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Article type: Cover
1998 Volume 98 Issue 1 Pages
Cover1-
Published: October 20, 1998
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Article type: Appendix
1998 Volume 98 Issue 1 Pages
App1-
Published: October 20, 1998
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Article type: Appendix
1998 Volume 98 Issue 1 Pages
A1-A2
Published: October 20, 1998
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[in Japanese]
Article type: Article
1998 Volume 98 Issue 1 Pages
A3-A5
Published: October 20, 1998
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[in Japanese]
Article type: Article
1998 Volume 98 Issue 1 Pages
A6-A11
Published: October 20, 1998
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Haruo FUJISAKI, Koichi NAKAGAWA, Shigemitsu SANO
Article type: Article
1998 Volume 98 Issue 1 Pages
A12-A15
Published: October 20, 1998
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The thermofield dynamics of the D=10 heterotic thermal string theory is recapitulated through the infrared behaviour of the one-loop cosmological constant in association with the global phase structure of the heterotic thermal string ensemble.
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[in Japanese], [in Japanese], [in Japanese]
Article type: Article
1998 Volume 98 Issue 1 Pages
A16-A22
Published: October 20, 1998
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[in Japanese], [in Japanese], J. da Providencia, [in Japanese]
Article type: Article
1998 Volume 98 Issue 1 Pages
A23-A28
Published: October 20, 1998
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[in Japanese], [in Japanese]
Article type: Article
1998 Volume 98 Issue 1 Pages
A29-A34
Published: October 20, 1998
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T. Hatsuda
Article type: Article
1998 Volume 98 Issue 1 Pages
A35-A47
Published: October 20, 1998
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Fade approximates (PA's) are constructed from the perturbative coefficients of the free energy through O(g^5) in hot QCD. Pade summation is shown to reduce the renormalization-scale dependence substantially even at temperature (T) as low as 250 MeV. Also, PA's predict that the free energy does not deviate more than 10 % from the Stefan-Boltzmann limit for T > 250 MeV. A resumed perturbation based on the δ-expansion method is also studied and applied for the O(4) σ model at finite T.
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[in Japanese]
Article type: Article
1998 Volume 98 Issue 1 Pages
A48-A54
Published: October 20, 1998
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[in Japanese]
Article type: Article
1998 Volume 98 Issue 1 Pages
A55-A59
Published: October 20, 1998
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Article type: Appendix
1998 Volume 98 Issue 1 Pages
A60-A61
Published: October 20, 1998
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Yasushi Suto
Article type: Article
1998 Volume 98 Issue 1 Pages
A62-A65
Published: October 20, 1998
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[in Japanese]
Article type: Article
1998 Volume 98 Issue 1 Pages
A66-A68
Published: October 20, 1998
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[in Japanese], [in Japanese]
Article type: Article
1998 Volume 98 Issue 1 Pages
A69-A71
Published: October 20, 1998
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Masayuki Umemura, Edwin L. Turner
Article type: Article
1998 Volume 98 Issue 1 Pages
A72-A75
Published: October 20, 1998
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Atsunori Yonehara, Shin Mineshige, Tadahiro Manmoto, Jun Fukue, Masayu ...
Article type: Article
1998 Volume 98 Issue 1 Pages
A76-A78
Published: October 20, 1998
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Akihiro ISHIBASHI, Hideki ISHIHARA
Article type: Article
1998 Volume 98 Issue 1 Pages
A79-A81
Published: October 20, 1998
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We study light propagation in anisotropic universes and observational effects of the anisotropy on images of distant sources. We show that a polarization plane rotates relatively with respect to the principal axis of the image of the source.
