Titol: Observing Sagittarius A* with ALMA

Lloc: Seminari del DAA. Edifici Investigació Jeroni Muñoz, planta quarta, a Burjassot.

Dia: dimarts 14 de març de 2023. Hora: 12:00.

Resum:

Sagittarius A* is a supermassive black hole in the center of the Milky Way. With the exquisite sensitivity of ALMA we can study the event horizon-scale variability of this system with unprecedented time cadence and signal to noise ratio. I will present the recent findings of the full-Stokes Sagittarius A* light curve analysis and their relation to the observations by the Event Horizon Telescope. I will also discuss the results of the orbital motion model application to the Sagittarius A* linear polarization ALMA light curves at millimeter wavelength, and the emerging theoretical connection to the high energy flaring activity of the system.