A Bright Short Period M-M Eclipsing Binary from the KELT Survey: Magnetic Activity and the Mass–Radius Relationship for M Dwarfs

Autores: Lubin, Jack B.; Rodriguez, Joseph E.; Zhou, George; Conroy, Kyle E.; Stassun, Keivan G.; Collins, Karen; Stevens, Daniel J.; Labadie-Bartz, Jonathan; Stockdale, Christopher; Myers, Gordon; Colón, Knicole D.; Bento, Joao; Kehusmaa, Petri; Petrucci, Romina Paola; Jofre, Jorge Emiliano; Quinn, Samuel N.; Lund, Michael B.; Kuhn, Rudolf B.; Siverd, Robert J.; Beatty, Thomas G.; Harlingten, Caisey; Pepper, Joshua; Gaudi, B. Scott; James, David; Jensen, Eric L. N.; Reichart, Daniel; Kedziora-Chudczer, Lucyna; Bailey, Jeremy; Melville, Graeme
Año de publicación: 2017
Idioma: inglés
Tipo de recurso: artículo
Estado: versión publicada
Descripción: We report the discovery of KELT J041621-620046, a moderately bright (J ? 10.2) M-dwarf eclipsing binary system at a distance of 39 ± 3 pc. KELT J041621-620046 was first identified as an eclipsing binary using observations from the Kilodegree Extremely Little Telescope (KELT) survey. The system has a short orbital period of ?1.11 days and consists of components with {M}1={0.447}+0.052-0.047 {M}⊙ and {M}2={0.399}+0.046-0.042 {M}⊙ in nearly circular orbits. The radii of the two stars are {R}1={0.540}+0.034-0.032 {R}⊙ and {ext{}}{R}2=0.453+/- 0.017 {R}⊙ . Full system and orbital properties were determined (to ?10% error) by conducting an EBOP (Eclipsing Binary Orbit Program) global modeling of the high precision photometric and spectroscopic observations obtained by the KELT Follow-up Network. Each star is larger by 17%-28% and cooler by 4%-10% than predicted by standard (non-magnetic) stellar models. Strong Hα emission indicates chromospheric activity in both stars. The observed radii and temperature discrepancies for both components are more consistent with those predicted by empirical relations that account for convective suppression due to magnetic activity.
Fil: Lubin, Jack B.. Vanderbilt University; Estados Unidos
Fil: Rodriguez, Joseph E.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Zhou, George. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Conroy, Kyle E.. Vanderbilt University; Estados Unidos
Fil: Stassun, Keivan G.. Vanderbilt University; Estados Unidos
Fil: Collins, Karen. Vanderbilt University; Estados Unidos
Fil: Stevens, Daniel J.. Ohio State University; Estados Unidos
Fil: Labadie-Bartz, Jonathan. Lehigh University; Estados Unidos
Fil: Stockdale, Christopher. American Association of Variable Star Observers; Estados Unidos. Hazelwood Observatory; Australia
Fil: Myers, Gordon. American Association of Variable Star Observers; Estados Unidos. 5 Inverness Way; Estados Unidos
Fil: Colón, Knicole D.. NASA Goddard Space Flight Center; Estados Unidos
Fil: Bento, Joao. Research School of Astronomy and Astrophysics; Australia
Fil: Kehusmaa, Petri. Searchlight Observatory Network; Chile
Fil: Petrucci, Romina Paola. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Departamento de Astrofísica Estelar; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: Jofre, Jorge Emiliano. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: Quinn, Samuel N.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Lund, Michael B.. Vanderbilt University; Estados Unidos
Fil: Kuhn, Rudolf B.. South African Astronomical Observatory; Sudáfrica
Fil: Siverd, Robert J.. Las Cumbres Observatory Global Telescope Network; Estados Unidos
Fil: Beatty, Thomas G.. The Pennsylvania State University; Estados Unidos
Fil: Harlingten, Caisey. Harlingten San Pedro de Atacama Observatory; Estados Unidos
