Gas and Stars in the Teacup Quasar Looking with the 6-m Telescope

New results on the radio-quiet type 2 quasar, known as the Teacup galaxy (SDSSJ1430+1339), based on the long-slit and 3D spectroscopic data obtained at the Russian 6-m telescope, are presented. The ionized gas giant nebula, which extends up to r = 56 kpc in the [O III] emission line, was mapped with the scanning Fabry-Perot interferometer. The direct estimation of the emission line ratios confirmed that the giant nebula is ionized by the AGN. Stars in the inner r < 5 kpc are significantly younger than the outer host galaxy and have a solar metallicity. The central starburst age (similar to 1 Gyr) agrees with possible ages for the galactic merger events and the previous episode of the quasar outflow produced two symmetric arcs visible in the [O III] emission at the distances r = 50-55 kpc. The ionized gas velocity field can be fitted by the model of a circular rotating disk significantly inclined or even polar to the stellar host galaxy.

Automated summary

New results on the Teacup galaxy (SDSSJ1430+1339), a radio-quiet type 2 quasar, were obtained from long-slit and 3D spectroscopic data obtained at the Russian 6-m telescope. The ionized gas giant nebula, extending up to r = 56 kpc in the [O III] emission line, was confirmed to be ionized by the AGN through direct emission line ratio estimation. The starburst age of the central region, around 1 Gyr, is consistent with possible galactic merger events and the quasar outflow producing symmetric arcs in the [O III] emission.