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

被引：4

作者：

Moiseev, Alexei V. ^{[1
]}

Ikhsanova, Alina I. ^{[2
]}

机构：

[1] Russian Acad Sci, Special Astrophys Observ, Nizhnii Arkhyz 369167, Russia

[2] Univ Padua, Dipartimento Fis & Astron G Galilei, Vicolo Osservatorio 3, I-35122 Padua, Italy

来源：

UNIVERSE | 2023年 / 9卷 / 02期

关键词：

interstellar medium (ISM); nebulae; galaxies; individual; teacup; HOST GALAXIES; CLASSIFICATION; CLOUDS; SHELL; I;

D O I：

10.3390/universe9020066

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页数：11

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