VLBI Observations of the Galactic Center Source Sgr A* at 86 GHz and 215 GHz
We summarize previous VLBI observations of Sgr A* at millimeter wavelengths and present new results from VLBI observations at 86
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The environments and ages of extragalactic radio sources inferred from multi-frequency radio maps
A 3-dimensional model of the synchrotron emissivity of the cocoons of powerful extragalactic radio sources of type FRII is constructed.
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A wide field survey of the distant rich cluster CL0024+1654
We describe the first results from a comprehensive study of the distant cluster Cl0024+1654 (z=0.39) based upon a pattern of
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Binary Lenses in OGLE-II 1997-1999 Database. A Preliminary Study
We present 18 binary lens candidates from OGLE-II database for seasons 1997-1999. The candidates have been selected by visual light
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Coexistence of Superconductivity and Magnetism in R2-xcexrusr2cu 2o10-? (R=Eu and Gd)
R2-xCexRuSr2Cu2O10-d(Ru-2122) is the first Cu-O based system in which superconductivity (SC) in the CuO2 planes and weak-ferromagnetism (W-FM) in the
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Lattice coupled first order magnetoresistance transition in an A-type antiferromagnet: Pr$_{0.46}$Sr$_{0.54}$MnO$_3$
We investigated magnetic, magnetotransport and magnetostriction properties of the A-type antiferromagnet Pr$_{0.46}$Sr$_{0.54}$MnO$_3$ which undergoes a first order paramagnetic-antiferromagnetic transition below
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Spectroscopic confirmation of a cluster of galaxies at z=1 in the field of the gravitational lens MG2016+112
We present new optical data on the cluster AX J2019+1127 identified by the X-ray satellite ASCA at z\sim 1 (Hattori
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Supersolid Phase in Helium-4
The probable observation of a supersolid helium phase was recently reported by Kim {\it et al}. In this article, we
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S-wave pi-pi scattering lengths
An old calculation of the s-wave pi-pi scattering lengths is updated and supplemented with experimental data on the pi-pi s-wave
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The FeII Optical Emission in AGN
We investigated the optical FeII emission in a sample of about 215 low-redshift AGN (quasars and luminous Seyfert 1 galaxies).
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Towards the Event Horizon - The Vicinity of AGN at Micro-Arcsecond Resolution
We summarize the present status of VLBI experiments at 3 mm (86 GHz), 2 mm (129-150 GHz) and 1.3 mm
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