Exploration of long-period oscillations in an H alpha prominence

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F19%3A00517248" target="_blank" >RIV/67985815:_____/19:00517248 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1051/0004-6361/201833614" target="_blank" >https://doi.org/10.1051/0004-6361/201833614</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201833614" target="_blank" >10.1051/0004-6361/201833614</a>

Result language
angličtina
Original language name
Exploration of long-period oscillations in an H alpha prominence
Original language description
The aim of the present work is to assemble the two sequences of H alpha observations as a full data set lasting two hours to confirm the existence of oscillations, and determine their nature. After having coaligned the Doppler maps of the two sequences, we use a Scargle periodogram analysis and cosine fitting to compute the periods and the phase of the oscillations in the full data set. We conclude that the prominence does not oscillate as a whole structure but exhibits different areas with their own oscillation periods and characteristics: standing or propagating waves. We discuss the nature of the standing oscillations and the propagating waves. These can be interpreted in terms of gravito-acoustic modes and magnetosonic waves, respectively.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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