info:eu-repo/semantics/article
Assessment of 53Mn deposition on Earth via accelerator mass spectrometry
Fecha
2018-10Registro en:
Rodrigues Ferreira Maltez, Dario Pablo; Negri, Agustín E.; Balpardo, Christian Guillermo; Arazi, Andres; Faestermann, Thomas; et al.; Assessment of 53Mn deposition on Earth via accelerator mass spectrometry; Pergamon-Elsevier Science Ltd; Applied Radiation and Isotopes; 140; 10-2018; 342-346
0969-8043
CONICET Digital
CONICET
Autor
Rodrigues Ferreira Maltez, Dario Pablo
Negri, Agustín E.
Balpardo, Christian Guillermo
Arazi, Andres
Faestermann, Thomas
Fernandez Niello, Jorge Oscar
Fimiani, Leticia
Gómez Guzmán, José Manuel
Hain, Karin
Korschinek, Gunther
Ludwig, Peter
Marti, Guillermo V.
Resumen
The 53Mn flux onto Earth is a quantity relevant for different extraterrestrial and astrophysical questions. It is a proxy for related fluxes, such as supernova-produced material or interplanetary dust particles. In this work, we performed a first attempt to assess the 53Mn flux by measuring the 53Mn/10Be isotopic ratio in a 1400 L sample of molten Antarctic snow by AMS (Accelerator Mass Spectrometry). Using the 10Be production rate in the atmosphere, an upper limit of 5.5 × 103 atoms cm−2 yr−1 was estimated for the deposition of extraterrestrial 53Mn. This result is compatible with one of the two discrepant values existing in the literature.