Talk:Gamma-ray astronomy

Latest comment: 4 years ago by Rod57 in topic Gamma-ray sensor technology

Bulletin

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Someone willing to update this article or the one for gamma rays may find this bulletin interesting: http://www.eurekalert.org/pub_releases/2005-12/nyu-pfe120905.php

Brian Pearson

Only 3.5 TeV. Not very high by today's standards. Zyxwv99 (talk) 02:05, 21 August 2014 (UTC)Reply

The hyphen: gamma-ray vs gamma ray

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Note that it is standard to hyphenate the adjective, but not the noun. Thus, "gamma-ray astronomy", but "high-energy gamma rays". (Similarly for X rays and cosmic rays, of course.) Wwheaton (talk) 08:32, 16 June 2008 (UTC)Reply

Gamma-ray sensor technology

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Could do with a brief summary or links to sensor technology/design. Rod57 (talk) 00:38, 10 September 2008 (UTC)Reply

and capability ? eg. energy/frequency discrimination, maximum photon counting rate ? - Rod57 (talk) 09:50, 14 August 2020 (UTC)Reply

Incredible Distances

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I took away the part of the introduction which was speaking about "incredible distances" since actually the gamma rays, due to the interaction with the Extra-Galactic Background Light are probably the kind of radiations that travels the shortest distance in the Universe and has therefore the shortest horizon.

161.72.125.11 —Preceding unsigned comment added by 161.72.125.11 (talk) 06:20, 7 December 2010 (UTC)Reply

Gamma ray uses that terminology and so does [NASA] "can observe them from distances of billions of light-years"... I think that is an "incredible distance" and [Here] "The incredible distance to this burst exceeded our greatest expectations". - Pmedema (talk) 07:41, 7 December 2010 (UTC)Reply
How far gamma rays can travels depends largely on how energetic they are.
 
calculated mean free path of VHE, UHE, EHE, and THE gamma rays based on attenuation due to pair-production with EBL (extragalactic background light) and CMB (cosmic microwave background radiation) expressed in log10 megaparsecs (Mpc)
Zyxwv99 (talk) 15:12, 17 August 2014 (UTC)Reply

"Incredible" sounds like hype, and not encyclopedic. Literally it means unbelievable. - Rod57 (talk) 14:10, 31 July 2020 (UTC)Reply

Intensity interferometry

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Could mention use of intensity interferometry with gamma-ray telescopes : Gamma-ray Scientists "Dust Off" Intensity Interferometry, Upgrade Technology with Digital Electronics, Larger Telescopes, and Improved Sensitivity ? - Rod57 (talk) 14:05, 31 July 2020 (UTC)Reply