VHE gamma-rays from radio pulsars and cataclysmic variables

Details VHE gamma-rays from radio pulsars and cataclysmic variables VHE gamma-rays from radio pulsars and cataclysmic variables

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990nuphs..14..169d&link_type=abstract

Nuclear Physics B Proceedings Supplements, Volume 14, Issue 1, p. 169-175.

Physics

Nuclear Physics

5

Scientific paper

We present the results of observations (above 1 TeV) of radio pulsars and cataclysmic variables with the Potchefstroom air Cerenkov facility. We were able to confirm our previous detection of PSR 1509-58 and the final significance is 1.7×10-5. A DC enhancement at the 10-3 significance level was seen from the L4 Lagrange position in the PSR 1957+20 system. This result was confirmed by COS-B data. We were also able to detect the 5.4 ms pulsar PSR 1855+09 at a marginal significance level of 5%. However, the best and longest observation indicates non-uniformity at the 0.005 significance level. The TeV light curve resembles the radio light curve. The latter is also reminiscent of other millisecond pulsars observed above 1 TeV. The intermediate polar AEAQR (P = 33.08s) shows a period shift which is consistent with recent model predictions. However, the present significance of this results does not allow an unambiguous claim.

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