Discovery of a 36 Billion Solar Mass Black Hole in the Cosmic Horseshoe Gravitational Lens
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bookofjoe
9mo ago· 69 min readenNews
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Summary
The article discusses the discovery of a supermassive black hole (SMBH) with a mass of 36 billion solar masses at the center of the Cosmic Horseshoe gravitational lens. It highlights the co-evolution of SMBHs and their host galaxies, emphasizing the traditional reliance on nearby galaxies for SMBH mass measurements and the limitations this imposes on studying SMBHs across cosmic time.
Key quotes
· 3 pulledSupermassive black holes (SMBHs) are found at the centre of every massive galaxy, with their masses tightly connected to their host galaxies through a co-evolution over cosmic time.
For massive ellipticals, the SMBH mass (|$M_\text{BH}$|) strongly correlates with the host central stellar velocity dispersion (|$\sigma _e$|), via the |$M_\text{BH}\!-\!\sigma _e$| relation.
SMBH mass measurements have traditionally relied on central stellar dynamics in nearby galaxies (|$z < 0.1$|), limiting our ability to explore the SMBHs across cosmic time.
ABSTRACT. Supermassive black holes (SMBHs) are found at the centre of every massive galaxy, with their masses tightly connected to their host galaxies thro
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