Fil: Pepper, Joshua. Lehigh University; Estados Unidos
Fil: Gaudi, B. Scott. The Ohio State University; Estados Unidos
Fil: James, David. University of Washington; Estados Unidos
Fil: Jensen, Eric L. N.. Swarthmore College; Estados Unidos
Fil: Reichart, Daniel. University of North Carolina; Estados Unidos
Fil: Kedziora-Chudczer, Lucyna. University of New South Wales; Australia
Fil: Bailey, Jeremy. University of New South Wales; Australia
Fil: Melville, Graeme. University of New South Wales; Australia
Materia: ECLIPSING BINARIES
LOW-MASS STARS
Nivel de accesibilidad: acceso abierto
Condiciones de uso: https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
Institución: Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador: oai:ri.conicet.gov.ar:11336/76268

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spelling	A Bright Short Period M-M Eclipsing Binary from the KELT Survey: Magnetic Activity and the Mass–Radius Relationship for M DwarfsLubin, Jack B.Rodriguez, Joseph E.Zhou, GeorgeConroy, Kyle E.Stassun, Keivan G.Collins, KarenStevens, Daniel J.Labadie-Bartz, JonathanStockdale, ChristopherMyers, GordonColón, Knicole D.Bento, JoaoKehusmaa, PetriPetrucci, Romina PaolaJofre, Jorge EmilianoQuinn, Samuel N.Lund, Michael B.Kuhn, Rudolf B.Siverd, Robert J.Beatty, Thomas G.Harlingten, CaiseyPepper, JoshuaGaudi, B. ScottJames, DavidJensen, Eric L. N.Reichart, DanielKedziora-Chudczer, LucynaBailey, JeremyMelville, GraemeECLIPSING BINARIESLOW-MASS STARSWe report the discovery of KELT J041621-620046, a moderately bright (J ? 10.2) M-dwarf eclipsing binary system at a distance of 39 ± 3 pc. KELT J041621-620046 was first identified as an eclipsing binary using observations from the Kilodegree Extremely Little Telescope (KELT) survey. The system has a short orbital period of ?1.11 days and consists of components with {M}1={0.447}+0.052-0.047 {M}⊙ and {M}2={0.399}+0.046-0.042 {M}⊙ in nearly circular orbits. The radii of the two stars are {R}1={0.540}+0.034-0.032 {R}⊙ and {ext{}}{R}2=0.453+/- 0.017 {R}⊙ . Full system and orbital properties were determined (to ?10% error) by conducting an EBOP (Eclipsing Binary Orbit Program) global modeling of the high precision photometric and spectroscopic observations obtained by the KELT Follow-up Network. Each star is larger by 17%-28% and cooler by 4%-10% than predicted by standard (non-magnetic) stellar models. Strong Hα emission indicates chromospheric activity in both stars. The observed radii and temperature discrepancies for both components are more consistent with those predicted by empirical relations that account for convective suppression due to magnetic activity.Fil: Lubin, Jack B.. Vanderbilt University; Estados UnidosFil: Rodriguez, Joseph E.. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Zhou, George. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Conroy, Kyle E.. Vanderbilt University; Estados UnidosFil: Stassun, Keivan G.. Vanderbilt University; Estados UnidosFil: Collins, Karen. Vanderbilt University; Estados UnidosFil: Stevens, Daniel J.. Ohio State University; Estados UnidosFil: Labadie-Bartz, Jonathan. Lehigh University; Estados UnidosFil: Stockdale, Christopher. American Association of Variable Star Observers; Estados Unidos. Hazelwood Observatory; AustraliaFil: Myers, Gordon. American Association of Variable Star Observers; Estados Unidos. 5 Inverness Way; Estados UnidosFil: Colón, Knicole D.. NASA Goddard Space Flight Center; Estados UnidosFil: Bento, Joao. Research School of Astronomy and Astrophysics; AustraliaFil: Kehusmaa, Petri. Searchlight Observatory Network; ChileFil: Petrucci, Romina Paola. