Quark stars in massive gravity might be candidates for the mass gap objects J. Sedaghat, B. Eslam Panah, R. Moradi, S. M. Zebarjad and G. H. Bordbar Eur. Phys. J. C, 84 2 (2024) 171 Published online: 19 February 2024 DOI: 10.1140/epjc/s10052-024-12505-2