| SMITH, David A., Elisabeth BRION a Filip MÜNZ. Mrk 421, Mrk 501, and 1ES 1426+428 at 100 GeV with the CELESTE Cherenkov Telescope. Astronomy and Astrophysics. Les Ulis Cedex, France: EDP Sciences, 2006, roč. 459, č. 2, s. 453-464. ISSN 0004-6361. |
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@article{877199,
author = {Smith, David A. and Brion, Elisabeth and Münz, Filip},
article_location = {Les Ulis Cedex, France},
article_number = {2},
keywords = {cosmic rays;atmospheric cerenkov technique; active galaxies;},
language = {eng},
issn = {0004-6361},
journal = {Astronomy and Astrophysics},
title = {Mrk 421, Mrk 501, and 1ES 1426+428 at 100 GeV with the CELESTE Cherenkov Telescope},
url = {http://arxiv.org/abs/astro-ph/0608247},
volume = {459},
year = {2006}
}
TY - JOUR
ID - 877199
AU - Smith, David A. - Brion, Elisabeth - Münz, Filip
PY - 2006
TI - Mrk 421, Mrk 501, and 1ES 1426+428 at 100 GeV with the CELESTE Cherenkov Telescope
JF - Astronomy and Astrophysics
VL - 459
IS - 2
SP - 453-464
EP - 453-464
PB - EDP Sciences
SN - 00046361
KW - cosmic rays;atmospheric cerenkov technique
KW - active galaxies;
UR - http://arxiv.org/abs/astro-ph/0608247
N2 - We have measured the gamma-ray fluxes of the blazars Mrk 421 and Mrk 501 in the energy range between 50 and 350 GeV (1.2 to 8.3 x 10^25 Hz). The detector, called CELESTE, used first 40, then 53 heliostats of the former solar facility "Themis" in the French Pyrenees to collect Cherenkov light generated in atmospheric particle cascades. The signal from Mrk 421 is often strong. We compare its flux with previously published multi-wavelength studies and infer that we are straddling the high energy peak of the spectral energy distribution. The signal from Mrk 501 in 2000 was weak (3.4 sigma). We obtain an upper limit on the flux from 1ES 1426+428 of less than half that of the Crab flux near 100 GeV. The data analysis and understanding of systematic biases have improved compared to previous work, increasing the detector's sensitivity.
ER -
SMITH, David A., Elisabeth BRION a Filip MÜNZ. Mrk 421, Mrk 501, and 1ES 1426+428 at 100 GeV with the CELESTE Cherenkov Telescope. \textit{Astronomy and Astrophysics}. Les Ulis Cedex, France: EDP Sciences, 2006, roč.~459, č.~2, s.~453-464. ISSN~0004-6361.
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