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Jessica Lu
@jluastro.bsky.social
Astrophysicist, Associate Professor @UCBerkeley. Interested in black holes, stars, galactic centers, astronomy instrumentation, adaptive optics.
225 followers60 following11 posts
JLjluastro.bsky.social

Friend of mine owns and spouse is chef at Gris-Gris: grisgrisnola.com (not in French Quarter).

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JLjluastro.bsky.social

First author, Casey Lam, put together the known population of Milky Way black holes:

Galactic black hole population.
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JLjluastro.bsky.social

The young stars orbiting the supermassive black hole probably formed in a complex dynamical structure... not just a vanilla "ball of gas".

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JLjluastro.bsky.social

And the structure looks asymmetric. That means there are more stars on one side of the orbital plane than another. This makes us think it is not a plane so much as a stream of stars perhaps recently disrupted.

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JLjluastro.bsky.social

This Plane 2 structure might be associated with some stars in the IRS 13 clump of stars:

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JLjluastro.bsky.social

We have known for sometime that the young stars' orbits aren't randomly distributed. There is a preferred disk of young stars that contains 20-30% of the young stars in the region. But, in our new paper, we have found a second structure!

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JLjluastro.bsky.social

In Jia, Xu, Lu, et al. we present a study of the dynamics of young stars orbiting around the supermassive black hole at the Galactic Center: https://iopscience.iop.org/article/10.3847/1538-4357/acb939/pdf

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Profile banner
JL
Jessica Lu
@jluastro.bsky.social
Astrophysicist, Associate Professor @UCBerkeley. Interested in black holes, stars, galactic centers, astronomy instrumentation, adaptive optics.
225 followers60 following11 posts