Estimation of mass of MAXI J1659-152 during its very first outburst with   TCAF fits
  We determine mass of MAXI J1659-152 using two different methods, viz: constant Normalization parameter point of view while fitting with TCAF, $M_{BH}$-$\chi^2_{red}$ variation from TCAF fits. We find a mass range of $4.06-7.93~M_\odot$ with a most probable value at $6 \pm 2 M_\odot$. 
Aslam Ali Molla, S.K. Chakrabarti, D. Debnath, S. Mondal, A. Jana, D.   Chatterjee
astro-ph.HE