209 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Kirtland Air Force BaseUS47 papers
- Hunter CollegeUS33 papers
- City University of New YorkUS29 papers
- United States Air Force Research LaboratoryUS28 papers
- Donostia International Physics CenterES15 papers
- University of New MexicoUS15 papers
- University of California, BerkeleyUS9 papers
- Goddard Space Flight CenterUS8 papers
- California Institute of TechnologyUS7 papers
- Space Sciences LaboratoryUS7 papers
- Cornell UniversityUS6 papers
- Lockheed Martin (United States)US6 papers
90 papers
Solar wind modeling with the Alfven Wave Solar atmosphere Model driven by HMI-based Near-Real-Time maps by the National Solar Observatory
Nishtha Sachdeva, Ward B Manchester, Igor Sokolov +6
We explore model performance for the Alfven Wave Solar atmosphere Model (AWSoM) with near-real-time (NRT) synoptic maps of the photospheric vector magnetic field. These maps, produ…
Combining Machine Learning and Spectroscopy to Model Reactive Atom + Diatom Collisions
Juan Carlos San Vicente Veliz, Julian Arnold, Raymond J. Bemish +1
The prediction of product translational, vibrational, and rotational energy distributions for arbitrary initial conditions for reactive atom+diatom collisions is of considerable pr…
Quantum and Quasi-classical Dynamics of the C(P) + O() CO()+ O(D) Reaction on Its Electronic Ground State
Sugata Goswami, Juan Carlos San Vicente Veliz, Meenu Upadhyay +2
The dynamics of the C(P) + O() CO()+ O(D) reaction on its electronic ground state is investigated by using time-dependent wa…
New insights into the first two PSP solar encounters enabled by modeling analysis with ADAPT-WSA
Samantha Wallace, Shaela I. Jones, C. Nick Arge +2
Parker Solar Probes's (PSP)'s unique orbital path allows us to observe the solar wind closer to the Sun than ever before. Essential to advancing our knowledge of solar wind and ene…
Solar Polar Flux Redistribution based on Observed Coronal Holes
Samuel J. Schonfeld, Carl J. Henney, Shaela I. Jones +1
We explore the use of observed polar coronal holes (CHs) to constrain the flux distribution within the polar regions of global solar magnetic field maps in the absence of reliable…
Finite-temperature plasmons, damping and collective behavior for model
Andrii Iurov, Liubov Zhemchuzhna, Godfrey Gumbs +3
We have conducted a thorough theoretical and numerical investigation of the electronic susceptibility, polarizability, plasmons, their damping rates, as well as the static screenin…
Generalized Peierls substitution for the tight-binding model of twisted multilayer graphene in a magnetic field
Thi-Nga Do, Po-Hsin Shih, Hsin Lin +3
We propose a generalized Peierls substitution method in conjunction with the tight-binding model to explore the magnetic quantization and quantum Hall effect in twisted multilayer…
Machine Learning Product State Distributions from Initial Reactant States for a Reactive Atom-Diatom Collision System
Julian Arnold, Juan Carlos San Vicente Veliz, Debasish Koner +3
A machine learned (ML) model for predicting product state distributions from specific initial states (state-to-distribution or STD) for reactive atom-diatom collisions is presented…
Variable Ion Compositions of Solar Energetic Particle Events in the Inner Heliosphere: A Field-line Braiding Model with Compound Injections
Fan Guo, Lulu Zhao, Christina M. S. Cohen +8
We propose a model for interpreting highly variable ion composition ratios in solar energetic particles (SEP) events recently observed by Parker Solar Probe (PSP) at a…
Defect capturing and charging dynamics and their effects on magneto-transport of electrons in quantum wells
Andrii Iurov, Danhong Huang, Godfrey Gumbs +2
The defect corrections to polarization and dielectric functions of Bloch electrons in quantum wells are first calculated. Following this, we derive the first two moment equations f…
ALMA observations of transient heating in a solar active region
J. M. da Silva Santos, J. de la Cruz Rodríguez, S. M. White +3
We aim to investigate the temperature enhancements and formation heights of impulsive heating phenomena in solar active-regions such as Ellerman bombs (EBs), ultraviolet bursts (UV…
