SIMBAD references

1998A&A...337...25R - Astronomy and Astrophysics, volume 33725-30 (1998/9-1)

TeV gamma-ray observations of southern BL Lacs with the CANGAROO 3.8m Imaging Telescope.

ROBERTS M.D., DAZELEY S.A., EDWARDS P.G., HARA T., HAYAMI Y., HOLDER J., KAKIMOTO F., KAMEI S., KAWACHI A., KIFUNE T., KITA R., KONISHI T., MASAIKE A., MATSUBARA Y., MATSUOKA T., MIZUMOTO Y., MORI M., MURAISHI H., MURAKI Y., NISHIJIMA K., ODA S., OGIO S., PATTERSON J.R., ROWELL G.P., SAKO T., SAKURAZAWA K., SUSUKITA R., SUZUKI A., SUZUKI R., TAMURA T., TANIMORI T., THORNTON G.J., YANAGITA S., YOSHIDA T. and YOSHIKOSHI T.

Abstract (from CDS):

Observational and theoretical results indicate that low-redshift BL Lacertae objects are the most likely extragalactic sources to be detectable at TeV energies. In this paper we present the results of observations of 4 BL Lacertae objects (PKS 0521-365, EXO 0423.4-0840, PKS 2005-489 and PKS 2316-423) made between 1993 and 1996 with the CANGAROO 3.8m imaging Cerenkov telescope. During the period of these observations the gamma-ray energy threshold of the 3.8mtelescope was ∼2TeV. Searches for steady long-term emission have been made, and, inspired by the TeV flares detected from Mkn 421 and Mkn 501, a search on a night-by-night timescale has also been performed for each source. Comprehensive Monte Carlo simulations are used to estimate upper limits for both steady and short timescale emission.

Abstract Copyright: ∼

Journal keyword(s): gamma-rays: observations - BL Lacertae objects: individual: PKS 0521-365, EXO 0423.4-0840, PKS 2005-489, PKS 2316-423

Simbad objects: 13

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