"Watson, D.,Fynbo, J. P. U.,Ledoux, C.,Vreeswijk, P.,Hjorth, J.,Smette, A.,Andersen, A. C.,Aoki, K.,Augusteijn, T.,Beardmore, A. P.,Bersier, D.,Castro Cer&oacute;n, J. M.,D'Avanzo, P.,Diaz-Fraile, D.,Gorosabel, J.,Hirst, P.,Jakobsson, P.,Jensen, B. L.,Kawai, N.,Kosugi, G.,Laursen, P.,Levan, A.,Masegosa, J.,N&auml;r&auml;nen, J.,Page, K. L.,Pedersen, K.,Pozanenko, A.,Reeves, J. N.,Rumyantsev, V.,Shahbaz, T.,Sharapov, D.,Sollerman, J.,Starling, R. L. C.,Tanvir, N.,Torstensson, K.,Wiersema, K.","A logN<sub>HI</sub> = 22.6 Damped Ly&alpha; Absorber in a Dark Gamma-Ray Burst: The Environment of GRB 050401",,"Astrophysical Journal",,"Vol. 652",,"pp. 1011-1019",2006,Dec.
"Kotoku, J.,Kataoka, J.,Kuramoto, Y.,Tsubuku, Y.,Yatsu, Y.,Sato, R.,Ikagawa, T.,Saito, T.,Kawai, N.,Konoue, K.,Miyashita, N.,Iai, M.,Omagari, K.,Kashiwa, M.,Yabe, H.,Imai, K.,Miyamoto, Fujiwara, K.,Masumoto, S.,Usuda, T.,Iljic, T.,Konda, A.,Sugita, S.,Yamanaka, T.,Matsuura, D.,Sagami, T.,Kajiwara, S.,Funaki, Y.,Matsunaga, S.,Shima, T.,Kishimoto, S. .","Pre-flight performance and radiation hardness of the Tokyo Tech pico-satellite Cute-1.7",,"Nuclear Instruments and Methods in Physics Research A",,"Vol. 565",,"pp. 677-685",2006,Sept.
"Nakagawa, Y. E.,Yoshida, A.,Sugita, S.,Tanaka, K.,Ishikawa, N.,Tamagawa, T.,Suzuki, M.,Shirasaki, Y.,Kawai, N.,Matsuoka, M.,Atteia, J.-L.,Pelangeon, A.,Vanderspek, R.,Crew, G. B.,Villasenor, J. S.,Butler, N.,Doty, J. P.,Ricker, G. R.,Pizzichini, G.,Donaghy, T. Q.,Lamb, D. Q.,Graziani, C.,Sato, R.,Maetou, M.,Arimoto, M.,Kotoku, J.,Jernigan, J. G.,Sakamoto, T.,Olive, J.-F.,Boer, M.,Fenimore, E. E.,Galassi, M.,Woosley, S. E.,Yamauchi, M.,Takagishi, K.,Hatsukade, I.","An Optically Dark GRB Observed by HETE-2: GRB 051022",,"Publications of the Astronomical Society of Japan",,"Vol. 58",,"pp. L35-L39",2006,Aug.
"Kawahara, H.,Yoshikawa, K.,Sasaki, S.,Suto, Y.,Kawai, N.,Mitsuda, K.,Ohashi, T.,Yamasaki, N. Y.","Soft X-Ray Transmission Spectroscopy of a Warm/Hot Intergalactic Medium with XEUS",,"Publications of the Astronomical Society of Japan",,"Vol. 58",,"pp. 657-671",2006,Aug.
"Kataoka, J.,Sato, R.,Ikagawa, T.,Kotoku, J.,Kuramoto, Y.,Tsubuku, Y.,Saito, T.,Yatsu, Y.,Kawai, N.,Ishikawa, Y.,Kawabata, N. .","An active gain-control system for Avalanche photo-diodes under moderate temperature variations",,"Nuclear Instruments and Methods in Physics Research A",,"Vol. 564",,"pp. 300-307",2006,Aug.
"Yatsu, Y.,Kuramoto, Y.,Kataoka, J.,Kotoku, J.,Saito, T.,Ikagawa, T.,Sato, R.,Kawai, N.,Kishimoto, S.,Mori, K.,Kamae, T.,Ishikawa, Y.,Kawabata, N. .","Study of avalanche photodiodes for soft X-ray detection below 20 keV",,"Nuclear Instruments and Methods in Physics Research A",,"Vol. 564",,"pp. 134-143",2006,Aug.
