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arXiv 2302.01358astro-ph.GAastro-ph.HE
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miniJPAS巡天:X射线选择源的AGN与宿主星系协同演化

The miniJPAS survey: AGN & host galaxy co-evolution of X-ray selected sources

I. E. López, M. Brusa, S. Bonoli, F. Shankar, N. Acharya, B. Laloux, K. Dolag, A. Georgakakis, A. Lapi, C. Ramos Almeida, M. Salvato, J. Chaves-Montero, P. Coel… 展开作者

I. E. López, M. Brusa, S. Bonoli, F. Shankar, N. Acharya, B. Laloux, K. Dolag, A. Georgakakis, A. Lapi, C. Ramos Almeida, M. Salvato, J. Chaves-Montero, P. Coelho, L. A. Díaz-García, J. A. Fernández-Ontiveros, A. Hernán-Caballero, R. M. González Delgado, I. Marquez, M. Pović, R. Soria, C. Queiroz, P. T. Rahna, R. Abramo, J. Alcaniz, N. Benitez, S. Carneiro, J. Cenarro, D. Cristóbal-Hornillos, R. Dupke, A. Ederoclite, C. López-Sanjuan, A. Marín-Franch, C. Mendes de Oliveira, M. Moles, L. Sodré, K. Taylor, J. Varela, H. V. Ramió

AI总结:

本研究利用miniJPAS巡天的X射线AGN样本,通过CIGALE建模SED并估计黑洞质量,发现SFR与BHAR的联系及其能量极限解耦是形成本地黑洞质量-恒星质量标度关系的关键。

摘要:

研究表明,在本地宇宙中,超大质量黑洞质量($M_\rm{BH}$)与其宿主星系的恒星质量($M_\star$)之间存在明显的标度关系证据。它们甚至在宇宙时间尺度上表现出相似的微分项历史:恒星形成率(SFR)和黑洞吸积率(BHAR)。然而,人们对这种协同演化的清晰图景还远未理解。我们在miniJPAS天区中选择了一个红移最高达$z=2.5$的活动星系核(AGN)X射线样本。它们的X射线到红外光谱能量分布(SED)已用CIGALE进行建模,将发射约束到68个波段。对于最终包含308个星系的样本,我们推导了它们的物理性质(例如$M_\star$、$\rm{SFR}$、$\rm{SFH}$和$L_\rm{AGN}$)。我们还对其中113个源组成的子样本拟合了它们的光学光谱,以估计$M_\rm{BH}$。我们根据两种辐射效率机制计算了BHAR。我们发现爱丁顿比率($λ$)及其常用代理量($L_\rm{X}$/$M_\star$)之间存在0.6 dex的差异,KS检验表明它们来自不同的分布。我们的源在$M_\rm{BH}$-$M_\star$关系上表现出相当大的弥散,这可以解释$λ$与其代理量之间的差异。我们还建模了三种演化情景,以恢复$z=0$处的积分性质。利用SFR和BHAR,我们展示了$M_\rm{BH}$-$M_\star$之间弥散的显著减小。对于最后一种情景,我们考虑SFH和AGN吸积的简单能量预算,得到了与本地宇宙相似的关系。我们的研究覆盖天空中约1平方度,并且对光度偏差敏感。尽管如此,我们表明,对于明亮源,SFR与BHAR之间的联系,以及它们基于能量极限的解耦,是导致本地$M_\rm{BH}$-$M_\star$标度关系的关键。

英文摘要:

Studies indicate strong evidence of a scaling relation in the local Universe between the supermassive black hole mass ($M_\rm{BH}$) and the stellar mass of their host galaxies ($M_\star$). They even show similar histories across cosmic times of their differential terms: star formation rate (SFR) and black hole accretion rate (BHAR). However, a clear picture of this coevolution is far from being understood. We select an X-ray sample of active galactic nuclei (AGN) up to $z=2.5$ in the miniJPAS footprint. Their X-ray to infrared spectral energy distributions (SEDs) have been modeled with CIGALE, constraining the emission to 68 bands. For a final sample of 308 galaxies, we derive their physical properties (e.g., $M_\star$, $\rm{SFR}$, $\rm{SFH}$, and $L_\rm{AGN}$). We also fit their optical spectra for a subsample of 113 sources to estimate the $M_\rm{BH}$. We calculate the BHAR depending on two radiative efficiency regimes. We find that the Eddington ratios ($λ$) and its popular proxy ($L_\rm{X}$/$M_\star$) have 0.6 dex of difference, and a KS-test indicates that they come from different distributions. Our sources exhibit a considerable scatter on the $M_\rm{BH}$-$M_\star$ relation, which can explain the difference between $λ$ and its proxy. We also model three evolution scenarios to recover the integral properties at $z=0$. Using the SFR and BHAR, we show a notable diminution in the scattering between $M_\rm{BH}$-$M_\star$. For the last scenario, we consider the SFH and a simple energy budget for the AGN accretion, obtaining a relation similar to the local Universe. Our study covers $\sim 1$ deg$^2$ in the sky and is sensitive to biases in luminosity. Nevertheless, we show that, for bright sources, the link between SFR and BHAR, and their decoupling based on an energy limit is the key that leads to the local $M_\rm{BH}$-$M_\star$ scaling relation.

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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