340 citations · 1.7k across the 45 of their papers we have counts for
5 papers · 1 filter
Discovery of Metastable Helium Absorption Lines in V1280 Scorpii
H. Naito, A. Tajitsu, A. Arai +1
We report the discovery of blue-shifted metastable He I* absorption lines at 3188 A and 3889 A with multiple components on high-resolution spectra (R ~ 60,000) of V1280 Scorpii. Si…
Detection of Low-Level Activities in Solar-Analog Stars from the Emission Strengths of Ca II 3934 Line
Yoichi Takeda, Akito Tajitsu, Satoshi Honda +3
Activity studies of solar-type stars, especially with reference to the status of our current Sun among them, have exposed the importance of (1) homogeneously selecting the sample s…
Examination of the mass-dependent Li depletion hypothesis by the Li abundances of the very metal-poor double-lined spectroscopic binary G166-45
Wako Aoki, Hiroko Ito, Akito Tajitsu
The Li abundances of the two components of the very metal-poor ([Fe/H]=-2.5) double-lined spectroscopic binary G166-45 (BD+26 2606) are determined separately based on high resoluti…
Five-Year Optical and Near Infrared Observations of the Extremely Slow Nova V1280 Scorpii
H. Naito, S. Mizoguchi, A. Arai +10
We present optical (, , , and ) and near infrared (, and ) photometric and spectroscopic observations of a classical nova V1280 Sc…
The image slicer for the Subaru Telescope High Dispersion Spectrograph
Akito Tajitsu, Wako Aoki, Tomoyasu Yamamuro
We report on the design, manufacturing, and performance of the image slicer for the High Dispersion Spectrograph (HDS) on the Subaru Telescope. This instrument is a Bowen-Walraven…