A5024128455- Pulsars and Gravitational Waves Research
- Natural Language Processing Techniques
- Astrophysical Phenomena and Observations
- Text Readability and Simplification
- Radio Astronomy Observations and Technology
- Topic Modeling
- Cosmology and Gravitation Theories
- Plant Water Relations and Carbon Dynamics
- Galaxies: Formation, Evolution, Phenomena
- Stellar, planetary, and galactic studies
- Remote Sensing in Agriculture
- Astrophysics and Star Formation Studies
- Astro and Planetary Science
Stony Brook University
2019-2021
Shanghai Astronomical Observatory
2016-2017
University of Chinese Academy of Sciences
2017
University of Science and Technology of China
2017
Global evolution and dispersal of protoplanetary disks (PPDs) is governed by disk angular momentum transport mass-loss processes. Recent numerical studies suggest that in the inner region PPDs largely driven magnetized wind, yet wind rate remains unconstrained. On other hand, mass loss has conventionally been attributed to photoevaporation, where external heating on surface drives a thermal wind. We unify two scenarios developing 1D model winds with simple treatment thermodynamics as proxy...
We study the evolution of binary black hole (BBH) mass distribution across cosmic time. The second gravitational-wave transient catalog (GWTC-2) from LIGO/Virgo contains BBH events out to redshifts $z \sim 1$, with component masses in range $\sim5$--$80\,M_\odot$. In this catalog, biggest holes, $m_1 \gtrsim 45\,M_\odot$, are only found at highest redshifts, 0.4$. ask whether absence high-mass observations low redshift indicates that astrophysical evolves: BBHs merge high redshift, and cease...
Abstract Simultaneous measurements of distance and redshift can be used to constrain the expansion history universe associated cosmological parameters. Merging binary black hole (BBH) systems are standard sirens—their gravitational waveform provides direct information about luminosity source. There is, however, a perfect degeneracy between source masses redshift; some nongravitational is necessary break determine Here we suggest that pair instability supernova (PISN) process, thought...
We use the hydrodynamical galaxy formation simulations from Illustris suite to study origin and properties of velocity bias, i.e., difference between distributions galaxies dark matter inside halos. find that bias is a decreasing function ratio stellar mass host halo mass. In general, central are not at rest with respect halos or core halos, dispersion above 0.04 times matter. The found be mostly caused by close interactions satellite galaxies. For galaxies, related their dynamical tidal...
In this paper we calculate the radio burst signals from three kinds of structures superconducting cosmic strings. By taking into account observational factors including scattering and relativistic effects, derive event rate bursts as a function redshift with theoretical parameters $G\mu$ $\mathcal{I}$ Our analyses show that cusps kinks may have noticeable contributions to in most cases would dominate contribution, while kink-kink collisions tend secondary effects. fitting predictions...
Multilingual pre-trained models have achieved remarkable performance on cross-lingual transfer learning. Some multilingual such as mBERT, been unlabeled corpora, therefore the embeddings of different languages in may not be aligned very well. In this paper, we aim to improve zero-shot by proposing a pre-training task named Word-Exchange Aligning Model (WEAM), which uses statistical alignment information prior knowledge guide word prediction. We evaluate our model machine reading...