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Departamento de Astrofísica Estelar; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; ArgentinaFil: Jofre, Jorge Emiliano. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; ArgentinaFil: Quinn, Samuel N.. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Lund, Michael B.. Vanderbilt University; Estados UnidosFil: Kuhn, Rudolf B.. South African Astronomical Observatory; SudáfricaFil: Siverd, Robert J.. Las Cumbres Observatory Global Telescope Network; Estados UnidosFil: Beatty, Thomas G.. The Pennsylvania State University; Estados UnidosFil: Harlingten, Caisey. Harlingten San Pedro de Atacama Observatory; Estados UnidosFil: Pepper, Joshua. Lehigh University; Estados UnidosFil: Gaudi, B. Scott. The Ohio State University; Estados UnidosFil: James, David. University of Washington; Estados UnidosFil: Jensen, Eric L. N.. Swarthmore College; Estados UnidosFil: Reichart, Daniel. University of North Carolina; Estados UnidosFil: Kedziora-Chudczer, Lucyna. University of New South Wales; AustraliaFil: Bailey, Jeremy. University of New South Wales; AustraliaFil: Melville, Graeme. University of New South Wales; AustraliaIOP Publishing2017-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/76268Lubin, Jack B.; Rodriguez, Joseph E.; Zhou, George; Conroy, Kyle E.; Stassun, Keivan G.; et al.; A Bright Short Period M-M Eclipsing Binary from the KELT Survey: Magnetic Activity and the Mass–Radius Relationship for M Dwarfs; IOP Publishing; Astrophysical Journal; 844; 2; 7-20170004-637X1538-4357CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4357/aa7947/metainfo:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/aa7947info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:22:54Zoai:ri.conicet.gov.ar:11336/76268instacron: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 10:22:54.562CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv	A Bright Short Period M-M Eclipsing Binary from the KELT Survey: Magnetic Activity and the Mass–Radius Relationship for M Dwarfs
title	A Bright Short Period M-M Eclipsing Binary from the KELT Survey: Magnetic Activity and the Mass–Radius Relationship for M Dwarfs
spellingShingle	A Bright Short Period M-M Eclipsing Binary from the KELT Survey: Magnetic Activity and the Mass–Radius Relationship for M Dwarfs Lubin, Jack B. ECLIPSING BINARIES LOW-MASS STARS
title_short	A Bright Short Period M-M Eclipsing Binary from the KELT Survey: Magnetic Activity and the Mass–Radius Relationship for M Dwarfs
title_full	A Bright Short Period M-M Eclipsing Binary from the KELT Survey: Magnetic Activity and the Mass–Radius Relationship for M Dwarfs
title_fullStr	A Bright Short Period M-M Eclipsing Binary from the KELT Survey: Magnetic Activity and the Mass–Radius Relationship for M Dwarfs
title_full_unstemmed	A Bright Short Period M-M Eclipsing Binary from the KELT Survey: Magnetic Activity and the Mass–Radius Relationship for M Dwarfs
title_sort	A Bright Short Period M-M Eclipsing Binary from the KELT Survey: Magnetic Activity and the Mass–Radius Relationship for M Dwarfs
dc.creator.none.fl_str_mv	Lubin, Jack B. Rodriguez, Joseph E. Zhou, George Conroy, Kyle E. Stassun, Keivan G. Collins, Karen Stevens, Daniel J. Labadie-Bartz, Jonathan Stockdale, Christopher Myers, Gordon Colón, Knicole D. Bento, Joao Kehusmaa, Petri Petrucci, Romina Paola Jofre, Jorge Emiliano Quinn, Samuel N. Lund, Michael B. Kuhn, Rudolf B. Siverd, Robert J. Beatty, Thomas G. Harlingten, Caisey Pepper, Joshua Gaudi, B. Scott James, David Jensen, Eric L. N. Reichart, Daniel Kedziora-Chudczer, Lucyna Bailey, Jeremy Melville, Graeme
author	Lubin, Jack B.
