J/MNRAS/377/741ivo://CDS.VizieR/J/MNRAS/377/741doi:10.26093/cds/vizier.73770741CDSIrwin J.Hodgkin S.Aigrain S.Hebb L.Bouvier J.Clarke C.,Moraux E.Bramich D.M.2024-07-04T20:18:20Z2007-12-28T22:29:32ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fropen-star-clustersinfrared-photometryvisible-astronomybroad-band-photometrykron-cousins-photometryWe report on the results of an i-band time-series photometric survey of NGC2516 using the Cerro Tololo Inter-American Observatory (CTIO) 4-m Blanco telescope and 8k Mosaic-II detector, achieving better than 1 per cent photometric precision per data point over 15<~i<~19. Candidate cluster members were selected from a V versus V-I colour-magnitude diagram over 16<V<26 (covering masses from 0.7M_{sun}_ down to below the brown dwarf limit), finding 1685 candidates, of which we expect ~1000 to be real cluster members, taking into account contamination from the field (which is most severe at the extremes of our mass range). Searching for periodic variations in these gave 362 detections over the mass range 0.15<~M/M_{sun}_<~0.7. The rotation period distributions were found to show a remarkable morphology as a function of mass, with the fastest rotators bounded by P>0.25d, and the slowest rotators for M<~0.5M_{sun}_ bounded by a line of P~M3, with those for M>~0.5M_{sun}_ following a flatter relation closer to P ~ constant. Models of the rotational evolution were investigated, finding that the evolution of the fastest rotators was well reproduced by a conventional solid body model with a mass-dependent saturation velocity, whereas core-envelope decoupling was needed to reproduce the evolution of the slowest rotators. None of our models were able to simultaneously reproduce the behaviour of both populations.2007MNRAS.377..741Ihttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/377/741CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/312/818 : NGC 2516 X-ray sources (Dachs+, 1996)J/ApJ/588/1009 : Chandra X-ray observations of NGC 2516 (Damiani+, 2003)J/ApJ/606/466 : X-ray variability in NGC 2516 (Wolk+, 2004)J/A+A/450/993 : XMM survey of NGC 2516 (Pillitteri+, 2006)J/A+A/456/977 : XMM observations of NGC 2516 stars (Marino+, 2006)J/MNRAS/370/954 : The Monitor project: M34 (Irwin+, 2006)J/A+A/375/863 : Photometry in NGC 2516 (Jeffries+, 2001)J/AJ/123/290 : UBVI CCD photometry of NGC 2516 (Sung+, 2002)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/377/741https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/377/741http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/377/741https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/377/741https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/377/741http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/377/741GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/377/741/table1 (Positions, photometry and rotation periods)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/377/741/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/377/741/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/377/741/table1?GETtext/xml+votable180.050000true119.1175833-61.46294440.0055555555555555566/37586-37587 37592-375942.367228618189496e-19 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/377/741?format=asciiOpticalInfrareddefaultJ/MNRAS/377/741/table1Positions, photometry and rotation periodsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[IHA2007]Identifier in NGC 2516, N-N-NNNNmeta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainVmagJohnson V magnitudemagphot.mag;em.opt.VfloatIcmagCousins I magnitudemagphot.mag;em.opt.IfloatPerPhotometric perioddtime.periodfloatIampSine curve fit amplitude (i-band)magsrc.var.amplitudefloatMassAdopted mass from modelssolMassphys.massfloatRadAdopted radius from modelssolRadphys.size.radiusfloat