3 papers
astro-ph2005
Are Passive Spiral Galaxies truly 'passive' and 'spiral'?: a Near-Infrared perspective
Chisato Yamauchi, Tomotsugu Goto
Passive spiral galaxies - unusual galaxies with spiral morphologies but without any sign of on-going star formation - have recently been shown to exist preferentially in cluster in…
astro-ph2003
The Environmental Effects on Galaxy Evolution Based on the SDSS Data
Tomotsugu Goto, the SDSS collaboration
By constructing a large, uniform galaxy cluster catalog from the SDSS data, we have found that cluster galaxies evolve both spectrally and morphologically. By studying the morpholo…
astro-ph2003
Environmental Effects on Galaxy Evolution
Tomotsugu Goto
It is a remarkable feature that various properties of galaxies vary according to their environments. However, only little has been known on the origin of this variety in galaxies.…