George Zhou
@georgezhouastro.bsky.social
Astronomer at the University of Southern Queensland. Searching for young planets | He/Him | https://georgezhouastro.com/
Pinned
George Zhou
@georgezhouastro.bsky.social
· Jan 20
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...
aas.org
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/jobregister/...
Reposted by George Zhou
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!
🔭🧪
Also I was glad to contribute to this work in an artistic and scientific scope by creating this false color composite image!
🔭🧪
Exciting news! My second first-author paper is out on the arXiv today!! arxiv.org/abs/2507.14610
We present a brand new JWST image of the Apep colliding wind binary in the mid-infrared, and we study what this nebula can tell us about the THREE stars in it's centre. Read on for more... 1/?🔭🧪
We present a brand new JWST image of the Apep colliding wind binary in the mid-infrared, and we study what this nebula can tell us about the THREE stars in it's centre. Read on for more... 1/?🔭🧪
July 23, 2025 at 6:11 AM
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!
🔭🧪
Also I was glad to contribute to this work in an artistic and scientific scope by creating this false color composite image!
🔭🧪
Here's I3/ATLAS from the 0.8m at Mt Kent as of 1 hr ago. The clip is a 50-min sequence.
July 4, 2025 at 10:14 AM
Here's I3/ATLAS from the 0.8m at Mt Kent as of 1 hr ago. The clip is a 50-min sequence.
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...
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 ...
www.nature.com
July 4, 2025 at 7:01 AM
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...
Reposted by George Zhou
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/zgzkUDCs8Uzz...
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...
forms.gle
February 12, 2025 at 9:29 PM
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/zgzkUDCs8Uzz...
Reposted by George Zhou
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.
We're interested in diverse applicants with previous experience in applying stats/AI/ML in astronomy, especially in relation to exoplanets/stellar astrophysics/instrumentation.
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.
www.linkedin.com
February 7, 2025 at 6:33 AM
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.
We're interested in diverse applicants with previous experience in applying stats/AI/ML in astronomy, especially in relation to exoplanets/stellar astrophysics/instrumentation.
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
50mm f2.2 36x10s 800D
January 22, 2025 at 12:42 PM
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
50mm f2.2 36x10s 800D
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!
In addition to the astrostatistics scholarship, the general International Scholarships are now advertised at @Macquarie_Uni - come work with us on exoplanets & stars; astronomical instrumentation; and stats in physics and astronomy!
Applications close 2 March.
Applications close 2 March.
Graduate research scholarships
Take advantage of one or more of our scholarships when you undertake a graduate research degree at Macquarie University. Learn about the application process.
www.mq.edu.au
January 21, 2025 at 6:05 AM
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!
Reposted by George Zhou
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?
- 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?
January 21, 2025 at 3:30 AM
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?
- 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?
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/jobregister/...
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...
aas.org
January 20, 2025 at 6:40 AM
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/jobregister/...
Comet G3 is getting exciting! Here it is from my back porch overlooking Toowoomba just an hour after sunset.
110mm 26x4s
110mm 26x4s
January 19, 2025 at 11:33 AM
Comet G3 is getting exciting! Here it is from my back porch overlooking Toowoomba just an hour after sunset.
110mm 26x4s
110mm 26x4s
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.
January 17, 2025 at 12:02 AM
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.
Reposted by George Zhou
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 ⬇️
arxiv.org/abs/2410.19729
Paper thread below ⬇️
October 28, 2024 at 3:43 PM
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 ⬇️
arxiv.org/abs/2410.19729
Paper thread below ⬇️
Reposted by George Zhou
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 🪐🔭
October 22, 2024 at 8:26 AM
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 🪐🔭
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.
October 21, 2024 at 11:47 AM
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.
We were joined by a special guest while setting up for comet photos. Joys of Queensland
October 21, 2024 at 8:19 AM
We were joined by a special guest while setting up for comet photos. Joys of Queensland
From 27deg S, our part of Queensland is not well know for its Aurora displays
October 11, 2024 at 1:14 PM
From 27deg S, our part of Queensland is not well know for its Aurora displays
Reposted by George Zhou
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
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
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...
arxiv.org
October 7, 2024 at 6:15 AM
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
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
The tail of Comet Tsuchinshan-Atlas stretching dozen degrees, amazing in dark skies :)
With @astroshishir.bsky.social
With @astroshishir.bsky.social
September 30, 2024 at 8:23 PM
The tail of Comet Tsuchinshan-Atlas stretching dozen degrees, amazing in dark skies :)
With @astroshishir.bsky.social
With @astroshishir.bsky.social
The long tail of Comet Tsuchinshan-Atlas stretched over Toowoomba
70mm
70mm
September 30, 2024 at 10:25 AM
The long tail of Comet Tsuchinshan-Atlas stretched over Toowoomba
70mm
70mm
Tsuchinshan-ATLAS growing a nice tail now. Still difficult to see without binoculars, so low to the horizon before sunrise.
September 25, 2024 at 11:21 PM
Tsuchinshan-ATLAS growing a nice tail now. Still difficult to see without binoculars, so low to the horizon before sunrise.
Getting up at 4am to see Comet Tsuchinshan-ATLAS rising over the Toowoomba range
September 22, 2024 at 8:54 PM
Getting up at 4am to see Comet Tsuchinshan-ATLAS rising over the Toowoomba range
Reposted by George Zhou
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.
We're looking for people with strong experience & interest in stats, especially connecting differentiable physics models, HMC, GPs, NNs, and SVI.
September 7, 2024 at 11:15 AM
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.
We're looking for people with strong experience & interest in stats, especially connecting differentiable physics models, HMC, GPs, NNs, and SVI.
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/pdf/2407.19680
arxiv.org
July 30, 2024 at 1:22 AM
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/pdf/2407.19680
Reposted by George Zhou
🚨🚨🚨 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!
❗️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!
March 21, 2024 at 12:30 AM
🚨🚨🚨 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!
❗️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!
Reposted by George Zhou
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
arxiv.org/abs/2403.03261
March 7, 2024 at 3:30 AM
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
arxiv.org/abs/2403.03261