A Detection of Cosmological 21 cm Emission from CHIME in Cross-correlation with eBOSS Measurements of the Lyman-$α$ Forest

Kavli Affiliate: Kiyoshi Masui | First 5 Authors: CHIME Collaboration, Mandana Amiri, Kevin Bandura, Arnab Chakraborty, Matt Dobbs | Summary: We report the detection of 21 cm emission at an average redshift $bar{z} = 2.3$ in the cross-correlation of data from the Canadian Hydrogen Intensity Mapping Experiment (CHIME) with measurements of the Lyman-$alpha$ forest from […]


Continue.. A Detection of Cosmological 21 cm Emission from CHIME in Cross-correlation with eBOSS Measurements of the Lyman-$α$ Forest

Two mini-Neptunes Transiting the Adolescent K-star HIP 113103 Confirmed with TESS and CHEOPS

Kavli Affiliate: Sara Seager | First 5 Authors: Nataliea Lowson, George Zhou, Chelsea X. Huang, Duncan J. Wright, Billy Edwards | Summary: We report the discovery of two mini-Neptunes in near 2:1 resonance orbits ($P=7.610303$ d for HIP 113103 b and $P=14.245651$ d for HIP 113103 c) around the adolescent K-star HIP 113103 (TIC 121490076). […]


Continue.. Two mini-Neptunes Transiting the Adolescent K-star HIP 113103 Confirmed with TESS and CHEOPS

Two mini-Neptunes Transiting the Adolescent K-star HIP 113103 Confirmed with TESS and CHEOPS

Kavli Affiliate: Sara Seager | First 5 Authors: Nataliea Lowson, George Zhou, Chelsea X. Huang, Duncan J. Wright, Billy Edwards | Summary: We report the discovery of two mini-Neptunes in near 2:1 resonance orbits ($P=7.610303$ d for HIP 113103 b and $P=14.245651$ d for HIP 113103 c) around the adolescent K-star HIP 113103 (TIC 121490076). […]


Continue.. Two mini-Neptunes Transiting the Adolescent K-star HIP 113103 Confirmed with TESS and CHEOPS

Two mini-Neptunes Transiting the Adolescent K-star HIP 113103 Confirmed with TESS and CHEOPS

Kavli Affiliate: Sara Seager | First 5 Authors: Nataliea Lowson, George Zhou, Chelsea X. Huang, Duncan J. Wright, Billy Edwards | Summary: We report the discovery of two mini-Neptunes in near 2:1 resonance orbits ($P=7.610303$ d for HIP 113103 b and $P=14.245651$ d for HIP 113103 c) around the adolescent K-star HIP 113103 (TIC 121490076). […]


Continue.. Two mini-Neptunes Transiting the Adolescent K-star HIP 113103 Confirmed with TESS and CHEOPS

Two mini-Neptunes Transiting the Adolescent K-star HIP 113103 Confirmed with TESS and CHEOPS

Kavli Affiliate: Sara Seager | First 5 Authors: Nataliea Lowson, George Zhou, Chelsea X. Huang, Duncan J. Wright, Billy Edwards | Summary: We report the discovery of two mini-Neptunes in near 2:1 resonance orbits ($P=7.610303$ d for HIP 113103 b and $P=14.245651$ d for HIP 113103 c) around the adolescent K-star HIP 113103 (TIC 121490076). […]


Continue.. Two mini-Neptunes Transiting the Adolescent K-star HIP 113103 Confirmed with TESS and CHEOPS

X-ray eruptions every 22 days from the nucleus of a nearby galaxy

Kavli Affiliate: Ronald Remillard | First 5 Authors: Muryel Guolo, Dheeraj R. Pasham, Michal Zajaček, Eric R. Coughlin, Suvi Gezari | Summary: Galactic nuclei showing recurrent phases of activity and quiescence have recently been discovered, with recurrence times as short as a few hours to a day — known as quasi-periodic X-ray eruption (QPE) sources […]


Continue.. X-ray eruptions every 22 days from the nucleus of a nearby galaxy

X-ray eruptions every 22 days from the nucleus of a nearby galaxy

Kavli Affiliate: Ronald Remillard | First 5 Authors: Muryel Guolo, Dheeraj R. Pasham, Michal Zajaček, Eric R. Coughlin, Suvi Gezari | Summary: Galactic nuclei showing recurrent phases of activity and quiescence have recently been discovered, with recurrence times as short as a few hours to a day — known as quasi-periodic X-ray eruption (QPE) sources […]


Continue.. X-ray eruptions every 22 days from the nucleus of a nearby galaxy

X-ray eruptions every 22 days from the nucleus of a nearby galaxy

Kavli Affiliate: Ronald Remillard | First 5 Authors: Muryel Guolo, Dheeraj R. Pasham, Michal Zajaček, Eric R. Coughlin, Suvi Gezari | Summary: Galactic nuclei showing recurrent phases of activity and quiescence have recently been discovered, with recurrence times as short as a few hours to a day — known as quasi-periodic X-ray eruption (QPE) sources […]


Continue.. X-ray eruptions every 22 days from the nucleus of a nearby galaxy

Provably safe systems: the only path to controllable AGI

Kavli Affiliate: Max Tegmark | First 5 Authors: Max Tegmark, Steve Omohundro, , , | Summary: We describe a path to humanity safely thriving with powerful Artificial General Intelligences (AGIs) by building them to provably satisfy human-specified requirements. We argue that this will soon be technically feasible using advanced AI for formal verification and mechanistic […]


Continue.. Provably safe systems: the only path to controllable AGI

Magnetic structures and turbulence in SN 1006 revealed with imaging X-ray polarimetry

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Ping Zhou, Dmitry Prokhorov, Riccardo Ferrazzoli, Yi-Jung Yang, Patrick Slane | Summary: Young supernova remnants (SNRs) strongly modify surrounding magnetic fields, which in turn play an essential role in accelerating cosmic rays (CRs). X-ray polarization measurements probe magnetic field morphology and turbulence at the immediate acceleration […]


Continue.. Magnetic structures and turbulence in SN 1006 revealed with imaging X-ray polarimetry