In modeling strong gravitational lens systems, one often adopts simple
models, such as singular isothermal elliptical density plus lowest-order
external perturbation. However, such simple models may mislead us if the real
mass distribution is more...
Yoshiaki Taniguchi,Yasuhiro Shioya,Takeshi G. Tsuru,Satoru Ikeuchi
Feb 2000
Recent high-resolution X-ray imaging studies have discovered possible
candidates of intermediate-mass black holes with masses of in circumnuclear regions of many (disk) galaxies. It is known
that a large number of mas...
The effects of the UV background radiation on the formation of sub-galactic
clouds are studied by means of one-dimensional hydrodynamical simulations. The
radiative transfer of the ionizing photons due to the absorption by HI, HeI and
HeII, neglec...
We investigate whether or not a supermassive black hole (SMBH) with mass can be made in the heart of ultraluminous infrared
galaxies (ULIGs) during the course of mergers between/among gas rich galaxies.
(a) If one progenitor...
(ABRIDGED)The Ly clouds at low redshifts (z < 1.7)observed by
HST showed us two unexpected features: Lanzetta et.al.establised the
association between Ly clouds and galaxies, and Ulmer pointed out the
strong clustering of Ly$\alpha...
We propose and investigate a new formation mechanism for globular clusters in
which they form within molecular clouds that are formed in the shocked regions
created by galactic winds driven by successive supernova explosions shortly
after the init...
soken.ac.jp
