2001A&A...375..691S


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.13CEST22:29:28

2001A&A...375..691S - Astronomy and Astrophysics, volume 375, 691-700 (2001/8-4)

Diffractive/refractive optics for high energy astronomy. I. Gamma-ray phase Fresnel lenses.

SKINNER G.K.

Abstract (from CDS):

Diffractive optics components such as Fresnel Zone Plates and their derivatives potentially form the basis for telescope systems for X-ray and gamma-ray astronomy with high sensitivity and superb angular resolution. The main problem is that systems with convenient design parameters involve very long focal lengths. The design considerations and performance of telescopes using a simple Phase Fresnel Lens on one spacecraft and a detector assembly on another are considered. Such systems are shown to have the potential to provide orders of magnitude improvement on currently available sensitivity. At the same time the angular resolution can be at the micro arcsecond level or better - sufficient to resolve the structure surrounding the event horizon of black holes in nearby galaxies.

Abstract Copyright:

Journal keyword(s): telescopes - methods: observational - techniques: interferometric - gamma-rays: observations - X-rays: general

Simbad objects: 11

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Number of rows : 11

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 M 32 IG 00 42 41.825 +40 51 54.61 9.51 9.03 8.08     ~ 2010 2
2 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 10905 1
3 ESO 113-45 Sy1 01 23 45.7630391439 -58 48 20.811630442   14.08 13.83 13.34   ~ 771 0
4 QSO J0530+13 QSO 05 30 56.41672 +13 31 55.1495     20.0 19.35   ~ 879 1
5 M 81 Sy2 09 55 33.17306143 +69 03 55.0609270   7.89 6.94     ~ 3965 5
6 3C 273 BLL 12 29 06.6996828061 +02 03 08.598846466   13.05 14.830 14.11   ~ 5320 1
7 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6213 3
8 M 60 GiP 12 43 40.008 +11 33 09.40   10.3       ~ 1251 0
9 NAME Centaurus A Sy2 13 25 27.61509104 -43 01 08.8056025   8.18 6.84 6.66   ~ 3999 3
10 Mrk 477 Sy2 14 40 38.098 +53 30 16.24   16.05 15.03     ~ 282 1
11 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 3452 3

    Equat.    Gal    SGal    Ecl

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2020.07.13-22:29:28

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