AstroMonnier

@astromonnier.bsky.social

John Monnier, Professor of Astronomy, U. of Michigan Favorite Things: Imaging Stars & Exoplanets with Interferometry Developer: MIRC-X, MYSTIC, STARI 2014 Michelson Investigator Prize; 2019 AAS Joseph Weber Award http://monnier.us Opinions my own.

Working on my first AAS "iPoster"... I hadn't realized the presenting screens are much smaller than a typical physical poster and so not sure this is really an upgrade for most people. What am I missing?

Happy to announce a paper 20+ years in the making: arxiv.org/abs/2512.06066 In a huge group effort with new data from VLA, ATCA, Swift, Chandra, Keck aperture masking, and Keck adaptive optics, we report a "shocking" result about colliding wind WR112. Enjoy! Let me know if you have any questions!

Revealing the accelerating wind in the inner region of the colliding-wind binary WR 112

Colliding winds in massive binaries generate X-ray-bright shocks, synchrotron radio emission, and sometimes even dusty "pinwheel" spirals. We report the first X-ray detections of the dusty WC+O binary...

arxiv.org

When I was a grad student, we dreamed of imaging nova (and supernova) explosions with our then-new infrared interferometers. And while we are still waiting for a Milky Way SUPERnova, we CAN now see novae go boom using CHARA with instruments built at U. Michigan! news.umich.edu/seeing-stell...

Seeing stellar explosions in high definition

An international team of astronomers, including researchers from the University of Michigan, has captured unprecedented images of two stellar explosions—known as novae—within days of their eruption.

news.umich.edu

Its much harder to help my kids with homework post-covid with no textbooks. Can’t help but wonder if the move to online resources is hurting learning across the board, but especially middle and high school.

For those also waiting, I just got a late NSF-ATI rejection today. The letter says only 10% success rate, notably lower than historical practice. With MRI shutdown for next year, I suspect ATI (the only other NSF instrumentation programs) will be overwhelmed!

Spent time to visit Copernicus in old Krakow. He worked at The Jagiellonian University in Krakow, the 4th oldest University in Europe, where they started out only teaching 3 disciplines: Law, Medicine, and Astronomy.

John in front of Copernicus statue in Krakow

Reasonable NSF budget cut: * Choose to support only one Extremely Large Telescope Project Unreasonable NSF budget cut: * Choose to support only one of the two essential LIGO Gravitational Wave Interferometer detector sites.

Potentially legit reasons to withdraw tax-exempt status for Universities: * increasing student tuition faster than inflation * paying U Presidents >$1M/yr Not legitimate reasons: * defending student and faculty academic freedom * pursuing DEI activities legally allowed by state and federal laws