Multi-wavelength study of a hyperluminous X-ray source near NGC 6099: a strong IMBH candidate

Yi-Chi Chang, Roberto Soria, Albert K. H. Kong +3

We report on the intriguing properties of a variable X-ray source projected at the outskirts of the elliptical galaxy NGC 6099 ($d\approx 139$ Mpc). If truly located near NGC 6099…