Simulating intermediate black hole mass measurements for a sample of galaxies with nuclear star clusters using ELT/HARMONI high spatial resolution integral-field stellar kinematics
Dieu D. Nguyen, Michele Cappellari, Hai N. Ngo, Tinh Q. T. Le, Tuan N. Le, Khue N. H. Ho, An K. Nguyen, Phong T. On, Huy G. Tong, Niranjan Thatte, Miguel Pereira-Santaella
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35 pages, 19 figures, 9 tables, accepted to The Astronomical Journal (AJ)
Understanding the demographics of intermediate-mass black holes (IMBHs, $M_{\rm BH} \approx 10^2-10^5$ M$_\odot$) in low-mass galaxies is key to constraining black hole seed formation models, but detecting them is challenging due to their small gravitational sphere of influence (SOI). The upcoming ELT/HARMONI instrument, with its high angular resolution, offers a promising solution. We present simulations assessing HARMONI's ability to measure IMBH masses in nuclear star clusters (NSCs) of nearby dwarf galaxies. We selected a sample of 44 candidates within 10 Mpc. For two representative targets, NGC 300 and NGC 3115 dw01, we generated mock HARMONI integral-field data cubes using realistic inputs derived from \hst\ imaging, stellar population models, and Jeans Anisotropic Models (JAM), assuming IMBH masses up to 1\% of the NSC mass. We simulated observations across six NIR gratings at 10 mas resolution. Analyzing the mock data with standard kinematic extraction (pPXF) and JAM models in a Bayesian framework, we demonstrate that HARMONI can resolve the IMBH SOI and accurately recover masses down to $\approx 0.5\%$ of the NSC mass within feasible exposure times. These results highlight HARMONI's potential to revolutionize IMBH studies.
Extending the simulations of intermediate-mass black hole mass measurements to Virgo Cluster using ELT/HARMONI high resolution integral-field stellar kinematics
Simulating supermassive black hole mass measurements for a sample of ultra massive galaxies using ELT/HARMONI high spatial resolution integral-field stellar kinematics
Extending the Frontier of Spatially-Resolved Supermassive Black Hole Mass Measurements to at $1\lesssim z\lesssim2$: Simulations with ELT/MICADO High-Resolution Mass Models and HARMONI Integral-Field Stellar Kinematics
University of Michigan（密歇根大学）；University of Oxford（牛津大学）；University of Science, Vietnam National University in Ho Chi Minh City（越南国立大学胡志明市自然科学大学）；Instituto de Física Fundamental, CSIC（西班牙国家科学研究委员会基础物理研究所）
Probing the Variation of the Inner Surface-Brightness Profile of Nuclear Star Clusters on the Intermediate-Mass Black Hole Mass Measurements Using Mock Observations of ELT/MICADO and HARMONI
International University, Vietnam National University in Ho Chi Minh City（越南国立大学胡志明市国际大学）；University of Michigan（密歇根大学）；University of Science, Vietnam National University in Ho Chi Minh City（越南国立大学胡志明市科学大学）
HARMONI@ELT: instrument design, performance, and science capabilities
LAM, Aix Marseille Univ., CNRS, CNES（LAM，艾克斯-马赛大学，法国国家科学研究中心，法国国家空间研究中心）；Univ. of Edinburgh（爱丁堡大学）；UK Astronomy Technology Centre, STFC（英国天体技术中心，英国科学与技术设施委员会）；Univ. of Durham（杜伦大学）；Instituto de Astrofísica de Canarias（加那利群岛天体物理研究所）；University of Oxford（牛津大学）；Centre de Recherche en Astrophysique de Lyon（里昂天体物理研究中心）；Centro de Astrobiología (CAB), CSIC-INTA（天体生物学中心（CAB），西班牙国家技术研究与发展总署/西班牙高等科学研究理事会）；University of Michigan（密歇根大学）；Institut de Planétologie et d’Astrophysique de Grenoble（格勒诺布尔行星学与天体物理学研究所）
HARMONI view of the host galaxies of active galactic nuclei around cosmic noon: Resolved stellar morpho-kinematics and the M$_{BH}$-$σ_{\star}$ relation
On the Viability of Determining Galaxy Properties from Observations I: Star Formation Rates and Kinematics
通过对NewHorizon宇宙学流体动力学模拟中的一对合并的$z\sim2$星系进行后处理，利用LCARS（Light from Cloudy Added to RAMSES）将模拟星系的物理性质编码为H $α$发射线，探讨观测结果与发射星系物理性质的关系.通过对这些数据立方体进行模拟观测和分析，我们确定了银河系的哪些物理特性可以用欧洲极大望远镜（ELT）上的HARMONI摄谱仪恢复。我们能够估计星系的恒星形成率和动力学质量的合理程度的准确性，在一个因素的$1.81$和$1.38$的真实值。星系的运动学结构也恢复在模拟观测。此外，我们能够恢复径向配置文件的速度色散，因此能够计算如何动态比变化的函数，从星系中心的距离。最后，我们表明，当计算星系尺度的动力学比并不总是提供一个可靠的措施，星系的稳定性对重力或作为一个指标的一个小合并。
