Non-Newtonian gravity in color-flavor locked strange stars and the 2.6 Mæ component in GW190814

We investigate the effects of non-Newtonian gravity on the properties of the color-flavor locked strange stars and constrain the parameters of the strange quark matter model using the mass of the GW190814's secondary component ( 2 . 59 +0 . 08 -0.09 M ae). We find that the allowed region in the B ef1/4f - Delta parameter space (B eff is the effective bag constant and Delta is the pairing gap) becomes larger and the minimum allowed value of Delta becomes smaller with the increasing of the non-Newtonian gravity parameter g2/mu 2. For small values of g2/mu 2, the color-flavor locked phase must be employed to support a static 2.6 M ae strange star. However, if g2/mu 2 is large enough, the maximum mass of the static strange stars made of unpaired strange quark matter could be larger than 2.6 M ae. Specifically, for the cases of a4 = 0 . 6 , 0.7, and 0.8 (a4 is the perturbative quantum chromodynamics corrections term), the turning points are g2/mu 2 = 2.15, 3.59, and 4.75 GeV-2, respectively.