An experimental study of the biological impact of a superflare on the TRAPPIST-1 planets

Autores
Abrevaya, Ximena Celeste; Odert, P.; Oppezzo, O. J.; Leitzinger, M.; Luna, Gerardo Juan Manuel; Guenther, E; Patel, M. R.; Hanslmeier, A.
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this study, we conducted experiments to assess the biological effects of high fluences of UV radiation (UVR) on the TRAPPIST-1 planetary system (planets e, f, g within the habitable zone), unlike previous estimates made by other authors which used theoretical approaches. To this end, we first calculated the UV fluxes at the orbits of the planets of the TRAPPIST-1 system during quiescent conditions and during a superflare. We then studied the effects of UVR on microbial life by exposing UV-tolerant (Deinococcus radiodurans) and UV-susceptible bacteria (Escherichia coli) to fluences equivalent to a superflare on the unshielded surface of these planets. Based on the results of our laboratory experiments, we have found a survival fraction of for D. radiodurans and a survival fraction below the limit of detection for E. coli at the surface of the planet e, which would receive the highest UVR flux. These survival fractions were higher for the planets f and g. In contrast to the results obtained by other authors which used theoretical estimates, we show that a fraction of the population of microorganisms could tolerate the high UVR fluences of a superflare on the surface of TRAPPIST-1 planets, even without any shielding such as that provided by an atmosphere or an ocean. Our study evidences the existence of methodological problems in theoretical approaches. It also emphasizes the importance of performing specifically designed biological experiments to predict microbial survival in extraterrestrial contexts.
Fil: Abrevaya, Ximena Celeste. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Odert, P.. University of Graz; Austria
Fil: Oppezzo, O. J.. Comisión Nacional de Energía Atómica; Argentina
Fil: Leitzinger, M.. University of Graz; Austria
Fil: Luna, Gerardo Juan Manuel. Universidad Nacional de Hurlingham.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Guenther, E. Thüringer Landessternwarte Tautenburg; Alemania
Fil: Patel, M. R.. The Open University; Reino Unido
Fil: Hanslmeier, A.. University of Graz; Austria
Materia
ASTROBIOLOGY
PLANETS AND SATELLITES: SURFACES
PLANETS AND SATELLITES: TERRESTRIAL PLANETS
STARS: ACTIVITY
STARS: FLARES
ULTRAVIOLET: STARS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/265895
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling An experimental study of the biological impact of a superflare on the TRAPPIST-1 planetsAbrevaya, Ximena CelesteOdert, P.Oppezzo, O. J.Leitzinger, M.Luna, Gerardo Juan ManuelGuenther, EPatel, M. R.Hanslmeier, A.ASTROBIOLOGYPLANETS AND SATELLITES: SURFACESPLANETS AND SATELLITES: TERRESTRIAL PLANETSSTARS: ACTIVITYSTARS: FLARESULTRAVIOLET: STARShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1In this study, we conducted experiments to assess the biological effects of high fluences of UV radiation (UVR) on the TRAPPIST-1 planetary system (planets e, f, g within the habitable zone), unlike previous estimates made by other authors which used theoretical approaches. To this end, we first calculated the UV fluxes at the orbits of the planets of the TRAPPIST-1 system during quiescent conditions and during a superflare. We then studied the effects of UVR on microbial life by exposing UV-tolerant (Deinococcus radiodurans) and UV-susceptible bacteria (Escherichia coli) to fluences equivalent to a superflare on the unshielded surface of these planets. Based on the results of our laboratory experiments, we have found a survival fraction of for D. radiodurans and a survival fraction below the limit of detection for E. coli at the surface of the planet e, which would receive the highest UVR flux. These survival fractions were higher for the planets f and g. In contrast to the results obtained by other authors which used theoretical estimates, we show that a fraction of the population of microorganisms could tolerate the high UVR fluences of a superflare on the surface of TRAPPIST-1 planets, even without any shielding such as that provided by an atmosphere or an ocean. Our study evidences the existence of methodological problems in theoretical approaches. It also emphasizes the importance of performing specifically designed biological experiments to predict microbial survival in extraterrestrial contexts.Fil: Abrevaya, Ximena Celeste. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Odert, P.. University of Graz; AustriaFil: Oppezzo, O. J.. Comisión Nacional de Energía Atómica; ArgentinaFil: Leitzinger, M.. University of Graz; AustriaFil: Luna, Gerardo Juan Manuel. Universidad Nacional de Hurlingham.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Guenther, E. Thüringer Landessternwarte Tautenburg; AlemaniaFil: Patel, M. R.. The Open University; Reino UnidoFil: Hanslmeier, A.. University of Graz; AustriaWiley Blackwell Publishing, Inc2024-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/265895Abrevaya, Ximena Celeste; Odert, P.; Oppezzo, O. J.; Leitzinger, M.; Luna, Gerardo Juan Manuel; et al.; An experimental study of the biological impact of a superflare on the TRAPPIST-1 planets; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 535; 2; 12-2024; 1616-16240035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/535/2/1616/7840392info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stae2433info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:40:48Zoai:ri.conicet.gov.ar:11336/265895instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:40:48.393CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv An experimental study of the biological impact of a superflare on the TRAPPIST-1 planets
title An experimental study of the biological impact of a superflare on the TRAPPIST-1 planets
spellingShingle An experimental study of the biological impact of a superflare on the TRAPPIST-1 planets
Abrevaya, Ximena Celeste
ASTROBIOLOGY
PLANETS AND SATELLITES: SURFACES
PLANETS AND SATELLITES: TERRESTRIAL PLANETS
STARS: ACTIVITY
STARS: FLARES
ULTRAVIOLET: STARS
title_short An experimental study of the biological impact of a superflare on the TRAPPIST-1 planets
title_full An experimental study of the biological impact of a superflare on the TRAPPIST-1 planets
title_fullStr An experimental study of the biological impact of a superflare on the TRAPPIST-1 planets
title_full_unstemmed An experimental study of the biological impact of a superflare on the TRAPPIST-1 planets
title_sort An experimental study of the biological impact of a superflare on the TRAPPIST-1 planets
dc.creator.none.fl_str_mv Abrevaya, Ximena Celeste
Odert, P.
