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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…
The heart of NGC 5253 as seen with MUSE-NFM: nitrogen enrichment through stellar chemical feedback at parsec scales
Brigitte G. A. Pruijt, Ana Monreal-Ibero, Peter M. Weilbacher +5
NGC 5253 is a nearby (D=3.6 Mpc) Blue Compact Dwarf galaxy, notable for its three massive young super star clusters (SSCs) and nitrogen enrichment. Its similarity to extreme star-f…
No Metallicity Preference in Fast Radio Burst Host Galaxies
Shotaro Yamasaki, Tetsuya Hashimoto, Haruka Kusakabe +1
Fast radio bursts (FRBs) are millisecond-duration extragalactic radio transients of unknown origin, and studying their host galaxies could offer clues to constrain progenitor model…
RIDEN pilot survey: broad-band selection of candidate quasars with extended Lyman- nebulae using CLAUDS-HSC-SSP-DUNES joint data
Rhythm Shimakawa, Satoshi Kikuta, Haruka Kusakabe +5
The Vera C. Rubin Observatory will conduct the Legacy Survey of Space and Time (LSST), delivering deep, multi-band () imaging data across 18,000 square degrees over the nex…
EMPRESS. XV. A New Determination of the Primordial Helium Abundance Suggesting a Moderately Low Value
Hiroto Yanagisawa, Masami Ouchi, Akinori Matsumoto +18
We present a new constraint on the primordial helium abundance, , based on Subaru observations. A major source of uncertainty in previous determination…
Quasar Negative Feedback to Surrounding Galaxies Probed with Ly Emitters and Continuum-Selected Galaxies
Yuta Suzuki, Yoshiki Matsuoka, Satoshi Kikuta +3
We report on the statistical analysis of quasar photoevaporation at by comparing the density of surrounding Ly Emitters (LAEs) and continuum-selected galaxies, based…
Comprehensive JWST+ALMA Study on the Extended Ly Emitters, Himiko and CR7 at : Blue Major Merger Systems in Stark Contrast to Submillimeter Galaxies
Tomokazu Kiyota, Masami Ouchi, Yi Xu +14
We present various properties of two bright extended Ly objects, Himiko and CR7, at thoroughly investigated with JWST/NIRCam photometry, NIRSpec-IFU spectroscopy, and AL…