ISSN:
1476-4687
Quelle:
Nature Archives 1869 - 2009
Thema:
Biologie
,
Chemie und Pharmazie
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
Notizen:
[Auszug] Suppose that an accretion disk around a compact object of mass M reaches high enough temperatures (~ 10 MeV) that infalling nuclei (particularly helium, because of its high abundance) are dissociated into protons and neutrons. (Evidence has appeared in y-ray lines that free neutrons are indeed ...
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1038/330236a0