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χ1 Fornacis cluster DANCe Census of stars, structure, and kinematics of the cluster with Gaia-EDR3

Identificadores del recurso

0004-6361

1432-0746 (internet)

http://hdl.handle.net/10498/25892

10.1051/0004-6361/202141366

Procedencia

(Repositorio de Objetos de Docencia e Investigación: RODIN)

Ficha

Título:: χ1 Fornacis cluster DANCe Census of stars, structure, and kinematics of the cluster with Gaia-EDR3
Tema:: open clusters and associations: individual: Alessi 13; stars: formation; stars: distances; methods: statistical; parallaxes; proper motions
Descripción:: Context. The chi(1) Fornacis cluster (Alessi 13) is one of a few open clusters of its age and distance in the Solar neighbourhood that ought to benefit from more attention as it can serve as a cornerstone for numerous future studies related to star and planet formation. Aims. We take advantage of the early installment of the third data release of the Gaia space mission in combination with archival data and our own observations, to expand the census of cluster members and revisit some properties of the cluster. Methods. We applied a probabilistic method to infer membership probabilities over a field of more than 1000 deg(2) to select the most likely cluster members and derive the distances, spatial velocities, and physical properties of the stars in this sample. Results. We identify 164 high-probability cluster members (including 61 new members) covering the magnitude range from 5.1 to 19.6 mag in the G-band. Our sample of cluster members is complete down to 0.04 M-circle dot. We derive the distance of 108.4 +/- 0.3 pc from Bayesian inference and confirm that the cluster is comoving with the Tucana-Horologium, Columba, and Carina young stellar associations. We investigate the kinematics of the cluster from a subsample of stars with measured radial velocities and we do not detect any significant expansion or rotation effects in the cluster. Our results suggest that the cluster is somewhat younger (about 30 Myr) than previously thought. Based on spectroscopic observations, we argue that the cluster is mass-segregated and that the distribution of spectral types shows little variation compared to other young stellar groups. Conclusions. In this study, we deliver the most complete census of cluster members that can be done with Gaia data alone and we use this new sample to provide an updated picture on the 6D structure of the cluster.; This research has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (grant agreement No 682903, P.I. H. Bouy), and from the French State in the framework of the "Investments for the future" Program, IdEx Bordeaux, reference ANR-10-IDEX-03-02. This research has made use of the SIMBAD database, operated at CDS, Strasbourg, France. 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 publication makes use of data products from theWidefield Infrared Survey Explorer, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration. This publication makes use of VOSA, developed under the Spanish Virtual Observatory project supported by the Spanish MINECO through grant AyA2017-84089. VOSA has been partially updated by using funding from the European Union's Horizon 2020 Research and Innovation Programme, under Grant Agreement no 776403 (EXOPLANETS-A).
Fuente:: A&A 654, A122 (2021)
Idioma:: English
Relación:: info:eu-repo/grantAgreement/EC/H2020/682903/; info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2017-84089-P/ES/EL OBSERVATORIO VIRTUAL ESPAÑOL. EXPLOTACION CIENTIFICO-TECNICA DE ARCHIVOS ASTRONOMICOS/; info:eu-repo/grantAgreement/EC/H2020/776403/
Autor/Productor:: Galli, P. A. B.; Bouy, H.; Olivares, J.; Miret-Roig, N.; Sarro, L. M.; Barrado, D.; Berihuete Macías, Ángel
Editor:: EDP SCIENCES S A
Otros colaboradores/productores:: Estadística e Investigación Operativa
Derechos:: Atribución 4.0 Internacional; http://creativecommons.org/licenses/by/4.0/; open access
Fecha:: 2021-12-22T12:09:56Z; 2021-10
Tipo de recurso:: journal article
Formato:: application/pdf

