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Energy signature of ton TNT-class impacts: analysis of the 22 December 2018 fireball over Western Pyrenees

hal.structure.identifierAstronomical Institute of the Romanian Academy
hal.structure.identifierInstitut de Mécanique Céleste et de Calcul des Ephémérides [IMCCE]
hal.structure.identifierUniversity of Bucharest [UniBuc]
dc.contributor.authorANGHEL, S
hal.structure.identifierUniversity of Oldenburg
dc.contributor.authorDROLSHAGEN, E
hal.structure.identifierUniversity of Oldenburg
dc.contributor.authorOTT, T
hal.structure.identifierAstronomical Institute of the Romanian Academy
hal.structure.identifierInstitut de Mécanique Céleste et de Calcul des Ephémérides [IMCCE]
dc.contributor.authorBIRLAN, M
hal.structure.identifierInstitut de Mécanique Céleste et de Calcul des Ephémérides [IMCCE]
dc.contributor.authorCOLAS, F
hal.structure.identifierAstronomical Institute of the Romanian Academy
hal.structure.identifierInstitut de Mécanique Céleste et de Calcul des Ephémérides [IMCCE]
dc.contributor.authorNEDELCU, D
hal.structure.identifierAgence Spatiale Européenne = European Space Agency [ESA]
dc.contributor.authorKOSCHNY, D
hal.structure.identifierInstitut de Mécanique Céleste et de Calcul des Ephémérides [IMCCE]
hal.structure.identifierCosmochimie [IMPMC] [IMPMC_COSMO]
dc.contributor.authorZANDA, B
hal.structure.identifierInstitut de Mécanique Céleste et de Calcul des Ephémérides [IMCCE]
hal.structure.identifierGéosciences Paris Saclay [GEOPS]
dc.contributor.authorBOULEY, S
hal.structure.identifierInstitut de Mécanique Céleste et de Calcul des Ephémérides [IMCCE]
dc.contributor.authorJEANNE, S
hal.structure.identifierInstitut Pythéas [OSU PYTHEAS]
dc.contributor.authorMALGOYRE, A
hal.structure.identifierInstitut Pythéas [OSU PYTHEAS]
dc.contributor.authorBLANPAIN, C
hal.structure.identifierCentre européen de recherche et d'enseignement des géosciences de l'environnement [CEREGE]
dc.contributor.authorGATTACCECA, J
hal.structure.identifierLaboratoire d'Astrophysique de Marseille [LAM]
dc.contributor.authorJORDA, L
hal.structure.identifierInstitut Pythéas [OSU PYTHEAS]
dc.contributor.authorLECUBIN, J
hal.structure.identifierInstitut de Mécanique Céleste et de Calcul des Ephémérides [IMCCE]
dc.contributor.authorRAULT, J
hal.structure.identifierInstitut de Mécanique Céleste et de Calcul des Ephémérides [IMCCE]
dc.contributor.authorVAUBAILLON, J
hal.structure.identifierLaboratoire d'Astrophysique de Marseille [LAM]
dc.contributor.authorVERNAZZA, P
hal.structure.identifierEscuela de Ingeniería de Bilbao
dc.contributor.authorHUESO, R
hal.structure.identifierUniversitat Autònoma de Barcelona = Autonomous University of Barcelona = Universidad Autónoma de Barcelona [UAB]
dc.contributor.authorPEÑA-ASENSIO, E
hal.structure.identifierInstitut de Ciencies del Cosmos [ICCUB]
dc.contributor.authorRIBAS, S
hal.structure.identifierUniversitat Autònoma de Barcelona = Autonomous University of Barcelona = Universidad Autónoma de Barcelona [UAB]
dc.contributor.authorRIMOLA, A
hal.structure.identifierEscuela de Ingeniería de Bilbao
hal.structure.identifierUniversidad del Pais Vasco / Euskal Herriko Unibertsitatea [Espagne] [UPV/EHU]
dc.contributor.authorSÁNCHEZ-LAVEGA, A
hal.structure.identifierInstitut d'Estudis Catalans
dc.contributor.authorTAPIA, M
hal.structure.identifierFacultat de Ciències
dc.contributor.authorTRIGO-RODRIGUEZ, J
hal.structure.identifierEtablissement public des stations d'altitude [EPSA]
dc.contributor.authorCAUHAPE, P
hal.structure.identifierAcadémie des sciences [Paris, France]
dc.contributor.authorDAVADAN, C
hal.structure.identifierObservatoire de Dax
dc.contributor.authorDUPOUY, P
hal.structure.identifierEtablissement public des stations d'altitude [EPSA]
dc.contributor.authorHERPIN, M
hal.structure.identifierEtablissement public des stations d'altitude [EPSA]
dc.contributor.authorROUSSEU, D
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorTREGON, B
dc.date.issued2021-10
dc.identifier.issn0035-8711
dc.description.abstractEnAbstract The increase in detector sensitivity and availability in the past three decades has allowed us to derive knowledge of the meteoroid flux and impact energy into the Earth’s atmosphere. We present the multi-instrument detected 22 December 2018 fireball over Western Pyrenees, and compare several techniques aiming to obtain a reliable method to be used when measuring impacts of similar scale. From trajectory data alone, we found a bulk density of 3.5 g/cm3 to be the most likely value for the Pyrenean meteoroid. This allowed to further constrain the dynamic mass, which translated into a kinetic energy of 1 ton TNT (4.184 · 109 J). For the second energy derivation, via the fireball’s corrected optical radiation, we obtained a more accurate empirical relation measuring well studied bolides . The result approximates to 1.1 ton TNT, which is notably close to the nominal dynamic result, and agrees with the lower margin of the seismic-based energy estimation, yet way lower than the infrasound estimate. Based on the relation derived in this study, we consider the nominal estimate from both the dynamic and photometric methods to be the most accurate value of deposited energy (1 ton TNT). We show that the combination of these two methods can be used to infer the meteoroid density. Among the methods presented in this paper, we found that the optical energy is the most reliable predictor of impact energy near the ton TNT-scale.
dc.language.isoen
dc.publisherOxford University Press (OUP): Policy P - Oxford Open Option A
dc.title.enEnergy signature of ton TNT-class impacts: analysis of the 22 December 2018 fireball over Western Pyrenees
dc.typeArticle de revue
dc.identifier.doi10.1093/mnras/stab2968
dc.subject.halPlanète et Univers [physics]
bordeaux.journalMonthly Notices of the Royal Astronomical Society
bordeaux.peerReviewedoui
hal.identifierhal-03407174
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03407174v1
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