Polarimetry and astrometry of NIR flares as event horizon scale, dynamical probes for the mass of Sgr A*
Polarimetry and astrometry of NIR flares as event horizon scale, dynamical probes for the mass of Sgr A*
We present new astrometric and polarimetric observations of flares from Sgr A* obtained with GRAVITY, the near-infrared interferometer at ESO's Very Large Telescope Interferometer (VLTI), bringing the total sample of well-covered astrometric flares to four and polarimetric ones to six, where we have for two flares good coverage in both …