142 citations · 551 across the 13 of their papers we have counts for
13 papers
A candidate giant planet companion to the massive, young white dwarf GALEX J071816.4+373139 informs the occurrence of giant planets orbiting B stars
Sihao Cheng, Kevin C. Schlaufman, Ilaria Caiazzo
It has been suggested that giant planet occurrence peaks for stars with at a value a factor of 4 higher than observed for solar-mass stars. This popu…
Cosmology from weak lensing peaks and minima with Subaru Hyper Suprime-Cam survey first-year data
Gabriela A. Marques, Jia Liu, Masato Shirasaki +7
We present cosmological constraints derived from peak counts, minimum counts, and the angular power spectrum of the Subaru Hyper Suprime-Cam first-year (HSC Y1) weak lensing shear…
Dynamical masses across the Hertzsprung-Russell diagram
Hsiang-Chih Hwang, Yuan-Sen Ting, Sihao Cheng +1
We infer the dynamical masses of stars across the Hertzsprung-Russell (H-R) diagram using wide binaries from the Gaia survey. Gaia's high-precision astrometry measures the wide bin…
Scattering Spectra Models for Physics
Sihao Cheng, Rudy Morel, Erwan Allys +2
Physicists routinely need probabilistic models for a number of tasks such as parameter inference or the generation of new realizations of a field. Establishing such models for high…
How to quantify fields or textures? A guide to the scattering transform
Sihao Cheng, Brice Ménard
Extracting information from stochastic fields or textures is a ubiquitous task in science, from exploratory data analysis to classification and parameter estimation. From physics t…
Weak lensing scattering transform: dark energy and neutrino mass sensitivity
Sihao Cheng, Brice Ménard
As weak lensing surveys become deeper, they reveal more non-Gaussian aspects of the convergence field which can only be extracted using statistics beyond the power spectrum. In Che…
An Increase in Small-planet Occurrence with Metallicity for Late-type Dwarf Stars in the Kepler Field and Its Implications for Planet Formation
Cicero X. Lu, Kevin C. Schlaufman, Sihao Cheng
While it is well established that giant-planet occurrence rises rapidly with host star metallicity, it is not yet clear if small-planet occurrence around late-type dwarf stars depe…
Multi-Gigayear White Dwarf Cooling Delays from Clustering-Enhanced Gravitational Sedimentation
Evan B. Bauer, Josiah Schwab, Lars Bildsten +1
Cooling white dwarfs (WDs) can yield accurate ages when theoretical cooling models fully account for the physics of the dense plasma of WD interiors. We use MESA to investigate coo…
A Gravitational Redshift Measurement of the White Dwarf Mass-Radius Relation
Vedant Chandra, Hsiang-Chih Hwang, Nadia L. Zakamska +1
The mass-radius relation of white dwarfs is largely determined by the equation of state of degenerate electrons, which causes the stellar radius to decrease as mass increases. Here…
Forever young white dwarfs: when stellar ageing stops
María E. Camisassa, Leandro G. Althaus, Santiago Torres +5
White dwarf stars are the most common end point of stellar evolution. Of special interest are the ultramassive white dwarfs, as they are related to type Ia Supernovae explosions, m…
Carbon star formation as seen through the non-monotonic initial-final mass relation
Paola Marigo, Jeffrey D. Cummings, Jason Lee Curtis +13
The initial-final mass relation (IFMR) links the birth mass of a star to the mass of the compact remnant left at its death. While the relevance of the IFMR across astrophysics is u…
A new approach to observational cosmology using the scattering transform
Sihao Cheng, Yuan-Sen Ting, Brice Ménard +1
Parameter estimation with non-Gaussian stochastic fields is a common challenge in astrophysics and cosmology. In this paper, we advocate performing this task using the scattering t…
Two delays in white dwarf evolution revealed by Gaia
Sihao Cheng
By comparing two age indicators of high-mass white dwarfs derived from Gaia data, two discoveries have been made recently: one is the existence of a cooling anomaly that produces t…