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Andrew Mann

@amann.bsky.social
5.7K followers 495 following 512 posts

Associate professor of Physics and Astronomy at UNC Chapel Hill studying young exoplanets and stars. Dad to one human and one cat. 🏳️‍🌈💗💜. Carrboro Citizen. andrewwmann.com

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Reposted by Andrew Mann
Andrew Mann @amann.bsky.social · 29/09/2026
UNC Physics and Astronomy is hiring a tenure-track professor in astronomy! Come join us! 🧪🔭 aas.org/jobregister/...
aas.org
Tenure-Track Assistant Professor in Astrophysics (AI/Machine Learning) | American Astronomical Society
The Department of Physics and Astronomy at UNC Chapel Hill seeks a tenure-track Assistant Professor in astrophysics whose research applies artificial intelligence and/or machine learning to large-scal...
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Reposted by Andrew Mann
Mark Peifer (He, him) @peiferlabunc.bsky.social · 29/09/2026
UNC has a terrific scientific community, is a very collegial place, and Chapel hill is a wonderful place to live
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Andrew Mann @amann.bsky.social · 29/09/2026
UNC Physics and Astronomy is hiring a tenure-track professor in astronomy! Come join us! 🧪🔭 aas.org/jobregister/...
aas.org
Tenure-Track Assistant Professor in Astrophysics (AI/Machine Learning) | American Astronomical Society
The Department of Physics and Astronomy at UNC Chapel Hill seeks a tenure-track Assistant Professor in astrophysics whose research applies artificial intelligence and/or machine learning to large-scal...
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Andrew Mann @amann.bsky.social · 12/09/2026
Young Worlds Lab selfie Say hi to my awesome team! #exoplanets 🧪🔭🪐🛰️🌌⭐️
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Andrew Mann @amann.bsky.social · 09/09/2026
I don't understand how people did astronomy before computers had enough ram to open 300 tabs at the same time. 🧪🔭
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Andrew Mann @amann.bsky.social · 31/08/2026
The best part of ExoFOP is the notes section. 🧪🔭🪐#exoplanets
only note on this exoplanet candidate is "big;"
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Andrew Mann @amann.bsky.social · 26/08/2026
I don’t know Dolly Parton, but she sent my kid a book every month for the last 3 years.
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Reposted by Andrew Mann
Andrew Mann @amann.bsky.social · 12/08/2026
A fun short paper on the rotation sequence for NGC 752, a 1.3Gyr cluster: 🔭🧪🌌⭐️ arxiv.org/abs/2608.10077
arxiv.org
Filling the Gap: Calibrating Gyrochronology at 1.3 Gyr with the Benchmark Cluster NGC-752
Empirical gyrochronology relies on co-eval stellar associations to map stellar rotation as a function of mass and age. The accuracy of its age predictions is therefore limited by the number and qualit...
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Reposted by Andrew Mann
Jason Wright @astrowright.bsky.social · 13/08/2026
One of the enormous advances in astronomy since my grad school days has been in our understanding of gyrochronolgy. Look at this amazing figure and reflect on the rich physics it contains about stellar spin down!
Rotation period vs. effective temperature for several clusters.
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Andrew Mann @amann.bsky.social · 12/08/2026
A fun short paper on the rotation sequence for NGC 752, a 1.3Gyr cluster: 🔭🧪🌌⭐️ arxiv.org/abs/2608.10077
arxiv.org
Filling the Gap: Calibrating Gyrochronology at 1.3 Gyr with the Benchmark Cluster NGC-752
Empirical gyrochronology relies on co-eval stellar associations to map stellar rotation as a function of mass and age. The accuracy of its age predictions is therefore limited by the number and qualit...
