An Empirical Approach to Selecting the First Growing Black Hole Seeds with JWST/NIRCam
An Empirical Approach to Selecting the First Growing Black Hole Seeds with JWST/NIRCam
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DOI：
10.3847/2041-8213/ac9614
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发表时间：
2022-08
期刊：
影响因子：
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通讯作者：
A. Goulding;J. Greene
中科院分区：
文献类型：
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作者：
A. Goulding;J. Greene
詹姆斯·韦伯太空望远镜（JWST）将具有探测早期低质量黑洞（BHs）的灵敏度，因为它们从“种子”转变为超大质量黑洞。在JAGUAR模拟星系目录的基础上，我们提出了一种干净的颜色选择，利用了吸积相对低质量和高吸积速率的超大质量黑洞独特的UV斜率。我们表明，那些拥有~ 106 M⊙黑洞的星系，辐射为其爱丁顿光度的bb10 - 10%，在色彩空间中与宿主恒星质量范围内的非活跃系统分离。在这里，我们使用JWST/NIRCam提出了一组3波段，2色选择框（完整性为90%；纯度为90%；平衡纯度/完整性），以确定z ~ 7-10最有希望增长的黑洞候选者。
The James Webb Space Telescope (JWST) will have the sensitivity to detect early low-mass black holes (BHs) as they transition from “seeds” to supermassive BHs. Based on the JAGUAR mock catalog of galaxies, we present a clean color selection that takes advantage of the unique UV slope of accreting supermassive BHs with a relatively low mass and high accretion rates. We show that those galaxies hosting ∼106 M ⊙ BHs radiating at >10% of their Eddington luminosity separate in color space from inactive systems for a range of host stellar masses. Here we propose a set of 3-band, 2-color selection boxes (with 90% completeness; 90% purity; balanced purity/completeness) with JWST/NIRCam to identify the most promising growing BH candidates at z ∼ 7–10.