The Gaia-ESO Survey: The first abundance determination of the pre-main-sequence cluster gamma velorum

Simple item page
dc.contributor.authorMontes Gutiérrez, David
dc.contributor.authorTabernero, H.
dc.contributor.authorKoposov, S.
dc.contributor.authorHourihane, A.
dc.contributor.authorJofré, P.
dc.contributor.authorMasseron, T.
dc.date.accessioned2023-06-19T13:30:46Z
dc.date.available2023-06-19T13:30:46Z
dc.date.issued2014-07
dc.description© EDP Sciences. We acknowledge the support from INAF and Ministero dell’Istruzione, dell’Università e della Ricerca (MIUR) in the form of the grant “Premiale VLT 2012”. We also acknowledge the financial support from “Programme National de Cosmologie and Galaxies” (PNCG) of CNRS/INSU, France. The results presented here benefited from discussions in three GaiaESO workshops supported by the ESF (European Science Foundation) through the GREAT (Gaia Research for European Astronomy Training) Research Network Program (Science meetings 3855, 4127 and 4415). T.B. was funded by grant No. 621-2009-3911 from The Swedish Research Council. This research has made use of the SIMBAD database, operated at CDS, Strasbourg, France. E.J.A. acknowledges financial support from the “Ministerio de Economía y Competitividad” of Spain through grant AYA2010-17631. S.G.S, EDM, and V.Zh.A. acknowledge support from the Fundac¸o para a Ciéncia e Tecnologia (Portugal) in the form of grants SFRH/BPD/47611/2008, SFRH/BPD/76606/2011, SFRH/BPD/70574/2010, respectively
dc.description.abstractContext. Knowledge of the abundance distribution of star forming regions and young clusters is critical to investigate a variety of issues, from triggered star formation and chemical enrichment by nearby supernova explosions to the ability to form planetary systems. In spite of this, detailed abundance studies are currently available for relatively few regions. Aims. In this context, we present the analysis of the metallicity of the Gamma Velorum cluster, based on the products distributed in the first internal release of the Gaia-ESO Survey. Methods. The Gamma Velorum candidate members have been observed with FLAMES, using both UVES and Giraffe, depending on the target brightness and spectral type. In order to derive a solid metallicity determination for the cluster, membership of the observed stars must be first assessed. To this aim, we use several membership criteria including radial velocities, surface gravity estimates, and the detection of the photospheric lithium line. Results. Out of the 80 targets observed with UVES, we identify 14 high-probability members. We find that the metallicity of the cluster is slightly subsolar, with a mean [Fe/H]=−0.057±0.018 dex. Although J08095427-4721419 is one of the high-probability members, its metallicity is significantly larger than the cluster average. We speculate about its origin as the result of recent accretion episodes of rocky bodies of ∼60 M_⊕ hydrogen-depleted material from the circumstellar disk.
dc.description.departmentDepto. de Física de la Tierra y Astrofísica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipMinistero dell'Istruzione, dell'Universitàe della Ricerca (MIUR)
dc.description.sponsorshipMinisterio de Economía y Competitividad of Spain
dc.description.sponsorshipFundac¸o para a Ciéncia e Tecnologia (Portugal)
dc.description.sponsorshipSwedish Research Council
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/29222
dc.identifier.citationAdibekyan, V. Z., Delgado Mena, E., Sousa, S. G., et al. 2012a, A&A, 547, A36 Adibekyan, V. Z., Santos, N. C., Sousa, S. G., et al. 2012b, A&A, 543, A89 Biazzo, K., Randich, S., & Palla, F. 2011a, A&A, 525, A35 Biazzo, K., Randich, S., Palla, F., & Briceño, C. 2011b, A&A, 530, A19 Bragaglia, A., Alfaro, E., Flaccomio, E., et al. 2014, A&A, in preparation Brandt, J. C. & Maran, S. P. 1971, in Bulletin of the American Astronomical Society, Vol. 3, Bulletin of the American Astronomical Society, 396 Cayrel, R. 1988, in IAU Symposium, Vol. 132, The Impact of Very High S/N Spectroscopy on Stellar Physics, ed. G. Cayrel de Strobel & M. Spite, 345 Cunha, K. & Lambert, D. L. 1992, ApJ, 399, 586 Cunha, K. & Lambert, D. L. 1994, ApJ, 426, 170 Cunha, K., Smith, V. V., & Lambert, D. L. 1998, ApJ, 493, 195 D’Orazi, V., Randich, S., Flaccomio, E., et al. 2009, A&A, 501, 973 Eldridge, J. J. 2009, MNRAS, 400, L20 Ercolano, B. & Clarke, C. J. 2010, MNRAS, 402, 2735 