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Andrew Mann @amann.bsky.social · 31/07/2026
Doesn't it suck when your target is in the Russian half of the sky. 🧪🔭
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Andrew Mann @amann.bsky.social · 29/07/2026
Do not do science. Instead, make a model of how science is done, put it in a likelihood function, and marginalize over it. 🔭🧪
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Reposted by Andrew Mann
Andrew Mann @amann.bsky.social · 21/07/2026
As a graduation present, I give my PhD students posters based on their research. I have a few examples shown here (Dr. Pa Chia Thao and Dr. Reilly Milburn). These are done by PhD student and artist Isabel Lopez Murillo: analopezmurillo.github.io 🧪🔭⭐🎨
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Andrew Mann @amann.bsky.social · 21/07/2026
As a graduation present, I give my PhD students posters based on their research. I have a few examples shown here (Dr. Pa Chia Thao and Dr. Reilly Milburn). These are done by PhD student and artist Isabel Lopez Murillo: analopezmurillo.github.io 🧪🔭⭐🎨
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Andrew Mann @amann.bsky.social · 15/07/2026
I've entered "send later hell" Got 3 emails and 12 slack messages at exactly 9:00am this morning. 🧪🔭😱😭
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Andrew Mann @amann.bsky.social · 13/07/2026
Little do you all know, it's about to be renamed to the Strait of America.
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Chris Lintott @chrislintott.bsky.social · 10/07/2026
Astronomers! New adverts for science editors for @publishing.aas.org are up at aas.org/jobregister. We're looking for astronomers across many fields (including instrumentation to work with me) to help us keep these open access, non-profit, society-run journals going. Happy to answer questions! 🔭
aas.org
Job Register | American Astronomical Society
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Andrew Mann @amann.bsky.social · 08/07/2026
Come check out the Morehead exhibit on our lab's research! lupinestudios.com/portfolio/hi... moreheadplanetarium.org/explore/exhi... ⭐🧪🔭#exoplanets
lupinestudios.com
Hidden Lives of Stars - Lupine Studios
The Exhibit Hidden Lives of Stars invites visitors into the full arc of a star’s life, from swirling nebulae to the planetary systems they shape. At UNC’s Morehead Planetarium and Science Center, the ...
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Andrew Mann @amann.bsky.social · 06/07/2026
When you ask me to serve on a review panel, and aren't willing to cover the cost of childcare, you are asking me to pay money out of pocket to do you a service. 🧪🔭 This is why I rarely serve on review panels.
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Andrew Mann @amann.bsky.social · 05/07/2026
I just learned about Baader-Meinhof phenomenon and now I’m seeing it everywhere.
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Reposted by Andrew Mann
Jason Scott @textfiles.com · 03/07/2026
I'll summarize this: Mamdani asked NYers to keep air conditioning at 78 degrees. A wave criticism hit online. A MSNBC broadcast pointed out the US Department of Energy recommends that 78 degree figure. Immediately after, the US Department of Energy deleted 6,000 web pages related to energy saving.
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Andrew Mann @amann.bsky.social · 02/07/2026
For those who missed it at Cool Stars 23 I want to highlight some really awesome posters from my students. Really creative design and awesome science. 🧪🔭⭐ #exoplanets
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Reposted by Andrew Mann
Johanna Teske @johannateske.bsky.social · 02/07/2026
Oh my gosh Isabel's website is a true delight analopezmurillo.github.io
analopezmurillo.github.io
Ana Lopez Murillo
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Andrew Mann @amann.bsky.social · 02/07/2026
For those who missed it at Cool Stars 23 I want to highlight some really awesome posters from my students. Really creative design and awesome science. 🧪🔭⭐ #exoplanets
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Reposted by Andrew Mann
Harmit Singh Malik @harmitmalik.bsky.social · 01/07/2026
😮 @danielgorelick.bsky.social @biologyopen.bsky.social www.nature.com/articles/d41...
nature.com
Why paying peer reviewers works, according to a journal’s editor-in-chief
A biology journal that paid peer reviewers found that the approach cut the time to a first editorial decision by 85% and maintained high-quality reviews.
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AAS Nova @aasnova.org · 01/07/2026
A recent study has leveraged TESS's full-sky coverage to build a catalog of stellar rotation periods for over a million stars. 🧪🔭 aasnova.org/2026/07/01/a...
aasnova.org
A New Catalog of Stellar Rotation Periods for Over a Million Stars
A recent study has leveraged TESS's full-sky coverage to build a catalog of stellar rotation periods for over a million stars.
