30 citations · 76 across the 6 of their papers we have counts for
6 papers · 1 filter
Possible Young Stellar Objects without Detectable CO Emission
Ikuru Iwata, Shin-ichiro Okumura, Mamoru Saito
We found that at least 18 Young Stellar Object candidates invisible at optical and near-infrared wavelengths, as well as ^12CO emission. They are IRAS point sources with FIR colors…
Photometric Properties of Kiso Ultraviolet-Excess Galaxies in the Lynx-Ursa Major Region
Tsutomu T. Takeuchi, Akihiko Tomita, Kouichiro Nakanishi +3
We have performed a systematic study of several regions in the sky where the number of galaxies exhibiting star formation (SF) activity is greater than average. We used Kiso ultrav…
Photometric Observations of Star Formation Activity in Early Type Spirals
T. Usui, M. Saito, A. Tomita
We observationally study the current star formation activities of early type spiral galaxies. We construct a complete sample of 15 early type spirals having far-infrared (FIR) to o…
H-Alpha Velocity Fields of H II Regions in Nearby Dwarf Irregular Galaxies
A. Tomita, K. Ohta, K. Nakanishi +2
We present H-alpha velocity fields of thirteen giant H II regions in four nearby dwarf irregular galaxies, NGC 2366, Holmberg II, IC 2574, and WLM. We classify the velocity feature…
Characteristics of Kiso Ultra-Violet Excess Galaxies
Akihiko Tomita, Tsutomu T. Takeuchi, Tadashi Usui +1
We examined the general characteristics of the Kiso Ultra-violet Excess Galaxies (KUGs). We present for the first time the quantitative expressions for the criteria of the KUGs; th…
A Variation of the Present Star Formation Activity of Spiral Galaxies
Akihiko Tomita, Yoshio Tomita, Mamoru Saito
The star formation rate in spiral galaxies is considered to be decreasing continuously with time in a time scale of yr. The present star formation activity, on the other h…