The origin of (90) Antiope from component-resolved near-infrared spectroscopy

► Observations of the double system (90) Antiope using SPIFFI, an integral field unit at VLT/ESO. ► Photometric extraction algorithm and data error estimate to derive a NIR spectrum of each body. ► No significant absorption features and slopes of the NIR spectra similar to C- or Cb-type asteroids. ► Constant flux ratio indicates that both components are similar, within a 1-sigma variation of 7%. ► Both components were most likely formed at the same time and from the same material.