, apart from one outburst that occurred around April 30 and a second increase in flux after June 20. Coma was resolved in the profiles from mid-April. Analysis of the coma morphology suggests that most of the activity comes from a source towards the celestial north pole of the comet, but the outburst that occurred on April 30 released material in a different direction.

KW - Comets: general

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

UR - http://www.scopus.com/inward/record.url?scp=84919633230&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/201424735

DO - 10.1051/0004-6361/201424735

M3 - 期刊論文

AN - SCOPUS:84919633230

SN - 0004-6361

VL - 573

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

M1 - A62

ER -

67P/churyumov-gerasimenko: Activity between March and June 2014 as observed from Rosetta/OSIRIS

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