17 papers
Matrix-Driven Quartic Overhauser (QOVR) Surfaces Structural Framework: Continuity Limitations, Computer Graphics Algorithms, and Software Implementation
Hakan Üstünel
This study introduces the spatial and analytical construction of the Quartic Overhauser (QOVR) surface generation framework designed to resolve boundary alignment and localized sha…
Chemical signatures from the first stars embedded in metal-poor gas in galaxies at cosmic dawn
Clara L. Pollock, Kasper E. Heintz, Elka Rusta +15
The first generation of stars formed from pristine, neutral hydrogen gas. The most massive of these exploded as supernovae within a few million years of their birth, producing the…
JWST absorption line spectroscopy with SPURS: ISM covering fractions and kinematics in individual galaxies at
Keerthi Vasan G. C., Peter Senchyna, Charlotte A. Mason +11
We present deep rest-ultraviolet (UV) spectra of six luminous -- 9 galaxies in the Abell-2744 field taken as part of the JWST Cycle 4 Large Program SPURS. The individual gala…
NEFERTITI: Linking early galaxy formation to the assembly of the Milky Way
Ioanna Koutsouridou, Stefania Salvadori, Ãsa Skúladóttir +5
We use a new implementation of the NEFERTITI galaxy formation model, coupled to high-resolution Caterpillar dark-matter simulations of Milky Way (MW) analogues, to connec…
The Pristine HeII Emitter near GN-z11: Constraining the Mass Distribution of the First Stars
Elka Rusta, Stefania Salvadori, Roberto Maiolino +6
The properties of the first metal-free stars remain largely unknown, and so far, the only data-driven constraints on their mass distribution (IMF) come from near-field cosmology. H…
SPURS: Bursty Star Formation in an Extremely Luminous Weak Emission Line Galaxy at
Zuyi Chen, Daniel P. Stark, Charlotte A. Mason +8
JWST has revealed a population of super-luminous early galaxies with a volume density in excess of most expectations. The spectra reveal diverse properties: while some reveal stron…