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dc.contributor.authorMuinonen, K.
dc.contributor.authorPenttilä, A.
dc.contributor.authorCellino, A.
dc.contributor.authorBelskaya, I. N.
dc.contributor.authorDelbò, M.
dc.contributor.authorLevasseur-Regourd, A. C.
dc.contributor.authorTedesco, E. F.
dc.date.accessioned2021-02-12T22:54:08Z
dc.date.available2021-02-12T22:54:08Z
dc.date.issued2009-01-01
dc.identifier.citationMuinonen, K., Penttilä, A., Cellino, A., Belskaya, I. N., Delbò, M., Levasseur‐Regourd, A. C., & Tedesco, E. F. (2009). Asteroid photometric and polarimetric phase curves: Joint linear‐exponential modeling. Meteoritics & Planetary Science, 44(12), 1937-1946.
dc.identifier.issn1945-5100
dc.identifier.doi10.1111/j.1945-5100.2009.tb02003.x
dc.identifier.urihttp://hdl.handle.net/10150/656657
dc.description.abstractWe present Markov-Chain Monte-Carlo methods (MCMC) for the derivation of empirical model parameters for photometric and polarimetric phase curves of asteroids. Here we model the two phase curves jointly at phase angles approximately <25 degrees using a linear-exponential model, accounting for the opposition effect in disk-integrated brightness and the negative branch in the degree of linear polarization. We apply the MCMC methods to V-band phase curves of asteroids 419 Aurelia (taxonomic class F), 24 Themis (C), 1 Ceres (G), 20 Massalia (S), 55 Pandora (M), and 64 Angelina (E). We show that the photometric and polarimetric phase curves can be described using a common nonlinear parameter for the angular widths of the opposition effect and negative-polarization branch, thus supporting the hypothesis of common physical mechanisms being responsible for the phenomena. Furthermore, incorporating polarimetric observations removes the indeterminacy of the opposition effect for 1 Ceres. We unveil a trend in the interrelation between the enhancement factor of the opposition effect and the angular width: the enhancement factor decreases with decreasing angular width. The minimum polarization and the polarimetric slope at the inversion angle show systematic trends when plotted against the angular width and the normalized photometric slope parameter. Our new approach allows improved analyses of possible similarities and differences among asteroidal surfaces.
dc.language.isoen
dc.publisherThe Meteoritical Society
dc.relation.urlhttps://meteoritical.org/
dc.rightsCopyright © The Meteoritical Society
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectasteroid surface
dc.subjectcometary nucleus
dc.subjectcosmic dust
dc.subjectremote sensing
dc.titleAsteroid photometric and polarimetric phase curves: Joint linear-exponential modeling
dc.typeArticle
dc.typetext
dc.identifier.journalMeteoritics & Planetary Science
dc.description.collectioninformationThe Meteoritics & Planetary Science archives are made available by the Meteoritical Society and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform February 2021
dc.source.volume44
dc.source.issue12
dc.source.beginpage1937
dc.source.endpage1946
refterms.dateFOA2021-02-12T22:54:08Z


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