417 citations · 939 across the 14 of their papers we have counts for
14 papers
Causality and Scientific Inquiry: Lessons from Space Physics and Medical Sciences
Marzieh Asgari-Targhi, Amene Asgari-Targhi, Mahboubeh Asgari-Targhi +2
Over the past two decades, the rapid surge in data-intensive computational techniques for statistical modeling may have had the effect of diminishing the use of applied mathematics…
Convection-Driven Multi-Scale Magnetic Fields Determine the Observed Solar-Disk Gamma Rays
Jung-Tsung Li, Mahboubeh Asgari-Targhi, John F. Beacom +1
The solar disk is a continuous source of GeV--TeV gamma rays. The emission is thought to originate from hadronic Galactic cosmic rays (GCRs) interacting with the gas in the photosp…
Observations of Non-thermal Velocity and Comparison with Alfvén Wave Turbulence Model in Solar Active Regions
M. Asgari-Targhi, D. H. Brooks, M. Hahn +3
We present a study of spectral line width measurements from the Extreme Ultraviolet Imaging Spectrometer (EIS) on {\it Hinode}. We used spectral line profiles of Fe {\sc xvi} 262.9…
Are Non-thermal Velocities in Active Region Coronal Loops Anisotropic?
Michael Hahn, Mahboubeh Asgari-Targhi, Daniel Wolf Savin
We have measured line widths in active region coronal loops in order to determine whether the non-thermal broadening is anisotropic with respect to the magnetic field direction. Th…
Dropouts of Fully Stripped Ions in the Solar Wind: A Diagnostic for Wave Heating versus Reconnection
John C. Raymond, M. Asgari-Targhi, Maurice L. Wilson +3
The SWICS instrument aboard the ACE satellite has detected frequent intervals in the slow solar wind and interplanetary coronal mass ejections (ICMEs) in which C6+ and other fully…
Probing the physics of the solar atmosphere with the Multi-slit Solar Explorer (MUSE): I. Coronal Heating
Bart De Pontieu, Paola Testa, Juan Martinez-Sykora +24
The Multi-slit Solar Explorer (MUSE) is a proposed NASA MIDEX mission, currently in Phase A, composed of a multi-slit EUV spectrograph (in three narrow spectral bands centered arou…
The strength and structure of the magnetic field in the galactic outflow of M82
Enrique Lopez-Rodriguez, Jordan Guerra, Mahboubeh Asgari-Targhi +1
Galactic outflows driven by starbursts can modify the galactic magnetic fields and drive them away from the galactic planes. Here, we quantify how these fields may magnetize the in…
The Role of the Critical Ionization Velocity Effect in Interstellar Space and the Derived Abundance of Helium
Gerrit L. Verschuur, Joan T. Schmelz, Mahboubeh Asgari-Targhi
Gaussian analysis of new, high-angular-resolution interstellar 21-cm neutral hydrogen emission profile structure more clearly reveals the presence of the previously reported signat…
Three-dimensional simulation of the fast solar wind driven by compressible magnetohydrodynamic turbulence
Munehito Shoda, Takeru Ken Suzuki, Mahboubeh Asgari-Targhi +1
Using a three-dimensional compressible magnetohydrodynamic (MHD) simulation, we have reproduced the fast solar wind in a direct and self-consistent manner, based on the wave/turbul…
The Heating of Solar Coronal Loops by Alfven Wave Turbulence
Adriaan A. van Ballegooijen, Mahboubeh Asgari-Targhi, Alexander Voss
In this paper we further develop a model for the heating of coronal loops by Alfven wave turbulence (AWT). The Alfven waves are assumed to be launched from a collection of kilogaus…
Direct and Inverse Cascades in the Acceleration Region of the Fast Solar Wind
Adriaan A. van Ballegooijen, Mahboubeh Asgari-Targhi
Alfvén waves are believed to play an important role in the heating and acceleration of the fast solar wind emanating from coronal holes. Nonlinear interactions between the dominant…
Heating and Acceleration of the Fast Solar Wind by Alfvén Wave Turbulence
A. A. van Ballegooijen, M. Asgari-Targhi
We present numerical simulations of reduced magnetohydrodynamic (RMHD) turbulence in a magnetic flux tube at the center of a polar coronal hole. The model for the background atmosp…
The Role of Turbulence in Coronal Heating and Solar Wind Expansion
S. R. Cranmer, M. Asgari-Targhi, M. P. Miralles +4
Plasma in the Sun's hot corona expands into the heliosphere as a supersonic and highly magnetized solar wind. This paper provides an overview of our current understanding of how th…
Heating of the Solar Chromosphere and Corona by Alfven Wave Turbulence
A. A. van Ballegooijen, M. Asgari-Targhi, S. R. Cranmer +1
A three-dimensional MHD model for the propagation and dissipation of Alfven waves in a coronal loop is developed. The model includes the lower atmospheres at the two ends of the lo…