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Measurements of the z ~ 6 Intergalactic Medium Optical Depth and Transmission Spikes Using a New z > 6.3 Quasar Sample
Jinyi Yang, Feige Wang, Xiaohui Fan +9
We report new measurements of the intergalactic medium (IGM) Ly and Ly effective optical depth at , using a new sample of quasar sightlines including 32 quasars at…
TARDIS Paper II: Synergistic Density Reconstruction from Lyman-alpha Forest and Spectroscopic Galaxy Surveys with Applications to Protoclusters and the Cosmic Web
Benjamin Horowitz, Benjamin Zhang, Khee-Gan Lee +1
In this work we expand upon the Tomographic Absorption Reconstruction and Density Inference Scheme (TARDIS) in order to include multiple tracers while reconstructing matter density…
Dual supermassive black holes at close separation revealed by the Hyper Suprime-Cam Subaru Strategic Program
John D. Silverman, Shenli Tang, Khee-Gan Lee +30
The unique combination of superb spatial resolution, wide-area coverage, and deep depth of the optical imaging from the Hyper Suprime-Cam (HSC) Subaru Strategic Program is utilized…
Probing Feedback via IGM tomography and Ly forest with Subaru PFS, TMT/ELT, and JWST
Kentaro Nagamine, Ikkoh Shimizu, Katsumi Fujita +8
In preparation for the IGM tomography study by Subaru Prime Focus Spectrograph (PFS) survey and other large future telescopes such as TMT/ELT/GMT, we present the results of our pil…
Survey of Gravitationally lensed Objects in HSC Imaging (SuGOHI) -- VII. Discovery and Confirmation of Three Strongly Lensed Quasars
Anton T. Jaelani, Cristian E. Rusu, Issha Kayo +13
We present spectroscopic confirmation of three new two-image gravitationally lensed quasars, compiled from existing strong lens and X-ray catalogs. Images of HSC J091843.2702200…
Effective Opacity of the Intergalactic Medium from Galaxy Spectra Analysis
Jose S. Monzon, J. Xavier Prochaska, Khee-Gan Lee +1
We measure the effective opacity () of the Intergalactic Medium (IGM) from the composite spectra of 281 Lyman-Break Galaxies (LBGs) in the redshift range $2 \lesssim z \le…