Czesc,
Is this something new ? The peper is like from one year ago.
Kn"odlseder et al. (2005) seems to be the main "discovery" article of the INTEGRAL/SPI results.
It has some very nice pictures - especially Figs 4, 5 and 7 - here i've put the closed links, but the figures are in the astro-ph versions too, of course:
Fig 4 http://www.edpsciences.org/articles/aa/full/2005/38/aa2063-04/img62.gif
Fig 5 http://www.edpsciences.org/articles/aa/full/2005/38/aa2063-04/img63.gif
Fig 7 http://www.edpsciences.org/articles/aa/full/2005/38/aa2063-04/img108.gif
We may soon be able to say that Fig.~4 was the "first picture of invisible matter" ;).
well, it's a picture of what's left of it: electrons, positrons ... and protons, neutrinos, etc.
I didn't have time to read this carefully, but what are the principles of the measurment giving hint on variation of fine structure constant ?
Ascasibar et al 2005 has some very interesting conclusions - apart from the continued validity of LDM as only (so far) viable explanation, they say:
One consequence is that the value of the fine structure constant \alpha should differ from that recommended in the CODATA (Committee on Data for Science and Technology). This is a very strong test for the LDM scenario and an additional motivation in favour of experiments measuring \alpha directly. Our results finally indicate that an accurate measurement of the shape of the dark halo profile could have a tremendous impact on the determination of the origin of the 511-keV line and vice versa.
Both of these are very good for showing that evidence should build up either for or against the LDM hypothesis. :)
pozdr boud
Kn"odlseder et al. (2005) http://arXiv.org/abs/astro-ph/0506026 http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?bibcode=2005A%26A...441..51...
Ascasibar, Y et al. (2005) http://arXiv.org/abs/astro-ph/0507142 http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?bibcode=2006MNRAS.368.1695A...