Interferometric time series show steady mass loss in Miras tied to large-amplitude fundamental-mode pulsations, while RSGs like VX Sgr undergo extreme mass-loss events linked to pulsation mode changes and shocks.
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W., Lang, D., & Goodman, J
24 Pith papers cite this work. Polarity classification is still indexing.
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The [CII]-to-molecular gas conversion factor evolves from over 10,000 to about 10 solar masses per solar luminosity as galaxies enrich from very low metallicity at high redshift to higher values later, making a redshift-independent factor unusable.
HATS-75 b has a sub-solar metallicity atmosphere (log[M/H] ≈ -1.74) with super-solar C/O, robust CH4/CO/CO2 absorption, and an H2O upper limit, where the spectrum is best explained by stellar contamination rather than hazes.
Multi-band EBL intensity mapping cross-correlated with cosmic shear and galaxy clustering recovers IHL, IGL, and EoR parameters with 10-35% smaller uncertainties than intensity mapping alone.
A velocity-coupled radial acceleration ansatz fits 171 SPARC rotation curves comparably to NFW and Burkert halos while revealing strong parameter degeneracies.
Analysis of 107 matched strong-lensing and supernova pairs with lens-specific luminosity slopes finds that free stellar anisotropy is statistically required and reveals negative redshift evolution in early-type galaxy density profiles.
An empirical method corrects clustering bias in P(D) galaxy number counts, showing that clustering inflates 500μm counts by a factor of 1.6 near 10 mJy in Herschel-SPIRE GOODS-N data.
JWST auroral-line selected galaxies at high redshift show an MZR slope of 0.38 with selection biases favoring high-SFR low-metallicity systems, while stacked non-detections lie closer to the fundamental metallicity relation.
A Gibbs sampling technique marginalizes over photon-to-Gaussian assignments to fit timing and noise models to discrete gamma-ray arrival times while accounting for pulse-profile uncertainty.
DES supernova data alone give Omega_M = 0.352 +/- 0.017 in flat LambdaCDM and confirm acceleration at >5 sigma, with dark energy consistent with a cosmological constant to within ~2 sigma when combined with other probes.
The local Hubble constant is measured as 73.04 ± 1.04 km/s/Mpc from Cepheid-calibrated Type Ia supernovae, showing a 5-sigma discrepancy with the Planck+LCDM prediction.
High-resolution spectroscopy of 51 Peg b confirms atmospheric H2O, constrains high metallicity and solar C/O via Bayesian retrieval, and yields an alternative orbital semi-amplitude of 102.8 km/s with revised mass 0.61 MJup and inclination 49.8 deg.
Pulsed fraction spectra from XMM-Newton and NuSTAR on Vela X-1 agree within 5% after instrumental corrections and reveal emission-line and cyclotron features whose strength varies with orbital absorption.
The high-contrast dust asymmetry in HD 34700A is reproduced by a vortex model, with contrast levels excluding eccentric cavity orbit clustering.
A new compact hierarchical triple main-sequence star system G1010 was discovered through combined low- and high-SNR spectroscopy, Gaia DR3 data, and TESS light curve analysis, showing an inner eclipsing binary rather than a compact object companion.
A new two-parameter empirical magnitude-redshift relation for Type Ia supernovae fits observations comparably or better than LambdaCDM and indicates uniform cosmic acceleration.
Direct O-C timing analysis yields an orbital decay rate of (-1.97 ± 0.05) × 10^{-12} s s^{-1} in ZTFJ2130, from which a chirp mass of 0.408 ± 0.006 solar masses is derived assuming pure GW emission.
Three new warm Jupiters (periods 11.3–44.4 days, masses 0.51–1.29 M_J, radii ~0.97–0.98 R_J) were confirmed via TESS photometry and follow-up radial velocities and light curves.
Simulations show that combining QUIJOTE-MFI2 with WMAP and Planck reduces synchrotron spectral index uncertainty by a factor of ~10, curvature uncertainty by ~5, and polarization amplitude uncertainty by ~43 in bright regions while cutting 100 GHz residuals by a factor of 6.
