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| Paper: |
A Preliminary Photometric Study of the HW Vir-like Binary
NSVS14256825 |
| Volume: |
451, 9th Pacific Rim Conference on Stellar Astrophysics |
| Page: |
155 |
| Authors: |
Zhu, L.; Qian, S.; Liu, L.; Liao, W. P.; He, J. J.; Li, L. J.; Zhao, E. G.; Dai, Z. B.; Zhang, J.; Li, K. |
| Abstract: |
HW Vir-like eclipsing binaries are a group of detached binary
systems that consists a very hot subdwarf B (sdB) type primary and a
fully convective M-type secondary with periods shorter than 4 hours.
Here we report the preliminary photometric study of the HW Vir-like binary
NSVS14256825 based on our four years data. By analyzing the high
precise BV(IR)c light curves of NSVS14256825 with the 2003 version of
Wilson-Van Hamme code, we derived the mass ratio of this binary as q=0.22.
Assuming the mass of the primary component of NS14256825 is 0.46 M☉,
the mass of its secondary component should be 0.1M☉(105MJup)
for the fully convective star. The O-C diagram of NS14256825 is shown here
and the detail analysis is in progress. |
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