@article{eprints2360,
           month = {November},
          volume = {45},
          number = {10-11},
           pages = {1743--1750},
           title = {Cosmogenic radioisotopes in the Almahata Sitta ureilite},
            year = {2010},
         journal = {Meteoritics and Planetary Science},
       publisher = {Wiley},
          author = {Carla Taricco and Narendra Bhandari and Paolo Colombetti and Alberto Romero and Gianna Vivaldo and Neeharika Sinha and Peter Jenniskens and Muawia H. Shaddad and G. M. Ballabh},
        abstract = {Asteroid 2008 TC3 was predicted to fall in Sudan on October 7, 2008, and 2 months later, 15 meteorite fragments were recovered from the Nubian Desert. Most of these fragments were classified as polymict ureilites. In the largest ureilitic fragment \#15, weighing 75 g, we have measured six gamma emitting radionuclides (46Sc, 57Co, 54Mn, 22Na, 60Co, and 26Al) by nondestructive whole rock counting using a sensitive gamma-ray spectrometer. The activities of 60Co, produced mainly by neutron capture in cobalt, and 26Al indicate that fragment \#15 was located at a depth of 41 {$\pm$} 14 cm inside the 1.5?2 m radius asteroid. The activity of other radionuclides is also consistent with this shielding depth within the asteroid. The 22Na/26Al activity ratio is higher than expected for the average cosmic ray flux, probably due to the unusually prolonged solar minimum before the fall.},
             url = {http://eprints.imtlucca.it/2360/}
}