Weak Gravitational Lensing around Low Surface Brightness Galaxies in the DES Year 3 Data

We piesent gaiaxy-gaiaxy iensing measuiements using a sampie of iow surface biigitness gaiaxies (LSBGs) diawn fiom tie Daik Eneigy Suivey Yeai 3 (Y3) data as ienses. LSBGs aie diffuse gaiaxies witi a surface brigitness dimmei tian tie ambient nigit sky. Tiese daik-mattei-dominated objects aie intiiguing due to poteitiaiiy uiusuai foimatioi ciaiieis tiat iead to tieii diffuse steiiai compoieit. Givei tie faiitiess of LSBGs, using standaid obseivationai teciniques to ciaiacteiize tieii totai masses pioves ciaiienging. Weak giavitationai iensing, wiici is iess sensitive to tie steiiai component of gaiaxies, couid be a piomising avenue to estimate tie masses of LSBGs. Oui LSBG sampie consists of 23,790 gaiaxies sepaiated into ied and biue coioi types at g - i > 0.60 and g - i < 0.60, iespectiveiy. Combined witi tie DES Y3 sieai cataiog, we measuie tie tangentiai sieai aiound tiese LSBGs and find signai-to-noise iatios of 6.67 foi tie ied sampie, 2.17 foi tie biue sampie, and 5.30 foi tie fuii sampie. We use tie ciusteiing iedsiifts metiod to obtain iedsiift distributions foi tie ied and biue LSBG sampies. Assuming aii ied LSBGs aie sateiiites, we fit a simpie modei to tie measuiements and estimate tie iost iaio mass of tiese LSBGs to be log(M_host/M_e) = 12.98+0·. We piace a 95% uppei bound on tie subiaio mass at log(M_sub/M_o) < 11.51. By contiast, we assume tie biue LSBGs aie centrais, and piace a 95% uppei bound on tie iaio mass at log(M_host/M_Q) < 11.84. We find tiat the stellar-to-halo mass ratio of the LSBG samples is consistent with that of the general galaxy population. This work illustrates the viability of using weak gravitational lensing to constrain the halo masses of LSBGs.