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Kenji Tomita
Article type: Article
1998 Volume 98 Issue 1 Pages
A82-A86
Published: October 20, 1998
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Premana W. Premadi, Hugo Martel, Richard A. Matzner
Article type: Article
1998 Volume 98 Issue 1 Pages
A87-A89
Published: October 20, 1998
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[in Japanese]
Article type: Article
1998 Volume 98 Issue 1 Pages
A90-A92
Published: October 20, 1998
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Masashi Chiba, Yuzuru Yoshii
Article type: Article
1998 Volume 98 Issue 1 Pages
A93-A96
Published: October 20, 1998
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We present new limits on cosmological parameters from the statistics of gravitational lensing, based on the recently revised knowledge of the luminosity function and internal dynamics of E/S0 galaxies that are essential in lensing high-redshift QSOs. We find that the lens models using updated Schechter parameters for such galaxies, derived from the recent redshift surveys combined with morphological classification, are found to give smaller lensing probabilities than earlier calculated. Inconsistent adoption of these parameters from a mixture of various galaxy surveys gives rise to systematic biases in the results. We also show that less compact dwarf-type galaxies which largely dominate the faint part of the Schechter-form luminosity function contribute little to lensing probabilities, so that earlier lens models overestimate incidents of small separation lenses. Applications of the lens models to the existing lens surveys indicate that reproduction of both the lensing probability of optical sources and the image separations of optical and radio lenses is significantly improved in the revised lens models. The likelihood analyses allow us to conclude that a flat universe with Ω_0=0.3^<+0.2>_<-0.1> and Ω_0+λ_0=1 is most preferable, and a matter-dominated flat universe with λ_0=0 is ruled out at 98 % confidence level. These new limits are unaffected by inclusion of uncertainties in the lens properties.
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Takahiro T. Nakamura
Article type: Article
1998 Volume 98 Issue 1 Pages
A97-A98
Published: October 20, 1998
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We calculate numerically the waveform of gravitational waves from super-massive black hole coalescence in case it be lensed by an intervening galaxy, taking correctly the diffraction effect into account. The waveform detected by LISA (AD2014) [1] will look like Figure 1 for the four lensing configurations shown in Figure 2. The beat of gravitational waves should be observable, if the event rate (which is highly uncertain) is sufficiently large. [figure] Figure 1: Amplitude of gravitational waves observed by LISA, from M=10^6M_<⊙> black hole binary at z_s=2, lensed by υ=100km/s lensing galaxy at z_d= 0.5, for the four configurations in Fig.2. Dotted, dashed and solid curves are, respectively, the unlensed waveforms, the waveforms in quasi-classical approximation of eq.(4) and the full waveforms taking the diffraction effect into account. H_0=70km/s/Mpc.
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[in Japanese]
Article type: Article
1998 Volume 98 Issue 1 Pages
A99-A102
Published: October 20, 1998
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[in Japanese]
Article type: Article
1998 Volume 98 Issue 1 Pages
A103-A105
Published: October 20, 1998
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Kazuhiro YAMAMOTO
Article type: Article
1998 Volume 98 Issue 1 Pages
A106-A108
Published: October 20, 1998
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Equations to investigate fluctuations in cosmic X-ray background radiation due to point-like sources at high-redshift are formulated in a systematic way. The angular power spectrum of X-ray background fluctuations is investigated from large-scales to small-scales in various cosmological models such as open universe models and models with the cosmological constant, assuming a simple evolution model of the sources. It turns out that the nearby sources of low redshift are the dominant contributors to the large-angle fluctuations. On the other hand, the dominant contributors to the small-angle fluctuations are the high-redshift sources. The effect of epoch-dependent bias is demonstrated for small-angle fluctuations. The contribution from shot noise fluctuations is also discussed.
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[in Japanese]
Article type: Article
1998 Volume 98 Issue 1 Pages
A109-A111
Published: October 20, 1998
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Keiichi Umetsu
Article type: Article
1998 Volume 98 Issue 1 Pages
A112-A115
Published: October 20, 1998
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The tidal component of the gravitational field distots images of distant sources. Since image distortions trace the local gravitatinal potential of the lens, the distortion of images of faint, high-redshift galaxies by foreground clusters of galaxies can be used to determine the projected mass distribution of clusters. I review the new, parameter free method of the cluster mass reconstruction from observed shear field.
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M. HATTORI
Article type: Article
1998 Volume 98 Issue 1 Pages
A116-A119
Published: October 20, 1998
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Takashi HAMANA
Article type: Article
1998 Volume 98 Issue 1 Pages
A120-
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Article type: Appendix
1998 Volume 98 Issue 1 Pages
App2-
Published: October 20, 1998
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Article type: Appendix
1998 Volume 98 Issue 1 Pages
App3-
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Article type: Cover
1998 Volume 98 Issue 1 Pages
Cover2-
Published: October 20, 1998
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Article type: Cover
1998 Volume 98 Issue 1 Pages
Cover3-
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