Photometric and Spectroscopic Observations of Exoplanet Transit Events - Planetary Exploration and Science: Recent Results and Advances - page 281

0.015 0.010

HAT-P-10b

HAT-P-19b

0.010

0.005

0.005

0.000 0.000

-0.005

-0.005

ETD
Our observation
Polynomial fit

ETD
Our observation
Polynomial fit

-0.010

-0.015 -0.010

-50 0 50 100 150 200 250 300 350 400 450 0 50 100 150 200 250 300

Epoch Epoch

0.015

WASP 43

0.010

0.005

0.000

-0.005

ETC
Our observation
Polynomial fit

-0.010

-0.015

0 200 400 600 800 1000 1200

Epoch

Fig. 11.6 O-C diagrams of the exoplanet systems of HAT-P-10b/ WASP-11b, HAT-P-19b, and
WASP-43b

In the future, we will monitor the exoplanet transit events by photometry using
an 85- and 60-cm telescope at Xinglong Station, NAOC, and magnetic interaction
between an extrasolar planet and its parent star using high-resolution spectra.

Acknowledgements The authors would like to thank the observing assists of Xinglong Station
for their help during our observations. This work is supported by the NSFC of No 10978010 and
11263001.

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