4 papers · 1 filter
Deep Intermediate-Band Surface Photometry of NGC 5907
BATC Collaboration, Z. Y. Zheng, Z. H. Shang +3
We obtained very deep exposures of NGC 5907 with a Schmidt telescope, large-format CCD, and intermediate-band filters centered at 6660A and 8020A. These two filters, part of a 15-f…
New Infrared Seyfert Galaxies
Q. -S. Gu, J. -H. Huang, H. -J. Su +1
We present optical spectra for new infrared Seyfert galaxies obtained with the 2.16m telescope at Beijing Astronomical Observatory (BAO). After wavelength and flux calibration, the…
F062965743 : A Very Massive Starburster ?
J. H. Huang, Q. S. Gu, H. J. Su +1
We have observed an object having strong Balmer absorption lines and blue continuum. The inference about the nuclear stellar population drawn from the line ratios is basically coin…
The Bar-enhanced Star-formation Activities in Spiral Galaxies
J. H. Huang, Q. S. Gu, H. J. Su +3
We use the ratio and the IRAS color index S/S (both widely used as indices of relative star formation rates in galaxies) to analyse subsets (c…