24 citations · 36 across the 3 of their papers we have counts for
5 papers
Method to Estimate the Effective Temperatures of Late-Type Giants using Line-Depth Ratios in the Wavelength Range 0.97-1.32m
Daisuke Taniguchi, Noriyuki Matsunaga, Naoto Kobayashi +7
The effective temperature, one of the most fundamental atmospheric parameters of a star, can be estimated using various methods, and here we focus on the method using line-depth ra…
Near infrared diffuse interstellar bands toward the Cygnus OB2 association
Satoshi Hamano, Naoto Kobayashi, Sohei Kondo +16
We obtained the near-infrared (NIR) high-resolution () spectra of the seven brightest early-type stars in the Cygnus OB2 association for investigating the en…
Origin of the Broad Iron Line Feature and the Soft X-ray Variation in Seyfert Galaxies
Naoki Iso, Ken Ebisawa, Hiroaki Sameshima +4
Many Seyfert galaxies are known to exhibit significant X-ray spectral variations and seemingly broad iron K-emission line features. In this paper, we show that the "variable partia…
Observations of Gamma-ray Bursts with ASTRO-H and Fermi
M. Ohno, T. Kawano, M. S. Tashiro +9
ASTRO-H, the sixth Japanese X-ray observatory, which is scheduled to be launched by the end of Japanese fiscal year 2015 has a capability to observe the prompt emission from Gamma-…
Ultraviolet Fe II emission in z ~ 2 quasars
Hiroaki Sameshima, Jose Maza, Yoshiki Matsuoka +6
We present spectra of six luminous quasars at z ~ 2, covering rest wavelengths 1600-3200 A. The fluxes of the UV Fe II emission lines and Mg II 2798 doublet, the line widths of Mg…