We present newly discovered dwarf galaxy candidates in deep and wide-field images of NGC 1291 obtained with the Korea Microlensing Telescope Network .
We identify 15 dwarf galaxy candidates by visual inspection .
Using imaging simulations , we demonstrate that the completeness rate of our detection is greater than 70 % for the central surface brightness value of \mu _ { 0 ,R } \lesssim 26 mag arcsec ^ { -2 } and for magnitudes M _ { R } \lesssim - 10 mag .
The structural and photometric properties of the dwarf galaxy candidates appear to be broadly consistent with those of ordinary dwarf galaxies in nearby groups and clusters , with \mu _ { 0 ,R } \sim 22.5 to 26.5 mag arcsec ^ { -2 } and effective radii of 200 pc to 1 kpc .
The dwarf galaxy candidates show a concentration towards NGC 1291 and tend to be redder the closer they are to the center , possibly indicating that they are associated with NGC 1291 .
The dwarf candidates presented in this paper appear to be bluer than those in denser environments , revealing that the quenching of star formation in dwarf galaxies is susceptible to the environment , while the morphology shaping is not .