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SolO/EUI Observations of Ubiquitous Fine-scale Bright Dots in an Emerging Flux Region: Comparison with a Bifrost MHD Simulation

Authors :
Sanjiv K. Tiwari
Viggo H. Hansteen
Bart De Pontieu
Navdeep K. Panesar
David Berghmans
Publication Year :
2022

Abstract

We report on the presence of numerous tiny bright dots in and around an emerging flux region (an X-ray/coronal bright point) observed with SolO's EUI/\hri\ in 174 \AA. These dots are roundish, have a diameter of 675$\pm$300 km, a lifetime of 50$\pm$35 seconds, and an intensity enhancement of 30\% $\pm$10\% above their immediate surroundings. About half of the dots remain isolated during their evolution and move randomly and slowly ($<br />Comment: 28 pages, 17 figues; accepted for publication in ApJ

Details

Language :
English
ISSN :
0004637X
Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....f5626bcd4951ccac6d35b948d9cf3ce7