Can Blue UV-Bright Galaxies Drive Reionization at Cosmic Dawn? An $M_rm UV=-19.6$ Galaxy with $f_rm escapprox0.85$ at $z=9.244$

Kavli Affiliate: Khee-Gan Lee | Summary:We revisit EBG-1, a gravitationally lensed galaxy at $z = 9.244$, using newly obtained deep (14 hr) JWST/NIRSpec G235M ($R sim 1000$) spectroscopy. EBG-1 is one of the bluest galaxies observed at $z > 9$. Along with its remarkably blue continuum of $β= -2.99 pm 0.15$, we find very weak […]


Continue.. Can Blue UV-Bright Galaxies Drive Reionization at Cosmic Dawn? An $M_rm UV=-19.6$ Galaxy with $f_rm escapprox0.85$ at $z=9.244$

pymatgen: 15 years of community growth, new functionality, and future prospects

Kavli Affiliate: Kristin Persson | Summary:We present a retrospective on the Python Materials Genomics (pymatgen) library, reflecting on 15 years of community growth and established best practices. The current version of pymatgen builds on its robust, open-source foundation, emphasising its collaborative nature. Over the past decade, pymatgen has thrived as one of the largest open-source […]


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Laboratory Characterization of a Ge-CCD Prototype for Future Near-Infrared Astronomical Instrumentation

Kavli Affiliate: Sven Herrmann | Summary:Germanium charge-coupled devices (Ge-CCDs) extend CCD imaging beyond the silicon cutoff and are candidate detectors for the near-infrared channel of future astronomical instruments, in particular the spectrographs of next-generation wide-field surveys. We report the laboratory characterization at Brookhaven National Laboratory (BNL) of a prototype fabricated at MIT Lincoln Laboratory. We […]


Continue.. Laboratory Characterization of a Ge-CCD Prototype for Future Near-Infrared Astronomical Instrumentation