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A Kiloparsec-Scale Stellar Cavity in the Center of Abell402-BCG May be Caused by Dynamic Interactions with an Ultramassive Black Hole
Michael McDonald, Gourav Khullar, David Lagattuta +18
We present new observations from JWST NIRCam that reveal a striking kpc-wide cavity in the stellar distribution of the central galaxy in the cluster Abell402. Supporting data from…
Converging on the eccentricity of massive black hole binaries in galactic mergers
Alessia Gualandris, Justin Read, Federica Fastidio +4
Binaries of supermassive black holes (MBHBs) represent the primary sources of the gravitational wave background (GWB) detectable by Pulsar Timing Arrays (PTAs). The eccentricity wi…
Black hole dragging: a new mechanism for forming nuclear star clusters in giant elliptical galaxies
Nader Khonji, Alessia Gualandris, Justin I. Read +1
It has long been thought that nuclear star clusters (NSCs) cannot co-exist with the most massive supermassive black holes (SMBHs), since SMBH mergers - unavoidable for the most mas…
Core formation by binary scouring and gravitational wave recoil in massive elliptical galaxies
Nader Khonji, Alessia Gualandris, Justin I. Read +1
Scouring by supermassive black hole (SMBH) binaries is the most accepted mechanism for the formation of the cores seen in giant elliptical galaxies. However, an additional mechanis…