High-Energy Gamma-Ray Observations of W Comae with STACEE
Abstract
We report on observations of the blazar W Comae (ON+231) with the Solar Tower Atmospheric Cherenkov Effect Experiment (STACEE), a wavefront-sampling atmospheric Cherenkov telescope, in the spring of 2003. In a data set comprising 10.5 hours of ON-source observing time, we detect no significant emission from W Comae. We discuss the implications of our results in the context of the composition of the relativistic jet in W Comae, 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 x 10^{-10} cm^{-2} s^{-1} above 100 GeV for the leptonic models, or 0.5--1.1 x 10^{-10} cm^{-2} s^{-1} above 150 GeV for the hadronic models.
Cite
@article{arxiv.astro-ph/0403114,
title = {High-Energy Gamma-Ray Observations of W Comae with STACEE},
author = {STACEE Collaboration and R. A. Scalzo and L. M. Boone and D. Bramel and J. Carson and C. E. Covault and P. Fortin and G. Gauthier and D. M. Gingrich and D. S. Hanna and A. Jarvis and J. Kildea and T. Lindner and C. Mueller and R. Mukherjee and R. A. Ong and K. J. Ragan and D. A. Williams and J. A. Zweerink},
journal= {arXiv preprint arXiv:astro-ph/0403114},
year = {2008}
}
Comments
9 pages, 7 figures, uses emulateapj.sty. Accepted to ApJ