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Why Can We Detect Quasar BR12020725 in Co ?
Chisato Ikuta, Nobuo Arimoto, Yoshiaki Sofue +1
We present CO luminosity evolution of both elliptical and spiral galaxies based on a galactic wind model and a bulge-disk model, respectively. We have found that the CO luminosity…
Clustering of red Galaxies near the Radio-loud Quasar 1335.8+2834 at z=1.1
T. Yamada, I. Tanaka, A. Aragón-Salamanca +3
We have obtained new deep optical and near-infrared images of the field of the radio-loud quasar 1335.8+2834 at where an excess in the surface number density of galaxies…
The Epoch of Major Star Formation in High-z Quasar Hosts
Yoshiaki Taniguchi, Nobuo Arimoto, Takashi Murayama +3
We present the results of our observing program on near infrared spectroscopy of high-redshift quasars which have been undertaken both at Kitt Peak National Observatory and at Maun…
The most Distant [OIII]-emitting Quasar PKS 1937-101 at redshift 3.8
Yoshiaki Taniguchi, Takashi Murayama, Kimiaki Kawara +1
We report the discovery of a high-z quasar with unambiguous [OIII]5007 emission; PKS 1937-101 at redshift 3.8. This quasar, however, shows little evidence for rest-frame ultraviole…
Roles of SNIa and SNII in ICM Enrichment
Yuhri Ishimaru, Nobuo Arimoto
Based on ASCA observations Mushotzky et al. (1996, ApJ 466, 686) have recently derived the relative-abundance ratios of -elements to iron, [α/Fe] \simeq 0.2-0.3$, for four rich…