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Spatio-temporal Characterization of Hot Chromospheric Fibrils

Published online by Cambridge University Press:  28 September 2023

Parker Lamb ,
Gianna Cauzzi Open the ORCID record for Gianna Cauzzi [Opens in a new window]  and
Kevin Reardon
Parker Lamb
Affiliation:
National Solar Observatory, Boulder, CO 80303, USA Department of Physics, University of Colorado, Boulder, CO 80309, USA
Gianna Cauzzi
Affiliation:
National Solar Observatory, Boulder, CO 80303, USA INAF – Osservatorio Astrofisico di Arcetri, 50125 Firenze, Italy
Kevin Reardon
Affiliation:
National Solar Observatory, Boulder, CO 80303, USA Department of Astrophysics and Planetary Sciences, University of Colorado, Boulder, CO 80303, USA
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Abstract

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The exact mechanisms leading to chromospheric heating are still ill-defined. While the presence of magnetic elements is undoubtedly necessary, the details of the heating, and its spatio-temporal distribution remain poorly understood. We contribute to this topic by analyzing the behavior of hot chromospheric fibrils surrounding network and plage elements, identified via the broader Hα profiles observed along their length; the H-α spectral line width has been shown to correlate with the local chromospheric temperatures through comparison with the ALMA millimeter-continuum brightness temperature. We make use of loop tracing and analysis software to investigate characteristics of the chromospheric hot fibrils including their length, number density, and transverse spatial extension in an enhanced network region.

Keywords

Sun: chromosphereSun: faculaeplage
Type
Poster Paper
Information
Proceedings of the International Astronomical Union , Volume 18 , Symposium S372: The Era of Multi-Messenger Solar Physics , August 2022 , pp. 123 - 127
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Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

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