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A close look at the black hole masses and hot dusty toruses of the first quasars with MIRI-MRS
Sarah E. I. Bosman, Javier Ãlvarez-Márquez, Frederick B. Davies +29
The presence of supermassive black holes (SMBHs, ) at remains a puzzle. While their existence appears to require exotic formation or growth proce…
Quasar lifetime measurements from extended Ly nebulae at
Dominika ÄurovÄÃková, Anna-Christina Eilers, Romain A. Meyer +7
The existence of billion-solar-mass black holes hosted in luminous quasars within the first gigayear of cosmic history poses a challenge to our understanding of supermassive black…
How similar are narrow-line Seyfert 1 galaxies and high-z type 1 AGN?
M. Berton, E. Järvelä, A. Tortosa +1
The recent observations of highly accreting supermassive black holes (SMBH) at very high redshift (4) with the James Webb Space Telescope (JWST) allowed us to shed light for the…
(SHERRY) JCMT-SCUBA2 High Redshift Bright Quasar Survey -- II: the environment of z~6 quasars in sub-millimeter band
Qiong Li, Ran Wang, Xiaohui Fan +14
The formation of the first supermassive black holes is expected to have occurred in some most pronounced matter and galaxy overdensities in the early universe. We have conducted a…
The Identification of Two JWST/NIRCam-Dark Starburst Galaxies at with ALMA
Fengwu Sun, Jinyi Yang, Feige Wang +20
We analyze two dusty star-forming galaxies at . These galaxies are selected from the ASPIRE survey, a JWST Cycle-1 medium and ALMA Cycle-9 large program targeting 25 quasars…
Optical and near-infrared spectroscopy of quasars at : public data release and composite spectrum
Silvia Onorato, Joseph F. Hennawi, Jan-Torge Schindler +18
We present optical and near-infrared (NIR) spectroscopic observations for a sample of quasars at with absolute magnitudes at à in the range $-28.82…