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The X-ray view of optically selected dual AGN
Alessandra De Rosa, Cristian Vignali, Paola Severgnini +12
We present a study of optically selected dual AGN with projected separations of 3--97~kpc. Using multi-wavelength (MWL) information (optical, X-rays, mid-IR), we characterized the…
Black Hole Binary Formation in AGN Discs: From Isolation to Merger
Connar Rowan, Tjarda Boekholt, Bence Kocsis +1
Motivated by the increasing number of detections of merging black holes by LIGO-VIRGO-KAGRA, black hole (BH) binary mergers in the discs of active galactic nuclei (AGN) is investig…
Gas dynamical friction as a binary formation mechanism in AGN discs
Stanislav DeLaurentiis, Marguerite Epstein-Martin, Zoltan Haiman
In this paper, we study how gaseous dynamical friction (DF) affects the motion of fly-by stellar-mass black holes (sBHs) embedded in active galactic nucleus (AGN) discs. We perform…
Detection of stellar light from quasar host galaxies at redshifts above 6
Xuheng Ding, Masafusa Onoue, John D. Silverman +41
The detection of starlight from the host galaxies of quasars during the reionization epoch () has been elusive, even with deep HST observations. The current highest redshift q…
Report of the Topical Group on Cosmic Probes of Fundamental Physics for for Snowmass 2021
Rana X. Adhikari, Luis A. Anchordoqui, Ke Fang +118
Cosmic Probes of Fundamental Physics take two primary forms: Very high energy particles (cosmic rays, neutrinos, and gamma rays) and gravitational waves. Already today, these probe…
Self-regulation of black hole accretion via jets in early protogalaxies
Kung-Yi Su, Greg L. Bryan, Zoltán Haiman +3
The early growth of black holes (BHs) in high-redshift galaxies is likely regulated by their feedback on the surrounding gas. While radiative feedback has been extensively studied,…