SN 2023fyq is the first Type Ibn supernova with a directly detected hot luminous progenitor consistent with a low-mass helium star in a binary system, based on pre-explosion imaging, disappearance confirmation, and multi-wavelength environmental analysis.
Brent and Courtois, Hélène M
9 Pith papers cite this work, alongside 516 external citations. Polarity classification is still indexing.
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M87's radio core shows a proper motion of 10.19 μas yr⁻¹ at position angle 189.2°, implying a tangential velocity of 787 km s⁻¹ and a peculiar velocity of ~1037 km s⁻¹ at 65° to the line of sight.
SN 2020bij and four other Type IIP SNe with slow-rising light curves and high velocities are modeled with weak to no CSM interaction, suggesting a new subclass linked to confined CSM.
Introduces 9 synthetic annotation tasks and benchmarks for behavioral cloning, finding hierarchical skill learning, scaling benefits, effective multi-task pretraining, and shared internal representations of task phases and mistakes.
JWST spectroscopy reveals radio jets in nearby AGN drive multiphase ISM turbulence and shock-dominated H2 excitation both along and perpendicular to the jet direction.
Candidate 0.22 Hz X-ray pulsations detected in NGC7456 ULX-1 with evidence of spin-up, pointing to an accreting neutron star.
A catalogue of 37 voids (radii 13-38 h^{-1} Mpc) and 42 knots (volumes 10^4 to 3.3x10^5 h^{-3} Mpc^3) is presented using V-web on CF4++ZOA peculiar velocities within z=0.1.
Bulk flow measurements from Hawai`i Supernova Flows SNe Ia yield speeds of 100-400 km/s consistent with ΛCDM expectations at z ≲ 0.1.
Review of cosmic ray production and radio emission in galaxy clusters with recommendations for SKA observations of magnetic fields and low-energy particles.
citing papers explorer
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SN 2023fyq: direct detection of a Type Ibn supernova progenitor and its multi-wavelength environmental constraints
SN 2023fyq is the first Type Ibn supernova with a directly detected hot luminous progenitor consistent with a low-mass helium star in a binary system, based on pre-explosion imaging, disappearance confirmation, and multi-wavelength environmental analysis.
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The Peculiar Velocity of Messier~87 from Microarcsecond Geodetic VLBI Astrometry
M87's radio core shows a proper motion of 10.19 μas yr⁻¹ at position angle 189.2°, implying a tangential velocity of 787 km s⁻¹ and a peculiar velocity of ~1037 km s⁻¹ at 65° to the line of sight.
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SN 2020bij and a Possible Slow-Rise High-Velocity Subclass of Type IIP Supernovae
SN 2020bij and four other Type IIP SNe with slow-rising light curves and high velocities are modeled with weak to no CSM interaction, suggesting a new subclass linked to confined CSM.
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A Systematic Study of Behavioral Cloning for Scientific Data Annotation
Introduces 9 synthetic annotation tasks and benchmarks for behavioral cloning, finding hierarchical skill learning, scaling benefits, effective multi-task pretraining, and shared internal representations of task phases and mistakes.
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Jet-driven shocks and turbulence in radio-loud Active Galactic Nuclei observed with JWST MIRI/MRS
JWST spectroscopy reveals radio jets in nearby AGN drive multiphase ISM turbulence and shock-dominated H2 excitation both along and perpendicular to the jet direction.
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Evidence for candidate X-ray pulsations from the ultraluminous X-ray source NGC 7456 ULX-1
Candidate 0.22 Hz X-ray pulsations detected in NGC7456 ULX-1 with evidence of spin-up, pointing to an accreting neutron star.
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A local Universe catalogue of structures and voids dynamically identified using Cosmic-Flows4++ZOA peculiar velocities
A catalogue of 37 voids (radii 13-38 h^{-1} Mpc) and 42 knots (volumes 10^4 to 3.3x10^5 h^{-3} Mpc^3) is presented using V-web on CF4++ZOA peculiar velocities within z=0.1.
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Hawai`i Supernova Flows: Bulk Flow Measurements using SNe Ia in the Optical and NIR
Bulk flow measurements from Hawai`i Supernova Flows SNe Ia yield speeds of 100-400 km/s consistent with ΛCDM expectations at z ≲ 0.1.
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The Cosmic Ray Life Cycle in Galaxy Clusters
Review of cosmic ray production and radio emission in galaxy clusters with recommendations for SKA observations of magnetic fields and low-energy particles.