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Research Output 1995 2019

2001
54 Citations (Scopus)

Variability timescales of TeV blazars observed in the ASCA continuous long-look X-ray monitoring

Tanihata, C., Urry, C. M., Takahashi, T., Kataoka, J., Wagner, S. J., Madejski, G. M., Tashiro, M. & Kouda, M., 2001 Dec 20, In : Astrophysical Journal. 563, 2 PART 1, p. 569-581 13 p.

Research output: Contribution to journalArticle

blazars
flares
timescale
monitoring
x rays
2000

A study of high energy emission from the TeV blazar Mrk 501 during multiwavelength observations in 1996

Kataoka, J., Mattox, J. R., Quinn, J., Kubo, H., Makino, F., Takahashi, T., Inoue, S., Hartman, R. C., Madejski, G. M., Sreekumar, P. & Wagner, S. J., 2000, In : Advances in Space Research. 25, 3-4, p. 737-740 4 p.

Research output: Contribution to journalArticle

Optical telescopes
Fluxes
Galaxies
energy
Seed
91 Citations (Scopus)

Complex spectral variability from intensive multiwavelength monitoring of markarian 421 in 1998

Takahashi, T., Kataoka, J., Madejski, G., Mattox, J., Urry, C. M., Wagner, S., Aharonian, F., Catanese, M., Chiappetti, L., Coppi, P., Degrange, B., Fossati, G., Kubo, H., Krawczynski, H., Makino, F., Marshall, H., Maraschi, L., Piron, F., Remillard, R., Takahara, F. & 3 others, Tashiro, M., Terasranta, H. & Weekes, T., 2000 Oct 20, In : Astrophysical Journal. 542, 2 PART 2

Research output: Contribution to journalArticle

monitoring
flares
light curve
x rays
time lag
25 Citations (Scopus)

Rapid synchrotron flares from BL Lacertae detected by ASCA and RXTE

Tanihata, C., Takahashi, T., Kataoka, J., Madejski, G. M., Inoue, S., Kubo, H., Makino, F., Mattox, J. R. & Kawai, N., 2000 Nov 1, In : Astrophysical Journal. 543, 1 PART 1, p. 124-130 7 p.

Research output: Contribution to journalArticle

X Ray Timing Explorer
flares
synchrotrons
x rays
timescale
106 Citations (Scopus)

Variability pattern and the spectral evolution of the BL lacertae object PKS 2155-304

Kataoka, J., Takahashi, T., Makino, F., Inoue, S., Madejski, G. M., Tashiro, M., Urry, C. M. & Kubo, H., 2000 Jan 1, In : Astrophysical Journal. 528, 1 PART 1, p. 243-253 11 p.

Research output: Contribution to journalArticle

BL Lacertae objects
flares
x rays
light curve
synchrotrons
1999
25 Citations (Scopus)

Activation of the ASTRO-E hard X-ray detector in low earth orbit

Kokubun, M., Fukazawa, Y., Idesawa, E., Kataoka, J., Kamae, T., Matsuzaki, K., Mizuno, T., Saito, Y., Takahashi, T., Takizawa, K., Tashiro, M., Tamura, T. & Yoshida, A., 1999, In : IEEE Transactions on Nuclear Science. 46, 3 PART 1, p. 371-376 6 p.

Research output: Contribution to journalArticle

low Earth orbits
Orbits
Earth (planet)
Chemical activation
activation
1 Citation (Scopus)

Activation of the ASTRO-E hard X-ray detector in low Earth orbit

Kokubun, M., Fukazawa, Y., Idesawa, E., Kataoka, J., Kamae, T., Matsuzaki, K., Mizuno, T., Saito, Y., Takahashi, T., Takizawa, K., Tashiro, M., Tamura, T. & Yoshida, A., 1999, IEEE Nuclear Science Symposium and Medical Imaging Conference. Piscataway, NJ, United States: IEEE, Vol. 1. p. 227-232 6 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Orbits
Earth (planet)
Chemical activation
Detectors
X rays
124 Citations (Scopus)

High-energy emission from the TeV blazar markarian 501 during multiwavelength observations in 1996

Kataoka, J., Mattox, J. R., Quinn, J., Kubo, H., Makino, F., Takahashi, T., Inoue, S., Hartman, R. C., Madejski, G. M., Sreekumar, P. & Wagner, S. J., 1999 Mar 20, In : Astrophysical Journal. 514, 1 PART 1, p. 138-147 10 p.

Research output: Contribution to journalArticle

rays
synchrotrons
energy
photons
flares
13 Citations (Scopus)

Multiwavelength observations of the TeV blazar Mrk 501 in March 1996. The first report of the detection by EGRET

Kataoka, J., Mattox, J. R., Quinn, J., Kubo, H., Makino, F., Takahashi, T., Inoue, S., Hartman, R. C., Madejski, G. M., Sreekumar, P. & Wagner, S. J., 1999 Jun, In : Astroparticle Physics. 11, 1-2, p. 149-151 3 p.

