Artículo
The Mega-MUSCLES Spectral Energy Distribution of TRAPPIST-1
Wilson, David J.; Froning, Cynthia S.; Duvvuri, Girish M.; France, Kevin; Youngblood, Allison; Schneider, P. Christian; Berta Thompson, Zachory; Brown, Alexander; Buccino, Andrea Paola
; Hawley, Suzanne; Irwin, Jonathan; Kaltenegger, Lisa; Kowalski, Adam; Linsky, Jeffrey; Parke Loyd, Robert O.; Miguel, Yamila
; Pineda, J. Sebastian; Redfield, Seth; Roberge, Aki; Rugheimer, Sarah; Tian, Feng; Vieytes, Mariela Cristina
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Fecha de publicación:
04/2021
Editorial:
IOP Publishing
Revista:
Astrophysical Journal
ISSN:
0004-637X
e-ISSN:
1538-4357
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We present a 5 Å-100 μm spectral energy distribution (SED) of the ultracool dwarf star TRAPPIST-1, obtained as part of the Mega-MUSCLES Treasury Survey. The SED combines ultraviolet and blue-optical spectroscopy obtained with the Hubble Space Telescope, X-ray spectroscopy obtained with XMM-Newton, and models of the stellar photosphere, chromosphere, transition region, and corona. A new differential emission measure model of the unobserved extreme-ultraviolet spectrum is provided, improving on the Lyα-EUV relations often used to estimate the 100-911 Å flux from low-mass stars. We describe the observations and models used, as well as the recipe for combining them into an SED. We also provide a semiempirical, noise-free model of the stellar ultraviolet spectrum based on our observations for use in atmospheric modeling of the TRAPPIST-1 planets.
Palabras clave:
M dwarf stars
,
Exoplanet astronomy
,
Exoplanet atmospheres
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Articulos(IAFE)
Articulos de INST.DE ASTRONOMIA Y FISICA DEL ESPACIO(I)
Articulos de INST.DE ASTRONOMIA Y FISICA DEL ESPACIO(I)
Citación
Wilson, David J.; Froning, Cynthia S.; Duvvuri, Girish M.; France, Kevin; Youngblood, Allison; et al.; The Mega-MUSCLES Spectral Energy Distribution of TRAPPIST-1; IOP Publishing; Astrophysical Journal; 911; 1; 4-2021; 1-16
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