This image shows a galaxy visible from Earth. The red rings illuminate where the stars of Heracles reside inside our galaxy.
Danny Horta-Darrington (Liverpool John Moores University), ESA / Gaia and SDSS
We had a dramatic childhood in our own galaxy. Astronomers have unveiled a new chapter in his memoir with the discovery of a possible “fossil galaxy” hidden near his heart.
The proposed fossil galaxy is named Heracles for the Greek hero. It was probably tangled with the galaxy about 10 billion years ago, when our galaxy was a baby.
Sloan Digital Sky Survey “Sloan Digital Sky Survey” Sloan Digital Sky Survey “Sloan Digital Sky Survey” Sloan Digital Sky Survey “Sloan Digital Sky Survey” on Thursday. SDSS was involved in this research.
This illustration shows how Heracles sits close to the heart of the galaxy if from above. The yellow dot represents our sun.
Danny Horta-Darrington (Liverpool John Moores University), NASA / JPL-Caltech and SDSS
A research team led by Danny Horta, a graduate student at Liverpool John Moores University (LJMU), has published a paper on Hercules this week in the monthly instructions of the Royal Astronomical Society Journal.
To find Heracles, the team found stars that did not match the galaxy. “These stars are so different that they could only come from another galaxy. By studying in detail, we can find the exact location and history of this fossil galaxy,” Horta said.
We have seen evidence of dramatic galactic mergers in the galaxy’s deep past. Recent studies have seen a time when our galaxy made a dwarf galaxy called Gaia-Enceladus a success.
Hercules has been particularly elusive as the signs of its existence have been obscured by international dust clouds. The research team used the SDSS Apache Point Observatory Galactic Evolution Experiment (APOGEE) to look into the vessel using infrared light. “To find a fossil galaxy like this, we had to look at the detailed chemical composition and motion of thousands of stars,” said Ricardo Schiavane, co-author of the study and LJMU astrophysicist.
The galaxy cannot pass through its galaxy-colliding pathways. a Milky-Andromeda Galaxy Crash The future is hiding billions of years. It’s hard to be a galaxy. Sometimes you are a galaxy, Eating them. Sometimes you are Hercules, who swallows.
