activity
19952022
most citedThe 2dF Galaxy Redshift Survey: Spectra and redshifts

2.4k citations · 16.8k across the 82 of their papers we have counts for

collaborators

84 papers

astro-ph.GA2022★ 21 cited

Potential signature of Population III pair-instability supernova ejecta in the BLR gas of the most distant quasar at z = 7.54

Yuzuru Yoshii, Hiroaki Sameshima, Takuji Tsujimoto +3

The search for Population III (Pop III) stars has fascinated and eluded astrophysicists for decades. One promising place for capturing evidence of their presence must be high-redsh…

astro-ph.GA2019★ 63 cited

Reverberation Measurements of the Inner Radii of the Dust Tori in Quasars

Takeo Minezaki, Yuzuru Yoshii, Yukiyasu Kobayashi +8

We present the results of a dust-reverberation survey of quasars at redshifts z<0.6. We found a delayed response of the K-band flux variation after the optical flux variation in 25…

astro-ph.GA2017★ 12 cited

Calibration of AGN Reverberation Distance Measurements

Shintaro Koshida, Yuzuru Yoshii, Yukiyasu Kobayashi +6

In Yoshii et al. (2014), we described a new method for measuring extragalactic distances based on dust reverberation in active galactic nuclei (AGNs), and we validated our new meth…

astro-ph.GA2014★ 235 cited

Reverberation Measurements of the Inner Radius of the Dust Torus in 17 Seyfert Galaxies

S. Koshida, T. Minezaki, Y. Yoshii +8

We present the results of a dust reverberation survey for 17 nearby Seyfert 1 galaxies, which provides the largest homogeneous data collection for the radius of the innermost dust…

astro-ph.CO2014★ 63 cited

A New Method for Measuring Extragalactic Distances

Y. Yoshii, Y. Kobayashi, T. Minezaki +2

We have pioneered a new method for the measurement of extragalactic distances. This method uses the time-lag between variations in the short wavelength and long wavelength light fr…

astro-ph.GA2013★ 44 cited

Diffuse Galactic Light in the Field of the Translucent High Galactic Latitude Cloud MBM32

N. Ienaka, K. Kawara, Y. Matsuoka +4

We have conducted B, g, V, and R-band imaging in a 45x40 arcmin^2 field containing part of the high Galactic latitude translucent cloud MBM32, and correlated the intensity of diffu…