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

A diffuse scattering model of ultracold neutrons on wavy surfaces

Kavli Affiliate: T. Higuchi | First 5 Authors: S. Imajo, H. Akatsuka, K. Hatanaka, T. Higuchi, G. Ichikawa | Summary: Metal tubes plated with nickel-phosphorus are used in many fundamental physics experiments using ultracold neutrons (UCN) because of their ease of fabrication. These tubes are usually polished to a average roughness of 25-150 nm. However, […]


Continue.. A diffuse scattering model of ultracold neutrons on wavy surfaces

Constraint on Early Dark Energy from Isotropic Cosmic Birefringence

Kavli Affiliate: Eiichiro Komatsu | First 5 Authors: Johannes R. Eskilt, Laura Herold, Eiichiro Komatsu, Kai Murai, Toshiya Namikawa | Summary: Polarization of the cosmic microwave background (CMB) is sensitive to new physics violating parity symmetry, such as the presence of a pseudoscalar "axionlike" field. Such a field may be responsible for early dark energy […]


Continue.. Constraint on Early Dark Energy from Isotropic Cosmic Birefringence

Constraint on Early Dark Energy from Isotropic Cosmic Birefringence

Kavli Affiliate: Eiichiro Komatsu | First 5 Authors: Johannes R. Eskilt, Laura Herold, Eiichiro Komatsu, Kai Murai, Toshiya Namikawa | Summary: Polarization of the cosmic microwave background (CMB) is sensitive to new physics violating parity symmetry, such as the presence of a pseudoscalar "axionlike" field. Such a field may be responsible for early dark energy […]


Continue.. Constraint on Early Dark Energy from Isotropic Cosmic Birefringence

Constraint on Early Dark Energy from Isotropic Cosmic Birefringence

Kavli Affiliate: Toshiya Namikawa | First 5 Authors: Johannes R. Eskilt, Laura Herold, Eiichiro Komatsu, Kai Murai, Toshiya Namikawa | Summary: Polarization of the cosmic microwave background (CMB) is sensitive to new physics violating parity symmetry, such as the presence of a pseudoscalar "axionlike" field. Such a field may be responsible for early dark energy […]


Continue.. Constraint on Early Dark Energy from Isotropic Cosmic Birefringence

Three Saturn-mass planets transiting F-type stars revealed with TESS and HARPS

Kavli Affiliate: Gabor Furesz | First 5 Authors: Angelica Psaridi, François Bouchy, Monika Lendl, Babatunde Akinsanmi, Keivan G. Stassun | Summary: While the sample of confirmed exoplanets continues to increase, the population of transiting exoplanets around early-type stars is still limited. These planets allow us to investigate the planet properties and formation pathways over a […]


Continue.. Three Saturn-mass planets transiting F-type stars revealed with TESS and HARPS

Hysteresis Compensation in Temperature Response of Fiber Bragg Grating Thermometers Using Dynamic Regression

Kavli Affiliate: Zeeshan Ahmed | First 5 Authors: Zeeshan Ahmed, , , , | Summary: In recent years there has been considerable interest in using photonic thermometers such as Fiber Bragg grating (FBG) and silicon ring resonators as an alternative technology to resistance-based legacy thermometers. Although FBG thermometers have been commercially available for decades their […]


Continue.. Hysteresis Compensation in Temperature Response of Fiber Bragg Grating Thermometers Using Dynamic Regression

Hysteresis Compensation in Temperature Response of Fiber Bragg Grating Thermometers Using Dynamic Regression

Kavli Affiliate: Zeeshan Ahmed | First 5 Authors: Zeeshan Ahmed, , , , | Summary: In recent years there has been considerable interest in using photonic thermometers such as Fiber Bragg grating (FBG) and silicon ring resonators as an alternative technology to resistance-based legacy thermometers. Although FBG thermometers have been commercially available for decades their […]


Continue.. Hysteresis Compensation in Temperature Response of Fiber Bragg Grating Thermometers Using Dynamic Regression

Stability and detectability of exomoons orbiting HIP 41378 f, a temperate Jovian planet with an anomalously low apparent density

Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Caleb K. Harada, Courtney D. Dressing, Munazza K. Alam, James Kirk, Mercedes Lopez-Morales | Summary: Moons orbiting exoplanets ("exomoons") may hold clues about planet formation, migration, and habitability. In this work, we investigate the plausibility of exomoons orbiting the temperate ($T_text{eq}=294$ K) giant ($R = 9.2$ R$_oplus$) […]


Continue.. Stability and detectability of exomoons orbiting HIP 41378 f, a temperate Jovian planet with an anomalously low apparent density