Astronomy and Astrophysics
About Astronomy and Astrophysics
Astronomy & Astrophysics (A&A) is a peer-reviewed journal that publishes original research in astronomy and astrophysics.
- Website: https://www.aanda.org/
News
19 Jan 2024
Academia Sinica
A recent paper published in the journal Astronomy & Astrophysics presents new images from the 2018 data that reveal a familiar ring the same size as observed in 2017. This bright ring surrounds a deep central depression, “the shadow of the black hole,” as predicted by general relativity. Excitingly, the peak brightness of the ring has shifted by about 30º counter clockwise compared to its position in 2017, which is consistent with our theoretical understanding of the variability of the turbulent material around black holes.
09 Mar 2020
National Astronomical Observatory of Japan (NAOJ)
Researchers found that dust encircling a young gas giant can create a “safety zone,” which keeps a large moon from falling into the planet as the system evolves.


