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George Zhou

@georgezhouastro.bsky.social
488 followers 155 following 27 posts

Astronomer at the University of Southern Queensland. Searching for young planets | He/Him | georgezhouastro.com

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George Zhou @georgezhouastro.bsky.social · 09/04/2026
We are looking for two new PhD students to join our group at the University of Southern Queensland to work on exoplanet demographics and atmospheres. See AAS ad below. aas.org/jobregister/...
aas.org
PhD Positions in Exoplanets | American Astronomical Society
The Exoplanet group at University of Southern Queensland Centre for Astrophysics is inviting candidates for two fully funded PhD scholarships (3 years).
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George Zhou @georgezhouastro.bsky.social · 05/04/2026
Artemis II from our 0.8m at Mt Kent, more than half way to the moon. To track it we are pointing fairly close to the nearly full moon - reminds me of that scene in The Dish #artemis
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Benjamin Pope @benjaminpope.bsky.social · 04/03/2026
Do you already have a Masters? Do you want to do a PhD in exoplanet radial velocity surveys with me at Macquarie University in Sydney? Then have I got an ad for you!
mq.edu.au
Discovering exoplanets with machine learning
Develop a machine-learned model of stellar spectra and instrumental quirks, and use it to discover exoplanets in radial velocity data.
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Shashank Dholakia @astroshashank.bsky.social · 23/07/2025
Everyone go check out Ryan's paper on one of the coolest star systems in the galaxy (not biased) Also I was glad to contribute to this work in an artistic and scientific scope by creating this false color composite image! 🔭🧪
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George Zhou @georgezhouastro.bsky.social · 04/07/2025
Here's I3/ATLAS from the 0.8m at Mt Kent as of 1 hr ago. The clip is a 50-min sequence.
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George Zhou @georgezhouastro.bsky.social · 04/07/2025
UniSQ PhD student Emma Nabbie has a cool paper about a Kepler system showing more than 24 hr of TTVs! They show that the system can be explained by a mutually inclined (15deg) non transiting interior planet at 2:1 resonance! See paper! www.nature.com/articles/s41...
nature.com
A high mutual inclination system around KOI-134 revealed by transit timing variations - Nature Astronomy
Using Kepler, this study identifies a compact multiplanetary system that is not flat, where gravitational interactions cause its planets’ periods to change by nearly a day per cycle and their orbital ...
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Jiayin Dong @jdong.bsky.social · 12/02/2025
Phil Armitage, Dan Tamayo @astrodan.bsky.social, and I will host a workshop April 22-25 at CCA @flatironinstitute.org in New York on methods and applications of ML for planetary dynamics and exoplanet population inference. Express your interest in attending by 3/3/25: forms.gle/zgzkUDCs8Uzz...
forms.gle
Expression of interest for Machine Learning in Planetary System Dynamics
Please fill out this form to express your interest in attending the Machine Learning in Planetary System Dynamics workshop to be held at the Center for Computational Astrophysics, Flatiron Institute i...
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Benjamin Pope @benjaminpope.bsky.social · 07/02/2025
I'm looking for a two year postdoc to work with me at Macquarie University building an Astrostatistics Research Group! We're interested in diverse applicants with previous experience in applying stats/AI/ML in astronomy, especially in relation to exoplanets/stellar astrophysics/instrumentation.
linkedin.com
Macquarie University hiring Postdoctoral Research Associate in North Ryde, New South Wales, Australia | LinkedIn
Posted 2:06:48 AM. PRIMARY DETAIL Salary Circa $106,089 to $113,697 + 17% superannuationNorth Ryde location; Hybrid, 2…See this and similar jobs on LinkedIn.
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George Zhou @georgezhouastro.bsky.social · 22/01/2025
The tail of comet G3 is extraordinary! It was already visually stunning to me in dark skies, but in photographs there is so much detail in its striations and bands - the poor comet has been stripped apart. Taken over farmland in southern Queensland as thunderstorms rolled by. 50mm f2.2 36x10s 800D
Comet G3 ATLAS in dark skies over farm land in southern Queensland. The tail stretched 10s of degrees into the dark sky, showing structure including bands and striations
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George Zhou @georgezhouastro.bsky.social · 21/01/2025
Go work with Ben at Macquarie! A great opportunity to join one of the best research groups in Aus, and be part of the growing exoplanet community here!
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Benjamin Pope @benjaminpope.bsky.social · 21/01/2025
PhD positions in exoplanets: - with @georgezhouastro.bsky.social at the University of Southern Queensland bsky.app/profile/geor... - with me at Macquarie in Sydney bsky.app/profile/frin... Others - reply in thread?
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George Zhou @georgezhouastro.bsky.social · 20/01/2025
Come join the exoplanets team at UniSQ in Australia. Our team is seeking multiple PhD positions to understand the formation and evolution of planetary systems, involving ongoing programs on JWST, HST, and VLT. See AAS advert. Applications before March 07. aas.org/jobregister/...
aas.org
PhD Positions in Exoplanet Atmospheres and Demographics | American Astronomical Society
The Exoplanet group at University of Southern Queensland is inviting candidates for two fully funded PhD scholarships (3 years). Successful candidate will work with Dr George Zhou and Dr Chelsea Huang...
