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182 papers · 1 filter
Constraining the inflaton potential with gravitational waves from oscillons
Kaloian D. Lozanov, Misao Sasaki, Jan Tränkle
Under certain conditions, the oscillating inflaton condensate filling the Universe after inflation can fragment and form so-called oscillons. These long-lived soliton-like field co…
Towards constraining cosmological parameters with SPT-3G observations of 25% of the sky
A. Vitrier, K. Fichman, L. Balkenhol +103
The South Pole Telescope (SPT), using its third-generation camera, SPT-3G, is conducting observations of the cosmic microwave background (CMB) in temperature and polarization acros…
Measuring cosmic dipole with the GRB luminosity-time relation
Jessica Santiago, Kerkyra Asvesta, Maria Giovanna Dainotti +1
We present a new analysis of cosmic dipole anisotropy using gamma-ray bursts (GRBs) as high-redshift standardizable candles. GRBs are ideal probes for testing the cosmological prin…
Fuzzy dark matter simulations
Hsi-Yu Schive
Fuzzy dark matter (FDM), composed of ultralight bosons, exhibits intricate wave phenomena on galactic scales. Compared to cold dark matter, FDM simulations are significantly more c…
SPT-3G D1: Axion Early Dark Energy with CMB experiments and DESI
A. R. Khalife, L. Balkenhol, E. Camphuis +92
We present the most up-to-date constraints on axion early dark energy (AEDE) from cosmic microwave background (CMB) and baryon acoustic oscillation (BAO) measurements. In particula…
SPT-3G D1: CMB temperature and polarization power spectra and cosmology from 2019 and 2020 observations of the SPT-3G Main field
E. Camphuis, W. Quan, L. Balkenhol +94
We present measurements of the temperature and E-mode polarization angular power spectra of the cosmic microwave background (CMB) from observations of 4% of the sky with SPT-3G, th…