The angular resolution and the brightness contrast of sources for ground-based gamma-ray Cherenkov telescopes

被引：1

作者：

Fomin, VP

Heusler, A

Plyasheshnikov, AV

Wiedner, CA

Wirth, H

机构：

[1] MAX PLANCK INST KERNPHYS,D-69029 HEIDELBERG,GERMANY

[2] ALTAI STATE UNIV,BARNAUL 656090,RUSSIA

来源：

ASTROPARTICLE PHYSICS | 1995年 / 4卷 / 02期

关键词：

D O I：

10.1016/0927-6505(95)00027-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The results of numerical calculations on the angular resolution in the field of view of Air Cherenkov Imaging Telescopes are presented, It is found that the angular resolution and the contrast depend on the pixel size of the camera. The optimal pixel size is 0.25 degrees. In this case an angular resolution of about 0.4 degrees (FWHM) and a contrast with a value of close to 60 could be obtained, For selecting gamma-like events the ''Sum Selection'' (SS) criterion was used. The evaluation of the gamma-flux characteristics, in particular from extended sources, neccessitates the use of cameras with fields of view of more than 4 degrees.

引用

页码：113 / 118

页数：6

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