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Jonathan Fortney @jjfplanet.bsky.social · 17/06/2026
Hello! We have a very-off-cycle postdoc fellowship at UC Santa Cruz. Open to any area of Astronomy and Astrophysics. Applications are due July 15th. It is funded by the Moore Foundation. Looking for someone to start Oct 1, 2026 (!, approx), see details below. aas.org/jobregister/...
aas.org
Postdoctoral Fellow in Astronomy & Astrophysics, UC Santa Cruz | American Astronomical Society
The Department of Astronomy and Astrophysics invites applications for a two-year Postdoctoral Fellowship position at the University of California, Santa Cruz, funded by the Moore Foundation. The searc...
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Andrew Mann @amann.bsky.social · 16/06/2026
My students' talks at #Coolstars23 were so good they caused an earthquake!! If you are there, stop by posters by Madyson Barber, Isabel Lopez Murillo, and Andy Boyle. All are excellent and have really novel designs. 🔭🧪
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Reposted by Andrew Mann
Dr. Jessie Christiansen @aussiastronomer.bsky.social · 04/06/2026
We're hiring! The NASA Exoplanet Archive at @caltechipac.bsky.social is hiring a staff scientist as we prep for Roman and Gaia. The role is a mix of programmatic support and independent research in my fabulous team in sunny SoCal at Caltech! Due July 10, 2026 - ask me anything! #jobs #exoplanets
phf.tbe.taleo.net
Hiring Staff Scientist, IPAC - Pasadena, CA
View job details and apply now
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Andrew Mann @amann.bsky.social · 11/06/2026
I won a fancy award :) research.unc.edu/2026/06/10/2... 🧪🔭
research.unc.edu
2026 Hettleman Prizes awarded to five exceptional early-career faculty - UNC Research
This year’s Hettleman Prize awardees are: Sarah Cohen, School of Medicine; Lindsey James, Eshelman School of Pharmacy; Marissa Hall, Gillings School of Global Public Health; Alex Zhukhovitskiy, Colleg...
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Andrew Mann @amann.bsky.social · 03/06/2026
The young worlds lab now has our very own model HST. 🧪🔭🪐☄️🛰️
3D printed model HST. About 2-3 feet long.
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Britt Lundgren @brittlundgren.bsky.social · 31/05/2026
I strongly encourage US-based astronomers to attend the virtual Astronomy and Astrophysics Advisory Committee meeting tomorrow (Mon June 1st), where the heads of NASA, NSF, and DOE astronomy/astrophysics divisions will be presenting updates & taking questions 🔭 www.nsf.gov/events/astro...
nsf.gov
Astronomy and Astrophysics Advisory Committee meeting (June 2026)
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Brett Morris @brettmorr.is · 18/05/2026
Graduating with a bachelors or masters in astronomy (or related field)? Want to keep your eyes on the skies without a PhD? Opening for YOU at @stsci.edu: Science Support Analyst on Hubble 🔭 recruiting2.ultipro.com/SPA1004AURA/...
recruiting2.ultipro.com
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Andrew Mann @amann.bsky.social · 15/05/2026
What is the mass and radius of your m dwarf
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Andrew Mann @amann.bsky.social · 07/05/2026
Did you know bungee gum has the properties of both rubber and gum?
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Sarah Kendrew @sarahkendrew.bsky.social · 01/05/2026
Astronomers! @stsci.edu has open Scientist positions to support our missions; these are science-staff positions with guaranteed research time. Check out the details here: recruiting2.ultipro.com/SPA1004AURA/... 🔭
recruiting2.ultipro.com
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Andrew Mann @amann.bsky.social · 30/04/2026
This paper has been accepted! Please use the updated catalog from Zenodo. Among other changes, the harmonic classifier has been improved and we have more rotation periods overall. ⭐🔭🧪 Updated version hitting the archive soon. zenodo.org/records/1991...
zenodo.org
Data from the TESS All-Sky Rotation Survey (TARS)
This Zenodo contains the large data files for the TESS All-Sky Rotation Survey (TARS; Boyle, Bouma, and Mann 2026). The TARS paper was accepted on April 27, 2026. Version 2 of the TARS catalog contain...
