7 papers
Subaru meets JWST: A Direct Measurement of Ly Escape Fraction at with Dual Narrow-Band Imaging
Shunta Shimizu, Nobunari Kashikawa, Ryo Emori +15
We present a direct measurement of the Ly escape fraction, , for H emitters (HAEs) at in the JWST CEERS field by combining JWST/NIRCam…
Subaru High- Exploration of Low-Luminosity Quasars (SHELLQs). XXV. Large-scale environments of low-luminosity quasars at traced by Ly emitters
Junya Arita, Nobunari Kashikawa, Yoshiki Matsuoka +18
High- quasars are believed to reside in massive dark matter haloes (DMHs), suggesting that they reside in galaxy overdense regions. However, previous observations have shown a r…
Discovery of a Lyman- Emitter Protocluster: Wavelength-Dependent Environmental Effects on Galaxy Structure
Ronaldo Laishram, Yusei Koyama, Haruka Kusakabe +3
We report the discovery of a Lyman-alpha emitter (LAE) protocluster at z = 4.90 in the COSMOS field, comprising four distinct overdensity peaks spanning ~65 x 36 cMpc, with the…
Age dependence of Lyα escape fraction of Lyα emitters and their significant role in cosmic reionization
Shunta Shimizu, Nobunari Kashikawa, Satoshi Kikuta +4
We study the Ly escape fraction, of Ly emitters (LAEs) identified by Subaru/HSC narrowband imaging at , using publicly avail…
Subaru High- Exploration of Low-Luminosity Quasars (SHELLQs). XXIII. The powering mechanisms of the Ly haloes around high- quasars probed by slit spectroscopy
Hiroki Hoshi, Rikako Ishimoto, Nobunari Kashikawa +15
We present the analysis of Ly haloes around faint quasars at and . We use 20 and 162 quasars at and , taken by slit spectroscopy, and detect L…
Predicting Ly Emission from Distant Galaxies with Neural Network Architecture
Takehiro Yoshioka, Nobunari Kashikawa, Yoshihiro Takeda +7
The Ly emission line is a characteristic feature found in high- galaxies, serving as a probe of cosmic reionization. While previous works present various correlations betwee…