Zobrazeno 1 - 10
of 199
pro vyhledávání: '"Nobukawa M"'
Autor:
Nakajima, H., Maeda, Y., Uchida, H., Tanaka, T., Tsunemi, H., Hayashida, K., Tsuru, T. G., Dotani, T., Nagino, R., Inoue, S., Ozaki, M., Tomida, H., Natsukari, C., Ueda, S., Mori, K., Yamauchi, M., Hatsukade, I., Nishioka, Y., Sakata, M., Beppu, T., Honda, D., Nobukawa, M., Hiraga, J. S., Kohmura, T., Murakami, H., Nobukawa, K. K., Bamba, A., Doty, J. P., Iizuka, R., Sato, T., Kurashima, S., Nakaniwa, N., Asai, R., Ishida, M., Mori, H., Soong, Y., Okajima, T., Serlemitsos, P., Tawara, Y., Mitsuishi, I., Ishibashi, K., Tamura, K., Hayashi, T., Furuzawa, A., Sugita, S., Miyazawa, T., Awaki, H., Miller, E. D., Yamaguchi, H.
We describe the in-orbit performance of the soft X-ray imaging system consisting of the Soft X-ray Telescope and the Soft X-ray Imager aboard Hitomi. Verification and calibration of imaging and spectroscopic performance are carried out making the bes
Externí odkaz:
http://arxiv.org/abs/1709.08829
Autor:
Dogiel, V. A., Chernyshov, D. O., Kiselev, A. M., Nobukawa, M., Cheng, K. S., Hui, C. Y., Ko, C. M., Nobukawa, K. K., Tsuru, T. G.
From the rate of hydrogen ionization and the gamma ray flux, we derived the spectrum of relativistic and subrelativistic cosmic rays (CRs) nearby and inside the molecular cloud Sgr B2 near the Galactic Center (GC). We studied two cases of CR propagat
Externí odkaz:
http://arxiv.org/abs/1507.02440
Autor:
Nobukawa, K. K., Nobukawa, M., Uchiyama, H., Tsuru, T. G., Torii, K., Tanaka, T., Chernyshov, D. O., Fukui, Y., Dogiel, V. A., Koyama, K.
A common idea for the origin of the Galactic diffuse X-ray emission, particularly that of the iron lines from neutral and highly ionized atoms, is a superposition of many cataclysmic variables and coronally active binaries. In this scenario, the flux
Externí odkaz:
http://arxiv.org/abs/1506.00759
Publikováno v:
Advances in Space Research, 55, 2493-2499 (2015)
HESS J1841$-$055 is a diffuse unidentified gamma-ray source with the size of $\sim\,1.3^{\circ}\times\,1^{\circ}$. No conclusive counterpart in other wavelengths has so far detected. To search for X-rays responsible for the TeV emission, the Suzaku o
Externí odkaz:
http://arxiv.org/abs/1506.00750
Autor:
Koyama, K., Kataoka, J., Nobukawa, M., Uchiyama, H., Nakashima, S., Aharonian, F., Chernyakova, M., Ichinohe, Y., Nobukawa, K. K., Maeda, Y., Matsumoto, H., Murakami, H., Ricci, C., Stawarz, L., Tanaka, T., Tsuru, T. G., Watanabe, S., Yamauchi, S., Yuasa, T.
The most characteristic high-energy phenomena in the Galactic center (GC) region is the presence of strong K-shell emission lines from highly ionized Si, S, Ar, Ca, Fe and Ni, which form the Galactic Center X-ray Emission (GCXE). These multiple lines
Externí odkaz:
http://arxiv.org/abs/1412.1170
Autor:
Hughes, J. P., Safi-Harb, S., Bamba, A., Katsuda, S., Leutenegger, M., Long, K. S., Maeda, Y., Mori, K., Nakajima, H., Sawada, M., Tanaka, T., Uchida, H., Yamaguchi, H., Aharonian, F., Funk, S., Hiraga, J., Ishida, M., Koyama, K., Matsumoto, H., Nobukawa, M., Ozaki, M., Tamagawa, T., Tsunemi, H., Tomida, H., Uchiyama, Y., Uno, S.
Thanks to the unprecedented spectral resolution and sensitivity of the Soft X-ray Spectrometer (SXS) to soft thermal X-ray emission, ASTRO-H will open a new discovery window for understanding young, ejecta-dominated, supernova remnants (SNRs). In par
Externí odkaz:
http://arxiv.org/abs/1412.1169
Autor:
Tsuru, T. G., Uchiyama, H., Nobukawa, K. K., Nobukawa, M., Nakashima, S., Koyama, K., Torii, K., Fukui, Y.
We report the first results from high-statistics observation of the 6.4-keV line in the region of $l= +1.5^\circ$ to $+3.5^\circ$ (hereafter referred to as GC East), with the goal to uncover the origin of the Galactic ridge X-ray emission (GRXE). By
Externí odkaz:
http://arxiv.org/abs/1408.0205
Autor:
Nakashima, S., Nobukawa, M., Uchida, H., Tanaka, T., Tsuru, T. G., Koyama, K., Murakami, H., Uchiyama, H.
Publikováno v:
2013, ApJ, 773, 20N
We report Suzaku results for soft X-ray emission to the south of the Galactic center (GC). The emission (hereafter "GC South") has an angular size of ~42' x 16' centered at (l, b) ~ (0.0, -1.4), and is located in the largely extended Galactic ridge X
Externí odkaz:
http://arxiv.org/abs/1310.4236
Autor:
Yusef-Zadeh, F., Hewitt, J. W., Wardle, M., Tatischeff, V., Roberts, D., Cotton, W., Uchiyama, H., Nobukawa, M., Tsuru, T. G., Heinke, C., Royster, M.
The high energy activity in the inner few degrees of the Galactic center is traced by diffuse radio, X-ray and gamma-ray emission. The physical relationship between different components of diffuse gas emitting at multiple wavelengths is a focus of th
Externí odkaz:
http://arxiv.org/abs/1206.6882
Autor:
Chernyshov, D. O., Dogiel, V. A., Nobukawa, M., Tsuru, T. G., Koyama, K., Uchiyama, H., Matsumoto, H.
We analyze the diffuse Fe I K-alpha line generated in the diffuse interstellar molecular hydrogen by primary photons or subrelativistic protons injected by Sagittarius (Sgr) A*. We showed that unlike emission from compact molecular clouds, this emiss
Externí odkaz:
http://arxiv.org/abs/1109.2614