Solar Orbiter’s encounter with the tail of comet C/2019 Y4 (ATLAS): Magnetic field draping and cometary pick-up ion waves

Solar Orbiter’s encounter with the tail of comet C/2019 Y4 (ATLAS): Magnetic field draping and cometary pick-up ion waves. Matteini, L., Laker, R., Horbury, T., Woodham, L., Bale, S. D., Stawarz, J. E., Woolley, T., Steinvall, K., Jones, G. H., Grant, S. R., Afghan, Q., Galand, M., O’Brien, H., Evans, V., Angelini, V., Maksimovic, M., Chust, T., Khotyaintsev, Y., Krasnoselskikh, V., Kretzschmar, M., Lorfèvre, E., Plettemeier, D., Souček, J., Steller, M., Štverák, Š., Trávníček, P., Vaivads, A., Vecchio, A., Wimmer-Schweingruber, R. F., Ho, G. C., Gómez-Herrero, R., Rodríguez-Pacheco, J., Louarn, P., Fedorov, A., Owen, C. J., Bruno, R., Livi, S., Zouganelis, I., & Müller, D. Astronomy & Astrophysics, 656:A39, December, 2021.

Paper doi abstract bibtex

Methods. We analysed data from all in situ instruments on board Solar Orbiter and compared their independent measurements in order to identify and characterize the nature of structures and waves observed in the plasma when the encounter was predicted. Results. We identiﬁed a magnetic ﬁeld structure observed at the start of 4 June, associated with a full magnetic reversal, a local deceleration of the ﬂow and large plasma density, and enhanced dust and energetic ions events. The cross-comparison of all these observations support a possible cometary origin for this structure and suggests the presence of magnetic ﬁeld draping around some low-ﬁeld and high-density object. Inside and around this large scale structure, several ion-scale wave-forms are detected that are consistent with small-scale waves and structures generated by cometary pick-up ion instabilities. Conclusions. Solar Orbiter measurements are consistent with the crossing through a magnetic and plasma structure of cometary origin embedded in the ambient solar wind. We suggest that this corresponds to the magnetotail of one of the fragments of comet ATLAS or to a portion of the tail that was previously disconnected and advected past the spacecraft by the solar wind.

@article{matteini_solar_2021,
	title = {Solar {Orbiter}’s encounter with the tail of comet {C}/2019 {Y4} ({ATLAS}): {Magnetic} field draping and cometary pick-up ion waves},
	volume = {656},
	issn = {0004-6361, 1432-0746},
	shorttitle = {Solar {Orbiter}’s encounter with the tail of comet {C}/2019 {Y4} ({ATLAS})},
	url = {https://www.aanda.org/10.1051/0004-6361/202141229},
	doi = {10.1051/0004-6361/202141229},
	abstract = {Methods. We analysed data from all in situ instruments on board Solar Orbiter and compared their independent measurements in order to identify and characterize the nature of structures and waves observed in the plasma when the encounter was predicted.
Results. We identiﬁed a magnetic ﬁeld structure observed at the start of 4 June, associated with a full magnetic reversal, a local deceleration of the ﬂow and large plasma density, and enhanced dust and energetic ions events. The cross-comparison of all these observations support a possible cometary origin for this structure and suggests the presence of magnetic ﬁeld draping around some low-ﬁeld and high-density object. Inside and around this large scale structure, several ion-scale wave-forms are detected that are consistent with small-scale waves and structures generated by cometary pick-up ion instabilities.
Conclusions. Solar Orbiter measurements are consistent with the crossing through a magnetic and plasma structure of cometary origin embedded in the ambient solar wind. We suggest that this corresponds to the magnetotail of one of the fragments of comet ATLAS or to a portion of the tail that was previously disconnected and advected past the spacecraft by the solar wind.},
	language = {en},
	urldate = {2022-07-12},
	journal = {Astronomy \& Astrophysics},
	author = {Matteini, L. and Laker, R. and Horbury, T. and Woodham, L. and Bale, S. D. and Stawarz, J. E. and Woolley, T. and Steinvall, K. and Jones, G. H. and Grant, S. R. and Afghan, Q. and Galand, M. and O’Brien, H. and Evans, V. and Angelini, V. and Maksimovic, M. and Chust, T. and Khotyaintsev, Y. and Krasnoselskikh, V. and Kretzschmar, M. and Lorfèvre, E. and Plettemeier, D. and Souček, J. and Steller, M. and Štverák, Š. and Trávníček, P. and Vaivads, A. and Vecchio, A. and Wimmer-Schweingruber, R. F. and Ho, G. C. and Gómez-Herrero, R. and Rodríguez-Pacheco, J. and Louarn, P. and Fedorov, A. and Owen, C. J. and Bruno, R. and Livi, S. and Zouganelis, I. and Müller, D.},
	month = dec,
	year = {2021},
	pages = {A39},
}

