Deciphering Lyman-$α$ Emission Deep into the Epoch of Reionisation

Kavli Affiliate: Debora Sijacki | First 5 Authors: Callum Witten, Nicolas Laporte, Sergio Martin-Alvarez, Debora Sijacki, Yuxuan Yuan | Summary: A major event in cosmic history is the genesis of the first starlight in our Universe, ending the ”Dark Ages”. During this epoch, the earliest luminous sources were enshrouded in neutral and pristine gas, which […]


Continue.. Deciphering Lyman-$α$ Emission Deep into the Epoch of Reionisation

Deciphering Lyman-$α$ Emission Deep into the Epoch of Reionisation

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Callum Witten, Nicolas Laporte, Sergio Martin-Alvarez, Debora Sijacki, Yuxuan Yuan | Summary: During the epoch of reionisation the first galaxies were enshrouded in pristine neutral gas, with one of the brightest emission lines in star-forming galaxies, Lyman-$alpha$ (Ly$alpha$), expected to remain undetected until the Universe became ionised. […]


Continue.. Deciphering Lyman-$α$ Emission Deep into the Epoch of Reionisation

First results from the JWST Early Release Science Program Q3D: The Warm Ionized Gas Outflow in z ~ 1.6 Quasar XID 2028 and its Impact on the Host Galaxy

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Sylvain Veilleux, Weizhe Liu, Andrey Vayner, Dominika Wylezalek, David S. N. Rupke | Summary: Quasar feedback may regulate the growth of supermassive black holes, quench coeval star formation, and impact galaxy morphology and the circumgalactic medium. However, direct evidence for quasar feedback in action at the epoch […]


Continue.. First results from the JWST Early Release Science Program Q3D: The Warm Ionized Gas Outflow in z ~ 1.6 Quasar XID 2028 and its Impact on the Host Galaxy

A recently quenched galaxy 700 million years after the Big Bang

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Tobias J. Looser, Francesco D’Eugenio, Roberto Maiolino, Joris Witstok, Lester Sandles | Summary: Local and low-redshift ($z$<$3$) galaxies are known to broadly follow a bimodal distribution: actively star forming galaxies with relatively stable star-formation rates, and passive systems. These two populations are connected by galaxies in relatively […]


Continue.. A recently quenched galaxy 700 million years after the Big Bang

The JWST Advanced Deep Extragalactic Survey: Discovery of an Extreme Galaxy Overdensity at $z = 5.4$ with JWST/NIRCam in GOODS-S

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Jakob M. Helton, Fengwu Sun, Charity Woodrum, Kevin N. Hainline, Christopher N. A. Willmer | Summary: We report the discovery of an extreme galaxy overdensity at $z = 5.4$ in the GOODS-S field using JWST/NIRCam imaging from JADES and JEMS alongside JWST/NIRCam wide field slitless spectroscopy from […]


Continue.. The JWST Advanced Deep Extragalactic Survey: Discovery of an Extreme Galaxy Overdensity at $z = 5.4$ with JWST/NIRCam in GOODS-S

Carbonaceous dust grains seen in the first billion years of cosmic time

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Joris Witstok, Irene Shivaei, Renske Smit, Roberto Maiolino, Stefano Carniani | Summary: Large dust reservoirs (up to $sim 10^8 , mathrm{M_odot}$) have been detected in galaxies out to redshift $z sim 8$, when the age of the universe was only about 600 Myr. Generating significant amounts of […]


Continue.. Carbonaceous dust grains seen in the first billion years of cosmic time

Stochastic gravitational wave background from supernovae in massive scalar-tensor gravity

Kavli Affiliate: Ulrich Sperhake | First 5 Authors: Roxana Rosca-Mead, Michalis Agathos, Christopher J. Moore, Ulrich Sperhake, | Summary: In massive scalar-tensor gravity, core-collapse supernovae are strong sources of scalar-polarized gravitational waves. These can be detectable out to large distance. The dispersive nature of the propagation of waves in the massive scalar field mean the […]


Continue.. Stochastic gravitational wave background from supernovae in massive scalar-tensor gravity

GA-NIFS: Black hole and host galaxy properties of two z$simeq$6.8 quasars from the NIRSpec IFU

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Madeline A. Marshall, Michele Perna, Chris J. Willott, Roberto Maiolino, Jan Scholtz | Summary: Integral Field Spectroscopy (IFS) with JWST NIRSpec will significantly improve our understanding of the first quasars, by providing spatially resolved, infrared spectroscopic capabilities which cover key rest-frame optical emission lines that have been […]


Continue.. GA-NIFS: Black hole and host galaxy properties of two z$simeq$6.8 quasars from the NIRSpec IFU

JADES: Probing interstellar medium conditions at $zsim5.5-9.5$ with ultra-deep JWST/NIRSpec spectroscopy

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Alex J. Cameron, Aayush Saxena, Andrew J. Bunker, Francesco D’Eugenio, Stefano Carniani | Summary: We present emission line ratios from a sample of 26 Lyman break galaxies from $zsim5.5-9.5$ with $-17.0<M_{1500}<-20.4$, measured from ultra-deep JWST/NIRSpec MSA spectroscopy from JADES. We use 28 hour deep PRISM/CLEAR and 7 […]


Continue.. JADES: Probing interstellar medium conditions at $zsim5.5-9.5$ with ultra-deep JWST/NIRSpec spectroscopy