Prospector is a flexible code for Bayesian inference of stellar population parameters from multi-wavelength photometry and spectroscopy via forward modeling and posterior sampling.
Some LIGO/Virgo BH-BH mergers may arise from black holes in merging ultra-dwarf galaxies at z>1 if merger timescales are 4-7 Gyr, as local rates are too low by an order of magnitude but high-z conditions could match the observed GW rate of 9.7-101 Gpc^-3 yr^-1.
Six seismic solar analogs have masses 0.91-1.04 solar masses, radii 0.95-1.08 solar radii, and ages 1.8-9.1 Gyr, with one star matching the Sun closely enough to be called a solar twin.
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VLTI-GRAVITY measurements of cool evolved stars: II. Pulsation properties and mass-loss process of the Mira star R Car and the red supergiant VX Sgr
Interferometric time series show steady mass loss in Miras tied to large-amplitude fundamental-mode pulsations, while RSGs like VX Sgr undergo extreme mass-loss events linked to pulsation mode changes and shocks.
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Cosmic evolution of the [CII]-to-molecular gas relation
The [CII]-to-molecular gas conversion factor evolves from over 10,000 to about 10 solar masses per solar luminosity as galaxies enrich from very low metallicity at high redshift to higher values later, making a redshift-independent factor unusable.
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GEMS JWST: HATS-75 b -- A giant planet with a sub-solar metallicity atmosphere orbiting an M-dwarf
HATS-75 b has a sub-solar metallicity atmosphere (log[M/H] ≈ -1.74) with super-solar C/O, robust CH4/CO/CO2 absorption, and an H2O upper limit, where the spectrum is best explained by stellar contamination rather than hazes.
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Euclid preparation. Decomposing components of the extragalactic background light using multi-band intensity mapping cross-correlations
Multi-band EBL intensity mapping cross-correlated with cosmic shear and galaxy clustering recovers IHL, IGL, and EoR parameters with 10-35% smaller uncertainties than intensity mapping alone.
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A Velocity Coupled Radial Acceleration Ansatz for Disk-Galaxy Rotation Curves: Fits to SPARC, Bayesian Inference, and Parameter Identifiability
A velocity-coupled radial acceleration ansatz fits 171 SPARC rotation curves comparably to NFW and Burkert halos while revealing strong parameter degeneracies.
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Reassessing the Statistical Necessity of Stellar Velocity Anisotropy in Strong-Lensing Cosmology with Lens-by-Lens Photometric Constraints
Analysis of 107 matched strong-lensing and supernova pairs with lens-specific luminosity slopes finds that free stellar anisotropy is statistically required and reveals negative redshift evolution in early-type galaxy density profiles.
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How to count clustered galaxies
An empirical method corrects clustering bias in P(D) galaxy number counts, showing that clustering inflates 500μm counts by a factor of 1.6 near 10 mJy in Herschel-SPIRE GOODS-N data.
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Shape of Direct-Method Mass-Metallicity Relation with JWST: Fast-Track Nitrogen and Helium Enrichment
JWST auroral-line selected galaxies at high redshift show an MZR slope of 0.38 with selection biases favoring high-SFR low-metallicity systems, while stacked non-detections lie closer to the fundamental metallicity relation.
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Timing Gamma-ray Pulsars using Gibbs Sampling
A Gibbs sampling technique marginalizes over photon-to-Gaussian assignments to fit timing and noise models to discrete gamma-ray arrival times while accounting for pulse-profile uncertainty.
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The Dark Energy Survey: Cosmology Results With ~1500 New High-redshift Type Ia Supernovae Using The Full 5-year Dataset
DES supernova data alone give Omega_M = 0.352 +/- 0.017 in flat LambdaCDM and confirm acceleration at >5 sigma, with dark energy consistent with a cosmological constant to within ~2 sigma when combined with other probes.