Oppezzo, O. J.
Leitzinger, M.
Luna, Gerardo Juan Manuel
Guenther, E
Patel, M. R.
Hanslmeier, A.
author Abrevaya, Ximena Celeste
author_facet Abrevaya, Ximena Celeste
Odert, P.
Oppezzo, O. J.
Leitzinger, M.
Luna, Gerardo Juan Manuel
Guenther, E
Patel, M. R.
Hanslmeier, A.
author_role author
author2 Odert, P.
Oppezzo, O. J.
Leitzinger, M.
Luna, Gerardo Juan Manuel
Guenther, E
Patel, M. R.
Hanslmeier, A.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv ASTROBIOLOGY
PLANETS AND SATELLITES: SURFACES
PLANETS AND SATELLITES: TERRESTRIAL PLANETS
STARS: ACTIVITY
STARS: FLARES
ULTRAVIOLET: STARS
topic ASTROBIOLOGY
PLANETS AND SATELLITES: SURFACES
PLANETS AND SATELLITES: TERRESTRIAL PLANETS
STARS: ACTIVITY
STARS: FLARES
ULTRAVIOLET: STARS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this study, we conducted experiments to assess the biological effects of high fluences of UV radiation (UVR) on the TRAPPIST-1 planetary system (planets e, f, g within the habitable zone), unlike previous estimates made by other authors which used theoretical approaches. To this end, we first calculated the UV fluxes at the orbits of the planets of the TRAPPIST-1 system during quiescent conditions and during a superflare. We then studied the effects of UVR on microbial life by exposing UV-tolerant (Deinococcus radiodurans) and UV-susceptible bacteria (Escherichia coli) to fluences equivalent to a superflare on the unshielded surface of these planets. Based on the results of our laboratory experiments, we have found a survival fraction of for D. radiodurans and a survival fraction below the limit of detection for E. coli at the surface of the planet e, which would receive the highest UVR flux. These survival fractions were higher for the planets f and g. In contrast to the results obtained by other authors which used theoretical estimates, we show that a fraction of the population of microorganisms could tolerate the high UVR fluences of a superflare on the surface of TRAPPIST-1 planets, even without any shielding such as that provided by an atmosphere or an ocean. Our study evidences the existence of methodological problems in theoretical approaches. It also emphasizes the importance of performing specifically designed biological experiments to predict microbial survival in extraterrestrial contexts.
Fil: Abrevaya, Ximena Celeste. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Odert, P.. University of Graz; Austria
Fil: Oppezzo, O. J.. Comisión Nacional de Energía Atómica; Argentina
Fil: Leitzinger, M.. University of Graz; Austria
Fil: Luna, Gerardo Juan Manuel. Universidad Nacional de Hurlingham.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Guenther, E. Thüringer Landessternwarte Tautenburg; Alemania
Fil: Patel, M. R.. The Open University; Reino Unido
Fil: Hanslmeier, A.. University of Graz; Austria
description In this study, we conducted experiments to assess the biological effects of high fluences of UV radiation (UVR) on the TRAPPIST-1 planetary system (planets e, f, g within the habitable zone), unlike previous estimates made by other authors which used theoretical approaches. To this end, we first calculated the UV fluxes at the orbits of the planets of the TRAPPIST-1 system during quiescent conditions and during a superflare. We then studied the effects of UVR on microbial life by exposing UV-tolerant (Deinococcus radiodurans) and UV-susceptible bacteria (Escherichia coli) to fluences equivalent to a superflare on the unshielded surface of these planets. Based on the results of our laboratory experiments, we have found a survival fraction of for D. radiodurans and a survival fraction below the limit of detection for E. coli at the surface of the planet e, which would receive the highest UVR flux. These survival fractions were higher for the planets f and g. In contrast to the results obtained by other authors which used theoretical estimates, we show that a fraction of the population of microorganisms could tolerate the high UVR fluences of a superflare on the surface of TRAPPIST-1 planets, even without any shielding such as that provided by an atmosphere or an ocean. Our study evidences the existence of methodological problems in theoretical approaches. It also emphasizes the importance of performing specifically designed biological experiments to predict microbial survival in extraterrestrial contexts.
publishDate 2024
dc.date.none.fl_str_mv 2024-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/265895
Abrevaya, Ximena Celeste; Odert, P.; Oppezzo, O. J.; Leitzinger, M.; Luna, Gerardo Juan Manuel; et al.; An experimental study of the biological impact of a superflare on the TRAPPIST-1 planets; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 535; 2; 12-2024; 1616-1624
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/265895
identifier_str_mv Abrevaya, Ximena Celeste; Odert, P.; Oppezzo, O. J.; Leitzinger, M.; Luna, Gerardo Juan Manuel; et al.; An experimental study of the biological impact of a superflare on the TRAPPIST-1 planets; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 535; 2; 12-2024; 1616-1624
0035-8711
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/535/2/1616/7840392
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stae2433
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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