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dc.contributor.authorHasegawa, Sunao
dc.contributor.authorDeMeo, Francesca E
dc.contributor.authorMarsset, Michaël
dc.contributor.authorHanuš, Josef
dc.contributor.authorAvdellidou, Chrysa
dc.contributor.authorDelbo, Marco
dc.contributor.authorBus, Schelte J
dc.contributor.authorHanayama, Hidekazu
dc.contributor.authorHoriuchi, Takashi
dc.contributor.authorTakir, Driss
dc.contributor.authorJehin, Emmanuël
dc.contributor.authorFerrais, Marin
dc.contributor.authorGeem, Jooyeon
dc.contributor.authorIm, Myungshin
dc.contributor.authorSeo, Jinguk
dc.contributor.authorBach, Yoonsoo P
dc.contributor.authorJin, Sunho
dc.contributor.authorIshiguro, Masateru
dc.contributor.authorKuroda, Daisuke
dc.contributor.authorBinzel, Richard P
dc.contributor.authorNakamura, Akiko M
dc.contributor.authorYang, Bin
dc.contributor.authorVernazza, Pierre
dc.date.accessioned2023-02-08T18:42:47Z
dc.date.available2023-02-08T18:42:47Z
dc.date.issued2022
dc.identifier.urihttps://hdl.handle.net/1721.1/147980
dc.description.abstract<jats:title>Abstract</jats:title> <jats:p>The surfaces of airless bodies like asteroids in the solar system are known to be affected by space weathering. Experiments simulating space weathering are essential for studying the effects of this process on meteorite samples, but the problem is that the time spent to reproduce space weathering in these experiments is billions of times shorter than the actual phenomenon. In 2010 December, the T-type asteroid 596 Scheila underwent a collision with an impactor a few tens of meters in size. A decade later, there is an opportunity to study how the surface layer of this asteroid is being altered by space weathering after the impact. To do so, we performed visible spectrophotometric and near-infrared spectroscopic observations of 596 Scheila. The acquired spectrum is consistent with those observed shortly after the 2010 impact event within the observational uncertainty range. This indicates that the surface color of dark asteroids is not noticeably changed by space weathering over a 10 yr period. This study is the first to investigate color changes due to space weathering on an actual asteroid surface in the solar system. Considering that fresh layers are regularly created on asteroid surfaces by collisions, we suggest a genetic link between D/T-type and dark (low albedo) X-complex asteroids and very red objects such as 269 Justitia, 732 Tjilaki, and 203 Pompeja. New observations show that 203 Pompeja has an X-type-like surface, with some local surface areas exhibiting a very red spectrum.</jats:p>en_US
dc.language.isoen
dc.publisherAmerican Astronomical Societyen_US
dc.relation.isversionof10.3847/2041-8213/AC92E4en_US
dc.rightsCreative Commons Attribution 4.0 International licenseen_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.sourceIOP Publishingen_US
dc.titleSpectral Evolution of Dark Asteroid Surfaces Induced by Space Weathering over a Decadeen_US
dc.typeArticleen_US
dc.identifier.citationHasegawa, Sunao, DeMeo, Francesca E, Marsset, Michaël, Hanuš, Josef, Avdellidou, Chrysa et al. 2022. "Spectral Evolution of Dark Asteroid Surfaces Induced by Space Weathering over a Decade." The Astrophysical Journal Letters, 939 (1).
dc.contributor.departmentMassachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciencesen_US
dc.relation.journalThe Astrophysical Journal Lettersen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2023-02-08T18:30:58Z
dspace.orderedauthorsHasegawa, S; DeMeo, FE; Marsset, M; Hanuš, J; Avdellidou, C; Delbo, M; Bus, SJ; Hanayama, H; Horiuchi, T; Takir, D; Jehin, E; Ferrais, M; Geem, J; Im, M; Seo, J; Bach, YP; Jin, S; Ishiguro, M; Kuroda, D; Binzel, RP; Nakamura, AM; Yang, B; Vernazza, Pen_US
dspace.date.submission2023-02-08T18:31:01Z
mit.journal.volume939en_US
mit.journal.issue1en_US
mit.licensePUBLISHER_CC
mit.metadata.statusAuthority Work and Publication Information Neededen_US


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