Artículo

High stellar FUV/NUV ratio and oxygen contents in the atmospheres of potentially habitable planets

Tian, Feng; France, Kevin; Linsky, Jeffrey L.; Mauas, Pablo Jacobo DavidIcon ; Vieytes, Mariela CristinaIcon
Fecha de publicación: 01/2014
Editorial: Elsevier Science
Revista: Earth And Planetary Science Letters
ISSN: 0012-821X
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:

Resumen

Recent observations of several planet-hosting M dwarfs show that most have FUV/NUV flux ratios 1000 times greater than that of the Sun. Here we show that the atmospheric oxygen contents (O2 and O3) of potentially habitable planets in this type of UV environment could be 2–3 orders of magnitude greater than those of their counterparts around Sun-like stars as a result of decreased photolysis of O3, H2O2, and HO2. Thus detectable levels of atmospheric oxygen, in combination with the existence of H2O and CO2, may not be the most promising biosignatures on planets around stars with high FUV/NUV ratios such as the observed M dwarfs.
Palabras clave: Planetary Science
 
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/17555
URL: https://arxiv.org/abs/1310.2590
URL: http://www.sciencedirect.com/science/article/pii/S0012821X13005876
DOI: http://dx.doi.org/10.1016/j.epsl.2013.10.024
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Articulos(IAFE)
Articulos de INST.DE ASTRONOMIA Y FISICA DEL ESPACIO(I)
Citación
Tian, Feng; France, Kevin; Linsky, Jeffrey L.; Mauas, Pablo Jacobo David; Vieytes, Mariela Cristina; High stellar FUV/NUV ratio and oxygen contents in the atmospheres of potentially habitable planets; Elsevier Science; Earth And Planetary Science Letters; 385; 1-2014; 22-27
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