>> In gamma ray, the situation is similar. You can take a look the
>> INTEGRAL instruments, or CGRO ones.
>> The problem is that each energy range use techniques completely
>> different (due to the physics of the process) and em.gamma.hard is to
>> wide! It includes from only space instruments to only ground based
>> instruments (using the atmosphere as detector). In fact some gamma-
>> ray people make distinction between gamma-ray VeryHigh gamma-rays and
>> Ultra-High gamma rays as clearly different parts of the
>> electromagnetic spectrum....
>
> I agree that gamma.hard is rather wide!! Probably we should go for
> at least three bands:
> hard/high
> VeryHigh
> UltraHigh
But the problem remains that "hard" and "very" and "ultra" are
undefined.
If the band is so wide, then use more than 3 bands, just like the
present
use in the radio (which is also wide).
Rick
Dr. Frederic V. Hessman Hessman-at-Astro.physik.Uni-Goettingen.DE Universitaets-Sternwarte Tel. +49-551-39-5052 Geismarlandstr. 11 Fax +49-551-39-5043 37083 Goettingen http://www.uni-sw.gwdg.de/~hessman ------------------------------------------------------------------------ -------------------------
http://monet.uni-goettingen.de ------------------------------------------------------------------------ -------------------------Received on 2005-06-13Z15:20:10