losing photons

Galactic nuclei don't glow as brightly as expected.
Is the strong magnetism there converting photons
into something harder to detect? [That is a
rhetorical question, meant to indicate the gist of
the cited science journalism article.]

Galactic nuclei offer some indication of
axionlike particles

May 28th, 2009 By Miranda Marquit

"Axionlike particles are interesting because
they come up regularly when scientists study
string theory. By looking at their properties,
you hope to learn about string theory, or some
other unified theory of physics. From a
cosmological point of view, axionlike particles
are of interest because they could be connected
to dark energy," Clare Burrage tells
PhysOrg.com. The main hiccup in this study of
axionlike particles, however, is the fact that
their existence - much like their cousins,
axions - has yet to be proven.

[...]

http://www.physorg.com/news162719375.html

xanthian.