author_facet	Lubin, Jack B. Rodriguez, Joseph E. Zhou, George Conroy, Kyle E. Stassun, Keivan G. Collins, Karen Stevens, Daniel J. Labadie-Bartz, Jonathan Stockdale, Christopher Myers, Gordon Colón, Knicole D. Bento, Joao Kehusmaa, Petri Petrucci, Romina Paola Jofre, Jorge Emiliano Quinn, Samuel N. Lund, Michael B. Kuhn, Rudolf B. Siverd, Robert J. Beatty, Thomas G. Harlingten, Caisey Pepper, Joshua Gaudi, B. Scott James, David Jensen, Eric L. N. Reichart, Daniel Kedziora-Chudczer, Lucyna Bailey, Jeremy Melville, Graeme
author_role	author
author2	Rodriguez, Joseph E. Zhou, George Conroy, Kyle E. Stassun, Keivan G. Collins, Karen Stevens, Daniel J. Labadie-Bartz, Jonathan Stockdale, Christopher Myers, Gordon Colón, Knicole D. Bento, Joao Kehusmaa, Petri Petrucci, Romina Paola Jofre, Jorge Emiliano Quinn, Samuel N. Lund, Michael B. Kuhn, Rudolf B. Siverd, Robert J. Beatty, Thomas G. Harlingten, Caisey Pepper, Joshua Gaudi, B. Scott James, David Jensen, Eric L. N. Reichart, Daniel Kedziora-Chudczer, Lucyna Bailey, Jeremy Melville, Graeme
author2_role	author author author author author author author author author author author author author author author author author author author author author author author author author author author author
dc.subject.none.fl_str_mv	ECLIPSING BINARIES LOW-MASS STARS
topic	ECLIPSING BINARIES LOW-MASS STARS
dc.description.none.fl_txt_mv	We report the discovery of KELT J041621-620046, a moderately bright (J ? 10.2) M-dwarf eclipsing binary system at a distance of 39 ± 3 pc. KELT J041621-620046 was first identified as an eclipsing binary using observations from the Kilodegree Extremely Little Telescope (KELT) survey. The system has a short orbital period of ?1.11 days and consists of components with {M}1={0.447}+0.052-0.047 {M}⊙ and {M}2={0.399}+0.046-0.042 {M}⊙ in nearly circular orbits. The radii of the two stars are {R}1={0.540}+0.034-0.032 {R}⊙ and {ext{}}{R}2=0.453+/- 0.017 {R}⊙ . Full system and orbital properties were determined (to ?10% error) by conducting an EBOP (Eclipsing Binary Orbit Program) global modeling of the high precision photometric and spectroscopic observations obtained by the KELT Follow-up Network. Each star is larger by 17%-28% and cooler by 4%-10% than predicted by standard (non-magnetic) stellar models. Strong Hα emission indicates chromospheric activity in both stars. The observed radii and temperature discrepancies for both components are more consistent with those predicted by empirical relations that account for convective suppression due to magnetic activity. Fil: Lubin, Jack B.. Vanderbilt University; Estados Unidos Fil: Rodriguez, Joseph E.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Zhou, George. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Conroy, Kyle E.. Vanderbilt University; Estados Unidos Fil: Stassun, Keivan G.. Vanderbilt University; Estados Unidos Fil: Collins, Karen. Vanderbilt University; Estados Unidos Fil: Stevens, Daniel J.. Ohio State University; Estados Unidos Fil: Labadie-Bartz, Jonathan. Lehigh University; Estados Unidos Fil: Stockdale, Christopher. American Association of Variable Star Observers; Estados Unidos. Hazelwood Observatory; Australia Fil: Myers, Gordon. American Association of Variable Star Observers; Estados Unidos. 5 Inverness Way; Estados Unidos Fil: Colón, Knicole D.. NASA Goddard Space Flight Center; Estados Unidos Fil: Bento, Joao. Research School of Astronomy and Astrophysics; Australia Fil: Kehusmaa, Petri. Searchlight Observatory Network; Chile Fil: Petrucci, Romina Paola. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Departamento de Astrofísica Estelar; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina Fil: Jofre, Jorge Emiliano. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina Fil: Quinn, Samuel N.