On the Comparison of AGN with GRMHD Simulations: II. M87

Kavli Affiliate: Roger Blandford | First 5 Authors: Richard Anantua, Angelo Ricarte, George Wong, Razieh Emami, Roger Blandford | Summary: Horizon-scale observations of the jetted active galactic nucleus M87 are compared with simulations spanning a broad range of dissipation mechanisms and plasma content in three-dimensional general relativistic flows around spinning black holes. Observations of synchrotron […]


Continue.. On the Comparison of AGN with GRMHD Simulations: II. M87

Line profile of nuclear de-excitation gamma-ray emission from very hot plasma

Kavli Affiliate: Tadayuki Takahashi | First 5 Authors: Hiroki Yoneda, Felix Aharonian, Paolo Coppi, Thomas Siegert, Tadayuki Takahashi | Summary: De-excitation gamma-ray lines, produced by nuclei colliding with protons, provide information about astrophysical environments where particles have kinetic energies of $10-100$ MeV per nucleon. In general, such environments can be categorized into two types: the […]


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Ambiguity, Invisibility, and Negativity

Kavli Affiliate: Frank Wilczek | First 5 Authors: Frank Wilczek, , , , | Summary: Many widely different problems have a common mathematical structure wherein limited knowledge lead to ambiguity that can be captured conveniently using a concept of invisibility that requires the introduction of negative values for quantities that are inherently positive. Here I […]


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EIGER V. Characterizing the Host Galaxies of Luminous Quasars at $zgtrsim6$

Kavli Affiliate: Robert A. Simcoe | First 5 Authors: Minghao Yue, Anna-Christina Eilers, Robert A. Simcoe, Ruari Mackenzie, Jorryt Matthee | Summary: We report {em JWST}/NIRCam measurements of quasar host galaxy emissions and supermassive black hole (SMBH) masses for six quasars at $5.9<z<7.1$ in the textit{Emission-line galaxies and Intergalactic Gas in the Epoch of Reionization} […]


Continue.. EIGER V. Characterizing the Host Galaxies of Luminous Quasars at $zgtrsim6$

EIGER V. Characterizing the Host Galaxies of Luminous Quasars at $zgtrsim6$

Kavli Affiliate: Robert A. Simcoe | First 5 Authors: Minghao Yue, Anna-Christina Eilers, Robert A. Simcoe, Ruari Mackenzie, Jorryt Matthee | Summary: We report {em JWST}/NIRCam measurements of quasar host galaxy emissions and supermassive black hole (SMBH) masses for six quasars at $5.9<z<7.1$ in the textit{Emission-line galaxies and Intergalactic Gas in the Epoch of Reionization} […]


Continue.. EIGER V. Characterizing the Host Galaxies of Luminous Quasars at $zgtrsim6$

JADES: Resolving the Stellar Component and Filamentary Overdense Environment of HST-Dark Submillimeter Galaxy HDF850.1 at $z=5.18$

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Fengwu Sun, Jakob M. Helton, Eiichi Egami, Kevin N. Hainline, George H. Rieke | Summary: HDF850.1 is the brightest submillimeter galaxy (SMG) in the Hubble Deep Field. It is known as a heavily dust-obscured star-forming galaxy embedded in an overdense environment at $z = 5.18$. With nine-band […]


Continue.. JADES: Resolving the Stellar Component and Filamentary Overdense Environment of HST-Dark Submillimeter Galaxy HDF850.1 at $z=5.18$

JADES: Resolving the Stellar Component and Filamentary Overdense Environment of HST-Dark Submillimeter Galaxy HDF850.1 at $z=5.18$

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Fengwu Sun, Jakob M. Helton, Eiichi Egami, Kevin N. Hainline, George H. Rieke | Summary: HDF850.1 is the brightest submillimeter galaxy (SMG) in the Hubble Deep Field. It is known as a heavily dust-obscured star-forming galaxy embedded in an overdense environment at $z = 5.18$. With nine-band […]


Continue.. JADES: Resolving the Stellar Component and Filamentary Overdense Environment of HST-Dark Submillimeter Galaxy HDF850.1 at $z=5.18$

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