ELFT HÍRADÓ

[Uhlár Karola <uhlar AT konkoly.hu>]

*INTÉZETI SZEMINÁRIUM*

Előadó: *A. J. Timothy Jull* (NSF Arizona AMS Laboratory)

Előadás címe: *Radiocarbon and other radionuclides in meteorites and 
lunar samples *

Kivonat:
Material in space, whether in a meteoroid, asteroid or planetary object, 
is irradiated by solar and galactic cosmic radiation. Meteorites and 
lunar samples preserve a history of this irradiation. Depending on the 
half-life of the nuclide, the activity can be used to estimate the 
exposure age of meteorites in space or also their terrestrial residence 
age from the decay of radionuclides from the original activity. The 
terrestrial age can potentially give us information about infall rates 
of material in the past. On the surface of the Moon, solar cosmic rays 
produce radionuclides in the top few centimeters of rocks and this 
signal can be used to infer past solar activity, from the production 
rates of different nuclides.

Előadás időpontja: *2013. március 14. (csütörtök), 14:00**
*
Előadás helyszíne: MTA CSFK CSI Előadóterme
1121 Budapest, Konkoly T. M. út 15-17.
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fn:Karola Uhlar
n:Uhlar;Karola
org:Konkoly Observatory
adr:;;Konkoly Thege M. u. 13-17.;Budapest;;1121;Hungary
email;internet:uhlar AT konkoly.hu
title:secretary
tel;work:+3613919322
tel;fax:+3612754668
version:2.1
end:vcard