The effect of local and large-scale environments on nuclear activity and star formation
The effect of local and large-scale environments on nuclear activity and star formation
复制标题
局部和大尺度环境对核活动和恒星形成的影响
DOI：
10.1051/0004-6361/201628232
复制
发表时间：
2016-05
影响因子：
6.5
通讯作者：
Yang X.
中科院分区：
文献类型：
--
作者：
Argudo-Fern;ez M.;Shen S.;Sabater J.;Duarte Puertas S.;Verley S.;Yang X.
上下文。活动星系核（AGN）是从恒星形成盘向被动球状星系转变的主要驱动力之一，然而，大尺度环境与一对一相互作用在触发不同类型的AGN中的作用仍然不确定。我们提出了孤立星系和物理束缚的孤立对中核活动盛行率的统计研究。目标。为了本研究的目的，我们考虑了光学和无线电选择的核活动类型。我们的目的是评估一对一相互作用对AGN比例的影响及其大尺度环境的作用。方法。为了研究一对一相互作用对孤立星系对中AGN比例的影响，我们将这些AGN与在相同隔离标准下均匀选择的孤立星系样本进行了比较。我们通过比较孤立系统与单个星系和星系对的控制样本来检验大尺度环境的影响。我们使用潮汐强度参数来量化局部和大尺度环境的影响。结果。总的来说，我们发现在考虑的样品中光学AGN的患病率没有差异。对于大质量星系，孤立星系中光学AGN的比例略高于对照样本。此外，在高质量的孤立星系中，被动物质的比例比在任何其他样本中都要小。一般来说，光核活度与局部环境无关。另一方面，我们发现了无线电AGN受到当地环境强烈影响的证据。结论。光学AGN现象与冷气体吸积有关，而射电AGN现象与热气体吸积有关。在这种情况下，在孤立的系统中有更多的冷气体，为中央光学AGN提供燃料。我们的研究结果与长期演化的冷气体吸积是光学AGN的主要驱动因素，而热气体吸积和一对一的相互作用是无线电AGN活动的主要驱动因素的情况一致。
Context. Active galactic nuclei (AGN) are one of the main drivers for the transition from star-forming disk to passive spheroidal galaxies, however, the role of large-scale environment versus one-on-one interactions in triggering different types of AGN is still uncertain. We present a statistical study of the prevalence of the nuclear activity in isolated galaxies and physically bound isolated pairs. Aims. For the purpose of this study we considered optically and radio selected nuclear activity types. We aim to assess the effect of one-on-one interaction on the fraction of AGN and the role of their large-scale environment. Methods. To study the effect of one-on-one interaction on the fraction of AGN in isolated galaxy pairs, we compare these AGN with a sample of isolated galaxies homogeneously selected under the same isolation criterion. We examine the effect of the large-scale environment by comparing isolated systems with control samples of single galaxies and galaxy pairs. We use the tidal strength parameter to quantify the effects of local and large-scale environments. Results. In general we found no difference in the prevalence of optical AGN for the considered samples. For massive galaxies, the fraction of optical AGN in isolated galaxies is slightly higher than that in the control samples. Also, the fraction of passives in high mass isolated galaxies is smaller than in any other sample. Generally, there is no dependence on optical nuclear activity with local environment. On the other hand, we found evidence that radio AGN are strongly affected by the local environment. Conclusions. The optical AGN phenomenon is related to cold gas accretion, while radio AGN are related to hot gas accretion. In this context, there is more cold gas, fuelling the central optical AGN, in isolated systems. Our results are in agreement with a scenario where cold gas accretion by secular evolution is the main driver of optical AGN, while hot gas accretion and one-on-one interactions are the main drivers of radio AGN activity.
登录
查看更多内容
DOI：
10.1111/j.1365-2966.2011.20197.x
发表时间：
2011-03
影响因子：
4.8
作者：
Danny Pan;M. Vogeley;F. Hoyle;Yun-Young Choi;Changbom Park
通讯作者：
Danny Pan;M. Vogeley;F. Hoyle;Yun-Young Choi;Changbom Park
DOI：
10.1111/j.1365-2966.2004.08117.x
发表时间：
2004-02
影响因子：
4.8
作者：
G. Kauffmann;S. White;T. Heckman;B. Ménard;J. Brinchmann;S. Charlot;C. Tremonti;J. Brinkmann
通讯作者：
G. Kauffmann;S. White;T. Heckman;B. Ménard;J. Brinchmann;S. Charlot;C. Tremonti;J. Brinkmann
影响因子：
6
作者：
D. M. Alexander;R. Hickox
通讯作者：
D. M. Alexander;R. Hickox
DOI：
10.1111/j.1365-2966.2010.17727.x
发表时间：
2010-09
影响因子：
4.8
作者：
R. Grutzbauch;C. Conselice;J. Varela;K. Bundy;M. Cooper;R. Skibba;C. Willmer
通讯作者：
R. Grutzbauch;C. Conselice;J. Varela;K. Bundy;M. Cooper;R. Skibba;C. Willmer
DOI：
10.1111/j.1745-3933.2011.01168.x
发表时间：
2011-10
影响因子：
--
作者：
R. Calvi;B. Poggianti;G. Fasano;B. Vulcani
通讯作者：
R. Calvi;B. Poggianti;G. Fasano;B. Vulcani