Gamma-ray properties of globular clusters and the "fundamental planes"

Details Gamma-ray properties of globular clusters and the "fundamental planes" Gamma-ray properties of globular clusters and the "fundamental planes"

2011-11-04

arxiv.org/abs/1111.1045v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

4 pages, 5 figures, 2011 Fermi Symposium proceedings - eConf C110509

Scientific paper

We report on the discovery of gamma-ray emission from several globular clusters (GCs), including Terzan 5, the second known gamma-ray GCs. By now, more than a dozen GCs are known to emit gamma-rays of energies above 100 MeV, thus enabling us to carry out the first detailed correlation study with several cluster properties. We found strong correlations between the observed gamma-ray luminosities and four cluster parameters: stellar encounter rate, metallicity [Fe/H], and energy densities of the soft photons at the cluster locations. These "fundamental planes" of gamma-ray GCs put an intimate relation of the observed gamma-rays to the underlying millisecond pulsar population and have important implications on the origin of the gamma-ray emission of GCs.

Affiliated with

Also associated with

No associations

Rating

Gamma-ray properties of globular clusters and the "fundamental planes" 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 Gamma-ray properties of globular clusters and the "fundamental planes", we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gamma-ray properties of globular clusters and the "fundamental planes" will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-100553