Universal relations for compact stars with exotic degrees of freedom Anil Kumar, Manoj Kumar Ghosh, Pratik Thakur, Vivek Baruah Thapa, Kamal Krishna Nath and Monika Sinha Eur. Phys. J. C, 84 7 (2024) 692 Published online: 13 July 2024 DOI: 10.1140/epjc/s10052-024-13066-0