Research output: Contribution to journalArticle

seeds
rays
telescopes
galaxies
photons
20 Citations (Scopus)

Preflight performance of the Astro-E hard X-ray detector

Tanihata, C., Kataoka, J., Murakami, T., Ota, N., Ozawa, H., Takahashi, T., Tamura, T., Uchiyama, Y., Watanabe, S., Yamaoka, K., Yonetoku, D., Ezoe, Y., Fukazawa, Y., Isobe, N., Iyomoto, N. & et al, A., 1999, Proceedings of SPIE - The International Society for Optical Engineering. Society of Photo-Optical Instrumentation Engineers, Vol. 3765. p. 645-663 19 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Detectors
X rays
detectors
x rays
Orbits
14 Citations (Scopus)

Thick and large area PIN diodes for hard X-ray astronomy

Ota, N., Murakami, T., Sugizaki, M., Kaneda, M., Tamura, T., Ozawa, H., Kamae, T., Makishima, K., Takahashi, T., Tashiro, M., Fukazawa, Y., Kataoka, J., Yamaoka, K., Kubo, S., Tanihata, C., Uchiyama, Y., Matsuzaki, K., Iyomoto, N., Kokubun, M., Nakazawa, T. & 13 others, Kubota, A., Mizuno, T., Matsumoto, Y., Isobe, N., Terada, Y., Sugiho, M., Onishi, T., Kubo, H., Ikeda, H., Nomachi, M., Ohsugi, T., Muramatsu, M. & Akahori, H., 1999 Oct 21, In : Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 436, 1-2, p. 291-296 6 p.

Research output: Contribution to journalArticle

Astronomy
astronomy
Diodes
diodes
X rays

Variability pattern and the spectral evolution of blazars

Kataoka, J., 1999, In : Astronomische Nachrichten. 320, 4-5, p. 309 1 p.

Research output: Contribution to journalArticle

blazars
flares
particle accelerators
spectral energy distribution
light curve
1998
20 Citations (Scopus)

Electronic system for the Astro-E Hard X-ray Detector

Takahashi, T., Nomachi, M., Fukazawa, Y., Tashiro, M., Ezawa, H., Hamaya, M., Horii, M., Isobe, N., Iyomoto, N., Kataoka, J., Kamae, T., Kawaguchi, G., Kubo, H., Kubo, S. & Kubota, A., 1998, Proceedings of SPIE - The International Society for Optical Engineering. Siegmund, O. H. W. (ed.). SPIE, Vol. 3445. p. 155-168 14 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Detectors
X rays
detectors
electronics
x rays
14 Citations (Scopus)

Verification of the Astro-E Hard X-ray Detector based on newly developed Ground Support Equipment

Kataoka, J., Nomachi, M., Takahashi, T., Kawaguchi, G., Terada, Y., Murakami, T., Tanihata, C., Uchiyama, Y., Yamaoka, K., Fukazawa, Y., Kamae, T., Makishima, K., Tashiro, M. & Kubo, H., 1998, Proceedings of SPIE - The International Society for Optical Engineering. Siegmund, O. H. W. (ed.). SPIE, Vol. 3445. p. 143-154 12 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

ground support equipment
Ground supports
Detectors
ground tests
X rays
1997
7 Citations (Scopus)

Integration of the readout electronics for the ASTRO-E hard X-ray detector

Ozawa, H., Kataoka, J., Murakami, T., Sugizaki, M., Takahashi, T., Yamaoka, K., Ezawa, H., Fukazawa, Y., Kamae, T., Makishima, K., Mizuno, T., Nakazawa, K., Osone, S., Ikeda, H., Tsukada, K. & Kubo, H., 1997, Proceedings of SPIE - The International Society for Optical Engineering. Hoover, R. B. & Doty, F. P. (eds.). Vol. 3115. p. 235-243 9 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

large scale integration
readout
Electronic equipment
Detectors
X rays
1996
191 Citations (Scopus)

ASCA observation of an X-ray/TeV flare from the BL Lacertae object Markarian 421

Takahashi, T., Tashiro, M., Madejski, G., Kubo, H., Kamae, T., Kataoka, J., Kii, T., Makino, F., Makishima, K. & Yamasaki, N., 1996, In : Astrophysical Journal. 470, 2 PART II

Research output: Contribution to journalArticle

BL Lacertae objects
flares
x rays
erg
rays
17 Citations (Scopus)

Development of the hard X-ray detector for the ASTRO-E mission

Takahashi, T., Ezawa, H., Fukazawa, Y., Hirayama, M., Idesawa, E., Ikeda, H., Ishisaki, Y., Lyomoto, N., Kamae, T., Kataoka, J., Kaneda, H., Kubo, H., Makishima, K., Matsushita, K., Matsuzaki, K., Mizuno, T., Murakami, T., Nagata, K., Nakamae, S., Nomachi, M. & 10 others, Obayashi, H., Ohtsuka, T., Ozawa, H., Saito, Y., Sugizaki, M., Tamura, T., Tashiro, M., Tsuchida, N., Tsukada, K. & Yoshida, A., 1996, In : Astronomy and Astrophysics Supplement Series. 120, 4, p. 645-648 4 p.

Research output: Contribution to journalArticle

counters
detectors
collimators
x rays
energy
1995
17 Citations (Scopus)

A search for massive neutral bosons in orthopositronium decay

Maeno, T., Fujikawa, M., Kataoka, J., Nishihara, Y., Orito, S., Shigekuni, K. & Watanabe, Y., 1995 Jun 1, In : Physics Letters B. 351, 4, p. 574-578 5 p.

Research output: Contribution to journalArticle

bosons
decay
decay rates
photons
germanium