236 citations · 1.6k across the 73 of their papers we have counts for
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GREX-PLUS Science Book
PLUS Science Team, Akio K. Inoue, Yuichi Harikane +28
GREX-PLUS (Galaxy Reionization EXplorer and PLanetary Universe Spectrometer) is a mission candidate for a JAXA's strategic L-class mission to be launched in the 2030s. Its primary…
Supermassive primordial black holes: a view from clustering of quasars at
Takumi Shinohara, Wanqiu He, Yoshiki Matsuoka +3
We investigate a scenario where primordial black holes (PBHs) can be the progenitors of supermassive black holes (SMBHs) observed at . To this end, we carried out clusterin…
A new quadruple gravitational lens from the Hyper Suprime-Cam Survey: the puzzle of HSC~J115252+004733
Anupreeta More, Chien-Hsiu Lee, Masamune Oguri +16
We report the serendipitous discovery of a quadruply lensed source at , HSC~J115252+004733, from the Hyper Suprime-Cam (HSC) Survey. The source is lensed by an earl…
An investigation of star formation and dust attenuation in major mergers using ultraviolet and infrared data
F. -T. Yuan, T. T. Takeuchi, Y. Matsuoka +3
Merger processes play an important role in galaxy formation and evolution. To study the influence of merger processes on the evolution of dust properties and cosmic star formation…
AGN environments: is the viewing angle sufficient to explain the difference between broad-line and narrow-line AGN? -- A low-redshift study of close AGN neighbours. Paper I
Beatriz Villarroel, Andreas Korn, Yoshiki Matsuoka
The unification of active galactic nuclei (AGN) is a model that has been difficult to test due to the lack of knowledge on the intrinsic luminosities of the objects. We present a t…
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…