George Zhou - ANU

George Zhou
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George Zhou

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Earth and Planetary Astrophysics (13)
Solar and Stellar Astrophysics (5)
Cosmology and Nongalactic Astrophysics (1)
High Energy Astrophysical Phenomena (1)

Publications Authored By George Zhou

Affiliations: 1Australian National University, 2Australian National University, 3Australian National University, 4Australian National University, 5Australian National University, 6Australian National University, 7Australian National University, 8Australian National University, 9Australian National University, 10Australian National University, 11Australian National University, 12Australian National University, 13Australian National University, 14Australian National University, 15Australian National University, 16Australian National University, 17Australian National University, 18Australian National University, 19Australian National University, 20Australian National University, 21Australian National University, 22Australian National University, 23Australian National University

This paper presents the first major data release and survey description for the ANU WiFeS SuperNovA Program (AWSNAP). AWSNAP is an ongoing supernova spectroscopy campaign utilising the Wide Field Spectrograph (WiFeS) on the Australian National University (ANU) 2.3m telescope. Read More

We present Doppler tomographic analyses for the spectroscopic transits of KELT-7b and HAT-P-56b, two hot-Jupiters orbiting rapidly rotating F-dwarf host stars. These include analyses of archival TRES observations for KELT-7b, and a new TRES transit observation of HAT-P-56b. We report spin-orbit aligned geometries for KELT-7b (2. Read More

We use Kepler short cadence light curves to constrain the oblateness of planet candidates in the Kepler sample. The transits of rapidly rotating planets that are deformed in shape will lead to distortions in the ingress and egress of their light curves. We report the first tentative detection of an oblate planet outside of the solar system, measuring an oblateness of $0. Read More

The discovery of giant planets orbiting close to their host stars was one of the most unexpected results of early exoplanetary science. Astronomers have since found that a significant fraction of these 'Hot Jupiters' move on orbits substantially misaligned with the rotation axis of their host star. We recently reported the measurement of the spin-orbit misalignment for WASP-79b by using data from the 3. Read More

WASP-19b is one of the most irradiated hot-Jupiters known. Its secondary eclipse is the deepest of all transiting planets, and has been measured in multiple optical and infrared bands. We obtained a z band eclipse observation, with measured depth of 0. Read More

We report the detection of asymmetry in the transit light curves of the 110-day period companion to KOI-368, a rapidly rotating A-dwarf. The significant distortion in the transit light curve is attributed to spin-orbit misalignment between the transiting companion and the gravity darkened host star. Our analysis was based on 11 Long Cadence and 2 Short Cadence transits of KOI-368. Read More