Thanks! That’s interesting. Tidal bars can start with relatively large lengths, while isolated bars grow from short to long over time. I guess that would match the curly R dependence you found. It would be interesting to see the distributions of both the numerator and the denominator.
Do you also find that the absolute values of the pattern speed depend on the environment?
This workshop aims to accelerate progress in unraveling the nature of the Gaia phase spiral and its implications for galactic dynamics by fostering the in-depth exploration and collaboration essential to tackling this grand challenge.
bit.ly/4m7KDDK
@msemczuk.bsky.social
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Analogues of the Milky Way-Sagittarius interaction in the TNG50: effect on the Milky Way. Marcin Semczuk et. al. https://arxiv.org/abs/2508.00690
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Spiral arms across stellar populations in simulations via the local dimension method. J. Ardèvol et. al. https://arxiv.org/abs/2507.15473
Face-on surface density distribution, for five snapshots of both our double-barred galaxies, showing their evolution from single barred to double barred. The three right panels show different relative orientations between the inner and outer bars. When they align, like in the rightmost panel for DB2, the galaxy may appear as single barred.
"A new tidal scenario for double bar formation", Semczuk et al. This is Fig. 2: @oxfordacademic.bsky.social @royalastrosoc.bsky.social
At NAM 2025 in Durham @nam25-durham.bsky.social , Marcin Semczuk is speaking on "Bars in TNG50 - slowdown and formation of double bars". Marcin has published in #MNRAS Letters: academic.oup.com/mnrasl/artic...
Cool work!
Job market with increasingly growing competitiveness means “publish or perish” but every time harder than the previous year. Having the time for “quality over quantity” is the privilege of the few with secure funding. More balance needed between numbers of new PhDs and new faculty jobs
Dear All! The registration is now open for our workshop on the Gaia Phase Spiral in the Lorentz Center (4-8 August) 🌀🔭
www.lorentzcenter.nl/winding-unwi...
Is it creeper proof?
How do the double bars form? It appears that tidal interactions may sometimes play a role. Read more in our now-accepted MNRAS Letter 🔭https://doi.org/10.1093/mnrasl/slad175
Phew, I thought I was banned
🤨🥜🥜🥜
TIL Mojo Jojo was an astronomer
What's new in the 2023 edition?