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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Exact analytic relations express M, α, D (and a) of Schwarzschild-MOG and Kerr-MOG black holes directly in terms of accretion-disk frequency shift, aperture angle, and redshift rapidity (plus acceleration in the rotating case).
Extending to wCDM mainly suppresses the leading Planck Fisher eigenvalue to 2.7% of its LambdaCDM value with only modest eigenmode rotation, while late-time data adds curvature that limits tension relief.
Diagnostic EUV–radio temperature disagreement and local conductive-closure failure in the quiet-Sun corona are orthogonal components of one relative entropy of a κ≈2.5 distribution.
Visibility modulations from extra photon rings appear only for spherically symmetric boson stars near equatorial viewing angles; rotating models show incomplete crescent-shaped rings and no clean modulation.
Multi-wavelength timing analysis of an X-class flare reveals temperature-dependent phase drifting in 5-minute QPPs, interpreted as evidence for periodic magnetic reconnection triggered by lower-atmosphere oscillations.
TSseek approximates time series as line segments and regex queries as bounding rectangles, then uses a distributed spatial index (TSseek-X) to support efficient exact whole-matching and subsequence-matching queries.
Stacking Fermi-LAT data from 21 blazars aligned to their jet directions detects anisotropic extended emission consistent with pair halos produced by a 2.8 x 10^{-16} G intergalactic magnetic field at 3.8 sigma.
Sulphur abundances decrease above 150 G in coronal loops, indicating FIP fractionation is modulated by mean magnetic field strength.
Dehnen-halo parameters amplify closed-orbit scale and induce GW phase lag; for the (z,1,z-1) family, light-curve peaks equal 3z-1 at high inclination.
Symbolic emulators approximate key Lambda CDM functions to 0.001-0.05% accuracy across relevant redshifts and Omega_m values, enabling faster 3x2pt inference with consistent results.
Multi-wavelength observations of NGC 3351 provide evidence that the stellar bar redistributes molecular gas inward, depleting it along the bar and suppressing star formation while building a central reservoir.
EHT angular diameter data yield upper bounds on the holonomy correction b (e.g., b ≤ 0.1319M at a=0 for M87*) showing nonzero b remains consistent with observations for RHCBH spacetimes.
REBOUNDx now includes interoperable modules implementing standard binary evolution physics including RLOF, CE drag, winds, magnetic braking, and post-Newtonian corrections.
Reviews direct imaging of protoplanets and proposes deriving observational estimates of planet mass-to-radius ratio to test formation models, highlighting ELT capabilities.
The spokes are modeled as a two-component system of persistent diamagnetic pyrolytic carbon and transient diamagnetic ice grains whose visibility and dynamics are controlled by electromagnetic interactions with Saturn's magnetosphere and solar elevation.
Numerical and analytical modeling of cosmic-ray transport attributes the long-term variation in the AMS-observed proton-to-helium ratio below 3 GV to mass-to-charge dependence in the heliospheric diffusion coefficient.
Observational evidence points to the chromosphere as the site of chemical fractionation responsible for the FIP effect in the solar corona.
The review identifies and discusses key unsolved problems in planetary nebulae such as 3D morphology, multipolar origins, dust distribution, binarity, and the abundance discrepancy, along with suggested future directions.
The Bern Model has incorporated MHD disk evolution, pebble accretion, and improved interiors, yielding quantitative matches to exoplanet mass functions, radius distributions, and system architectures.
The paper reviews physical processes, modeling techniques, retrieval methods, and observational strategies for characterizing exoplanet atmospheres, emphasizing Swiss research progress.
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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Accretion Disks in Schwarzschild-MOG and Kerr-MOG Backgrounds: MOG Parameter in terms of Observational Quantities
Exact analytic relations express M, α, D (and a) of Schwarzschild-MOG and Kerr-MOG black holes directly in terms of accretion-disk frequency shift, aperture angle, and redshift rapidity (plus acceleration in the rotating case).
-
Information-Geometric Perspective on the Hubble Tension: Eigenmode Rotation and Curvature Suppression in wCDM
Extending to wCDM mainly suppresses the leading Planck Fisher eigenvalue to 2.7% of its LambdaCDM value with only modest eigenmode rotation, while late-time data adds curvature that limits tension relief.
-
The Diagnostic Disagreement and the Closure Failure of the Quiet-Sun Corona Are the Same Relative Entropy
Diagnostic EUV–radio temperature disagreement and local conductive-closure failure in the quiet-Sun corona are orthogonal components of one relative entropy of a κ≈2.5 distribution.
