Two Modes of LyC Escape From Bursty Star Formation: Implications for [C II] Deficits and the Sources of Reionization

Kavli Affiliate: Martin Haehnelt | First 5 Authors: Harley Katz, Aayush Saxena, Joki Rosdahl, Taysun Kimm, Jeremy Blaizot | Summary: We use the SPHINX$^{20}$ cosmological radiation hydrodynamics simulation to study how Lyman Continuum (LyC) photons escape from galaxies and the observational signatures of this escape. We define two classes of LyC leaker: Bursty Leakers and […]


Continue.. Two Modes of LyC Escape From Bursty Star Formation: Implications for [C II] Deficits and the Sources of Reionization

Curvature and dynamical spacetimes: can we peer into the quantum regime?

Kavli Affiliate: Ulrich Sperhake | First 5 Authors: Vitor Cardoso, David Hilditch, Krinio Marouda, José Natário, Ulrich Sperhake | Summary: Stationary compact astrophysical objects such as black holes and neutron stars behave as classical systems from the gravitational point of view. Their (observable) curvature is everywhere "small". Here we investigate whether mergers of such objects, […]


Continue.. Curvature and dynamical spacetimes: can we peer into the quantum regime?

First Sample of H$α$+[O III] $λ$5007 Line Emitters at $z > 6$ through JWST/NIRCam Slitless Spectroscopy: Physical Properties and Line Luminosity Functions

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Fengwu Sun, Eiichi Egami, Nor Pirzkal, Marcia Rieke, Stefi Baum | Summary: We present a sample of four emission-line galaxies at $z=6.11-6.35$ that were serendipitously discovered using the commissioning data for the JWST/NIRCam wide-field slitless spectroscopy (WFSS) mode. One of them (at $z=6.11$) has been reported previously […]


Continue.. First Sample of H$α$+[O III] $λ$5007 Line Emitters at $z > 6$ through JWST/NIRCam Slitless Spectroscopy: Physical Properties and Line Luminosity Functions

CMB lensing with shear-only reconstruction on the full sky

Kavli Affiliate: Anthony Challinor | First 5 Authors: Frank J. Qu, Anthony Challinor, Blake D. Sherwin, , | Summary: Reconstruction of gravitational lensing effects in the CMB from current and upcoming surveys is still dominated by temperature anisotropies. Extragalactic foregrounds in temperature maps can induce significant biases in the lensing power spectrum obtained with the […]


Continue.. CMB lensing with shear-only reconstruction on the full sky

CMB lensing with shear-only reconstruction on the full sky

Kavli Affiliate: Anthony Challinor | First 5 Authors: Frank J. Qu, Anthony Challinor, Blake D. Sherwin, , | Summary: Reconstruction of gravitational lensing effects in the CMB from current and upcoming surveys is still dominated by temperature anisotropies. Extragalactic foregrounds in temperature maps can induce significant biases in the lensing power spectrum obtained with the […]


Continue.. CMB lensing with shear-only reconstruction on the full sky

Biases to primordial non-Gaussianity measurements from CMB secondary anisotropies

Kavli Affiliate: Anthony Challinor | First 5 Authors: William Coulton, Alexander Miranthis, Anthony Challinor, , | Summary: Our view of the last-scattering surface in the cosmic microwave background (CMB) is obscured by secondary anisotropies, sourced by scattering, extragalactic emission and gravitational processes between recombination and observation. Whilst it is established that non-Gaussianity from the correlation […]


Continue.. Biases to primordial non-Gaussianity measurements from CMB secondary anisotropies

Morpheus Reveals Distant Disk Galaxy Morphologies with JWST: The First AI/ML Analysis of JWST Images

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Brant E. Robertson, Sandro Tacchella, Benjamin D. Johnson, Ryan Hausen, Adebusola B. Alabi | Summary: The dramatic first images with James Webb Space Telescope (JWST) demonstrated its power to provide unprecedented spatial detail for galaxies in the high-redshift universe. Here, we leverage the resolution and depth of […]


Continue.. Morpheus Reveals Distant Disk Galaxy Morphologies with JWST: The First AI/ML Analysis of JWST Images

The Atacama Cosmology Telescope: limits on dark matter-baryon interactions from DR4 power spectra

Kavli Affiliate: Blake Sherwin | First 5 Authors: Zack Li, Rui An, Vera Gluscevic, Kimberly K. Boddy, J. Richard Bond | Summary: Diverse astrophysical observations suggest the existence of cold dark matter that interacts only gravitationally with radiation and ordinary baryonic matter. Any nonzero coupling between dark matter and baryons would provide a significant step […]


Continue.. The Atacama Cosmology Telescope: limits on dark matter-baryon interactions from DR4 power spectra

On the Cosmic Web Elongation in Fuzzy Dark Matter Cosmologies

Kavli Affiliate: George Efstathiou | First 5 Authors: Tibor Dome, Anastasia Fialkov, Philip Mocz, Björn Malte Schäfer, Michael Boylan-Kolchin | Summary: The fuzzy dark matter (FDM) scenario has received increased attention in recent years due to the small-scale challenges of the vanilla Lambda cold dark matter ($Lambda$CDM) cosmological model and the lack of robust experimental […]


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JWST NIRCam+NIRSpec: Interstellar medium and stellar populations of young galaxies with rising star formation and evolving gas reservoirs

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Sandro Tacchella, Benjamin D. Johnson, Brant E. Robertson, Stefano Carniani, Francesco D’Eugenio | Summary: We present an interstellar medium and stellar population analysis of three spectroscopically confirmed $z>7$ galaxies in the ERO JWST/NIRCam and JWST/NIRSpec data of the SMACS J0723.3-7327 cluster. We use the Bayesian spectral energy […]


Continue.. JWST NIRCam+NIRSpec: Interstellar medium and stellar populations of young galaxies with rising star formation and evolving gas reservoirs