000133234 001__ 133234
000133234 005__ 20250923084419.0
000133234 0247_ $$2doi$$a10.3847/2041-8213/ad2b65
000133234 0248_ $$2sideral$$a137944
000133234 037__ $$aART-2024-137944
000133234 041__ $$aeng
000133234 100__ $$aLaforet, Sylvain
000133234 245__ $$aLinking Cause and Effect: Nanoscale Vibrational Spectroscopy of Space Weathering from Asteroid Ryugu
000133234 260__ $$c2024
000133234 5060_ $$aAccess copy available to the general public$$fUnrestricted
000133234 5203_ $$aAirless bodies are subjected to space-weathering effects that modify the first few microns of their surface. Therefore, understanding their impact on the optical properties of asteroids is key to the interpretation of their color variability and infrared reflectance observations. The recent Hayabusa2 sample return mission to asteroid Ryugu offers the first opportunity to study these effects, in the case of the most abundant spectral type among the mainasteroid belt, C-type objects. This study employs vibrational electron energy-loss spectroscopy in the transmission electron microscope to achieve the spatial resolution required to measure the distinct mid-infrared spectral signature of Ryuguʼs space-weathered surface. The comparison with the spectrum of the pristine underlying matrix reveals the loss of structural -OH and C-rich components in the space-weathered layers, providing direct
experimental evidence that exposure to the space environment tends to mask the optical signatures of phyllosilicates and carbonaceous matter. Our findings should contribute to rectifying potential underestimations of water and carbon content of C-type asteroids when studied through remote sensing with new-generation telescopes.
000133234 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000133234 590__ $$a11.7$$b2024
000133234 592__ $$a3.713$$b2024
000133234 591__ $$aASTRONOMY & ASTROPHYSICS$$b7 / 84 = 0.083$$c2024$$dQ1$$eT1
000133234 593__ $$aSpace and Planetary Science$$c2024$$dQ1
000133234 593__ $$aAstronomy and Astrophysics$$c2024$$dQ1
000133234 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000133234 700__ $$aLe Guillou, Corentin
000133234 700__ $$ade la Peña, Francisco
000133234 700__ $$aWalls, Michael
000133234 700__ $$aTizei, Luiz H. G.
000133234 700__ $$aMarinova, Maya
000133234 700__ $$aBeck, Pierre
000133234 700__ $$aPhan, Van T. H.
000133234 700__ $$aJacob, Damien
000133234 700__ $$aMouloud, Bahae-eddine
000133234 700__ $$aHallatt, Daniel
000133234 700__ $$0(orcid)0000-0001-5079-621X$$aPelaez-Fernandez, Mario$$uUniversidad de Zaragoza
000133234 700__ $$aViennet, Jean-Christophe
000133234 700__ $$aTroadec, David
000133234 700__ $$aNoguchi, Takaaki
000133234 700__ $$aMatsumoto, Toru
000133234 700__ $$aMiyake, Akira
000133234 700__ $$aYurimoto, Hisayoshi
000133234 700__ $$aLeroux, Hugues
000133234 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000133234 773__ $$g963, 2 (2024), L45 [11 pp.]$$pASTROPHYSICAL JOURNAL LETTERS$$tASTROPHYSICAL JOURNAL LETTERS$$x2041-8205
000133234 8564_ $$s1552957$$uhttps://zaguan.unizar.es/record/133234/files/texto_completo.pdf$$yVersión publicada
000133234 8564_ $$s3549261$$uhttps://zaguan.unizar.es/record/133234/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000133234 909CO $$ooai:zaguan.unizar.es:133234$$particulos$$pdriver
000133234 951__ $$a2025-09-22-14:35:04
000133234 980__ $$aARTICLE