Observations of T[CLC]e[/CLC]V Gamma-Ray Flares from Markarian 501with the Telescope Array Prototype
Author(s) -
N. Hayashida,
Hideaki Hirasawa,
Fumihiro Ishikawa,
H. Lafoux,
M. Nagano,
D. Nishikawa,
T. Ouchi,
H. Ohoka,
M. Ohnishi,
Н. Сакаки,
M. Sasaki,
Hidetoshi Shimodaira,
M. Teshima,
R. Torii,
T. Yamamoto,
S. Yoshida,
T. Yuda,
Y. Hayashi,
N. Ito,
S. Kawakami,
Y. Kawasaki,
T. Matsuyama,
M. Sasano,
T. Takahashi,
N. Chamoto,
F. Kajino,
M. Sakata,
T. Sugiyama,
M. Tsukiji,
Y. Yamamoto,
N. Inoue,
Eiji Kusano,
K. Mizutani,
A. Shiomi,
K. Hibino,
T. Kashiwagi,
J. Nishimura,
E. C. Loh,
P. Sokolsky,
Stuart F. Taylor,
K. Honda,
N. Kawasumi,
I. Tsushima,
Y. Uchihori,
Hisashi Kitamura,
M. Chikawa,
S. Kabe,
Y. Mizumoto,
H. Yoshii,
N. Hotta,
To. Saito,
M. Nishizawa,
H. Kuramochi,
Karina Sakumoto
Publication year - 1998
Publication title -
the astrophysical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.376
H-Index - 489
eISSN - 1538-4357
pISSN - 0004-637X
DOI - 10.1086/311574
Subject(s) - physics , astrophysics , telescope , flare , astronomy , oscillation (cell signaling) , gamma ray , variation (astronomy) , intensity (physics) , optics , biology , genetics
We will report the observations of TeV gamma ray flares from Markarian 501using Telescope Array Prototype. The observation were carried out continuouslyfrom the end of March to the end of July in 1997. The energy spectrum, and thetime variation of the gamma ray intensities are shown. The intensity has beenchanged by the order of magnitude in this period and the possible quasiperiodic oscillation of 12.7days were discovered.Comment: 16 pages, 4 figure
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