# From regular black holes to horizonless objects: quasi-normal modes, instabilities and spectroscopy

> Research article (Journal of Cosmology and Astroparticle Physics, 2024) · cited 32× · AI/ML

**Wikidata**: [openalex:W4390753358](https://www.wikidata.org/wiki/openalex:W4390753358)  
**Source**: https://4ort.xyz/entity/from-regular-black-holes-to-horizonless-objects-quasi-normal-modes-instabilities-and-spectroscopy