The JWST Search for Earth-Luna Analogs: Upper Limits on Exomoons and Refined Ephemerides for TOI 700 d and e

Posted by klaurent MIT

Kavli Affiliate: Andrew Vanderburg | Summary:While no conclusive detections of exomoons have been reported to date, planet formation theories predict that Luna-analog satellites should be a common outcome of the collisional dynamics in early extrasolar systems. Such satellites have the potential to unlock new avenues to learn about exoplanet systems, speaking to topics of habitability, […]


Continue.. The JWST Search for Earth-Luna Analogs: Upper Limits on Exomoons and Refined Ephemerides for TOI 700 d and e

The JWST Search for Earth-Luna Analogs: Upper Limits on Exomoons and Refined Ephemerides for TOI 700 d and e

Posted by klaurent MIT

Kavli Affiliate: Andrew Vanderburg | Summary:While no conclusive detections of exomoons have been reported to date, planet formation theories predict that satellites should be a common outcome of the collisional dynamics in early extrasolar systems. Such satellites have the potential to unlock new avenues to learn about exoplanet systems, speaking to topics of habitability, tidal […]


Continue.. The JWST Search for Earth-Luna Analogs: Upper Limits on Exomoons and Refined Ephemerides for TOI 700 d and e

Implications of low neutron star merger rates for gamma-ray bursts, r-process production and Galactic double neutron stars

Posted by klaurent Chicago

Kavli Affiliate: Alexander Ji | Summary:The first multimessenger discovery of a binary neutron star (BNS) merger, GW170817, proved that such mergers can source short gamma-ray bursts (SGRBs) and produce r-process elements. The initial merger rate from this single event was found to be broadly consistent with the SGRB rate, the Milky Way (MW) r-process mass, […]


Continue.. Implications of low neutron star merger rates for gamma-ray bursts, r-process production and Galactic double neutron stars

Implications of low neutron star merger rates for gamma-ray bursts, r-process production and Galactic double neutron stars

Posted by klaurent Chicago

Kavli Affiliate: Alexander Ji | Summary:The first multimessenger discovery of a binary neutron star (BNS) merger, GW170817, proved that such mergers can source short gamma-ray bursts (SGRBs) and produce rprocess elements. The initial merger rate from this single event in the first two observing runs of the LIGO-Virgo observatory network, $110$–$3840,mathrmGpc^-3,mathrmyr^-1$, was found to be […]


Continue.. Implications of low neutron star merger rates for gamma-ray bursts, r-process production and Galactic double neutron stars

Electroweak Doublet Dark Matter for a Galactic Halo Gamma-Ray Excess

Posted by klaurent Tokyo

Kavli Affiliate: Yasunori Nomura | Summary:Weakly interacting massive particles provide a well-motivated framework for dark matter, naturally reproducing the observed relic abundance through thermal freeze-out. A recent claim of an indirect-detection signal from the Galactic halo, consistent with dark matter annihilation in the mass range 400–800 GeV, motivates a reexamination of minimal models that can […]


Continue.. Electroweak Doublet Dark Matter for a Galactic Halo Gamma-Ray Excess

Rank-Based Sparse Regression in Principal Components Space under Measurement Error

Posted by klaurent Peking

Kavli Affiliate: Feng Long| Summary: We study high-dimensional regression in principal components space when the predictors are observed with additive measurement error and the response errors may be heavy-tailed. The starting point is the $ell_1$-penalized principal-components estimator of Song and Zou (2026), which enjoys a blessing-of-dimensionality phenomenon under predictor contamination but senstive for heavy-tailed data […]


Continue.. Rank-Based Sparse Regression in Principal Components Space under Measurement Error

High Dimensional Bootstrap and Asymptotic Expansion for the $k$-th Largest Coordinate

Posted by klaurent Peking

Kavli Affiliate: Feng Long| Summary: We study bootstrap inference for the $k$th largest coordinate of a normalized sum of independent high-dimensional random vectors. Existing second-order theory for maxima does not directly extend to order statistics, because the event $T_n,[k]le t$ is not a rectangle and its local structure is governed by exceedance counts rather than […]


Continue.. High Dimensional Bootstrap and Asymptotic Expansion for the $k$-th Largest Coordinate

Resolutions and deformations of cyclic quotient surface singularities

Posted by klaurent Tokyo

Kavli Affiliate: Yukari Ito | Summary:In this paper, we investigate the relations among various results concerning the minimal resolution of cyclic quotient singularities of the form $mathbbC^2/G$. We refer to these as "bamboo-type" singularities, since the dual graphs of the exceptional curves in their resolutions resemble the shape of bamboo. We present classical results on […]


Continue.. Resolutions and deformations of cyclic quotient surface singularities

Resolutions and deformations of cyclic quotient surface singularities

Posted by klaurent Tokyo

Kavli Affiliate: Yukari Ito | Summary:In this paper, we investigate the relations among various results concerning the minimal resolution of cyclic quotient singularities of the form $mathbbC^2/G$. We refer to these as "bamboo-type" singularities, since the dual graphs of the exceptional curves in their resolutions resemble the shape of bamboo. We present classical results on […]


Continue.. Resolutions and deformations of cyclic quotient surface singularities