RT Journal Article
T1 Near earth object 2012XJ112 as a source of bright bolides of achondritic nature
A1 Madiedo Gil, José María
A1 Trigo Rodríguez, Josep María
A1 Williams, I. P.
A1 Konovalova, N.
A1 Ortiz Moreno, José Luis
A1 Castro Tirado, Alberto J.
A1 Pastor, S.
A1 Reyes, J. A. de los
A1 Cabrera Caño, Jesús
AB We analyze the likely link between the recently discovered Near Earth Object2012XJ112 and a bright fireball observed over the south of Spain on December 27,2012. The bolide, with an absolute magnitude of -9±1, was simultaneously imagedduring the morning twilight from two meteor stations operated by the SPanish MeteorNetwork (SPMN). It was also observed by several casual witnesses. The emissionspectrum produced during the ablation of the meteoroid in the atmosphere was alsorecorded. From its analysis the chemical nature of this particle was inferred. Althoughour orbital association software identified several potential parent bodies for thismeteoroid, the analysis of the evolution of the orbital elements performed with the Mercury 6 symplectic integrator supports the idea that NEO 2012XJ112 is the source ofthis meteoroid. The implications of this potential association are discussed here. Inparticular, the meteoroid bulk chemistry is consistent with a basaltic achondrite, and thisemphasizes the importance to deduce from future Earth approaches the reflectancespectrum and taxonomic nature of 2012XJ112.
PB Oxford University Press
SN 0035-8711
SN 1365-2966 (electrónico)
YR 2014
FD 2014
LK http://hdl.handle.net/10272/9295
UL http://hdl.handle.net/10272/9295
LA eng
NO Madiedo Gil, José María ; Trigo Rodríguez, Josep María ; Williams, I.P., Konovalova, N., Ortiz Moreno, J.L., Castro Tirado, A.J., Pastor, S., Reyes, J.A., Cabrera Caño, J.: "Near earth object 2012XJ112 as a source of bright bolides of achondritic nature".  Monthly Notices of the Royal Astronomical Society. Vol. 439, n. 3, pág. 3704-3711 , (2014). ISSN 0035-8711
NO We acknowledge support from the Spanish Ministry of Science and Innovation (projects AYA2009-13227, AYA2011-26522 and AYA2009-06330-E) and Junta de Andalucia (project P09-FQM-4555). The authors are also grateful to Paul Warren (IGPP/UCLA), Rick Binzel (MIT), Hap McSween (Univ. Tennessee) and Larry Nittler (Carnegie Inst.) for providing useful comments and the bulk chemistry data of achondrite groups.
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026