Assessment of 53Mn deposition on Earth via accelerator mass spectrometry

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...

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Bibliographic Details
Language:unknown
Published: 2018
Subjects:
Deposition
Extraterrestrial atmospheres
Particle accelerators
Upper atmosphere
Accelerator mass spectrometry
Interplanetary dust particles
Isotopic ratios
Production rates
Upper limits
Mass spectrometry
Antarctica
article
atmosphere
Antarctic
Antarc*
Online Access:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09698043_v140_n_p342_Rodrigues
https://hdl.handle.net/20.500.12110/paper_09698043_v140_n_p342_Rodrigues
Description
Summary: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. © 2018 Elsevier Ltd

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