Discovery of an edge-on galaxy with X-shaped bi-cone – SDSS J171359.00+333625.5
Discovery of an edge-on galaxy with X-shaped bi-cone – SDSS J171359.00+333625.5
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发现具有 X 形双锥体的边缘星系 — SDSS J171359.00 333625.5
DOI：
10.1093/mnras/stz2892
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发表时间：
2019-10
影响因子：
4.8
通讯作者：
Y. B. Yu
中科院分区：
文献类型：
--
作者：
Min Bao;Yanmei Chen;Qirong Yuan;Yong Shi;Dmitry Bizyaev;Xiaoling Yu;Qiusheng Gu;Y. B. Yu
摘要利用阿帕奇点天文台Mapping Nearby Galerkin巡天（MaNGA）的积分场单位（IFU）数据，研究了具有X形双锥外流的边侧Seyfert 2星系SDSS J171359.00+333625.5中气体和恒星成分的运动学。发现其中的气体和恒星是反向旋转的，这表明内部和外部气体之间的碰撞可能是耗散角动量的有效方式，这导致了显着的气体吸积到星系中心。在大的双锥区，[O iii] λ5007的等效宽度和类活动星系核的谱线比都很大，说明气体是被活动星系核电离的。在双锥区域的气体速度表明，电离气体相对于星系中心正在后退，这可能是流入，流出和盘旋转的联合效应。我们很可能正在目睹这样的情况：圆盘中的大量气体被有效地吸积到中心黑洞中，活动星系核驱动的星系风被沿着双锥吹出。氧的运动学，包括旋转速度和速度分散，与其他元素，如氢，氮和硫不同。由氧元素估算的自转速度比由其他元素估算的自转速度慢。其他元素的速度弥散遵循银河引力势，而氧的速度弥散则沿着银河长轴沿着保持大致恒定。为了更好地理解该物体，需要进一步的高级观察，例如冷气体或具有更高空间分辨率的IFU。
ABSTRACT Using the integral field unit (IFU) data from Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey, we study the kinematics of gas and stellar components in an edge-on Seyfert 2 galaxy, SDSS J171359.00+333625.5, with X-shaped bi-conical outflows. The gas and stars therein are found to be counter-rotating, indicating that the collision between the inner and external gas might be an effective way to dissipate the angular momentum, which leads to remarkable gas accretion into the galaxy centre. Large [O iiiλ5007 equivalent width and AGN-like line ratio in the large bi-conical region suggest that the gas is ionized by the central AGN. The gas velocity in the bi-cone region shows that ionized gas is receding relative to the galaxy centre, which could be the joint effect of inflows, outflows, and disc rotation. We are probably witnessing the case where a great amount of gas in the disc is being efficiently accreted into the central black hole, and the AGN-driven galactic winds are blown out along the bi-cone. The kinematics of oxygen, including rotation velocity and velocity dispersion, is different from other elements, like hydrogen, nitrogen, and sulphur. The rotation velocity estimated from oxygen is slower than from other elements. The velocity dispersion of other elements follows galactic gravitational potential, while the velocity dispersion of oxygen stays roughly constant along the galactic major-axis. The further advanced observations, e.g. of cold gas or with an IFU of higher spatial resolution, are required to better understand this object.
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SDSS IV MaNGA：本地宇宙中恒星形成驱动的双锥流出
影响因子：
4.9
作者：
Bizyaev Dmitry;Chen Yan Mei;Shi Yong;Riffel Rogemar A;Riffel Rogerio;Diamond Stanic Aleks;ar M;Roy Namrata
通讯作者：
Roy Namrata
影响因子：
4.8
作者：
Yifei Jin;Yan-Mei Chen;Yong Shi;C. Tremonti;M. Bershady;M. Merrifield;E. Emsellem;E. Emsellem
通讯作者：
Yifei Jin;Yan-Mei Chen;Yong Shi;C. Tremonti;M. Bershady;M. Merrifield;E. Emsellem;E. Emsellem
DOI：
10.1088/0004-637x/799/1/82
发表时间：
2014-11
期刊：
The Astrophysical Journal
影响因子：
--
作者：
G. Cresci;V. Mainieri;M. Brusa;A. Marconi;Michele Perna;F. Mannucci;E. Piconcelli;R. Maiolino;C. Feruglio;F. Fiore;A. Bongiorno;G. Lanzuisi;A. Merloni;M.Schramm;J. Silverman;F. Civano
通讯作者：
G. Cresci;V. Mainieri;M. Brusa;A. Marconi;Michele Perna;F. Mannucci;E. Piconcelli;R. Maiolino;C. Feruglio;F. Fiore;A. Bongiorno;G. Lanzuisi;A. Merloni;M.Schramm;J. Silverman;F. Civano
DOI：
10.3847/1538-4357/aaf000
发表时间：
2018-11
期刊：
The Astrophysical Journal
影响因子：
--
作者：
M. Durr'e;J. Mould
通讯作者：
M. Durr'e;J. Mould
DOI：
10.1088/0004-6256/139/3/871
发表时间：
2009-12
期刊：
The Astronomical Journal
影响因子：
--
作者：
D. Crenshaw;S. Kraemer;H. Schmitt;Yara L. Jaffé;R. Deo;N. Collins;T. C. Fischer
通讯作者：
D. Crenshaw;S. Kraemer;H. Schmitt;Yara L. Jaffé;R. Deo;N. Collins;T. C. Fischer