Yapeng Zhang
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View article: The ESO SupJup Survey
The ESO SupJup Survey Open
Context. Brown dwarfs at the L–T transition likely experience an inhomogeneous clearing of the clouds in their atmospheres. The resulting surface of thin and thick cloudy patches has been put forward to explain the observed variability, J …
View article: The ESO SupJup Survey
The ESO SupJup Survey Open
Context . Recent research suggests that the distinct formation processes of exoplanets and brown dwarfs may have an influence on the chemical and isotopic composition of their atmospheres. Variations in the carbon 12 C/ 13 C isotope ratio …
View article: A Fault Diagnosis Method for Analog Circuits Based on VMD-CFOA-ELM
A Fault Diagnosis Method for Analog Circuits Based on VMD-CFOA-ELM Open
Fault feature extraction of analog circuits is the main factor affecting their fault diagnosis accuracy. Therefore, in order to increase the accuracy of analog circuit fault diagnosis, this paper proposes a fault diagnosis method for analo…
View article: The ESO SupJup Survey V: Exploring Atmospheric Variability and Orbit of the Super-Jupiter AB Pictoris b with CRIRES+
The ESO SupJup Survey V: Exploring Atmospheric Variability and Orbit of the Super-Jupiter AB Pictoris b with CRIRES+ Open
A growing number of directly-imaged companions have been recently characterised, with robust constraints on carbon-to-oxygen ratios and even isotopic ratios. Many companions and isolated targets have also shown spectral variability. In thi…
View article: The ESO SupJup Survey V: exploring atmospheric variability and orbit of the super-Jupiter AB Pictoris b with CRIRES+
The ESO SupJup Survey V: exploring atmospheric variability and orbit of the super-Jupiter AB Pictoris b with CRIRES+ Open
A growing number of directly-imaged companions have been recently characterized, with robust constraints on carbon-to-oxygen ratios and even isotopic ratios. Many companions and isolated targets have also shown spectral variability. In thi…
View article: Modeling on shock wave collision between asymmetric clouds driven by powerful laser
Modeling on shock wave collision between asymmetric clouds driven by powerful laser Open
The cloud–cloud collision is one of the primary mechanisms proposed for forming massive stars. In addition to astronomical observations, plenty of numerical simulations have been conducted. However, relevant laboratory astrophysical studie…
View article: Observation of the colliding process of plasma jets in the double-cone ignition scheme using an x-ray streak camera
Observation of the colliding process of plasma jets in the double-cone ignition scheme using an x-ray streak camera Open
The double-cone ignition scheme is a novel approach with the potential to achieve a high gain fusion with a relatively smaller drive laser energy. To optimize the colliding process of the plasma jets formed by the CHCl/CD shells embedded i…
View article: Modeling solar chromospheric spicules with intense lasers
Modeling solar chromospheric spicules with intense lasers Open
Solar spicules are small-scale jet-like structures in the lower solar atmosphere. Currently, the formation of these widely distributed structures lacks a complete explanation. It is still unclear whether they play an essential role in coro…
View article: Reconstructing the Volume Density Profile of Prestellar Cores with the Anisotropic Inverse Abel Transform Method
Reconstructing the Volume Density Profile of Prestellar Cores with the Anisotropic Inverse Abel Transform Method Open
Most studies of the 3D density structure of prestellar cores have used isotropic evolution models, which are projected into 2D for direct comparison with observation data. In this study, we introduced the anisotropic inverse Abel transform…
View article: A Martin–Puplett interferometer (MPI) optical polarimeter: Design and laboratory tests
A Martin–Puplett interferometer (MPI) optical polarimeter: Design and laboratory tests Open
Spontaneous and external magnetic fields interacting with plasmas are essential in high-energy-density and magnetic confinement fusion physics. Measuring these magnetic fields, especially their topologies, is crucial. This paper develops a…
View article: Dynamical analysis of spontaneous Ca<sup>2+</sup> oscillations in astrocytes
Dynamical analysis of spontaneous Ca<sup>2+</sup> oscillations in astrocytes Open
In this work, we focus on a nonlinear dynamical model proposed by Lavrentovich et al. to compute and simulate spontaneous Ca2+ oscillations evoked by calcium ion efflux in astrocytes. Selected parameters are chosen, with observation of pe…
View article: The JCMT BISTRO Survey: A Spiral Magnetic Field in a Hub-filament Structure, Monoceros R2
The JCMT BISTRO Survey: A Spiral Magnetic Field in a Hub-filament Structure, Monoceros R2 Open
We present and analyze observations of polarized dust emission at 850 μ m toward the central 1 × 1 pc hub-filament structure of Monoceros R2 (Mon R2). The data are obtained with SCUBA-2/POL-2 on the James Clerk Maxwell Telescope (JCMT) as …
View article: The JCMT BISTRO Survey: A Spiral Magnetic Field in a Hub-filament Structure, Monoceros R2
The JCMT BISTRO Survey: A Spiral Magnetic Field in a Hub-filament Structure, Monoceros R2 Open
We present and analyze observations of polarized dust emission at 850 $μ$m towards the central 1 pc $\times$ 1 pc hub-filament structure of Monoceros R2 (Mon R2). The data are obtained with SCUBA-2/POL-2 on the James Clerk Maxwell Telescop…
View article: Anchoring Magnetic Fields in Turbulent Molecular Clouds. II. From 0.1 to 0.01 pc
Anchoring Magnetic Fields in Turbulent Molecular Clouds. II. From 0.1 to 0.01 pc Open
We compared the magnetic field directions inferred from polarimetry data obtained from 100 pc scale inter-cloud media (ICM) and from subparsec scale molecular cloud cores. The highly correlated result led us to conclude that cloud turbulen…
View article: “Dipper” stars in the Upper Sco and <i>ρ</i> Oph star forming regions identified from the K2 mission
“Dipper” stars in the Upper Sco and <i>ρ</i> Oph star forming regions identified from the K2 mission Open
We report the discovery of 24 new “dippers” - young stars with disks that show 1-3 day long abrupt drops in their light curves. The search was based on the K2 Campaign 2 observations of the Upper Sco and ρ Oph star forming regions.
View article: Impacts of projected changes of emissions and climate on future U.S. Air quality
Impacts of projected changes of emissions and climate on future U.S. Air quality Open
Projected changes in emissions and climate will impact future air quality and related human and environmental health.In this work, an advanced online-coupled meteorology and chemistry model, the Weather Research and Forecasting Model with …