March 4, 2021
Virtual
America/New_York timezone

Special Seminar: Michael Hahn

Title: Alfven Wave Damping and Heating in the Solar Corona

Abstract: Understanding the heating of the solar corona has been considered one of the major problems in astrophysics for over 80 years. Wave-driven theories of coronal heating posit that photospheric convection generates plasma waves, particularly Alfven waves, which propagate along magnetic field lines into the corona where they are damped thereby transferring their energy to particle heating. Based on analyses of spectroscopic data, we have found that Alfven waves do carry sufficient energy to heat the corona and that the waves are damped efficiently at low heights. I will discuss our ongoing observational studies to understand the properties of solar Alfven waves as well as laboratory plasma experiments that aim to better understand the physics of Alfven wave damping in inhomogeneous plasmas similar to those in the solar corona.

Zoom Information:

Join from PC, Mac, Linux, iOS or Android: https://simonsfoundation.zoom.us/j/96891700138?pwd=cjFOMjhDbkxxYXhYN1ROeElETHBQQT09
    Passcode: 211356

Or Telephone:
    Dial(for higher quality, dial a number based on your current location): 
        US: +1 646 558 8656  or +1 301 715 8592  or +1 312 626 6799  or +1 669 900 6833  or +1 253 215 8782  or +1 346 248 7799 
    Meeting ID: 968 9170 0138
    Passcode: 211356
    International numbers available: https://simonsfoundation.zoom.us/u/a3U6zL5TA

Or an H.323 room system:
        162.255.36.11 (US East)
    Meeting ID: 968 9170 0138
    Passcode: 211356

Starts
Ends
America/New_York
Virtual