利用XMM-Newton数据探测低光度类星体Mrk 205中的 episodic 超快外流
Detection of episodic Ultra-fast Outflows in the Low-luminosity quasar Mrk 205 using XMM-Newton data
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中文总结 AI 辅助
本研究分析XMM-Newton数据,在低光度类星体Mrk 205中发现多组分超快外流,速度约0.07c-0.1c,呈间歇性发射,并探讨其反馈效应。
中文摘要 AI 辅助
活动星系核(AGN)中的超快外流(UFOs)是速度可达0.3c的风,其质量外流率为0.01-1 $M_{\odot} yr^{-1}$,动能为$10^{42-45}$ erg/s。这些极端性质使UFOs能够携带巨大的动能,足以通过向星际介质注入能量和动量来驱动AGN反馈,从而调节宿主星系的演化和超大质量黑洞的增长。在本工作中,我们对低光度类星体Mrk 205的XMM-Newton X射线光谱进行了详细分析。我们发现了多组分超快外流的证据,由高分辨率数据中探测到的两个组分所追踪,其速度范围约为0.07c至0.1c。此外,我们在Fe K波段边缘探测到一个超快外流特征。根据我们的分析,Mrk 205表现出间歇性的风发射事件,而非持续性的风。我们进一步讨论了Mrk 205中UFOs所携带的能量是否能够对其宿主星系产生显著的反馈作用。
英文摘要
Ultra-fast outflows (UFOs) from Active Galactic Nuclei (AGN) are winds which reach velocities up to 0.3c, and show mass outflow rates of 0.01-1 $M_{\odot} yr^{-1}$ and kinetic energies of $10^{42-45}$ erg/s. Their extreme properties allow UFOs to carry substantial kinetic power, sufficient to drive AGN feedback by injecting energy and momentum into the interstellar medium, regulating the host galaxy evolution and the supermassive black hole growth. In this work, we present a detailed analysis of XMM-Newton X-ray spectra of the low-luminosity quasar Mrk205. We find evidence of multi-component ultra-fast outflows, traced by two components detected in the high-resolution data, showing velocities in the range of $\sim$0.07c to $\sim$0.1c. In addition, we marginally detected an ultra-fast outflow feature in the Fe K band. According to our analysis, Mrk 205 shows episodes of wind launches, rather than persistent winds. We further discuss whether the energy carried by the UFOs in Mrk 205 is capable of producing significant feedback on its host galaxy.
发表机构
- Instituto de Astronomía, (IA-UNAM)(天文学研究所(UNAM))
- INAF – Osservatorio di Astrofisica e Scienza dello Spazio di Bologna(博洛尼亚天文物理与空间科学研究所(INAF))
- Instituto Nacional de Astrofísica, Óptica y Electrónica(国家天文学、光学和电子学研究所)
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México(墨西哥国立自治大学核科学研究所)
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