97 citations · 191 across the 7 of their papers we have counts for
5 papers · 1 filter
A brown dwarf orbiting around the planetary-nebula central binary KV Vel
S. -B. Qian, L. -Y. Zhu, F. -X. Li +9
KV Vel is a non-eclipsing short-period (P = 0.3571 days) close binary containing a very hot subdwarf primary (77000 K) and a cool low-mass secondary star (3400 K) that is located a…
DE CVn: an eclipsing post-common envelope binary with a circumbinary disk and a giant planet
Z. T Han, S. B. Qian, L. Y. Zhu +8
We present a timing analysis of the eclipsing post-common envelope binary (PCEB) DE CVn. Based on new CCD photometric observations and the published data, we found that the orbital…
Physical Properties and Evolutionary States of EA-type Eclipsing Binaries Observed by LAMOST
S. -B. Qian, J. Zhang, J. -J. He +5
About 3196 EA-type binaries (EAs) were observed by LAMOST by June 16, 2017 and their spectral types were derived. Meanwhile stellar atmospheric parameters of 2020 EAs were determin…
A New Stellar Outburst Associated with the Magnetic Activities of the K-type Dwarf in a White-dwarf Binary
S. -B. Qian, Z. -T. Han, B. Zhang +7
1SWASP\,J162117.36441254.2 was originally classified as an EW-type binary with a period of 0.20785\,days. However, it was detected to have undergone a stellar outburst on June 3…
LAMOST Views Scuti Pulsating Stars
S. B. Qian, L. J. Li, J. J. He +3
About 766 Scuti stars were observed by LAMOST by June 16, 2017. Stellar atmospheric parameters of 525 variables were determined, while spectral types were obtained for all samp…