Sterne, die schwarze Löcher vorbei streichen, leben länger, Fremder lebt nach ihren engen Begegnungen mit dem Tod. Survivor -Stars können Milliarden von Jahren länger als normal leben und chemische Fingerabdrücke ihrer gewalttätigen Begegnungen mit dem schwarzen Loch des Milchstays tragen.

… for a few thousand years, then things are mostly back to normal. I didn’t see anything in the story about stars lasting billions of years longer. ~~Maybe~~ it’s in the actual research article.

> The results, published Aug. 27 in The Astrophysical Journal Letters, showed that a near miss — known as a partial tidal disruption — can trigger a brilliant transformation. A survivor star may throw off ribbons of plasma, swell to many times its original size, and glow up to 10 times brighter for thousands of years.

> The show, however, does not last. Surviving stars gradually shrink and begin to masquerade as ordinary stars. Their only giveaway is chemical: The violence dredges up helium and nitrogen from the core to the surface.

edit:

https://iopscience.iop.org/article/10.3847/2041-8213/adefde

> 3.3. Long-term Stellar Evolution

> Our three remnants disrupted from a 1 M⊙ progenitor lose varying degrees of mass during the TDE and consequently spend the rest of their lives burning less intensely. This lowered rate of fusion resulting from their mass loss allows them to live billions of years longer than their progenitor. While the 1 M⊙ progenitor ages off of the MS around an age of 11 Gyr (roughly 6 Gyr after disruption), the 1Mβ1 remnant’s life is extended by an additional 3 Gyr; by 19 Gyr for the 1Mβ1.5 remnant; and by 140 Gyr for the 1Mβ2 remnant, as seen in Figure 2. Conversely, each remnant has a shorter lifetime than its mass-equivalent star, which is consistent with the remnant having the core density of a higher-mass star.