42 citations · 121 across the 9 of their papers we have counts for
9 papers
First discovery of QPOs in the dwarf nova HS 2325+8205 based on TESS photometry
Qi-Bin Sun, Sheng-Bang Qian, Li-Ying Zhu +9
HS 2325+8205 is a long-period eclipsing dwarf nova with an orbital period above the period gap (Porb>3 h) and is reported to be a Z Cam-type dwarf nova. Based on the photometry of…
Spot Model for Identifications of Periods in Asynchronous Polars
Qishan Wang, Shengbang Qian, Zhongtao Han +3
We improved the discless accretion models of Wynn \& King, considering the effects of the changing aspect due to the white dwarf spin and the variable feeding intensity caused by t…
Photometric Analysis of the eclipsing Polar MN Hya
Qi-Shan Wang, Sheng-Bang Qian, Zhong-Tao Han +3
As an eclipsing polar with 3.39 hrs orbital period, MN Hya was going through state change when we observed it during 2009-2016. 10 new mid-eclipse times, along with others obtained…
The white dwarf binary pathways survey - II. Radial velocities of 1453 FGK stars with white dwarf companions from LAMOST DR4
A. Rebassa-Mansergas, J. J. Ren, P. Irawati +18
We present the second paper of a series of publications aiming at obtaining a better understanding regarding the nature of type Ia supernovae (SNIa) progenitors by studying a large…
Double cyclic variations in orbital period of the eclipsing cataclysmic variable EX Dra
Zhong-tao Han, Sheng-bang Qian, Irina Voloshina +1
EX Dra is a long-period eclipsing dwarf nova with mag amplitude outbursts. This star has been monitored photometrically from November, 2009 to March, 2016 and 29 new mid-…
Long-term photometric behavior of the eclipsing cataclysmic variable V729 Sgr
Han Zhongtao, Qian Shengbang, Lajús +3
We present the analysis results of an eclipsing cataclysmic variable (CV) V729 Sgr, based on our observations and AAVSO data. Some outburst parameters were determined such as outbu…
Long-term photometric behaviour of the eclipsing Z Cam-type dwarf nova AY Psc
Zhong-tao Han, Sheng-bang Qian, Irina Voloshina +1
New eclipse timings of the Z Cam-type dwarf nova AY Psc were measured and the orbital ephemeris was revised. Based on the long-term AAVSO data, moreover, the outburst behaviors wer…
Physical parameters and orbital period variation of a newly discovered cataclysmic variable GSC 4560-02157
Zhong-tao Han, Sheng-bang Qian, Irina Voloshina +3
GSC 4560-02157 is a new eclipsing cataclysmic variable with an orbital period of days. By using the published and band data together with our observations, we d…
The mass function of hydrogen-rich white dwarfs: robust observational evidence for a distinctive high-mass excess near 1Msun
A. Rebassa-Mansergas, M. Rybicka, X. -W. Liu +2
The mass function of hydrogen-rich atmosphere white dwarfs has been frequently found to reveal a distinctive high-mass excess near 1Msun. However, a significant excess of massive w…