Using gradient boosting regression to improve ambient solar wind model predictions
R. L. Bailey, M. A. Reiss, C. N. Arge +7
Studying the ambient solar wind, a continuous pressure-driven plasma flow emanating from our Sun, is an important component of space weather research. The ambient solar wind flows…
Machine Learning for Observables: Reactant to Product State Distributions for Atom-Diatom Collisions
Julian Arnold, Debasish Koner, Silvan Käser +3
Machine learning-based models to predict product state distributions from a distribution of reactant conditions for atom-diatom collisions are presented and quantitatively tested.…
Dynamics on Multiple Potential Energy Surfaces: Quantitative Studies of Elementary Processes Relevant to Hypersonics
Debasish Koner, Raymond J. Bemish, Markus Meuwly
The determination of thermal and vibrational relaxation rates of triatomic systems suitable for application in hypersonic model calculations is discussed. For this, potential energ…
Nonlinear transport of ballistic Dirac electrons tunneling through a tunable potential barrier in graphene
Farhana Anwar, Andrii Iurov, Danhong Huang +2
Dirac-electronic tunneling and nonlinear transport properties with both finite and zero energy bandgap are investigated for graphene with a tilted potential barrier under a bias. F…
Evidence for He I 10830 Å~ absorption during the transit of a warm Neptune around the M-dwarf GJ 3470 with the Habitable-zone Planet Finder
Joe P. Ninan, Gudmundur Stefansson, Suvrath Mahadevan +21
Understanding the dynamics and kinematics of out-flowing atmospheres of hot and warm exoplanets is crucial to understanding the origins and evolutionary history of the exoplanets n…
The Low-Frequency Solar Corona in Circular Polarization
Patrick I. McCauley, Iver H. Cairns, Stephen M. White +4
We present spectropolarimetric imaging observations of the solar corona at low frequencies (80 - 240 MHz) using the Murchison Widefield Array (MWA). These images are the first of t…
Frequency Shifts due to Stark Effects on a Rb two-photon transition
Kyle W Martin, Benjamin Stuhl, Jon Eugenio +4
The two-photon transition in Rb is of interest for the development of a compact optical atomic clock. Here we present a rigorous calculation of the 7…
Quantum-statistical theory for laser-tuned transport and optical conductivities of dressed electrons in $α-\mc{T}_3$ materials
Andrii Iurov, Liubov Zhemchuzhna, Dipendra Dahal +2
In the presence of external off-resonance and circularly-polarized irradiation, we have derived a many-body formalism and performed a detailed numerical analysis for both the condu…
Compact Optical Atomic Clock Based on a Two-Photon Transition in Rubidium
Kyle W. Martin, Gretchen Phelps, Nathan D. Lemke +7
Extra-laboratory atomic clocks are necessary for a wide array of applications (e.g. satellite-based navigation and communication). Building upon existing vapor cell and laser techn…
Joint X-ray, EUV and UV Observations of a Small Microflare
Iain G. Hannah, Lucia Kleint, Säm Krucker +5
We present the first joint observation of a small microflare in X-rays with the Nuclear Spectroscopic Telescope ARray (NuSTAR), UV with the Interface Region Imaging Spectrograph (I…
Effects of site asymmetry and valley mixing on Hofstadter-type spectra of bilayer graphene in a square-scatter array potential
Danhong Huang, Andrii Iurov, Godfrey Gumbs +1
Under a magnetic field perpendicular to an monolayer graphene, the existence of a two-dimensional periodic scatter array can not only mix Landau levels of the same valley for displ…
Decay of semiclassical massless Dirac fermions from integrable and chaotic cavities
Chen-Di Han, Cheng-Zhen Wang, Hong-Ya Xu +2
Conventional microlasing of electromagnetic waves requires (1) a high cavity and (2) a mechanism for directional emission. Previous theoretical and experimental work demonstrat…
Microwave and Hard X-Ray Observations of the 2017 September 10 Solar Limb Flare
Dale E. Gary, Bin Chen, Brian R. Dennis +8
We report the first science results from the newly completed Expanded Owens Valley Solar Array (EOVSA), which obtained excellent microwave imaging spectroscopy observations of SOL2…