KAWAKITA , Hideyo

We present the first spectroscopic abundance determination of iron, alpha-elements (Si, Ca, and Ti), and sodium for the Mira variable V1 in the metal-rich globular cluster NGC 5927. We use high-resolution (R ˜ 28,000), high signal-to-noise ratio (˜200) spectra collected with WINERED, a near-infrared (NIR) spectrograph covering simultaneously...

We present the first spectroscopic abundance determination of iron, alpha-elements (Si, Ca, and Ti), and sodium for the Mira variable V1 in the metal-rich globular cluster NGC 5927. We use high-resolution (R ˜ 28,000), high signal-to-noise ratio (˜200) spectra collected with WINERED, a near-infrared (NIR) spectrograph covering simultaneously...

Here we describe the novel, multi-point Comet Interceptor mission. It is dedicated to the exploration of a little-processed long-period comet, possibly entering the inner Solar System for the first time, or to encounter an interstellar object originating at another star. The objectives of the mission are to address the following questions: What...