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Ray tracing ultracompact boson stars: visibility modulations and incomplete photon rings
Visibility modulations from extra photon rings appear only for spherically symmetric boson stars near equatorial viewing angles; rotating models show incomplete crescent-shaped rings and no clean modulation.
-
Phase-drifting with emitting plasma temperature in the quasi-periodic pulsations of an X-class solar flare
Multi-wavelength timing analysis of an X-class flare reveals temperature-dependent phase drifting in 5-minute QPPs, interpreted as evidence for periodic magnetic reconnection triggered by lower-atmosphere oscillations.
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TSseek: Regular Expression-Based Similarity Search for Distributed Time Series Datasets
TSseek approximates time series as line segments and regex queries as bounding rectangles, then uses a distributed spatial index (TSseek-X) to support efficient exact whole-matching and subsequence-matching queries.
-
Search for Anisotropic Pair Halos Associated with Blazar Jets
Stacking Fermi-LAT data from 21 blazars aligned to their jet directions detects anisotropic extended emission consistent with pair halos produced by a 2.8 x 10^{-16} G intergalactic magnetic field at 3.8 sigma.
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Signs of Sulphur fractionation under high magnetic field strength
Sulphur abundances decrease above 150 G in coronal loops, indicating FIP fractionation is modulated by mean magnetic field strength.
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Gravitational emissions and light curves of quasi-periodic orbits in Schwarzschild spacetime embedded in a Dehnen-type dark matter halo
Dehnen-halo parameters amplify closed-orbit scale and induce GW phase lag; for the (z,1,z-1) family, light-curve peaks equal 3z-1 at high inclination.
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Symbolic Emulators for Cosmology: Accelerating Cosmological Analyses Without Sacrificing Precision
Symbolic emulators approximate key Lambda CDM functions to 0.001-0.05% accuracy across relevant redshifts and Omega_m values, enabling faster 3x2pt inference with consistent results.
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Bar-driven gas redistribution suppresses star formation in spiral galaxies: Evidence from dust lanes in NGC 3351
Multi-wavelength observations of NGC 3351 provide evidence that the stellar bar redistributes molecular gas inward, depleting it along the bar and suppressing star formation while building a central reservoir.
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Testing loop quantum gravity through EHT observations of M87* and Sgr A* using rotating holonomy-corrected black holes
EHT angular diameter data yield upper bounds on the holonomy correction b (e.g., b ≤ 0.1319M at a=0 for M87*) showing nonzero b remains consistent with observations for RHCBH spacetimes.
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Binary Star Evolution Modules in REBOUNDx
REBOUNDx now includes interoperable modules implementing standard binary evolution physics including RLOF, CE drag, winds, magnetic braking, and post-Newtonian corrections.
-
High-Contrast Imaging of Forming Protoplanets: VLTs, JWST, and the Promise of ELT
Reviews direct imaging of protoplanets and proposes deriving observational estimates of planet mass-to-radius ratio to test formation models, highlighting ELT capabilities.
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The Two-component Model of the 'spokes' in Saturn's Rings
The spokes are modeled as a two-component system of persistent diamagnetic pyrolytic carbon and transient diamagnetic ice grains whose visibility and dynamics are controlled by electromagnetic interactions with Saturn's magnetosphere and solar elevation.
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Numerical modeling of cosmic-ray transport in the heliosphere and interpretation of the proton-to-helium ratio in Solar Cycle 24
Numerical and analytical modeling of cosmic-ray transport attributes the long-term variation in the AMS-observed proton-to-helium ratio below 3 GV to mass-to-charge dependence in the heliospheric diffusion coefficient.
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The connection between solar coronal abundances and the underlying lower atmospheric properties
Observational evidence points to the chromosphere as the site of chemical fractionation responsible for the FIP effect in the solar corona.
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Current Unsolved Problems in Planetary Nebulae Research
The review identifies and discusses key unsolved problems in planetary nebulae such as 3D morphology, multipolar origins, dust distribution, binarity, and the abundance discrepancy, along with suggested future directions.
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The formation of planetary systems: physics, populations, and architectures
The Bern Model has incorporated MHD disk evolution, pebble accretion, and improved interiors, yielding quantitative matches to exoplanet mass functions, radius distributions, and system architectures.
-
NCCR PlanetS: Observational and computational characterization of exoplanet atmospheres
The paper reviews physical processes, modeling techniques, retrieval methods, and observational strategies for characterizing exoplanet atmospheres, emphasizing Swiss research progress.
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