From the literature, we construct a sample of 25 Seyfert 2 galaxies (S2s)with a broad line region (BLR) detected in near infrared (NIR) spectroscopy and 29with
We present high quality long slit spectra along the major and minor axes out to 1.5 effective radii of the massive galaxy NGC 4636 taken by the Hobby-Eberly Tel
<正>As a result of the authors’ error, the paper "Determination of the chromospheric quiet network element area index and its variation between 2008 and 2011"