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Lund, Michael B.. Vanderbilt University; Estados Unidos Fil: Kuhn, Rudolf B.. South African Astronomical Observatory; Sudáfrica Fil: Siverd, Robert J.. Las Cumbres Observatory Global Telescope Network; Estados Unidos Fil: Beatty, Thomas G.. The Pennsylvania State University; Estados Unidos Fil: Harlingten, Caisey. Harlingten San Pedro de Atacama Observatory; Estados Unidos Fil: Pepper, Joshua. Lehigh University; Estados Unidos Fil: Gaudi, B. Scott. The Ohio State University; Estados Unidos Fil: James, David. University of Washington; Estados Unidos Fil: Jensen, Eric L. N.. Swarthmore College; Estados Unidos Fil: Reichart, Daniel. University of North Carolina; Estados Unidos Fil: Kedziora-Chudczer, Lucyna. University of New South Wales; Australia Fil: Bailey, Jeremy. University of New South Wales; Australia Fil: Melville, Graeme. University of New South Wales; Australia
description	We report the discovery of KELT J041621-620046, a moderately bright (J ? 10.2) M-dwarf eclipsing binary system at a distance of 39 ± 3 pc. KELT J041621-620046 was first identified as an eclipsing binary using observations from the Kilodegree Extremely Little Telescope (KELT) survey. The system has a short orbital period of ?1.11 days and consists of components with {M}1={0.447}+0.052-0.047 {M}⊙ and {M}2={0.399}+0.046-0.042 {M}⊙ in nearly circular orbits. The radii of the two stars are {R}1={0.540}+0.034-0.032 {R}⊙ and {ext{}}{R}2=0.453+/- 0.017 {R}⊙ . Full system and orbital properties were determined (to ?10% error) by conducting an EBOP (Eclipsing Binary Orbit Program) global modeling of the high precision photometric and spectroscopic observations obtained by the KELT Follow-up Network. Each star is larger by 17%-28% and cooler by 4%-10% than predicted by standard (non-magnetic) stellar models. Strong Hα emission indicates chromospheric activity in both stars. The observed radii and temperature discrepancies for both components are more consistent with those predicted by empirical relations that account for convective suppression due to magnetic activity.
publishDate	2017
dc.date.none.fl_str_mv	2017-07
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/11336/76268 Lubin, Jack B.; Rodriguez, Joseph E.; Zhou, George; Conroy, Kyle E.; Stassun, Keivan G.; et al.; A Bright Short Period M-M Eclipsing Binary from the KELT Survey: Magnetic Activity and the Mass–Radius Relationship for M Dwarfs; IOP Publishing; Astrophysical Journal; 844; 2; 7-2017 0004-637X 1538-4357 CONICET Digital CONICET
url	http://hdl.handle.net/11336/76268
identifier_str_mv	Lubin, Jack B.; Rodriguez, Joseph E.; Zhou, George; Conroy, Kyle E.; Stassun, Keivan G.; et al.; A Bright Short Period M-M Eclipsing Binary from the KELT Survey: Magnetic Activity and the Mass–Radius Relationship for M Dwarfs; IOP Publishing; Astrophysical Journal; 844; 2; 7-2017 0004-637X 1538-4357 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://iopscience.iop.org/article/10.3847/1538-4357/aa7947/meta info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/aa7947
dc.rights.none.fl_str_mv	info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
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rights_invalid_str_mv	https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv	application/pdf application/pdf
dc.publisher.none.fl_str_mv	IOP Publishing
publisher.none.fl_str_mv	IOP Publishing
dc.source.none.fl_str_mv	reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas
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repository.mail.fl_str_mv	dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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A Bright Short Period M-M Eclipsing Binary from the KELT Survey: Magnetic Activity and the Mass–Radius Relationship for M Dwarfs

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