Interactions between reversed granulation, p-modes, and magnetism?

TL;DR

This paper studies the interaction of reversed granulation, p-modes, and magnetic features in the quiet Sun using high-resolution Hinode observations, revealing dynamic features with potential magnetic connections.

Contribution

It provides new high-resolution observations of transient features where reversed granulation interacts with p-modes and magnetism in the quiet Sun.

Findings

Features are co-spatial with reversed granulation and have sharper edges.

Features show fast brightness changes and are mainly above intergranular lanes.

Potential magnetic connection suggested by spatial distribution.

Abstract

We investigate features that are observed in Ca ii H sequences from Hinode in places where reversed granulation seems to interact with p-modes. These features appear ubiquitously in the quiet sun. They are co-spatial with reversed granulation, and display similar general properties, but have sharper edges and show fast brightness changes. They also appear predominantly above wide intergranular lanes, indicating a potential connection with magnetism. We report on the appearance and dynamics of these features using high-resolution, high-cadence observations from Hinode, and we discuss their possible origin.