Show simple item record

dc.contributor.authorLejoly, C.
dc.contributor.authorHarris, W.
dc.contributor.authorSamarasinha, N.
dc.contributor.authorMueller, B.E.A.
dc.contributor.authorHowell, E.
dc.contributor.authorBodnarik, J.
dc.contributor.authorSpringmann, A.
dc.contributor.authorKareta, T.
dc.contributor.authorSharkey, B.
dc.contributor.authorNoonan, J.
dc.contributor.authorCampaign, P.
dc.contributor.authorBedin, L.R.
dc.contributor.authorBosch, J.-G.
dc.contributor.authorBrosio, A.
dc.contributor.authorBryssinck, E.
dc.contributor.authorde Vanssay, J.-B.
dc.contributor.authorHambsch, F.-J.
dc.contributor.authorIvanova, O.
dc.contributor.authorKrushinsky, V.
dc.contributor.authorLin, Z.-Y.
dc.contributor.authorManzini, F.
dc.contributor.authorMaury, A.
dc.contributor.authorMoriya, N.
dc.contributor.authorOchner, P.
dc.contributor.authorOldani, V.
dc.date.accessioned2022-03-17T01:57:20Z
dc.date.available2022-03-17T01:57:20Z
dc.date.issued2022
dc.identifier.citationLejoly, C., Harris, W., Samarasinha, N., Mueller, B. E. A., Howell, E., Bodnarik, J., Springmann, A., Kareta, T., Sharkey, B., Noonan, J., Campaign, P., Bedin, L. R., Bosch, J.-G., Brosio, A., Bryssinck, E., de Vanssay, J.-B., Hambsch, F.-J., Ivanova, O., Krushinsky, V., … Oldani, V. (2022). Radial Distribution of the Dust Comae of Comets 45P/Honda–Mrkos–Pajdusáková and 46P/Wirtanen. Planetary Science Journal.
dc.identifier.issn2632-3338
dc.identifier.doi10.3847/PSJ/ac4501
dc.identifier.urihttp://hdl.handle.net/10150/663617
dc.description.abstractThere was an unprecedented opportunity to study the inner dust coma environments, where the dust and gas are not entirely decoupled, of comets 45P/Honda–Mrkos–Pajdusáková (45P/HMP) from 2016 December 26 to 2017 March 15, and 46P/Wirtanen from 2018 November 10 to 2019 February 13, both in visible wavelengths. The radial profile slopes of these comets were measured in the R and HB-BC filters most representative of dust, and deviations from a radially expanding coma were identified as significant. The azimuthally averaged radial profile slope of comet 45P/HMP gradually changes from −1.81 ± 0.20 at 5.24 days preperihelion to −0.35 ± 0.16 at 74.41 days postperihelion. Contrastingly, the radial profile slope of 46P/Wirtanen stays fairly constant over the observed time period at −1.05 ± 0.05. Additionally, we find that the radial profile of 46P/Wirtanen is azimuthally dependent on the sky-plane-projected solar position angle, while that of 45P/HMP is not. These results suggest that comets 45P/HMP and 46P/Wirtanen have vastly different coma dust environments and that their dust expansion properties are distinct. As evident from these two comets, well-resolved inner comae are vital for detailed characterization of dust environments. © 2022. The Author(s). Published by the American Astronomical Society.
dc.language.isoen
dc.publisherAmerican Astronomical Society
dc.rightsCopyright © 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleRadial Distribution of the Dust Comae of Comets 45P/Honda–Mrkos–Pajdusáková and 46P/Wirtanen
dc.typeArticle
dc.typetext
dc.contributor.departmentLunar and Planetary Laboratory, University of Arizona
dc.identifier.journalPlanetary Science Journal
dc.description.noteOpen access journal
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
dc.eprint.versionFinal published version
dc.source.journaltitlePlanetary Science Journal
refterms.dateFOA2022-03-17T01:57:20Z


Files in this item

Thumbnail
Name:
Lejoly_2022_Planet._Sci._J._3_ ...
Size:
2.195Mb
Format:
PDF
Description:
Final Published Version

This item appears in the following Collection(s)

Show simple item record

Copyright © 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.
Except where otherwise noted, this item's license is described as Copyright © 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.