32 research outputs found

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

    Get PDF
    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 (PKS0521−365, EXO0423.4−0840, PKS2005−489 and PKS2316−423) made between 1993 and 1996 with the CANGAROO 3.8m imaging Cˇ erenkov telescope. During the period of these observations the gamma-ray energy threshold of the 3.8m telescope was ∼2 TeV. 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.M.D. Roberts, S.A. Dazeley, P.G. Edwards, T. Hara, Y. Hayami ... Gavin P. Rowell ... et al

    “Toll-free” pathways for production of type I interferons

    No full text

    Investigation into the fungal diversity within different regions of the gastrointestinal tract of <em>Panaque nigrolineatus</em>, a wood-eating fish

    No full text

    3D bioprinting of the kidney—hype or hope?

    No full text
    corecore