Zobrazeno 1 - 10
of 172
pro vyhledávání: '"Nagase, Fumiaki"'
Publikováno v:
\bibitem[Mihara et al.(1998)]{1998AdSpR..22..987M} Mihara, T., Makishima, K., \& Nagase, F.\ 1998, Advances in Space Research, 22, 987
We systematically analyzed the spectra of X-ray binary pulsars observed with GINGA (Mihara 1995). A new model NPEX (Negative and Positive power-laws EXponential) was introduced t o represent the pulsar continuum. Combining the NPEX continuum with the
Externí odkaz:
http://arxiv.org/abs/1401.5138
Autor:
Enoto, Teruaki, Makishima, Kazuo, Terada, Yukikatsu, Mihara, Tatehiro, Nakazawa, Kazuhiro, Ueda, Tsuyoshi, Dotani, Tadayasu, Kokubun, Motohide, Nagase, Fumiaki, Naik, Sachindra, Suzuki, Motoko, Nakajima, Motoki, Takahashi, Hiromitsu
The accretion-powered pulsar Her X-1 was observed with Suzaku twice in its main-on state, on 2005 October 5-6 and 2006 March 29-30, for a net exposure of 30.5 ks and 34.4 ks, respectively. In the 2005 and 2006 observations, the source was detected at
Externí odkaz:
http://arxiv.org/abs/0708.3536
Autor:
Watanabe, Shin, Sako, Masao, Ishida, Manabu, Ishisaki, Yoshitaka, Kahn, Steven M., Kohmura, Takayoshi, Nagase, Fumiaki, Paerels, Frederik, Takahashi, Tadayuki
Publikováno v:
Astrophys.J.651:421-437,2006
We present results from quantitative modeling and spectral analysis of the high mass X-ray binary Vela X-1 obtained with the Chandra HETGS. The spectra exhibit emission lines from H-like and He-like ions driven by photoionization, as well as fluoresc
Externí odkaz:
http://arxiv.org/abs/astro-ph/0607025
Autor:
Audley, Michael D., Nagase, Fumiaki, Mitsuda, Kazuhisa, Angelini, Lorella, Kelley, Richard L.
Publikováno v:
Mon.Not.Roy.Astron.Soc. 367 (2006) 1147-1154
We report on two ASCA observations of the high-mass X-ray binary pulsar OAO 1657-415. A short observation near mid-eclipse caught the source in a low-intensity state, with a weak continuum and iron emission dominated by the 6.4-keV fluorescent line.
Externí odkaz:
http://arxiv.org/abs/astro-ph/0601075
Publikováno v:
Astrophys.J.631:935-946,2005
We present the results of a systematic study using ASCA of the ionization state for six ``mixed-morphology'' supernova emnants (MMSNRs): IC 443, W49B, W28, W44, 3C391, and Kes 27. MMSNRs show centrally filled thermal X-ray emission, which contrasts t
Externí odkaz:
http://arxiv.org/abs/astro-ph/0507348
Autor:
Watanabe, Shin, Sako, Masao, Ishida, Manabu, Ishisaki, Yoshitaka, Kahn, Steve M., Kohmura, Takayoshi, Morita, Umeyo, Nagase, Fumiaki, Paerels, Frederik, Takahashi, Tadayuki
Publikováno v:
Astrophys.J.597:L37-L40,2003
We report the detection of a fully-resolved, Compton-scattered emission line in the X-ray spectrum of the massive binary GX 301-2 obtained with the High Energy Transmission Grating Spectrometer onboard the Chandra X-ray Observatory. The iron K-alpha
Externí odkaz:
http://arxiv.org/abs/astro-ph/0309344
Autor:
Kawasaki, Masahiro, Ozaki, Masanobu, Nagase, Fumiaki, Masai, Kuniaki, Ishida, Manabu, Petre, Robert
We present the results of X-ray spatial and spectral studies of the ``mixed-morphology'' supernova remnant IC 443 using ASCA. IC 443 has a center-filled image in X-ray band, contrasting with the shell-like appearance in radio and optical bands. The o
Externí odkaz:
http://arxiv.org/abs/astro-ph/0202484
Autor:
Yokogawa, Jun, Paul, Biswajit, Ozaki, Masanobu, Nagase, Fumiaki, Chakrabarty, Deepto, Takeshima, Toshiaki
The new transient X-ray pulsar XTE J0111.2-7317 was observed with Advanced Satellite for Cosmology and Astrophysics (ASCA) on 1998 November 18, a few days after its discovery with the Proportional Counter Array onboard the Rossi X-ray Timing Explorer
Externí odkaz:
http://arxiv.org/abs/astro-ph/0003251
Autor:
Kotani, Taro, Ebisawa, Ken, Dotani, Tadayasu, Inoue, Hajime, Nagase, Fumiaki, Tanaka, Yasuo, Ueda, Yoshihiro
Publikováno v:
Astrophys.J. 539 (2000) 413; Erratum-ibid. 651 (2006) 615-616
We have discovered errors in the calculation of some of the Einstein coefficients in Table 5 and some plots in Figure 3. Due to the errors, the square-root section of the curves of growth of Fe xxvi Ka and Kb, and Ni xxviii Ka in Figure 3 were a few
Externí odkaz:
http://arxiv.org/abs/astro-ph/0003237
Autor:
Yokogawa, Jun, Imanishi, Kensuke, Tsujimoto, Masahiro, Nishiuchi, Mamiko, Koyama, Katsuji, Nagase, Fumiaki, Corbet, Robin H. D.
Publikováno v:
Astrophys.J.Suppl. 128 (2000) 491-510
The Advanced Satellite for Cosmology and Astrophysics (ASCA) has made multiple observations of the Small Magellanic Cloud (SMC). X-ray mosaic images in the soft (0.7--2.0 keV) and hard (2.0--7.0 keV) bands are separately constructed, and the latter p
Externí odkaz:
http://arxiv.org/abs/astro-ph/0002167