128 citations · 1.8k across the 80 of their papers we have counts for
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gr-qc2019★ 17 cited
A Significant Feature in the General Relativistic Time Evolution of the Redshift of Photons Coming from a Star Orbiting Sgr A*
Hiromi Saida, Shogo Nishiyama, Takayuki Ohgami +16
The star S0-2, orbiting the Galactic central massive black hole candidate Sgr A*, passed its pericenter in May 2018. This event is the first chance to detect the general relativist…
astro-ph.SR2019★ 12 cited
Photospheric nitrogen abundances and carbon 12C/13C ratios of red giant stars
Yoichi Takeda, Masashi Omiya, Hiroki Harakawa +1
Nitrogen abundances and carbon isotope ratios (12C/13C) in the atmospheres of red giants are known to be influenced by dredge-up of H-burning products and serve as useful probes to…