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A Comprehensive Measurement of the Local Value of the Hubble Constant with 1 km/s/Mpc Uncertainty from the Hubble Space Telescope and the SH0ES Team
The local Hubble constant is measured as 73.04 ± 1.04 km/s/Mpc from Cepheid-calibrated Type Ia supernovae, showing a 5-sigma discrepancy with the Planck+LCDM prediction.
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51 Peg b revisited with VLT/CRIRES+. Constraints on atmospheric thermal structure, chemical composition, and an alternative orbital solution
High-resolution spectroscopy of 51 Peg b confirms atmospheric H2O, constrains high metallicity and solar C/O via Bayesian retrieval, and yields an alternative orbital semi-amplitude of 102.8 km/s with revised mass 0.61 MJup and inclination 49.8 deg.
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Energy-resolved pulse profiles of Vela X-1: cross-calibrating XMM-Newton and NuSTAR to trace spectral features
Pulsed fraction spectra from XMM-Newton and NuSTAR on Vela X-1 agree within 5% after instrumental corrections and reveal emission-line and cyclotron features whose strength varies with orbital absorption.
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The Circumbinary Disc of HD 34700A II. Analysis of a strong dust asymmetry
The high-contrast dust asymmetry in HD 34700A is reproduced by a vortex model, with contrast levels excluding eccentric cavity orbit clustering.
-
Discovery of a compact hierarchical triple main-sequence star system while searching for binary stars with compact objects
A new compact hierarchical triple main-sequence star system G1010 was discovered through combined low- and high-SNR spectroscopy, Gaia DR3 data, and TESS light curve analysis, showing an inner eclipsing binary rather than a compact object companion.
-
A new magnitude--redshift relation based on Type Ia supernovae
A new two-parameter empirical magnitude-redshift relation for Type Ia supernovae fits observations comparably or better than LambdaCDM and indicates uniform cosmic acceleration.
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Observing Orbital Decay in the Ultracompact Hot Subdwarf Binary System ZTFJ213056.71+442046.5
Direct O-C timing analysis yields an orbital decay rate of (-1.97 ± 0.05) × 10^{-12} s s^{-1} in ZTFJ2130, from which a chirp mass of 0.408 ± 0.006 solar masses is derived assuming pure GW emission.
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PLATOSpec's first results: Three new transiting warm Jupiters from the WINE survey TIC 147027702, TIC 245076932 and TIC 87422071
Three new warm Jupiters (periods 11.3–44.4 days, masses 0.51–1.29 M_J, radii ~0.97–0.98 R_J) were confirmed via TESS photometry and follow-up radial velocities and light curves.
-
Forecasting synchrotron spectral parameters with QUIJOTE-MFI2 in combination with Planck and WMAP
Simulations show that combining QUIJOTE-MFI2 with WMAP and Planck reduces synchrotron spectral index uncertainty by a factor of ~10, curvature uncertainty by ~5, and polarization amplitude uncertainty by ~43 in bright regions while cutting 100 GHz residuals by a factor of 6.
-
Stellar Population Inference with Prospector
Prospector is a flexible code for Bayesian inference of stellar population parameters from multi-wavelength photometry and spectroscopy via forward modeling and posterior sampling.
-
Gravitational Waves from Black Holes in Merging Ultra-Dwarf Galaxies
Some LIGO/Virgo BH-BH mergers may arise from black holes in merging ultra-dwarf galaxies at z>1 if merger timescales are 4-7 Gyr, as local rates are too low by an order of magnitude but high-z conditions could match the observed GW rate of 9.7-101 Gpc^-3 yr^-1.
-
Characterizing six seismic solar analogs observed by Kepler, K2, and HERMES
Six seismic solar analogs have masses 0.91-1.04 solar masses, radii 0.95-1.08 solar radii, and ages 1.8-9.1 Gyr, with one star matching the Sun closely enough to be called a solar twin.
- Clues to inside-out quenching in quiescent galaxies at $1.2\lesssim z\lesssim2.2$: Age, Fe-, and Mg-abundance gradients from JWST-SUSPENSE
- Hubble tension and small-scale inhomogeneities on light propagation