The extragalactic background light: lower vs upper limits

Details The extragalactic background light: lower vs upper limits The extragalactic background light: lower vs upper limits

2009-04-20

arxiv.org/abs/0904.2892v1

Int.J.Mod.Phys.D18:1633-1637,2009

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

4 pages, 2 figures, 1 table. Contribution to the proceedings of the 2nd Heidelberg Workshop: "High-Energy Gamma-rays and Neutr

Scientific paper

10.1142/S0218271809015588

The discovery of distant sources of very high energy (VHE) gamma-rays with hard energy spectra enabled to derive strong upper limits on the density of the extragalactic background light (EBL). These limits are close to the lower limits derived from deep source counts. A recent re-determination of the EBL contribution from resolved sources at 3.6 micrometer finds a higher EBL density, which is claimed to be in conflict with the assumptions utilized to derive the EBL upper limits from VHE spectra. Here, it is shown that is possible to recover the canonical Gamma~1.5 intrinsic spectra for such a higher EBL density.

Affiliated with

Also associated with

No associations

Rating

The extragalactic background light: lower vs upper limits 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 The extragalactic background light: lower vs upper limits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The extragalactic background light: lower vs upper limits will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-173540