eprintid: 2361
rev_number: 10
eprint_status: archive
userid: 70
dir: disk0/00/00/23/61
datestamp: 2014-11-10 13:34:02
lastmod: 2015-03-25 09:16:39
status_changed: 2014-11-10 13:34:02
type: article
metadata_visibility: show
creators_name: Taricco, Carla
creators_name: Bhandari, Narendra
creators_name: Colombetti, Paolo
creators_name: Romero, Alberto
creators_name: Vivaldo, Gianna
creators_name: Sinha, Neeharika
creators_name: Jenniskens, Peter
creators_name: Shaddad, Muawia H.
creators_id: 
creators_id: 
creators_id: 
creators_id: 
creators_id: gianna.vivaldo@imtlucca.it
creators_id: 
creators_id: 
creators_id: 
title: Almahata Sitta meteorite: gamma-activity measurements at Monte dei Cappuccini Laboratory in Torino 
ispublished: pub
subjects: QB
subjects: QC
divisions: EIC
full_text_status: none
keywords: Meteoroids – Cosmic rays – Sun: activity – Sun: magnetic fields – Techniques: gamma spectroscopy – Sunspots – Interplanetary medium – Solar-terrestrial relations
abstract: The asteroid 2008 TC3 was telescopically seen prior to entering Earth’s atmosphere
and was predicted to fall in Sudan on October 7, 2008, as it actually happened.
Subsequently, many fragments were collected from the Nubian desert. At Monte
dei Cappuccini Laboratory (IFSI, INAF) in Torino, using a selective gamma spectrometer
we measured gamma rays from fragment #15, one of the largest retrieved, a ureilite of mass
75 g. Six cosmogenic radionuclides have been measured (46Sc, 57Co, 54Mn, 22Na, 60Co and
26Al). 60Co and 26Al activities allowed us to deduce that the fragment was located at a depth
of 41�14 cm inside the 1.5–2m radius asteroid. Moreover, 22Na activity is slightly greater
than expected on the basis of the average cosmic ray flux and this could be ascribed to the
prolonged solar minimum preceding the meteorite fall.
date: 2012
date_type: published
publication: Memorie della Società Astronomica Italiana
volume: Suppl.
number: 19
publisher: Società Astronomica Italiana
pagerange: 402-405
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 Vivaldo, Gianna and Sinha, Neeharika and Jenniskens, Peter and Shaddad, Muawia H.  Almahata Sitta meteorite: gamma-activity measurements at Monte dei Cappuccini Laboratory in Torino.  Memorie della Società Astronomica Italiana, Suppl. (19).  pp. 402-405.  ISSN 1824-016X      (2012)