VISUAL ARCHIVE / IMAGE STORY
Gravity Breaks the Partnership
The same encounter can increase one star’s orbital energy and decrease the other’s.

The moment gravity breaks the bond. Two close binary stars passing near Sagittarius A*, their trajectories separating as one falls into a tight orbit and the other is flung outward. Scientific visualization; the orbital paths are illustrative.
THE OBSERVATION
What we can actually see.
A binary can be separated when the black hole’s differential gravitational influence overcomes the pair’s binding. This need not shred either star itself. Exact trajectories depend on the incoming binary, its orientation, and the encounter distance.
THE ILLUSTRATION
What the artwork imagines.
The composition visualizes this idea: The same encounter can increase one star’s orbital energy and decrease the other’s. The moment gravity breaks the bond. Two close binary stars passing near Sagittarius A*, their trajectories separating as one falls into a tight orbit and the other is flung outward. Scientific visualization; the orbital paths are illustrative.
FROM THE ILLUSTRATED ARTICLE
The story that inspired it.
The article follows S5-HVS1’s measured motion back toward the Galactic Center and introduces the Hills mechanism. It asks how one disrupted partnership could leave both a runaway star and a tightly bound companion without requiring either star to be swallowed. This frame focuses on the same encounter can increase one star’s orbital energy and decrease the other’s.
Read The Black Hole That Tore Two Stars Apart and Sent One Into Eternal ExileCHECK THE RECORD
The image interprets the research below. Follow the original work for the measurements and limits behind the scene.
Research record: doi.org/10.1093/mnras/stz3081 Research record: doi.org/10.1038/331687a0 Research record: www.esa.int/Science_Exploration/Space_Science/Gaia/Gaia_spots_stars_flying_between_galaxies Research record: www.hq.eso.org/public/news/eso1825/ Research record: www.esa.int/Science_Exploration/Space_Science/Gaia/Five_fascinating_Gaia_revelations_about_the_Milky_WayOTHER IMAGE STORIES
Keep looking.
EXPLORE IN 3D / MAP G-01
Follow a star around Sagittarius A*
Follow an S2-inspired orbit and experiment with a released probe near Sagittarius A*. These teaching paths illustrate gravity; they do not reconstruct the original S5-HVS1 binary encounter.
Open Sagittarius A* map
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