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1. <dc:title>χ1 Fornacis cluster DANCe Census of stars, structure, and kinematics of the cluster with Gaia-EDR3</dc:title>
2. <dc:creator>Galli, P. A. B.</dc:creator>
3. <dc:creator>Bouy, H.</dc:creator>
4. <dc:creator>Olivares, J.</dc:creator>
5. <dc:creator>Miret-Roig, N.</dc:creator>
6. <dc:creator>Sarro, L. M.</dc:creator>
7. <dc:creator>Barrado, D.</dc:creator>
8. <dc:creator>Berihuete Macías, Ángel</dc:creator>
9. <dc:contributor>Estadística e Investigación Operativa</dc:contributor>
10. <dc:subject>open clusters and associations: individual: Alessi 13</dc:subject>
11. <dc:subject>stars: formation</dc:subject>
12. <dc:subject>stars: distances</dc:subject>
13. <dc:subject>methods: statistical</dc:subject>
14. <dc:subject>parallaxes</dc:subject>
15. <dc:subject>proper motions</dc:subject>
16. <dc:description>Context. The chi(1) Fornacis cluster (Alessi 13) is one of a few open clusters of its age and distance in the Solar neighbourhood that ought to benefit from more attention as it can serve as a cornerstone for numerous future studies related to star and planet formation. Aims. We take advantage of the early installment of the third data release of the Gaia space mission in combination with archival data and our own observations, to expand the census of cluster members and revisit some properties of the cluster. Methods. We applied a probabilistic method to infer membership probabilities over a field of more than 1000 deg(2) to select the most likely cluster members and derive the distances, spatial velocities, and physical properties of the stars in this sample. Results. We identify 164 high-probability cluster members (including 61 new members) covering the magnitude range from 5.1 to 19.6 mag in the G-band. Our sample of cluster members is complete down to 0.04 M-circle dot. We derive the distance of 108.4 +/- 0.3 pc from Bayesian inference and confirm that the cluster is comoving with the Tucana-Horologium, Columba, and Carina young stellar associations. We investigate the kinematics of the cluster from a subsample of stars with measured radial velocities and we do not detect any significant expansion or rotation effects in the cluster. Our results suggest that the cluster is somewhat younger (about 30 Myr) than previously thought. Based on spectroscopic observations, we argue that the cluster is mass-segregated and that the distribution of spectral types shows little variation compared to other young stellar groups. Conclusions. In this study, we deliver the most complete census of cluster members that can be done with Gaia data alone and we use this new sample to provide an updated picture on the 6D structure of the cluster.</dc:description>
17. <dc:description>This research has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (grant agreement No 682903, P.I. H. Bouy), and from the French State in the framework of the "Investments for the future" Program, IdEx Bordeaux, reference ANR-10-IDEX-03-02. This research has made use of the SIMBAD database, operated at CDS, Strasbourg, France. 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 publication makes use of data products from theWidefield Infrared Survey Explorer, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration. This publication makes use of VOSA, developed under the Spanish Virtual Observatory project supported by the Spanish MINECO through grant AyA2017-84089. VOSA has been partially updated by using funding from the European Union's Horizon 2020 Research and Innovation Programme, under Grant Agreement no 776403 (EXOPLANETS-A).</dc:description>
18. <dc:date>2021-12-22T12:09:56Z</dc:date>
19. <dc:date>2021-12-22T12:09:56Z</dc:date>
20. <dc:date>2021-10</dc:date>
21. <dc:type>journal article</dc:type>
22. <dc:identifier>0004-6361</dc:identifier>
23. <dc:identifier>1432-0746 (internet)</dc:identifier>
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25. <dc:identifier>10.1051/0004-6361/202141366</dc:identifier>
26. <dc:language>eng</dc:language>
27. <dc:relation>info:eu-repo/grantAgreement/EC/H2020/682903/</dc:relation>
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29. <dc:relation>info:eu-repo/grantAgreement/EC/H2020/776403/</dc:relation>
30. <dc:rights>Atribución 4.0 Internacional</dc:rights>
31. <dc:rights>http://creativecommons.org/licenses/by/4.0/</dc:rights>
32. <dc:rights>open access</dc:rights>
33. <dc:format>application/pdf</dc:format>
34. <dc:publisher>EDP SCIENCES S A</dc:publisher>
35. <dc:source>A&A 654, A122 (2021)</dc:source>
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