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| DOI | 10.1051/0004-6361/202142766 | ||||
| Año | 2022 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Young M-type binaries are particularly useful for precise isochronal dating by taking advantage of their extended pre-main sequence evolution. Orbital monitoring of these low-mass objects becomes essential in constraining their fundamental properties, as dynamical masses can be extracted from their Keplerian motion. Here, we present the combined efforts of the AstraLux Large Multiplicity Survey, together with a filler sub-programme from the SpHere INfrared Exoplanet (SHINE) project and previously unpublished data from the FastCam lucky imaging camera at the Nordical Optical Telescope (NOT) and the NaCo instrument at the Very Large Telescope (VLT). Building on previous work, we use archival and new astrometric data to constrain orbital parameters for 20 M-type binaries. We identify that eight of the binaries have strong Bayesian probabilities and belong to known young moving groups (YMGs). We provide a first attempt at constraining orbital parameters for 14 of the binaries in our sample, with the remaining six having previously fitted orbits for which we provide additional astrometric data and updated Gaia parallaxes. The substantial orbital information built up here for four of the binaries allows for direct comparison between individual dynamical masses and theoretical masses from stellar evolutionary model isochrones, with an additional three binary systems with tentative individual dynamical mass estimates likely to be improved in the near future. We attained an overall agreement between the dynamical masses and the theoretical masses from the isochrones based on the assumed YMG age of the respective binary pair. The two systems with the best orbital constrains for which we obtained individual dynamical masses, J0728 and J2317, display higher dynamical masses than predicted by evolutionary models.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Calissendorff, Per | - |
UNIV MICHIGAN - Estados Unidos
Stockholm Univ - Suecia University of Michigan, Ann Arbor - Estados Unidos Stockholms universitet - Suecia |
| 2 | Janson, M. | Hombre |
Stockholm Univ - Suecia
Stockholms universitet - Suecia |
| 3 | Rodet, L. | Mujer |
CORNELL UNIV - Estados Unidos
Cornell Center for Astrophysics and Planetary Science - Estados Unidos |
| 4 | Kohler, R. | Hombre |
Georgia State Univ - Estados Unidos
Georgia State University - Estados Unidos |
| 5 | Bonnefoy, M. | Hombre |
Univ Grenoble Alpes - Francia
Institut de Planétologie et d’Astrophysique de Grenoble (IPAG) - Francia |
| 6 | Brandner, W. | Hombre |
Max Planck Inst Astron - Alemania
Max Planck Institute for Astronomy - Alemania |
| 7 | Brown-Sevilla, Samantha | Mujer |
Max Planck Inst Astron - Alemania
Max Planck Institute for Astronomy - Alemania |
| 8 | Chauvin, Gael | Hombre |
Univ Grenoble Alpes - Francia
Universidad de Chile - Chile Institut de Planétologie et d’Astrophysique de Grenoble (IPAG) - Francia |
| 9 | Delorme, P. | Hombre |
Univ Grenoble Alpes - Francia
Institut de Planétologie et d’Astrophysique de Grenoble (IPAG) - Francia |
| 10 | Desidera, S. | Hombre |
Istituto Nazionale di Astrofisica - Italia
Osservatorio Astronomico di Padova - Italia INAF Osservatorio Astron Padova - Italia |
| 11 | Durkan, S. | Hombre |
Stockholm Univ - Suecia
Queens Univ Belfast - Reino Unido Stockholms universitet - Suecia Queen's University Belfast - Reino Unido |
| 12 | Fontanive, Clemence | - |
Univ Bern - Suiza
University of Bern - Suiza |
| 13 | Gratton, Raffaele | Hombre |
Istituto Nazionale di Astrofisica - Italia
Osservatorio Astronomico di Padova - Italia INAF Osservatorio Astron Padova - Italia |
| 14 | Hagelberg, J. | Mujer |
