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arXiv 2301.09275astro-ph.GA
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ALMA透镜星系团巡天:X射线探测到的活动星系核的毫米星系团性质

ALMA Lensing Cluster Survey: Properties of Millimeter Galaxies Hosting X-ray Detected Active Galactic Nuclei

Ryosuke Uematsu, Yoshihiro Ueda, Kotaro Kohno, Satoshi Yamada, Yoshiki Toba, Seiji Fujimoto, Bunyo Hatsukade, Hideki Umehata, Daniel Espada, Fengwu Sun, Georgio… 展开作者

Ryosuke Uematsu, Yoshihiro Ueda, Kotaro Kohno, Satoshi Yamada, Yoshiki Toba, Seiji Fujimoto, Bunyo Hatsukade, Hideki Umehata, Daniel Espada, Fengwu Sun, Georgios E. Magdis, Vasily Kokorev, Yiping Ao

摘要:

本文报道了由ALMA透镜星系团巡天(ALCS)X射线探测到的活动星系核(AGN)所在的毫米星系的多波长特性。ALCS是一个广泛的调查,充分研究透镜集团与ALMA,覆盖面积为133弧分$^2$超过33个集群与1.2毫米的通量密度极限的${\sim}$ 60 $\mathrm{μJy}$($1σ$)。利用钱德拉的存档数据,我们确定在$z=$ 1.06,2.09,和2.84在ALCS安全检测到的180毫米源(其中155个是钱德拉的覆盖范围内)的活动星系核。X射线谱分析表明,两个活动星系核没有明显的吸收($\log N_{\mathrm{H}}/\mathrm{cm}^{-2} < 23$),而另一个活动星系核有中等吸收的迹象($\log N_{\mathrm{H}}/\mathrm{cm}^{-2}\sim 23.5$)。我们还进行了光谱能量分布(SED)建模的X射线毫米测光。我们发现我们的X射线活动星系核样品显示出高的质量吸积率(${\sim}10^{\text{44--45}}\,\mathrm{erg\ s^{-1}}$的本征0.5- 8 keV X射线光度)和恒星形成率(${\gtrsim}100\,M_{\odot}\,\mathrm{yr}^{-1}$)。这表明,ALMA和钱德拉的广域调查可以选择性地探测高红移宇宙中星系和超大质量黑洞(SMBH)的强烈增长。

英文摘要:

We report the multi-wavelength properties of millimeter galaxies hosting X-ray detected active galactic nuclei (AGNs) from the ALMA Lensing Cluster Survey (ALCS). ALCS is an extensive survey of well-studied lensing clusters with ALMA, covering an area of 133 arcmin$^2$ over 33 clusters with a 1.2 mm flux-density limit of ${\sim}$60 $\mathrm{μJy}$ ($1σ$). Utilizing the archival data of Chandra, we identify three AGNs at $z=$1.06, 2.09, and 2.84 among the 180 millimeter sources securely detected in the ALCS (of which 155 are inside the coverage of Chandra). The X-ray spectral analysis shows that two AGNs are not significantly absorbed ($\log N_{\mathrm{H}}/\mathrm{cm}^{-2} < 23$), while the other shows signs of moderate absorption ($\log N_{\mathrm{H}}/\mathrm{cm}^{-2}\sim 23.5$). We also perform spectral energy distribution (SED) modelling of X-ray to millimeter photometry. We find that our X-ray AGN sample shows both high mass accretion rates (intrinsic 0.5--8 keV X-ray luminosities of ${\sim}10^{\text{44--45}}\,\mathrm{erg\ s^{-1}}$) and star-formation rates (${\gtrsim}100\,M_{\odot}\,\mathrm{yr}^{-1}$). This demonstrates that a wide-area survey with ALMA and Chandra can selectively detect intense growth of both galaxies and supermassive black holes (SMBHs) in the high-redshift universe.

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