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astro-ph.GA2025
Discovery of an X-ray Luminous Radio-Loud Quasar at : A Possible Transitional Super-Eddington Phase
Sakiko Obuchi, Kohei Ichikawa, Satoshi Yamada +11
We report the multiwavelength properties of eFEDS J084222.9+001000 (hereafter ID830), a quasar at , identified as the most X-ray luminous radio-loud quasar in the eROSITA…
astro-ph.GA2025
Association of cold gas, massive galaxies, and AGNs in a filamentary protocluster traced by triple narrow-band imaging
Kazuki Daikuhara, Tadayuki Kodama, Haruka Kusakabe +13
We investigate galaxy populations in the HS1700+64 protocluster at , characterized by two prominent linear filaments traced by spatially extended Ly blobs. We conducted…
astro-ph.GA2025
Green Flash: Residual Emissions Enshrouded in Low-mass Balmer-break Galaxies at
Kosuke Takahashi, Takahiro Morishita, Tadayuki Kodama +3
Recent James-Webb Space Telescope (JWST) observations have discovered galaxies that are already passively evolving at , \,Gyr after the Big Bang. Remarkably, some of…