SIMBAD references

1999A&A...343..691R - Astronomy and Astrophysics, volume 343, 691-696 (1999/3-3)

TeV gamma-ray observations of three X-ray selected BL Lacs.

ROBERTS M.D., McGEE P., DAZELEY S.A., EDWARDS P.G., HARA T., HOLDER J., KAWACHI A., KIFUNE T., MATSUBARA Y., MIZUMOTO Y., MORI M., MURAISHI H., MURAKI Y., NAITO T., NISHIJIMA K., OGIO S., OSAKI T., PATTERSON J.R., ROWELL G.P., SAKO T., SAKURAZAWA K., SUSUKITA R., TAMURA T., TANIMORI T., THORNTON G.J., YANAGITA S., YOSHIDA T. and YOSHIKOSHI T.

Abstract (from CDS):

Despite extensive surveys of extragalactic TeV gamma-ray candidates only 3 sources have so far been detected. All three are northern hemisphere objects and all three are low-redshift X-ray selected BL Lacs (XBLs). In this paper we present the results of observations of the three nearest southern hemisphere XBLs (PKS 0548-322, PKS 2005-489 and PKS 2155-304) with the CANGAROO 3.8m imaging telescope. During the period of observation we estimate that the threshold of the 3.8m telescope was ∼1.5TeV. Searches for both steady and short timescale emission have been performed for each source. Additionally, we are able to monitor the X-ray state of each source on a daily basis and we have made contemporaneous measurements of optical activity for PKS 0548-322 and PKS 2155-304.

Abstract Copyright: ∼

Journal keyword(s): gamma rays: observations - galaxies: BL Lacertae objects: individual: PKS 0548-322, PKS 2005-489, PKS 2155-304

Simbad objects: 6

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