Jessica Lu
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jluastro.bsky.social
Jessica Lu
@jluastro.bsky.social
Astrophysicist, Associate Professor @UCBerkeley. Interested in black holes, stars, galactic centers, astronomy instrumentation, adaptive optics.
It is being implemented as we speak. Voluntary at first (incentivized retirements/early leave) and later, layoffs. If we do nothing, we will lose half of NASA Goddard (and most likely all of NASA).
June 22, 2025 at 1:34 AM
Friend of mine owns and spouse is chef at Gris-Gris: grisgrisnola.com (not in French Quarter).
December 27, 2023 at 3:58 PM
First author, Casey Lam, put together the known population of Milky Way black holes:
August 9, 2023 at 9:18 PM
The young stars orbiting the supermassive black hole probably formed in a complex dynamical structure... not just a vanilla "ball of gas".
July 5, 2023 at 7:16 PM
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.
July 5, 2023 at 7:15 PM
This Plane 2 structure might be associated with some stars in the IRS 13 clump of stars:
July 5, 2023 at 7:14 PM
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!
July 5, 2023 at 7:13 PM
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
July 5, 2023 at 7:12 PM