Abstract
We report on the spectroscopic monitoring of GCIRS16SW, an Ofpe/WN9 star and LBV candidate in the central parsec of the Galaxy. SINFONI observations show strong daily spectroscopic changes in the K band. Radial velocities are derived from the HeI 2.112 um line complex and vary regularly with a period of 19.45 days, indicating that the star is most likely an eclipsing binary. Under various assumptions, we are able to derive a mass of ~ 50 Msun for each component.
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CITATION STYLE
Martins, F., Trippe, S., Paumard, T., Ott, T., Genzel, R., Rauw, G., … Abuter, R. (2006). GCIRS 16SW: A Massive Eclipsing Binary in the Galactic Center. The Astrophysical Journal, 649(2), L103–L106. https://doi.org/10.1086/508328
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