Friel, E. D. 1995, ARA&A, 33, 381 Gilli, G., Israelian, G., Ecuvillon, A., Santos, N. C., & Mayor, M. 2006, A&A, 449, 723 Gilmore, G., Randich, S., Asplund, M., et al. 2012, The Messenger, 147, 25 Gonzalez, G. 1998, in Astronomical Society of the Pacific Conference Series, Vol. 134, Brown Dwarfs and Extrasolar Planets, ed. R. Rebolo, E. L. Martin, & M. R. Zapatero Osorio, 431 Grevesse, N., Asplund, M., & Sauval, A. J. 2007, Space Sci. Rev., 130, 105 Gustafsson, B., Edvardsson, B., Eriksson, K., et al. 2008, A&A, 486, 951 Hernandez, J., Hartmann, L., Calvet, N., et al. 2008, ApJ, 686, 1195 Høg, E., Fabricius, C., Makarov, V. V., et al. 2000, A&A, 355, L27 Humphreys, R. M. 1978, ApJS, 38, 309 James, D. J., Melo, C., Santos, N. C., & Bouvier, J. 2006, A&A, 446, 971 Jeffries, R. D., Jackson, R. J., Cottaar, M., et al. 2014, A&A, 563, A94 Jeffries, R. D., Naylor, T., Walter, F. M., Pozzo, M. P., & Devey, C. R. 2009, MNRAS, 393, 538 Johnson, J. A., Aller, K. M., Howard, A. W., & Crepp, J. R. 2010, PASP, 122, 905 Jones, B. F., Shetrone, M., Fischer, D., & Soderblom, D. R. 1996, AJ, 112, 186 Kang, W., Lee, S.-G., & Kim, K.-M. 2011, ApJ, 736, 87 Laughlin, G. & Adams, F. C. 1997, ApJ, 491, L51 Miller, N. & Fortney, J. J. 2011, ApJ, 736, L29 Millour, F., Petrov, R. G., Chesneau, O., et al. 2007, A&A, 464, 107 Mordasini, C., Alibert, Y., Benz, W., Klahr, H., & Henning, T. 2012, A&A, 541, A97 Neves, V., Santos, N. C., Sousa, S. G., Correia, A. C. M., & Israelian, G. 2009, A&A, 497, 563 North, J. R., Tuthill, P. G., Tango, W. J., & Davis, J. 2007, MNRAS, 377, 415 Pasquini, L., Avila, G., Blecha, A., et al. 2002, The Messenger, 110, 1 Pettersson, B. 2008, Young Stars and Dust Clouds in Puppis and Vela, ed. B. Reipurth, 43 Pozzo, M., Jeffries, R. D., Naylor, T., et al. 2000, MNRAS, 313, L23 Randich, S. & Gilmore, G. 2013, Messenger, 154, 47 Sacco, G. G., Morbidelli, L., Franciosini, E., et al. 2014, ArXiv e-prints Santos, N. C., Israelian, G., & Mayor, M. 2004, A&A, 415, 1153 Santos, N. C., Melo, C., James, D. J., et al. 2008, A&A, 480, 889 Schaerer, D., Schmutz, W., & Grenon, M. 1997, ApJ, 484, L153 Sherry, W. H., Walter, F. M., Wolk, S. J., & Adams, N. R. 2008, AJ, 135, 1616 Sicilia-Aguilar, A., Hartmann, L., Calvet, N., et al. 2006, ApJ, 638, 897 Siess, L., Dufour, E., & Forestini, M. 2000, A&A, 358, 593 Slawson, R. W. & Reed, B. C. 1988, JRASC, 82, 276 Smiljanic, R., Korn, A., Bergemann, M., & et al. 2014, A&A, submitted Smith, L. F. 1968, MNRAS, 141, 317 Soderblom, D. R., Jones, B. F., Balachandran, S., et al. 1993, AJ, 106, 1059 Spezzi, L., de Marchi, G., Panagia, N., Sicilia-Aguilar, A., & Ercolano, B. 2012, MNRAS, 421, 78 Stauffer, J. R., Schultz, G., & Kirkpatrick, J. D. 1998, ApJ, 499, L199 Sushch, I., Hnatyk, B., & Neronov, A. 2011, A&A, 525, A154 Théado, S. & Vauclair, S. 2012, ApJ, 744, 123 van Leeuwen, F. 2007, A&A, 474, 653 Wilden, B. S., Jones, B. F., Lin, D. N. C., & Soderblom, D. R. 2002, AJ, 124, 2799 Wuchterl, G., Guillot, T., & Lissauer, J. J. 2000, Protostars and Planets IV, 1081 Yasui, C., Kobayashi, N., Tokunaga, A. T., Saito, M., & Tokoku, C. 2010, ApJ, 723, L113
dc.identifier.doi10.1051/0004-6361/201423527
dc.identifier.issn0004-6361
dc.identifier.officialurlhttp://dx.doi.org/10.1051/0004-6361/201423527
dc.identifier.relatedurlhttp://www.aanda.org
dc.identifier.urihttps://hdl.handle.net/20.500.14352/33906
dc.issue.numberA55
dc.journal.titleAstronomy and astrophysics
dc.language.isoeng
dc.publisherEDP Sciencies
dc.relation.projectIDPremiale VLT 2012
dc.relation.projectIDAYA2010-17631
dc.relation.projectID621-2009-3911
dc.relation.projectIDSFRH/BPD/47611/2008, SFRH/BPD/76606/2011,
dc.rights.accessRightsopen access
dc.subject.cdu52
dc.subject.keywordGamma Velorum
dc.subject.keywordStars: pre-main sequence
dc.subject.keywordStars: abundance
dc.subject.keywordTechniques: spectroscopic
dc.subject.ucmAstrofísica
dc.subject.ucmAstronomía (Física)
dc.titleThe Gaia-ESO Survey: The first abundance determination of the pre-main-sequence cluster gamma velorum
dc.typejournal article
dc.volume.number567
dspace.entity.typePublication
relation.isAuthorOfPublication2dfe4286-12c7-4d3a-bfda-d298a90cc8fe
relation.isAuthorOfPublication.latestForDiscovery2dfe4286-12c7-4d3a-bfda-d298a90cc8fe
Download
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
166 (1889).pdf
Size:
1.12 MB
Format:
Adobe Portable Document Format
downoload Download
Collections
Artículos