Univ Geneva - Suiza
Faculty of Science - Suiza |
| 15 | Henning, Thomas | Hombre |
Max Planck Inst Astron - Alemania
Max Planck Institute for Astronomy - Alemania |
| 16 | Hippler, Stefan | Hombre |
Max Planck Inst Astron - Alemania
Max Planck Institute for Astronomy - Alemania |
| 17 | Lagrange, A. -m. | Mujer |
Univ Grenoble Alpes - Francia
UNIV PARIS - Francia Institut de Planétologie et d’Astrophysique de Grenoble (IPAG) - Francia L'Observatoire de Paris - Francia |
| 18 | La Nglois, M. | Mujer |
Univ Lyon - Francia
Aix Marseille Univ - Francia Université de Lyon - Francia Laboratoire d'Astrophysique de Marseille - Francia |
| 19 | Lazzoni, C. | Mujer |
Istituto Nazionale di Astrofisica - Italia
Osservatorio Astronomico di Padova - Italia INAF Osservatorio Astron Padova - Italia |
| 20 | Maire, A. -L. | Mujer |
Max Planck Inst Astron - Alemania
Univ Liege - Bélgica Max Planck Institute for Astronomy - Alemania Universite de Liege - Bélgica |
| 21 | Messina, Sergio | Hombre |
Istituto Nazionale di Astrofisica - Italia
Osservatorio Astrofisico di Catania - Italia INAF Osservatorio Astrofis Catania - Italia |
| 22 | Merschmeyer, M. | Hombre |
UNIV MICHIGAN - Estados Unidos
University of Michigan, Ann Arbor - Estados Unidos |
| 23 | Moller-Nilsson, Ole | - |
Univ Geneva - Suiza
Faculty of Science - Suiza |
| 24 | Rabus, M. | Hombre |
Universidad Católica de la Santísima Concepción - Chile
|
| 25 | De Leon, Jerome P. | Hombre |
NASA - Estados Unidos
NASA Goddard Space Flight Center - Estados Unidos |
| 26 | Vigan, Arthur | Hombre |
Aix Marseille Univ - Francia
Laboratoire d'Astrophysique de Marseille - Francia |
| 27 | Wahhaj, Z. | Hombre |
ESO - Chile
European Southern Observatory Santiago - Chile European Southern Observ - Chile |
| 28 | Wildi, F. | - |
Univ Geneva - Suiza
Faculty of Science - Suiza |
| 29 | Zurlo, Alice | Mujer |
Aix Marseille Univ - Francia
Universidad Diego Portales - Chile Laboratoire d'Astrophysique de Marseille - Francia |
| Fuente |
|---|
| Knut and Alice Wallenberg Foundation |
| Knut och Alice Wallenbergs Stiftelse |
| Royal Swedish Academy of Sciences |
| Swedish Royal Academy |
| Northern Ireland Department of Education and Learning |
| Department of Education and Learning, Northern Ireland |
| Agradecimiento |
|---|
| The authors thank the anonymous referee for the comments which helped improve the paper. This project received funding by the Swedish Royal Academy (KVA). M.J. gratefully acknowledges funding from the Knut and Alice Wallenberg foundation. S.D. gratefully acknowledges support from the Northern Ireland Department of Education and Learning. This work has made use of data from the European Space Agency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium).Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. This work has made use of the SPHERE Data Centre, jointly operated by OSUG/IPAG (Grenoble), PYTHEAS/LAM/CeSAM (Marseille), OCA/Lagrange (Nice), Observatosire de Paris/LESIA (Paris), and Observatoire de Lyon/CRAL, |
| The authors thank the anonymous referee for the comments which helped improve the paper. This project received funding by the Swedish Royal Academy (KVA). M.J. gratefully acknowledges funding from the Knut and Alice Wallenberg foundation. S.D. gratefully acknowledges support from the Northern Ireland Department of Education and Learning. This work has made use of data from the European Space Agency (ESA) mission Gaia ( https://www.cosmos.esa.int/gaia ), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium ). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. This work has made use of the SPHERE Data Centre, jointly operated by OSUG/IPAG (Grenoble), PYTHEAS/LAM/CeSAM (Marseille), OCA/Lagrange (Nice), Observatosire de Paris/LESIA (Paris), and Observatoire de Lyon/CRAL, |