Seismic Ripple Anisotropy on the photosphere: observed, simulated, explained

Research output: Contribution to conferenceAbstractpeer-review

Abstract

Based on observations of seismic ripples generated by solar flares, we performed simulations of different configurations/ morphologies of acoustic structures at the "epicenter" of the sunquake, The production of seismic waves is caused by spatially confined, high impacts into the solar photosphere, inflicted during the impulsive phase of solar flares.An interesting characteristic feature of the seismic response of most sunquakes is a considerable anisotropy in acoustic amplitude of the ripples from the vantage of the source, the acoustic emission is much stronger in some directions than others.We have produced a catalogue of simulations showing varying degrees of wave front anisotropy. Due to the large number of parameters that have potential for variation within the code, an innumerable number of cases have the capacity to be constructed. The governing limits of variation for each parameter will therefore be restricted to those of real life physical situations that have either been observed or strongly proposed. I will present the most conclusive cases of our work, which elucidate some of the unsolved clues about sunquakes and their ripples.
Original languageEnglish
Pages20-21
Number of pages2
Publication statusPublished - May 2016
EventAmerican Astronomical Society, Solar Physics Division meeting 2016 - Boulder, United States of America
Duration: 31 May 20163 Jun 2016
https://www-dev.nso.edu/SPD2016

Conference

ConferenceAmerican Astronomical Society, Solar Physics Division meeting 2016
Country/TerritoryUnited States of America
CityBoulder
Period31/05/163/06/16
Internet address

Cite this