Behzad Tahmasebzadeh (University of Michigan, USA)
Abstract: The mass function of black holes (BHs) at lower masses remains poorly constrained in the local universe due to observational challenges. The occupation fraction of BHs within low-mass galaxy hosts, such as compact stellar systems (CSSs), is crucial for competing theories on supermassive BH (SMBH) formation. Stellar dynamical modeling has been successful in constraining the masses of central BHs in the cores of CSSs. This talk will address the power and limitations of our dynamical modeling approach to determine the black hole masses for CSSs in the Virgo cluster using JWST NIRSpec. We obtained JWST+NIRSpec/IFU data cubes to derive spatially resolved stellar kinematics of 18 selected CSSs in the Virgo Cluster. I will present our preliminary results from our ongoing project aimed at determining the black hole masses in these CSSs, which represents the first-ever census of CSS BHs in the Virgo galaxy cluster.
Негізгі бет Do Massive Black Holes Come in Small Packages?
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