1.2k citations · 1.3k across the 8 of their papers we have counts for
3 papers · 1 filter
Probing the History of the Galaxy Assembly of the Counter-rotating Disk Galaxy PGC 66551
Ivan Katkov, Damir Gasymov, Alexei Kniazev +4
Stellar counter-rotation in disk galaxies directly relates to the complex phenomenon of the disk mass assembly believed to be driven by external processes, such as accretion and me…
Star formation in outer rings of S0 galaxies. IV. NGC 254 -- a double-ringed S0 with gas counter-rotation
Ivan Katkov, Alexei Kniazev, Olga Sil'chenko +1
Although S0 galaxies are usually considered "red and dead", they often demonstrate star formation organized into ring structures. We aim to clarify the nature of this phenomenon an…
SEGUE: A Spectroscopic Survey of 240,000 stars with g=14-20
II SEGUE Collaboration, Brian Yanny, Constance Rockosi +2
The SEGUE survey obtained 240,000 moderate resolution (R = 1800) spectra from 3900 - 9000 Angstroms of fainter Milky Way stars (14.0 < g < 20.3) of a wide variety of spectral types…