A systematic study of the linear thermal stability of a medium subject to cooling, self-gravity, and thermal conduction is carried out for the case when the...
-
PublicationThermal Instability in a Cooling and Expanding Medium Including Self-Gravity and Conduction
-
PublicationThermal Relaxation of Very Small Solar Magnetic Structures in Intergranules: A Process That Produces Kilogauss Magnetic Field Strengths
The equilibrium configuration of very small magnetic flux tubes in an intergranular environment automatically produces kilogauss magnetic field strengths. We...
-
PublicationThermodynamic Coefficients for Stellar Atmospheres and Plasma Spectroscopy
A new method to obtain the thermodynamic coefficients in an analytic and exact form for applications in radiative and convective transport in thermodynamic...
-
PublicationThick Disks of Edge-on Galaxies Seen through the Spitzer Survey of Stellar Structure in Galaxies (S4G): Lair of Missing Baryons?
Most, if not all, disk galaxies have a thin (classical) disk and a thick disk. In most models thick disks are thought to be a necessary consequence of the disk...
-
PublicationThree Red Giants With Substellar-Mass Companions
We present three giant stars from the ongoing Penn State–Toruń Planet Search with the Hobby–Eberly Telescope, which exhibit radial velocity (RV) variations that...
-
PublicationThree-dimensional Plasmoid Evolution in the Solar Atmosphere
We present clear evidence of the formation of three-dimensional (3D) plasmoids in the current sheet between two magnetic flux systems in a 3D numerical...
-
PublicationThree-dimensional Propagation of Magnetohydrodynamic Waves in Solar Coronal Arcades
We numerically investigate the excitation and temporal evolution of oscillations in a two-dimensional coronal arcade by including the three-dimensional...
-
PublicationThree-dimensional Radiative Transfer Modeling of the Polarization of the Sun's Continuous Spectrum
Polarized light provides the most reliable source of information at our disposal for diagnosing the physical properties of astrophysical plasmas, including the...
-
PublicationThree-dimensional Radiative Transfer Simulations of the Scattering Polarization of the Hydrogen Lyα Line in a Magnetohydrodynamic Model of the Chromosphere–Corona Transition Region
Probing the magnetism of the upper solar chromosphere requires measuring and modeling the scattering polarization produced by anisotropic radiation pumping in...