SIMBAD references

2004ApJ...607..778S - Astrophys. J., 607, 778-787 (2004/June-1)

High-energy gamma-ray observations of W Comae with the Solar Tower Atmospheric Cerenkov Effect Experiment (STACEE).

SCALZO R.A., BOONE L.M., BRAMEL D., CARSON J., COVAULT C.E., FORTIN P., GAUTHIER G., GINGRICH D.M., HANNA D., JARVIS A., KILDEA J., LINDNER T., MUELLER C., MUKHERJEE R., ONG R.A., RAGAN K.J., WILLIAMS D.A., ZWEERINK J. (The STACEE Collaboration)

Abstract (from CDS):

We report on observations of the blazar W Com (ON+231) with the Solar Tower Atmospheric Cerenkov Effect Experiment (STACEE), a wave front-sampling atmospheric Cerenkov telescope, in the spring of 2003. In a data set comprising 10.5 hr of on-source observing time, we detect no significant emission from W Com. We discuss the implications of our results in the context of the composition of the relativistic jet in W Com, examining both leptonic and hadronic models for the jet. We derive 95% confidence level upper limits on the flux at the level of (1.5-3.5)x10^–10/cm2/s above 100 GeV for the leptonic models, or (0.5-1.1)x10^–10/cm2/s above 150 GeV for the hadronic models.

Abstract Copyright: ∼

Journal keyword(s): BL Lacertae objects: individual (W Com) - Galaxies: Active - Gamma Rays: Observations

Simbad objects: 8

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