Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-11-08
JETP, Vol. 108, Issue 3, pp.384-388, 2009
Astronomy and Astrophysics
Astrophysics
14 pages, 4 figures; changes in content, references added, accepted for publication in JETP (Nov 2008)
Scientific paper
We propose a new method to detect observational appearance of Dark Matter axions. The method utilizes observations of neutron stars (NSs) in radio. It is based on the conversion of axions to photons in strong magnetic fields of NSs (Primakoff effect). Whether the conversion takes place, the radio spectrum of the object would have a very distinctive feature -- a narrow spike at a frequency corresponding to the rest mass of the axion. For example, if the coupling constant of the photon-axion interaction is $M=10^{10}$ GeV, the density of Dark Matter axions is $\rho=10^{-24} {\rm g cm^{-3}}$, and the axion mass is $5 {\rm \mu eV}$, then a flux from a strongly magnetized ($10^{14}$ G) NS at the distance 300 pc from the Sun is expected to be about few tenths of mJy at the frequency $\approx 1200$ MHz in the bandwidth $\approx 3$ MHz. Close-by X-ray dim isolated neutron stars are proposed as good candidates to look for such radio emission.
Popov Sergei B.
Pshirkov Maxim S.
No associations
LandOfFree
Conversion of Dark matter axions to photons in magnetospheres of neutron stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Conversion of Dark matter axions to photons in magnetospheres of neutron stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Conversion of Dark matter axions to photons in magnetospheres of neutron stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-377614