"Ohashi, T.,Ishida, M.,Sasaki, S.,Ishisaki, Y.,Mitsuda, K.,Yamasaki, N. Y.,Fujimoto, R.,Takei, Y.,Tawara, Y.,Furuzawa, A.,Suto, Y.,Yoshikawa, Y.,Kawayara, H.,Kawai, N.,Tsuru, T. G.,Matsushita, K.,Kitayama, T. .","DIOS: the diffuse intergalactic oxygen surveyor",,"Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray. Edited by Turner, Martin J. L.; Hasinger, G&uuml;nther. Proceedings of the SPIE",,"Vol. 6266",,"pp. 12",2006,July
"Morii, M.,Matsuoka, M.,Ueno, S.,Tomida, H.,Katayama, H.,Kawasaki, K.,Yokota, T.,Kuramata, N.,Mihara, T.,Kohama, M.,Isobe, N.,Nakajima, M.,Tsunemi, H.,Miyata, E.,Yoshida, A.,Yamaoka, K.,Tsuchiya, Y.,Miyakawa, T.,Kawai, N.,Kataoka, J.,Tanaka, S.,Negoro, H. .","Development of the collimator response of gas slit camera of MAXI",,"Space Telescopes and Instrumentation II: Ultraviolet to Gamma Ray. Edited by Turner, Martin J. L.; Hasinger, G&uuml;nther. Proceedings of the SPIE",,"Vol. 6266",,"pp. 113",2006,July
"Suzuki, M.,Kawai, N.","Energy Conversion Efficiency in Prompt Emissions of Gamma-Ray Bursts",,"Publications of the Astronomical Society of Japan",,"Vol. 58",,"pp. 569-586",2006,June
"Totani, T.,Kawai, N.,Kosugi, G.,Aoki, K.,Yamada, T.,Iye, M.,Ohta, K.,Hattori, T.","Implications for Cosmic Reionization from the Optical Afterglow Spectrum of the Gamma-Ray Burst 050904 at z = 6.3",,"Publications of the Astronomical Society of Japan",,"Vol. 58",,"pp. 485-498",2006,June
"Nakagawa, Y. E.,Yoshida, A.,Ishikawa, N.,Tanaka, K.,Tamagawa, T.,Suzuki, M.,Kawai, N.,Matsuoka, M.,Shirasaki, Y.,Vanderspek, R.,Fenimore, E. E.,Galassi, M.,Atteia, J.-L.,Ricker, G. R. .","Properties of Multi Pulsed GRBs seen by HETE-2",,"Gamma-Ray Bursts in the Swift Era",,"Vol. 836",,"pp. 177-180",2006,May
"Nakagawa, Y. E.,Yoshida, A.,Maetou, M.,Suzuki, M.,Tamagawa, T.,Sakamoto, T.,Kawai, N.,Shirasaki, Y.,Tanaka, K.,Matsuoka, M.,Fenimore, E. E.,Galassi, M.,Atteia, J.-L.,Hurley, K.,Ricker, G. R. .","Temporal and Spectral Analyses of SGRs Observed by HETE-2",,"Gamma-Ray Bursts in the Swift Era",,"Vol. 836",,"pp. 173-176",2006,May
"Krimm, H. A.,Barthelmy, S. D.,Gehrels, N.,Hullinger, D.,Sakamoto, T.,Donaghy, T.,Lamb, D. Q.,Pal'Shin, V.,Golenetskii, S.,Ricker, G. R.,Atteia, J.-L.,Kawai, N.,Sato, G. .","Correlative Analysis of GRBs detected by Swift, Konus and HETE",,"Gamma-Ray Bursts in the Swift Era",,"Vol. 836",,"pp. 145-148",2006,May
"Melandri, A.,Gendre, B.,Antonelli, L. A.,Grazian, A.,de Ugarte Postigo, A.,Gorosabel, J.,Piro, L.,Kosugi, G.,Kawai, N.,de Pasquale, M.,Garmire, G. P.","Multi-wavelength analysis of the field of the dark burst GRB 031220",,"Astronomy and Astrophysics",,"Vol. 451",,"pp. 27-33",2006,May
"Kawai, N.,Kosugi, G.,Aoki, K.,Yamada, T.,Totani, T.,Ohta, K.,Iye, M.,Hattori, T.,Aoki, W.,Furusawa, H.,Hurley, K.,Kawabata, K. S.,Kobayashi, N.,Komiyama, Y.,Mizumoto, Y.,Nomoto, K.,Noumaru, J.,Ogasawara, R.,Sato, R.,Sekiguchi, K.,Shirasaki, Y.,Suzuki, M.,Takata, T.,Tamagawa, T.,Terada, H.,Watanabe, J.,Yatsu, Y.,Yoshida, A.","An optical spectrum of the afterglow of a &gamma;-ray burst at a redshift of z = 6.295",,"Nature",,"Vol. 440",,"pp. 184-186",2006,Mar.
"Shibanov, Y. A.,Zharikov, S. V.,Komarova, V. N.,Kawai, N.,Urata, Y.,Koptsevich, A. B.,Sokolov, V. V.,Shibata, S.,Shibazaki, N.","Subaru optical observations of the two middle-aged pulsars PSR B0656+14 and Geminga",,"Astronomy and Astrophysics",,"Vol. 448",,"pp. 313-326",2006,Mar.
"Kotani, T.,Trushkin, S. A.,Valiullin, R.,Kinugasa, K.,Safi-Harb, S.,Kawai, N.,Namiki, M.","A Massive Jet Ejection Event from the Microquasar SS 433 Accompanying Rapid X-Ray Variability",,"Astrophysical Journal",,"Vol. 637",,"pp. 486-493",2006,Jan.
"Sato, R.,Kataoka, J.,Kanai, Y.,Ishikawa, Y.,Kawabata, N.,Ikagawa, T.,Saito, T.,Kuramoto, Y.,Kawai, N. .","Development of 2 cm-square Hamamatsu avalanche photodiodes for high-resolution X-rays and &gamma;-rays detection",,"Nuclear Instruments and Methods in Physics Research A",,"Vol. 556",,"pp. 535-542",2006,Jan.