Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measuring 26Al and 60Fe in the Galaxy   With the SPI high-resolution spectrometer on INTEGRAL, new results have been
obtained for long-lived radioactive 26Al and 60Fe in our Galaxy: 26Al sources
apparently share the pattern of Galactic rotation in the inner Galaxy, and thus
allow to estimate a total mass of 26Al in the Galaxy of 2.8 M_sol from the
measured flux. 60Fe production in massive stars is constrained by recent
gamma-ray detections, and appears to be lower than predicted by standard
models. We show the broader implications of these findings both for the study
of our Galaxy, and for nucleosynthesis in massive stars.

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The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg