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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- background provide an internal consistency test of GR through independent waveform reconstruction and binary parameter estimation. Future work could extend the LILA selection function presented in this paper to make astrophysical predictions, such as expected LILA detection rates and redshift evolution of black hole merger rates, using semi-analytical models (e.g., Volonteri et al. 2008; Barausse 2012; Pacucci & Ferrara 2015; Valiante et al. 2018; Dayal et al. 2019; Sassano et al. 2021; Trinca et al. 2023;
- background 2020, 2021a; Pellejero Ibañez et al. 2023; Zennaro et al. 2023; Contreras et al. 2023a; Ortega- Martinez et al. 2024). Each emulator can vary the SHAMe-SF parameters, cosmological parameters (σ8,Ω m,Ω b,n s,handM ν), redshift, and number density simultaneously within the follow- ing ranges for the SHAMe-SF parameters: β∈[0,20] γ∈[−10,25] ∆γ∈[−10,10] V1 ∈[10 1.2,10 3.5] (km/s) ∆V1 ∈[10 0.2,10 1.9] (km/s) σ∈[0,1.7] fk,(cen+sat)/2 ∈[−1,1] fk,(cen−sat)/2 ∈[−1,1] α0 ∈[0,8] αexp ∈[−8,8] (4) Mcrit ∈[9,
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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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JWST Nebular Spectroscopy of SN 2023qov: Circumstellar Dust Emission in a Normal Type Ia Supernova
JWST nebular spectra detect cooling ~400 K carbonaceous dust emission in normal SN Ia 2023qov at +276 and +363 days, modeled as pre-existing circumstellar dust with mass ~10^{-4} M_sun located within ~1 light year.
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Dust and Grain Size Evolution in Galaxy Simulations: What Matters and What Does Not
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A Chemical Mismatch Between Young Stars and Their Inner Disks
Two young low-mass stars show solar C/O ratios while their inner disks are hydrocarbon-rich with C/O greater than one, providing direct evidence that disk processes enhance inner-disk carbon.
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Enhancement of the Rate of Tidal Disruption Events in Active Galactic Nuclei due to the Sweeping Secular Resonance Mechanism
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An X-ray reverberation mass measurement of Cygnus X-1
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TESS Observations of Stochastic Low-frequency Variability in Extreme Helium Stars
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\texttt{calypso}: a Parameter-Conditioned Stochastic Surrogate Model for Circumbinary Accretion Time-Series
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Seismic signature of a magnetic field in the $\gamma$ Doradus star KIC 2309579
First reported seismic detection of an internal magnetic field reaching approximately 4 kG in the radiative envelope of the gamma Doradus star KIC 2309579 using the variable delta Ka sensitive to Kelvin gravito-inertial modes.
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First-Principles Turbulence-Driven Deflagration-to-Detonation Transition Mechanism for Near-Chandrasekhar Mass White Dwarf Progenitors
Global 3D hydrodynamical simulations show that a turbulence-driven deflagration-to-detonation transition produces nearly identical peak spectra across diverse ignition densities and topologies in near-Chandrasekhar white dwarfs, matching SN 1999aa.
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Near-IR Weak-lensing (NIRWL) Measurements in the CANDELS Fields. II. Mass Mapping and Overdensity Characterization
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Direct T_e-based Metallicities of z=2-9 Galaxies with JWST/NIRSpec: Empirical Metallicity Calibrations Applicable from Reionization to Cosmic Noon
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Convective Overshoot and Macroscopic Diffusion in Pure-Hydrogen Atmosphere White Dwarfs
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Star-formation in CALIFA early-type galaxies. A matter of discs
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Radio jets from AGN in dwarf galaxies in the COSMOS survey: mechanical feedback out to redshift $\sim$3.4
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The $\tau$ of Neutral Hydrogen: Increased CMB Optical Depth at Long Wavelengths
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Reconstruction of annual solar irradiance over the last three millennia
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Milky Way Mapper decoded abundances -- II: From patterns to paths
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