relation: http://eprints.imtlucca.it/2361/
title: Almahata Sitta meteorite: gamma-activity measurements at Monte dei Cappuccini Laboratory in Torino 
creator: Taricco, Carla
creator: Bhandari, Narendra
creator: Colombetti, Paolo
creator: Romero, Alberto
creator: Vivaldo, Gianna
creator: Sinha, Neeharika
creator: Jenniskens, Peter
creator: Shaddad, Muawia H.
subject: QB Astronomy
subject: QC Physics
description: 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.
publisher: Società Astronomica Italiana
date: 2012
type: Article
type: PeerReviewed
identifier:   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)