eprintid: 2355
rev_number: 8
eprint_status: archive
userid: 70
dir: disk0/00/00/23/55
datestamp: 2014-11-10 11:20:52
lastmod: 2015-03-25 09:16:39
status_changed: 2014-11-10 11:20:52
type: article
metadata_visibility: show
creators_name: Taricco, Carla
creators_name: Bhandari, Narendra
creators_name: Colombetti, Paolo
creators_name: Romero, Alberto
creators_name: Verma, Neeharika
creators_name: Vivaldo, Gianna
creators_id: 
creators_id: 
creators_id: 
creators_id: 
creators_id: 
creators_id: gianna.vivaldo@imtlucca.it
title: Reconstruction of solar activity variations in the past by measurement of cosmogenic radioisotopes in meteorites
ispublished: pub
subjects: QB
divisions: EIC
full_text_status: none
keywords: Sun: activity – Meteoroids – Cosmic rays – Sun: magnetic fields – Techniques: gamma spectroscopy – Sunspots – Interplanetary medium – Solar-terrestrial relations
abstract: Many reconstructions of solar activity variations in the past are based on the measurement of cosmogenic isotopes (such as 14C and 10Be) stored in terrestrial archives. The concentration of these isotopes is however influenced by terrestrial phenomena. In order to avoid this problem our group is studying cosmogenic radioisotopes in meteorites at the underground laboratory of Monte dei Cappuccini in Torino (Italy). Measurement of 44Ti decay activity in 21 meteorites has revealed a centennial oscillation superimposed on a decreasing trend of the cosmic ray flux in the last 235 years. The decreasing trend is consistent with some models based on solar open magnetic field variations. We show some preliminary results obtained using a new acquisition system we have recently developed and set up in order to enhance selectivity of 44Ti detection.
date: 2009
date_type: published
publication: Memorie della Società Astronomica Italiana
volume: 80
number: 1
publisher: Società Astronomica Italiana
pagerange: 284-286
refereed: TRUE
issn: 1824-016X
related_url_url: http://www.sait.it/
related_url_type: pub
citation:   Taricco, Carla and Bhandari, Narendra and Colombetti, Paolo and Romero, Alberto and Verma, Neeharika and Vivaldo, Gianna  Reconstruction of solar activity variations in the past by measurement of cosmogenic radioisotopes in meteorites.  Memorie della Società Astronomica Italiana, 80 (1).  pp. 284-286.  ISSN 1824-016X      (2009)