2000A&A...361.1073A

Query : 2000A&A...361.1073A

2000A&A...361.1073A - Astronomy and Astrophysics, volume 3611073-1078 (2000/9-3)

Optimizing the angular resolution of the HEGRA telescope system to study the emission region of VHE gamma rays in the Crab Nebula.

AHARONIAN F.A., AKHPERJANIAN A.G., BARRIO J.A., BERNLOEHR K., BOJAHR H., BOLZ O., BOERST H., CONTRERAS J.L., CORTINA J., DENNINGHOFF S., FONSECA V., GONZALEZ J.C., GOETTING N., HEINZELMANN G., HERMANN G., HEUSLER A., HOFMANN W., HORNS D., IBARRA A., ISERLOHE C., JUNG I., KANKANYAN R., KESTEL M., KETTLER J., KOHNLE A., KONOPELKO A., KORNMEYER H., KRANICH D., KRAWCZYNSKI H., LAMPEITL H., LORENZ E., LUCARELLI F., MAGNUSSEN N., MANG O., MEYER H., MIRZOYAN R., MORALEJO A., PADILLA L., PANTER M., PLAGA R., PLYASHESHNIKOV A., PRAHL J., PUEHLHOFER G., RHODE W., ROEHRING A., ROWELL G., SAHAKIAN V., SAMORSKI M., SCHILLING M., SCHROEDER F., SIEMS M., STAMM W., TLUCZYKONT M., VOELK H.J., WIEDNER C. and WITTEK W.

Abstract (from CDS):

The HEGRA system of imaging atmospheric Cherenkov telescopes provides for specially selected classes of events an angular resolution of better than 3'. By comparing the measured angular distribution of TeV gamma rays from the Crab Nebula with the distribution expected on the basis of Monte Carlo simulations, and with measurements of gamma rays from the point source Mrk 501, we conclude that the rms size of the VHE gamma-ray emission region in the Crab Nebula is less than 1.5'.

Abstract Copyright: ∼

Journal keyword(s): gamma rays: observations - ISM: individual objects: Crab Nebula - ISM: supernova remnants

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
2 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
3 Z 225-7 BLL 16 53 52.21668403 +39 45 36.6088754 14.09 14.15 13.29 8.26   ~ 2304 2

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