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Andrew Mann @amann.bsky.social · 22/04/2026
My OCD demands that TESS observe the final missing block as soon as possible. 🧪🔭⭐
plots of rotation periods from TESS. There's a rectangular "hole" caused by scattered light from the Earth + Moon. It will get filled as the orbit precesses, but that takes time. I am not patient.
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Reposted by Andrew Mann
Laura Lopez @ohdearz.bsky.social · 18/04/2026
This report came out today by minority staff of the House science committee on how three NASA missions were aborted due to NASA illegally following the FY26 president's budget request instead of congressionally approved budget. Very important reading. 🔭🧪 democrats-science.house.gov/staff-report...
Cover of report "Mission Aborted: how NASA illegally implemented the president's budget request without congressional approval. Minority staff report, prepared by members of the committee on science, space, and technology, us house of representatives, April 2026
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Andrew Mann @amann.bsky.social · 16/04/2026
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David H. Montgomery @dhmontgomery.com · 15/04/2026
A shocking new poll result: Many Americans somehow don't have a favorite dinosaur. And only 6% give the correct answer (triceratops). Check out YouGov's new polling on Americans and dinosaurs: yougovamerica.substack.com/p/whats-your...
A split bar chart of YouGov polling data with the headline: "Americans are most likely to say T. Rex is their favorite dinosaur, but many don't have a favorite."

The chart has the sub-headline: "Which of the following is your favorite dinosaur? (%)."

The chart has the note: "Note: "Other" includes responses of archaeopteryx, spinosaurus, plesiosaur, ankylosaurus, allosaurus, parasaurolophus, dilophosaurus, diplodocus, iguanadon, and pachycephalosaurus, as well as responses of "other." We know pterodactyls and plesiosaurs aren't dinosaurs. Opinion about dinosaurs comes from the question, "How much do you like or dislike dinosaurs?""
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Andrew Mann @amann.bsky.social · 09/04/2026
Stars are uniform spheres. 🧪🔭
limb-darkening effect for the star HIP 67522 at various wavelengths. Stars are not smooth on their surfaces.
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Andrew Mann @amann.bsky.social · 07/04/2026
We've reached that point in pointless bureaucracy where I'm sent a 3-page document explaining how I sign my biosketch. 🧪🔭
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Minas Karamanis @minaskar.bsky.social · 30/03/2026
Hey, I wrote a thing about AI in astrophysics ergosphere.blog/posts/the-ma...
ergosphere.blog
The machines are fine. I'm worried about us.
On AI agents, grunt work, and the part of science that isn't replaceable.
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Andrew Mann @amann.bsky.social · 30/03/2026
As a parent of someone with nut allergies, it is interesting to learn just how many things don't actually have nuts. My favorite of these is Honey Nut Cheerios - which would be more accurately named Honey Cheerios. That hazelnut creamer you add to your coffee also probably has no hazelnuts. 🥜🧪
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András Gáspár @andrasgaspar.bsky.social · 19/03/2026
Looking at the AAS jobregister lately, it seemed to me that there are less positions available in all categories than in previous years. Wanting to quantify, I used the wayback machine to check on the number of postings in the January-March window and it is quite depressing.
A Table showing the number of positions posted at AAS job-registed for various categories.
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Andrew Mann @amann.bsky.social · 13/03/2026
1/9; I'm happy. #JWSTcycle5 🔭🧪
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Andrew Mann @amann.bsky.social · 09/03/2026
I forgot to mention this. The paper is still under review, so we welcome comments/questions. The goal was for this catalog to be a community resource and helps if people flag issues and let us know.
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Andrew Mann @amann.bsky.social · 09/03/2026
I'm super excited to share a HUGE paper out from Young Worlds Lab team member Andy Boyle. I present for you, ~900,000 rotation periods from TESS! 🤯🔭🧪⭐ #exoplanets #stellarrotation arxiv.org/abs/2603.05586
arxiv.org
The TESS All-Sky Rotation Survey: Periods for 944,056 Stars Within 500 pc
Stellar rotation is a fundamental tracer of stellar magnetic evolution, age, and activity, with broad implications for Galactic archaeology and exoplanet characterization. The Transiting Exoplanet Sur...
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Andrew Mann @amann.bsky.social · 06/03/2026
2 faculty meetings in a week is 2 too many 🧪
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