From the 2 of 15 linked papers with an AI index.
15 papers
The Mysterious Case of Iron in XMPs: Anomalous High log(Fe/O) Observed in Extremely Metal-Poor Galaxies HSCJ1631+4426 and SDSSJ0811+4730
Aaron Myszka, Themiya Nanayakkara, Karl Glazebrook +8
We present integral field spectroscopic observations of two local extremely metal-poor galaxies (XMPs), HSCJ1631+4426 and SDSSJ0811+4730, obtained with the Keck Cosmic Web Imager (…
A Compact Proto-group at : A Massive Galaxy Caught in Formation
Ronaldo Laishram, Yusei Koyama, Fengwu Sun +11
The authors report the discovery of a compact galaxy proto‑group at redshift ~5, confirming six members spectroscopically and measuring their stellar masses, star‑formation propert…
Lyman-alpha haloes in the aftermath of reionisation
Daniil Smirnov, Lutz Wisotzki, Tanya Urrutia +8
We present a comparative study of Ly haloes (LAHs) around low-luminosity (L erg s) Ly-emitting galaxies (LAEs) at very high redshif…
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…
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…
First statistical constraints on galactic scale outflows properties traced by their extended Mg II emission with MUSE
Ismael Pessa, Lutz Wisotzki, Tanya Urrutia +7
Galaxies evolve within vast gaseous halos that fuel star formation and carry signatures of feedback-driven outflows. Deep integral field data have enabled the study of MgII halos,…