My research interests include solar and stellar astrophysics. Specifically, I study the heating and energization of particles in the solar corona, the acceleration of the solar wind, and waves and turbulence in all kinds of astrophysical plasmas. Understanding the hot, expanding outer atmosphere of the Sun is a necessary precursor to being able to predict the Sun's long-term effects on the Earth's climate and local space environment. Other research includes radiative transfer in stellar atmospheres, kinetic plasma physics, the dynamics of winds from rotating hot (O, B, Wolf-Rayet) stars, and nonradial stellar pulsations.
Selected Recent Publications:
Cranmer, S. R. 2017, "Mass Loss Rates from Coronal Mass Ejections: A Predictive Theoretical Model for Solar-Type Stars," ApJ, 840, 114.
Schiff, A. J., and Cranmer, S. R. 2016, "Explaining Inverted-temperature Loops in the Quiet Solar Corona with Magnetohydrodynamic Wave-mode Conversion" ApJ, 831, 10.
Cranmer, S. R. 2014, "Suprathermal Electrons in the Solar Corona: Can Nonlocal Transport Explain Heliospheric Charge States?" ApJ Letters, 791, L31.