Atmospheric models of flare stars: The flaring state of AD Leonis

We compute a set of semi-empirical atmospheric models for a large flare on the dMe star AD Leo, assuming different filling factors. These are the first models computed to match both the continuum observations, and a wide set of chromospheric spectral lines. We found that the models with a filling fa...

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Autores principales: Mauas, P.J.D., Falchi, A.
Formato: JOUR
Materias:
Stars: AD Leo
Stars: chromosphere
Stars: flare
Stars: late-type
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00046361_v310_n1_p245_Mauas
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00046361_v310_n1_p245_Mauas
record_format dspace
spelling todo:paper_00046361_v310_n1_p245_Mauas2023-10-03T13:59:48Z Atmospheric models of flare stars: The flaring state of AD Leonis Mauas, P.J.D. Falchi, A. Stars: AD Leo Stars: chromosphere Stars: flare Stars: late-type We compute a set of semi-empirical atmospheric models for a large flare on the dMe star AD Leo, assuming different filling factors. These are the first models computed to match both the continuum observations, and a wide set of chromospheric spectral lines. We found that the models with a filling factor between 1 and 5% give good agreement between the computed and observed spectral features. Since the main differences between the predicted and observed emission are in the continuum above 4500 Å and in Hα, simultaneous observations in these spectral features are needed to better determine the filling factor, and whether the area coverage of the flare depends on height. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00046361_v310_n1_p245_Mauas
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Stars: AD Leo
Stars: chromosphere
Stars: flare
Stars: late-type
spellingShingle Stars: AD Leo
Stars: chromosphere
Stars: flare
Stars: late-type
Mauas, P.J.D.
Falchi, A.
Atmospheric models of flare stars: The flaring state of AD Leonis
topic_facet Stars: AD Leo
Stars: chromosphere
Stars: flare
Stars: late-type
description We compute a set of semi-empirical atmospheric models for a large flare on the dMe star AD Leo, assuming different filling factors. These are the first models computed to match both the continuum observations, and a wide set of chromospheric spectral lines. We found that the models with a filling factor between 1 and 5% give good agreement between the computed and observed spectral features. Since the main differences between the predicted and observed emission are in the continuum above 4500 Å and in Hα, simultaneous observations in these spectral features are needed to better determine the filling factor, and whether the area coverage of the flare depends on height.
format JOUR
author Mauas, P.J.D.
Falchi, A.
author_facet Mauas, P.J.D.
Falchi, A.
author_sort Mauas, P.J.D.
title Atmospheric models of flare stars: The flaring state of AD Leonis
title_short Atmospheric models of flare stars: The flaring state of AD Leonis
title_full Atmospheric models of flare stars: The flaring state of AD Leonis
title_fullStr Atmospheric models of flare stars: The flaring state of AD Leonis
title_full_unstemmed Atmospheric models of flare stars: The flaring state of AD Leonis
title_sort atmospheric models of flare stars: the flaring state of ad leonis
url http://hdl.handle.net/20.500.12110/paper_00046361_v310_n1_p245_Mauas
work_keys_str_mv AT mauaspjd atmosphericmodelsofflarestarstheflaringstateofadleonis
AT falchia atmosphericmodelsofflarestarstheflaringstateofadleonis
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