Skip to main content

14 Result(s)

within S Kitamoto Remove this filter

and

  1. No Access

    Article

    Resolve Instrument on X-ray Astronomy Recovery Mission (XARM)

    The X-ray Astronomy Recovery Mission (XARM) is a recovery mission of ASTRO-H/Hitomi, which is expected to be launched in Japanese Fiscal Year of 2020 at the earliest. The Resolve instrument on XARM consists of an...

    Y. Ishisaki, Y. Ezoe, S. Yamada, Y. Ichinohe… in Journal of Low Temperature Physics (2018)

  2. No Access

    Article

    MUC1 enhances hypoxia-driven angiogenesis through the regulation of multiple proangiogenic factors

    Pancreatic cancer is one of the most lethal malignancies due to its aggressive growth and rapid development of distant metastases. In this context, mucin 1 (MUC1) overexpression and hypoxia are frequently obse...

    S Kitamoto, S Yokoyama, M Higashi, N Yamada, S Takao, S Yonezawa in Oncogene (2013)

  3. No Access

    Article

    Antimonocyte chemoattractant protein-1 gene therapy reduces experimental in-stent restenosis in hypercholesterolemic rabbits and monkeys

    In-stent restenosis results exclusively from neointimal hyperplasia due to mechanical injury and a foreign body response to the prosthesis. Inflammation mediated by monocyte chemoattractant protein-1 (MCP-1) m...

    K Ohtani, M Usui, K Nakano, Y Kohjimoto, S Kitajima, Y Hirouchi, X-H Li… in Gene Therapy (2004)

  4. No Access

    Article

    Superorbital period variations in the X-ray pulsar LMC X-4

    We report the discovery of a decay in the superorbital period of the binary X-ray pulsar LMC X-4. Combining archival data and published long term X-ray light curves, we have found a decay in the third period i...

    B. Paul, S. Kitamoto in Journal of Astrophysics and Astronomy (2002)

  5. No Access

    Chapter and Conference Paper

    X-ray Observation of Black Hole Novae

    X-ray novae are the best objects to study their compact stars. Some of the X-ray novae have been confirmed that they were containing a black hole based on dynamical mass estimations. Besides the dynamical mass...

    S. Kitamoto in Observational Evidence for Black Holes in the Universe (1999)

  6. No Access

    Chapter and Conference Paper

    Direct Measurement of the CCD with a Subpixel Resolution by Using a New Technique

    The response function of the front-illuminated CCD, like SIS on ASCA, can be devided into three parts: the gate structure transmission, the absorption efficiency in the depletion region and the charge spreadin...

    K. Yoshita, S. Kitamoto, E. Miyata, H. Tsunemi, K. C. Gendreau in The Hot Universe (1998)

  7. No Access

    Chapter and Conference Paper

    X-Ray Determination of the Black-Hole Mass in Cygnus X-1

    About 10 X-ray binaries in our Galaxy and LMC/SMC are considered to contain black hole candidates (BHCs). Among these objects, Cyg X-l was identified as the first BHC, and it has led BHCs for more than 25 year...

    A. Kubota, K. Makishima, T. Dotani, H. Inoue, K. Mitsuda, F. Nagase… in The Hot Universe (1998)

  8. No Access

    Chapter and Conference Paper

    The Circumstellar Matter of Cygnus X-3

    X-ray source in Cyg X-3 is embedded in the photo-ionized circumstellar gas. Recombination edges and emission lines were detected by ASCA observation (Kawashima, Kitamoto 1996; Liedahl, Paerels 1996). The stren...

    S. Kitamoto, K. Kawashima in The Hot Universe (1998)

  9. No Access

    Chapter and Conference Paper

    Chemical Abundances of Early Type Stars

    X-rays from early-type stars are emitted by the corona or the stellar wind. The materials in the surface layer of early-type stars are not contaminated by nuclear reactions in the stellar inside. Therefore, ab...

    S. Tanaka, S. Kitamoto, T. Suzuki, K. Torii, M. F. Corcoran, W. Waldron in The Hot Universe (1998)

  10. No Access

    Chapter

    X-Ray Emission from O-Stars

    The X-ray emission mechanism of OB stars is still an unresolved problem. One possible emission mechanism involves hot gases produced by periodic shocks ploughing through the wind (Lucy & White 1980; Lucy 1982)...

    S. Kitamoto, T. Suzuki, K. Torii, Y. Ohno in Magnetodynamic Phenomena in the Solar Atmo… (1996)

  11. No Access

    Chapter and Conference Paper

    Temperature Profiles of Accretion Disks in X-Ray Binaries

    We present the new results of fitting X-ray spectra of two representative X-ray binaries; X-ray Nova Muscae 1991 and Cyg X-2, by a non-steady disk model, in which a temperature gradient, a ≡ — dlogT/dlogr, is lef...

    S. Mineshige, F. Honma, A. Hirano, S. Kitamoto, T. Yamada… in Theory of Accretion Disks — 2 (1994)

  12. No Access

    Article

    New observations of the cyclotron absorption feature in Hercules X–1

    ALTHOUGH neutron stars are generally believed to be born with intense (1011–1013 G) magnetic fields1,2, which then gradually decay3, measurements of their field strengths remain uncertain. In the special case of ...

    T. Mihara, K. Makishima, T. Ohashi, T. Sakao, M. Tashiro, F. Nagase, Y. Tanaka… in Nature (1990)

  13. No Access

    Chapter

    Fractal and Chaotic Time Variation in Cygnus X-1

    The large area proportional counters onboard Ginga enabled us to investigate detailed time variability of a black hole candidate; Cyg X-1. Complex cross spectrum analysis between the fluxes in two different en...

    S. Kitamoto, S. Miyamoto in Timing Neutron Stars (1989)

  14. No Access

    Article

    Discovery of an unusual hard X-ray source in the region of supernova 1987A

    We have discovered a new hard X-ray source near supernova 1987 A, in the Large Magellanic Cloud, from the X-ray astronomy satellite Ginga. The present error box of 0.2° × 0.3° includes the supernova. The energy ...

    T. Dotani, K. Hayashida, H. Inoue, M. Itoh, K. Koyama, F. Makino, K. Mitsuda… in Nature (1987)