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Departamento Gestión de Conocimiento, Monitoreo y Prospección
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A systematic method to identify runaways from star clusters produced from single-binary interactions: A case study of M67
Indexado
Scopus SCOPUS_ID:105006552775
DOI 10.1051/0004-6361/202451819
Año 2025
Tipo

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



Context. One hypothesis for runaway stars (RSs) is that they are ejected from star clusters with high velocities relative to the cluster center-of-mass motion. There are two competing mechanisms for their production: supernova-based ejections in binaries, where one companion explodes, leaves no remnant, and launches the other companion at the instantaneous orbital velocity, and the disintegration of triples (or higher-order multiples), which produces a recoiled runaway binary (RB) and an RS. Aims. We search for RS candidates using data from the Gaia DR3 survey with a focus on triple disintegration since in this case the product is always a binary and a single star that should be moving in opposite directions. Methods. We created a systematic methodology to look for candidate RS-RB runaway pairs produced from the disintegration of bound three-body systems formed from single-binary interactions based on momentum conservation and causality. The method we use is general and can be applied to any cluster with a 5D kinematic data set. We used our criteria to search for these pairs in a 150 pc circular field of view surrounding the open cluster M67, which we used as a benchmark cluster to test the robustness of our method. Results. Our results reveal only one RS-RB pair that is consistent with all of our selection criteria out of an initial sample of 108 pairs.

Revista



Revista ISSN
Astronomy & Astrophysics 0004-6361

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Disciplinas de Investigación



WOS
Astronomy & Astrophysics
Scopus
Sin Disciplinas
SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 Herrera-Urquieta, A. - Universidad de Concepción - Chile
2 Leigh, Nathan Hombre Universidad de Concepción - Chile
American Museum of Natural History - Estados Unidos
3 Pinto, J. - Universidad de Concepción - Chile
4 Díaz-Cerda, G. - Instituto Profesional Dr. Virginio Gómez - Chile
5 Grondin, S. M. - University of Toronto - Canadá
6 Webb, Jeremy J. Hombre University of Toronto - Canadá
7 Mathieu, Robert D. Hombre University of Wisconsin-Madison - Estados Unidos
8 Ryu, T. - Max Planck Institute for Astrophysics - Alemania
Johns Hopkins University - Estados Unidos
9 Geller, Aaron M. Hombre Northwestern University - Estados Unidos
10 Kounkel, Marina Mujer Vanderbilt University - Estados Unidos
11 Toonen, Silvia Mujer Anton Pannekoek Instituut voor Sterrenkunde - Países Bajos
12 Vilaxa-Campos, M. - Universidad de Concepción - Chile

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Financiamiento



Fuente
National Science Foundation
Millenium Nucleus
Natural Sciences and Engineering Research Council of Canada
Centro de Astrofísica y Tecnologías Afines
U.S. Department of State
Agencia Nacional de Investigación y Desarrollo
Fondecyt General
Millenium Nucleus NCN2023-002
ChileAmerican Fulbright Commission
Chile-American Fulbright Commission

Muestra la fuente de financiamiento declarada en la publicación.

Agradecimientos



Agradecimiento
AEHR acknowledges financial support from Millenium Nucleus NCN19_058 (TITANs). NWCL gratefully acknowledges the generous support of a Fondecyt General grant 1230082, as well as support from Millenium Nucleus NCN2023_002 (TITANs) and funding via the BASAL Centro de Excelencia en Astrofisica y Tecnologias Afines (CATA) grant PFB-06/2007. NWCL also thanks support from ANID BASAL project ACE210002 and ANID BASAL projects ACE210002 and FB210003. AMG acknowledges financial support from NSF AAG grant no. AST-2107738. SMG acknowledges the support of the Natural Sciences and Engineering Research Council of Canada (NSERC) and is partially funded through a NSERC Postgraduate Scholarship \u2013 Doctoral. RDM gratefully acknowledges financial support by the Fulbright U.S. Scholar Program, which is sponsored by the U.S. Department of State and the Chile-American Fulbright Commission. Its contents are solely the responsibility of the author and do not necessarily represent the official views of the sponsors.
AEHR acknowledges financial support from Millenium Nucleus NCN19-058 (TITANs). NWCL gratefully acknowledges the generous support of a Fondecyt General grant 1230082, as well as support from Millenium Nucleus NCN2023-002 (TITANs) and funding via the BASAL Centro de Excelencia en Astrofisica y Tecnologias Afines (CATA) grant PFB-06/2007. NWCL also thanks support from ANID BASAL project ACE210002 and ANID BASAL projects ACE210002 and FB210003. AMG acknowledges financial support from NSF AAG grant no. AST-2107738. SMG acknowledges the support of the Natural Sciences and Engineering Research Council of Canada (NSERC) and is partially funded through a NSERC Postgraduate Scholarship - Doctoral. RDM gratefully acknowledges financial support by the Fulbright U.S. Scholar Program, which is sponsored by the U.S. Department of State and the ChileAmerican Fulbright Commission. Its contents are solely the responsibility of the author and do not necessarily represent the official views of the sponsors.

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