论文标题
来自种子起源的变异性（DAVOS）的矮人AGN：Zwicky瞬态设施的宽线矮人AGN的光学变异性
Dwarf AGNs from Variability for the Origins of Seeds (DAVOS): Optical Variability of Broad-line Dwarf AGNs from the Zwicky Transient Facility
论文作者
论文摘要
我们使用Zwicky瞬态瞬态设施G波段光线曲线研究了候选低质量（矮人ANG SEYFERT）样品的光学变异性。我们的样本来自文献中报道的矮星系中的宽线AGN，单位病毒黑洞（BH）质量为$ M _ {\ rm {bh}} \ sim 10^{4} $ - $ 10^{4} $ - $ 10^{8} {8} {8} {8} \ m _ {\ m _ {\ odot} $。我们测量了光学变异性的特征``damping'''''''''''''{\ rm {drw}} $，除此之外，功率频谱密度平trattens是79个候选候选低质量AGN的最终样本，具有高质量的光曲线。我们的结果提供了对$ M _ {\ rm {bh}}} - τ_ {\ rm {drw}} $的关系的进一步确认。 2022年以内的1σ$协议，在关系中增加了78个新的低质量AGN。该协议表明，这些AGN的病毒BH质量估计通常是合理的。 We expect that the optical light curve of an accreting intermediate-mass black hole (IMBH) to vary with a rest-frame damping timescale of $\sim$ tens of hours, which could enable detection and direct mass estimation of accreting IMBHs in wide-field time-domain imaging surveys with sufficient cadence like with the Vera C. Rubin Observatory.
We study the optical variability of a sample of candidate low-mass (dwarf ang Seyfert) active galactic nuclei (AGNs) using Zwicky Transient Facility g-band light curves. Our sample is compiled from broad-line AGNs in dwarf galaxies reported in the literature with single-epoch virial black hole (BH) masses in the range $M_{\rm{BH}} \sim 10^{4}$--$10^{8}\ M_{\odot}$. We measure the characteristic ``damping'' timescale of the optical variability $τ_{\rm{DRW}}$, beyond which the power spectral density flattens, of a final sample of 79 candidate low-mass AGNs with high-quality light curves. Our results provide further confirmation of the $M_{\rm{BH}} - τ_{\rm{DRW}}$ relation from Burke et al. 2022 within $1σ$ agreement, adding 78 new low-mass AGNs to the relation. The agreement suggests that the virial BH mass estimates for these AGNs are generally reasonable. We expect that the optical light curve of an accreting intermediate-mass black hole (IMBH) to vary with a rest-frame damping timescale of $\sim$ tens of hours, which could enable detection and direct mass estimation of accreting IMBHs in wide-field time-domain imaging surveys with sufficient cadence like with the Vera C. Rubin Observatory.