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J.","Bruno, R.","Livi, S.","Zouganelis, I.","Müller, D."],"bibdata":{"bibtype":"article","type":"article","title":"Solar Orbiter’s encounter with the tail of comet C/2019 Y4 (ATLAS): Magnetic field draping and cometary pick-up ion waves","volume":"656","issn":"0004-6361, 1432-0746","shorttitle":"Solar Orbiter’s encounter with the tail of comet C/2019 Y4 (ATLAS)","url":"https://www.aanda.org/10.1051/0004-6361/202141229","doi":"10.1051/0004-6361/202141229","abstract":"Methods. We analysed data from all in situ instruments on board Solar Orbiter and compared their independent measurements in order to identify and characterize the nature of structures and waves observed in the plasma when the encounter was predicted. Results. We identiﬁed a magnetic ﬁeld structure observed at the start of 4 June, associated with a full magnetic reversal, a local deceleration of the ﬂow and large plasma density, and enhanced dust and energetic ions events. The cross-comparison of all these observations support a possible cometary origin for this structure and suggests the presence of magnetic ﬁeld draping around some low-ﬁeld and high-density object. Inside and around this large scale structure, several ion-scale wave-forms are detected that are consistent with small-scale waves and structures generated by cometary pick-up ion instabilities. Conclusions. Solar Orbiter measurements are consistent with the crossing through a magnetic and plasma structure of cometary origin embedded in the ambient solar wind. 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We analysed data from all in situ instruments on board Solar Orbiter and compared their independent measurements in order to identify and characterize the nature of structures and waves observed in the plasma when the encounter was predicted.\nResults. We identiﬁed a magnetic ﬁeld structure observed at the start of 4 June, associated with a full magnetic reversal, a local deceleration of the ﬂow and large plasma density, and enhanced dust and energetic ions events. The cross-comparison of all these observations support a possible cometary origin for this structure and suggests the presence of magnetic ﬁeld draping around some low-ﬁeld and high-density object. Inside and around this large scale structure, several ion-scale wave-forms are detected that are consistent with small-scale waves and structures generated by cometary pick-up ion instabilities.\nConclusions. Solar Orbiter measurements are consistent with the crossing through a magnetic and plasma structure of cometary origin embedded in the ambient solar wind. We suggest that this corresponds to the magnetotail of one of the fragments of comet ATLAS or to a portion of the tail that was previously disconnected and advected past the spacecraft by the solar wind.},\n\tlanguage = {en},\n\turldate = {2022-07-12},\n\tjournal = {Astronomy \\& Astrophysics},\n\tauthor = {Matteini, L. and Laker, R. and Horbury, T. and Woodham, L. and Bale, S. D. and Stawarz, J. E. and Woolley, T. and Steinvall, K. and Jones, G. H. and Grant, S. R. and Afghan, Q. and Galand, M. and O’Brien, H. and Evans, V. and Angelini, V. and Maksimovic, M. and Chust, T. and Khotyaintsev, Y. and Krasnoselskikh, V. and Kretzschmar, M. and Lorfèvre, E. and Plettemeier, D. and Souček, J. and Steller, M. and Štverák, Š. and Trávníček, P. and Vaivads, A. and Vecchio, A. and Wimmer-Schweingruber, R. F. and Ho, G. 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J.","Bruno, R.","Livi, S.","Zouganelis, I.","Müller, D."],"key":"matteini_solar_2021","id":"matteini_solar_2021","bibbaseid":"matteini-laker-horbury-woodham-bale-stawarz-woolley-steinvall-etal-solarorbitersencounterwiththetailofcometc2019y4atlasmagneticfielddrapingandcometarypickupionwaves-2021","role":"author","urls":{"Paper":"https://www.aanda.org/10.1051/0004-6361/202141229"},"metadata":{"authorlinks":{}},"html":""},"bibtype":"article","biburl":"https://bibbase.org/zotero/lloydwoodham","dataSources":["KswDSEBpD9sHPxkz4"],"keywords":[],"search_terms":["solar","orbiter","encounter","tail","comet","2019","atlas","magnetic","field","draping","cometary","pick","ion","waves","matteini","laker","horbury","woodham","bale","stawarz","woolley","steinvall","jones","grant","afghan","galand","o’brien","evans","angelini","maksimovic","chust","khotyaintsev","krasnoselskikh","kretzschmar","lorfèvre","plettemeier","souček","steller","štverák","trávníček","vaivads","vecchio","wimmer-schweingruber","ho","gómez-herrero","rodríguez-pacheco","louarn","fedorov","owen","bruno","livi","zouganelis","müller"],"title":"Solar Orbiter’s encounter with the tail of comet C/2019 Y4 (ATLAS): Magnetic field draping and cometary pick-up ion waves","year":2021}