Skip to main content
SpringerLink
Log in

Using the trial source method for the analysis of the influence of apparatus errors on data obtained by the VHE imaging cerenkov detectors

  • Published:
Experimental Astronomy Aims and scope Submit manuscript

Abstract

The results of application of the trial source method for the analysis of data obtained using a VHE gamma-ray telescope with an imaging camera are presented. This method was proposed by the Whipple Collaboration in 1991. The usage of this method gives us the possibility of the more accurate determination of the direction to the source. In consequence, more accurate definition of the source direction helps us to make more confident identification of the VHE gamma-ray source and to find more accurate value of the gamma-ray flux.

The three-dimensional histograms show that the position of an off-axis source is shifted towards the camera edge and the height of the peak (i.e.the efficiency of the detection) decreases in this case.

The calculated histograms obtained for the case of a bright star in the camera field of view show that a spurious source appears in the direction of the star. The trial source method gives us the possibility of distinguishing the real gamma-ray source from a spurious one.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Akerlof,C.W., et al.: 1991, Ap.J. 377, L97.

  • Cawley, M.F., et al.: 1983, Proc, 18th ICRC, Bangalore, India, 1, 118.

    Google Scholar 

  • Fomin, V.P., et al.: 1983, Proc. 18th ICRC, Bangalore, India, 6, 223.

    Google Scholar 

  • Fomin, V.P., et al.: 1991, Proc. 22th ICRC, Dublin, Ireland, 1, 468.

    Google Scholar 

  • Hillas,A.M,,: Proc. 19th ICRC, La Jolla, USA, 3, 445.

  • Kornienko, A.P., et al.,: 1993a, Experimental Astronomy, 4, 77.

    Google Scholar 

  • Kornienko, A.P., et al.,: 1993b, Astroparticle Physics, 1, 245.

    Google Scholar 

  • KornienkO, A.P., et al.,: 1993c, Experimental Astronomy, 4, 147.

    Google Scholar 

  • Stepanian, A.A., et al.,: 1983, Izv. Krimskoi Astrofiz. Obs., 66, 234.

    Google Scholar 

  • Stepanian, A.A., et al.,: 1993, J.Phys.G., 19, 1967.

  • Zyskin, Yu. L., et al.,: 1987, Proc. 20th ICRC, Moscow, USSR, 2, 342.

    Google Scholar 

  • Zyskin,Yu.L.,: 1989, Proc.Intern Workshop VHE Gamma-Ray Astronomy, Crimea, USSR, 148.

Download references

Author information

Authors and Affiliations

  1. Crimean Astrophysical Observatory, p/o Nauchny, 334413, Crimea, Ukraine

    Yu. I. Neshpor, A. P. Kornienko, A. A. Stepanian & Yu. L. Zyskin

Authors
  1. Yu. I. Neshpor
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. P. Kornienko
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. A. A. Stepanian
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Yu. L. Zyskin
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Neshpor, Y.I., Kornienko, A.P., Stepanian, A.A. et al. Using the trial source method for the analysis of the influence of apparatus errors on data obtained by the VHE imaging cerenkov detectors. Exp Astron 5, 405–418 (1994). https://doi.org/10.1007/BF01583710

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01583710

Keywords

Search

Navigation