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| DOI | 10.1093/MNRAS/STV010 | ||||
| Año | 2015 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
We present the orbital and physical parameters of the detached eclipsing binary V1200 Centauri (ASAS J135218-3837.3) from the analysis of spectroscopic observations and light curves from the All-Sky Automated Survey (ASAS) and SuperWASP (Wide Angle Search for Planets) data base. The radial velocities were computed from the high-resolution spectra obtained with the OUC (Observatorio Universidad Catolica) 50-cm telescope and PUCHEROS (Pontificia Universidad Catolica High Echelle Resolution Optical Spectrograph) spectrograph and with 1.2-m Euler telescope and CORALIE spectrograph using the cross-correlation technique TODCOR. We found that the absolute parameters of the system are M-1 = 1.394 +/- 0.030 M-circle dot, M-2 = 0.866 +/- 0.015 M-circle dot, R1 = 1.39 +/- 0.15 R-circle dot, R2 = 1.10 +/- 0.25 R-circle dot. We investigated the evolutionary status and kinematics of the binary and our results indicate that V1200 Centauri is likely a member of the Hyades moving group, but the largely inflated secondary's radius may suggest that the system may be even younger, around 30 Myr. We also found that the eclipsing pair is orbited by another, stellar-mass object on a 351-d orbit, which is unusually short for hierarchical triples. This makes V1200 Cen a potentially interesting target for testing the formation models of multiple stars.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Coronado, Johanna | Mujer |
Pontificia Universidad Católica de Chile - Chile
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| 2 | Helminiak, K. G. | Hombre |
Pontificia Universidad Católica de Chile - Chile
Natl Inst Nat Sci - Estados Unidos Nicolaus Copernicus Astron Ctr - Polonia National Institutes of Natural Sciences - National Astronomical Observatory of Japan - Japón Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences - Polonia |
| 3 | Vanzi, Leonardo | Hombre |
Pontificia Universidad Católica de Chile - Chile
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| 4 | Espinoza, Nestor | Hombre |
Pontificia Universidad Católica de Chile - Chile
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| 5 | BRAHM-SCOTT, RAFAEL ANDRES | Hombre |
Pontificia Universidad Católica de Chile - Chile
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| 6 | JORDAN-COLZANI, ANDRES CRISTOBAL | Hombre |
Pontificia Universidad Católica de Chile - Chile
Instituto Milenio de Astrofísica - Chile Centro de Excelencia en Astrofísica y Tecnologías Afines - Chile |
| 7 | Catelan, Marcio | Hombre |
Pontificia Universidad Católica de Chile - Chile
Instituto Milenio de Astrofísica - Chile Centro de Excelencia en Astrofísica y Tecnologías Afines - Chile |
| 8 | Ratajczak, M. | Mujer |
Nicolaus Copernicus Astron Ctr - Polonia
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences - Polonia |
| 9 | Konacki, M. | Hombre |
Nicolaus Copernicus Astron Ctr - Polonia
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences - Polonia |
| Fuente |
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| FONDECYT |
| CONICYT-PCHA/Doctorado Nacional |
| Fondef |
| Proyecto Basal |
| Ministry for the Economy, Development, and Tourism's Programa Iniciativa Cientifica Milenio |
| Polish National Science Center |
| Conicyt through Fondecyt |
| Proyecto FONDECYT |
| Agradecimiento |
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| PUCHEROS was funded by CONICYT through project FONDECYT no. 1095187. JC acknowledges J. M. Fernandez for his assistance during all of the observations with PUCHEROS. KGH acknowledges support provided by the National Astronomical Observatory of Japan as Subaru Astronomical Research Fellow and the Proyecto FONDECYT Postdoctoral no. 3120153. LV acknowledges support by Fondecyt 1095187, 1130849 and FONDEF CA13I10203. NE and RB are supported by CONICYT-PCHA/Doctorado Nacional. We also acknowledge the support provided by the Polish National Science Center through grants 2011/03/N/ST9/01819, 2011/01/N/ST9/02209 and 5813/B/H03/2011/40. Support for AJ and MC is provided by the Ministry for the Economy, Development, and Tourism's Programa Iniciativa Cientifica Milenio through grant IC 120009, awarded to the Millennium Institute of Astrophysics (MAS), and by Proyecto Basal PFB-06/2007. MC acknowledges additional support by FONDECYT grant #1141141. |