GCIRS16SW: a massive eclipsing binary in the Galactic Center

2); (2) Univ. California; (3) Univ. Liege; (4) ESO); F. Eisenhauer (1); F. Martins (1); G. Rauw (3); H. Maness (2); R. Abuter (4) ((1) MPE; R. Genzel (1

arxiv: astro-ph/0608215 · v1 · pith:NS2FTRNVnew · submitted 2006-08-10 · 🌌 astro-ph

GCIRS16SW: a massive eclipsing binary in the Galactic Center

F. Martins (1) , S. Trippe (1) , T. Paumard (1) , T. Ott (1) , R. Genzel (1 , 2) , G. Rauw (3) , F. Eisenhauer (1)

show 6 more authors

S. Gillessen (1) H. Maness (2) R. Abuter (4) ((1) MPE (2) Univ. California (3) Univ. Liege (4) ESO)

This is my paper

classification 🌌 astro-ph

keywords binaryeclipsinggcirs16swspectroscopicstarableassumptionsband

0 comments

read the original 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.

This paper has not been read by Pith yet.

GCIRS16SW: a massive eclipsing binary in the Galactic Center

discussion (0)