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arXiv 2510.06752astro-ph.GA
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射电强活动星系核3C~59中的温暖吸收体出流

Warm absorber outflows in radio-loud active galactic nucleus 3C~59

Nanjing University(南京大学);Tsinghua University(清华大学);Institute of Space Sciences (ICE, CSIC)(空间科学研究所(IEE,CSIC));Institut d'Estudis Espacials de Catalunya (IEEC)(加泰罗尼亚空间研究学院(IEEC));University of Science and Technology of China(中国科学技术大学);Xiamen University(厦门大学);Leiden University(莱顿大学);SRON Netherlands Institute for Space Research(荷兰空间研究所);Shanghai Astronomical Observatory, Chinese Academy of Science(中国科学院上海天文台);Space Telescope Science Institute(太空望远镜科学研究所)

Yijun Wang, Tao Wang, Junjie Mao, Yerong Xu, Zhicheng He, Zheng Zhou, Chen Li, Yongquan Xue, Jiayi Chen, Fangzheng Shi, Missagh Mehdipour

AI总结:

研究通过光谱分析发现3C~59中的温暖吸收体出流由辐射压驱动,与射电安静AGN的出流机制相似,喷流作用较小。

摘要:

在活动星系核(AGNs)中,喷流和离子化出流都被认为在影响宿主星系的恒星形成和演化中起重要作用,但它们之间的关系仍然不明确。作为初步研究,我们通过系统考虑可能影响拟合结果的各种因素,对一个射电强(RL)AGN 3C~59(z=0.1096)进行了详细的光谱分析,从而建立了后续研究中更大样本的通用光谱拟合策略。3C~59是一个罕见的目标,可以同时研究喷流和温暖吸收体(WAs),后者是一种离子化出流类型。基于德克萨斯大学(DESI)、伽勒溪(GALEX)和XMM-Newton探测的近红外(NIR)到硬X射线波段的多波段数据,我们使用SPEX代码构建广谱连续模型,并使用PION代码进行光电离建模,以约束3C~59中WAs的物理参数。我们发现两种WAs的电离参数分别为log[ξ/(erg cm s⁻¹)] = 2.65±0.10和1.65±0.11,其出流速度分别为v_out = -528±163和-228±121 km s⁻¹。这些WAs位于外环和窄(发射线)区域之间,其正的v_out-ξ关系可以由辐射压驱动机制解释。我们发现这些物理属性的估算受到不同光谱拟合策略的影响,例如是否包含NIR到紫外数据、光谱能量范围的选择或光谱能量分布的组成。基于相同的拟合策略,这项工作对射电强AGN(3C 59)和射电安静AGN(NGC 3227)的出流驱动机制进行了比较研究,表明它们的WAs出流驱动机制相似,而喷流在这一过程中作用微乎其微。

英文摘要:

Both jets and ionized outflows in active galactic nuclei (AGNs) are thought to play important roles in affecting the star formation and evolution of host galaxies, but their relationship is still unclear. As a pilot study, we performed a detailed spectral analysis for a radio-loud (RL) AGN 3C~59 ($z=0.1096$) by systematically considering various factors that may affect the fitting results, and thereby establishing a general spectral fitting strategy for subsequent research with larger sample. 3C~59 is one rare target for simultaneously studying jets and warm absorbers (WAs) that is one type of ionized outflows. Based on the multi-wavelength data from near-infrared (NIR) to hard X-ray bands detected by DESI, GALEX, and XMM-Newton, we used SPEX code to build broadband continuum models and perform photoionization modeling with PION code to constrain the physical parameters of WAs in 3C~59. We found two WAs with ionization parameter of $\log [ξ/(\rm{erg\ cm\ s}^{-1})] = 2.65^{+0.10}_{-0.09}$ and $1.65\pm 0.11$, respectively, and their outflowing velocities are $v_{\rm out} = -528^{+163}_{-222}\ \rm{km\ s}^{-1}$ and $-228^{+121}_{-122}\ \rm{km\ s}^{-1}$, respectively. These WAs are located between outer torus and narrow (emission-)line region, and their positive $v_{\rm out}$-$ξ$ relation can be explained by the radiation-pressure-driven mechanism. We found that the estimations of these physical properties are affected by the different spectral fitting strategies, such as the inclusion of NIR to ultra-violet data, the choice of energy range of spectrum, or the composition of the spectral energy distribution. Based on the same fitting strategy, this work presents a comparative study of outflow driven mechanism between a RL AGN (3C 59) and a radio-quiet AGN (NGC 3227), which suggests a similar driven mechanism of their WA outflows and a negligible role of jets in this process.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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