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 […]
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 […]
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 […]
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 […]
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 […]
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 […]
Kavli Affiliate: Roberto Maiolino | First 5 Authors: Harley Katz, Aayush Saxena, Alex J. Cameron, Stefano Carniani, Andrew J. Bunker | Summary: We present a detailed analysis of the rest-frame optical emission line ratios for three spectroscopically confirmed galaxies at $z>7.5$. The galaxies were identified in the James Webb Space Telescope (JWST) Early Release Observations […]
Kavli Affiliate: George Efstathiou | First 5 Authors: Luke Conaboy, Ilian T. Iliev, Anastasia Fialkov, Keri L. Dixon, David Sullivan | Summary: Supersonic relative motion between baryons and dark matter due to the decoupling of baryons from the primordial plasma after recombination affects the growth of the first small-scale structures. Large box sizes (greater than […]
Kavli Affiliate: George Efstathiou | First 5 Authors: Luke Conaboy, Ilian T. Iliev, Anastasia Fialkov, Keri L. Dixon, David Sullivan | Summary: Supersonic relative motion between baryons and dark matter due to the decoupling of baryons from the primordial plasma after recombination affects the growth of the first small-scale structures. Large box sizes (greater than […]
Kavli Affiliate: George Efstathiou | First 5 Authors: Harry Bevins, Will Handley, Pablo Lemos, Peter Sims, Eloy de Lera Acedo | Summary: Cosmological experiments often employ Bayesian workflows to derive constraints on cosmological and astrophysical parameters from their data. It has been shown that these constraints can be combined across different probes such as Planck […]