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George Zhou @georgezhouastro.bsky.social · 19/01/2025
Comet G3 is getting exciting! Here it is from my back porch overlooking Toowoomba just an hour after sunset. 110mm 26x4s
Comet G3 ATLAS over with broad tail, taken from my backyard over Toowoomba
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George Zhou @georgezhouastro.bsky.social · 17/01/2025
I love comets - there are very few things visible to the naked eye that come and go in the night sky. Comet G3 low in the horizon soon after sunset, only 11deg from the sun. Hoping it will remain bright for a week or more.
Comet G3 ATLAS soon after sunset, low over Toowoomba
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Shishir Dholakia @astroshishir.bsky.social · 28/10/2024
My new paper is out today on searching for stellar companions with pulsation timing in TESS photometry! arxiv.org/abs/2410.19729 Paper thread below ⬇️
A graph showing a purple line resembling a sine wave, with a label at the top saying "Alpha Pictoris Phase modulations"
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Shishir Dholakia @astroshishir.bsky.social · 22/10/2024
Venus, Comet A3 (Tsuchinshan-ATLAS), the Milky Way, and Zodiacal light (if you can spot it) all in one shot! Taken at Mount Kent observatory 🪐🔭
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George Zhou @georgezhouastro.bsky.social · 21/10/2024
Comet Tsuchinshan Atlas has been quite a show over the last month. Some final shots before it fades away from us. One of the best comets I’ve see for a long time.
Comet tsuchinshan-atlas was over mt kent observatory Comet tsuchinshan atlas over farmland
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George Zhou @georgezhouastro.bsky.social · 21/10/2024
We were joined by a special guest while setting up for comet photos. Joys of Queensland
Green tree frog on tracking mount
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George Zhou @georgezhouastro.bsky.social · 11/10/2024
From 27deg S, our part of Queensland is not well know for its Aurora displays
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Shashank Dholakia @astroshashank.bsky.social · 07/10/2024
My first PhD paper is on arxiv today! Rotating planets are slightly wider at their equator compared to the poles. Saturn in our Solar System (below, minus the rings), is about 10% oblate! Can we detect this shape difference in transits from JWST? (1/N) arxiv.org/abs/2410.03449
arxiv.org
A General, Differentiable Transit Model for Ellipsoidal Occulters: Derivation, Application, and Forecast of Planetary Oblateness and Obliquity Constraints with JWST
Increasingly precise space-based photometry uncovers higher-order effects in transits, eclipses and phase curves which can be used to characterize exoplanets in novel ways. The subtle signature induce...
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George Zhou @georgezhouastro.bsky.social · 30/09/2024
The tail of Comet Tsuchinshan-Atlas stretching dozen degrees, amazing in dark skies :) With @astroshishir.bsky.social
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George Zhou @georgezhouastro.bsky.social · 30/09/2024
The long tail of Comet Tsuchinshan-Atlas stretched over Toowoomba 70mm
Comet Tsuchinshan Atlas, looking out from toowoomba
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George Zhou @georgezhouastro.bsky.social · 26/09/2024
Tsuchinshan-ATLAS growing a nice tail now. Still difficult to see without binoculars, so low to the horizon before sunrise.
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George Zhou @georgezhouastro.bsky.social · 22/09/2024
Getting up at 4am to see Comet Tsuchinshan-ATLAS rising over the Toowoomba range
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Benjamin Pope @benjaminpope.bsky.social · 07/09/2024
To kick off the group, we're recruiting a 2-year postdoc and have an international open PhD scholarship, plus domestic PhD students. We're looking for people with strong experience & interest in stats, especially connecting differentiable physics models, HMC, GPs, NNs, and SVI.
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George Zhou @georgezhouastro.bsky.social · 30/07/2024
Excited about @sydneyvach.bsky.social 's discovery of a 60 million year old planet system in the Theia 116 association. arxiv.org/pdf/2407.19680
arxiv.org
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ARC Tracker @arc-tracker.bsky.social · 21/03/2024
🚨🚨🚨 IT’S DONE! ❗️The ARC Review Response Bill just passed parliament❗️ No more political interference in individual ARC grants! The ARC will get a Board, who will approve individual grants. It’s a wonderful day for Australian research!
Screenshot of the Dynamic Red listing of the Senate passing the ARC Review Response Bill.
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Sydney Vach @sydneyvach.bsky.social · 07/03/2024
My first PhD paper on "The occurrence of small, short-period planets younger than 200 Myr with TESS" has been accepted to AJ and is now available on arXiv! I'll also be presenting a poster on the paper at #ExSSV (607.02)! arxiv.org/abs/2403.03261
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George Zhou @georgezhouastro.bsky.social · 07/03/2024
Highlighting new paper by UniSQ PhD student Sydney Vach! She computed the occurrence rate of planets <200 Myr with TESS. arxiv.org/abs/2403.03261
Planet radius frequency for young planets
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George Zhou @georgezhouastro.bsky.social · 29/02/2024
Hello from Toowoomba, Queensland! When I’m not pretending to put AO on our local telescopes with laser pointers for photoops, I’m enjoying the company of two fur babies and one skin baby.
Telescope with laser towards the skyCat cuddles with dog
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