Cosmogenic radioisotopes in the Almahata Sitta ureilite

Almahata Sitta (=asteroid 2008 TC3) and the search for the ureilite parent body

This article explores what the recovery of 2008 TC3 in the form of the Almahata Sitta meteorites may tell us about the source region of ureilites in the main asteroid belt. An investigation is made into what is known about asteroids with roughly the same spectroscopic signature as 2008 TC3. A population of low-inclination near-Earth asteroids is identified with spectra similar to 2008 TC3. Five...

Magnetism and mineralogy of Almahata Sitta polymict ureilite (= asteroid 2008 TC3): Implications for the ureilite parent body magnetic field

The Almahata Sitta meteorite is the first case of recovered extraterrestrial material originating from an asteroid that was detected in near Earth space shortly before entering and exploding in the high atmosphere. The aims of our project within the 2008 TC3 consortium were investigating Almahata Sitta’s (AS) magnetic signature, phase composition and mineralogy, focussing on the opaque minerals...

A Breccia of Ureilitic and C2 Carbonaceous Chondrite Materials from Almahata Sitta: Implications for the Regolith of Ureilitic Asteroids

ALMAHATA SITTA: IMPLICATIONS FOR THE REGOLITH OF UREILITIC ASTEROIDS. C.A. Goodrich, A. M. Fioretti, M. Zolensky, M. Fries, M. Shaddad, I. Kohl, E. Young, and P. Jenniskens. Lunar and Planetary Institute, Houston TX, USA ([email protected]); CNR – Istituto di Geoscienze e Georisorse, Padova, Italy; ARES, NASA JSC, Houston TX, USA; Dept. Physics, Univ. of Khartoum, Khartoum, Sudan; Dept. Ear...

Ureilite Graphite: Shocking Implications

Radioisotopes in Medicine

Nuclear medicine uses radiation to provide diagnostic information about the functioning of a person's specific organs, or to treat them. Diagnostic procedures are now routine.. Radiotherapy can be used to treat some medical conditions, especially cancer, using radiation to weaken or destroy particular targeted cells. Millions of nuclear medicine procedures are performed each year, and demand fo...