Extra-tensor-induced origin for the PTA signal: No primordial black hole production

Kavli Affiliate: Misao Sasaki | First 5 Authors: Mohammad Ali Gorji, Misao Sasaki, Teruaki Suyama, , | Summary: Recently, pulsar timing array (PTA) collaborations announced evidence for an isotropic stochastic gravitational wave (GW) background. The origin of the PTA signal can be astrophysical or cosmological. In the latter case, the so-called secondary scalar-induced GW scenario […]


Continue.. Extra-tensor-induced origin for the PTA signal: No primordial black hole production

Extra-tensor-induced origin for the PTA signal: No primordial black hole production

Kavli Affiliate: Misao Sasaki | First 5 Authors: Mohammad Ali Gorji, Misao Sasaki, Teruaki Suyama, , | Summary: Recently, pulsar timing array (PTA) collaborations announced evidence for an isotropic stochastic gravitational wave (GW) background. The origin of the PTA signal can be astrophysical or cosmological. In the latter case, the so-called secondary scalar-induced GW scenario […]


Continue.. Extra-tensor-induced origin for the PTA signal: No primordial black hole production

Freeform three-mirror anastigmatic large-aperture telescope and receiver optics for CMB-S4

Kavli Affiliate: Bradford Benson | First 5 Authors: Patricio A. Gallardo, Roberto Puddu, Kathleen Harrington, Bradford Benson, John Carlstrom | Summary: CMB-S4, the next-generation ground-based cosmic microwave background (CMB) observatory, will provide detailed maps of the CMB at millimeter wavelengths to dramatically advance our understanding of the origin and evolution of the universe. CMB-S4 will […]


Continue.. Freeform three-mirror anastigmatic large-aperture telescope and receiver optics for CMB-S4

Freeform three-mirror anastigmatic large-aperture telescope and receiver optics for CMB-S4

Kavli Affiliate: Bradford Benson | First 5 Authors: Patricio A. Gallardo, Roberto Puddu, Kathleen Harrington, Bradford Benson, John Carlstrom | Summary: CMB-S4, the next-generation ground-based cosmic microwave background (CMB) observatory, will provide detailed maps of the CMB at millimeter wavelengths to dramatically advance our understanding of the origin and evolution of the universe. CMB-S4 will […]


Continue.. Freeform three-mirror anastigmatic large-aperture telescope and receiver optics for CMB-S4

Freeform three-mirror anastigmatic large-aperture telescope and receiver optics for CMB-S4

Kavli Affiliate: John Carlstrom | First 5 Authors: Patricio A. Gallardo, Roberto Puddu, Kathleen Harrington, Bradford Benson, John Carlstrom | Summary: CMB-S4, the next-generation ground-based cosmic microwave background (CMB) observatory, will provide detailed maps of the CMB at millimeter wavelengths to dramatically advance our understanding of the origin and evolution of the universe. CMB-S4 will […]


Continue.. Freeform three-mirror anastigmatic large-aperture telescope and receiver optics for CMB-S4

Freeform three-mirror anastigmatic large-aperture telescope and receiver optics for CMB-S4

Kavli Affiliate: John Carlstrom | First 5 Authors: Patricio A. Gallardo, Roberto Puddu, Kathleen Harrington, Bradford Benson, John Carlstrom | Summary: CMB-S4, the next-generation ground-based cosmic microwave background (CMB) observatory, will provide detailed maps of the CMB at millimeter wavelengths to dramatically advance our understanding of the origin and evolution of the universe. CMB-S4 will […]


Continue.. Freeform three-mirror anastigmatic large-aperture telescope and receiver optics for CMB-S4

The Impact of Beam Variations on Power Spectrum Estimation for 21 cm Cosmology II: Mitigation of Foreground Systematics for HERA

Kavli Affiliate: Jacqueline N. Hewitt | First 5 Authors: Honggeun Kim, Nicholas S. Kern, Jacqueline N. Hewitt, Bang D. Nhan, Joshua S. Dillon | Summary: One key challenge in detecting 21 cm cosmological signal at z > 6 is to separate the cosmological signal from foreground emission. This can be studied in a power spectrum […]


Continue.. The Impact of Beam Variations on Power Spectrum Estimation for 21 cm Cosmology II: Mitigation of Foreground Systematics for HERA

The Impact of Beam Variations on Power Spectrum Estimation for 21 cm Cosmology II: Mitigation of Foreground Systematics for HERA

Kavli Affiliate: Jacqueline N. Hewitt | First 5 Authors: Honggeun Kim, Nicholas S. Kern, Jacqueline N. Hewitt, Bang D. Nhan, Joshua S. Dillon | Summary: One key challenge in detecting 21 cm cosmological signal at z > 6 is to separate the cosmological signal from foreground emission. This can be studied in a power spectrum […]


Continue.. The Impact of Beam Variations on Power Spectrum Estimation for 21 cm Cosmology II: Mitigation of Foreground Systematics for HERA