We present a re-analysis of our H - and K -band photometry and light-curves for GCIRS 16SW , a regular periodic source near the Galactic center .
These data include those presented by DePoy et al .
( 5 ) ; we correct a sign error in their reduction , finding GCIRS 16SW to be an eclipsing binary with no color variations .
We find the system to be an equal mass overcontact binary ( both stars overfilling their Roche lobes ) in a circular orbit with a period P = 19.4513 days , an inclination angle i = 71 ^ { \circ } .
This confirms and strengthens the findings of Martins et al .
( 13 ) that GCIRS 16SW is an eclipsing binary composed of two \sim 50 M _ { \odot } stars , further supporting evidence of recent star formation very close to the Galactic center .
Finally , the calculated luminosity of each component is close to the Eddington luminosity , implying that the temperature of 24400 K given by Najarro et al .
( 16 ) might be overestimated for these evolved stars .