I photometry of very low mass ONC starsJ/A+A/502/883ivo://CDS.VizieR/J/A+A/502/883doi:10.26093/cds/vizier.35020883CDSRodriguez-Ledesma M.V.Mundt R.Eisloeffel J.2017-10-13T15:41:28Z2009-10-16T14:17:24ZCDS support team
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
cds-question@unistra.fropen-star-clusterspre-main-sequence-starsapparent-magnitudeRotational studies at a variety of ages and masses are important for constraining the angular momentum evolution of young stellar objects (YSO). Of particular interest are the very low mass (VLM) stars and brown dwarfs (BDs), because of the significant lack of known rotational periods in that mass range. We aim to extend previous studies well down into the substellar regime, providing for the first time information on rotational periods for a large sample of young VLM stars and BDs. This extensive rotational period study of YSOs in the 1 Myr old Orion Nebula Cluster (ONC) is based on a deep photometric monitoring campaign using the Wide Field Imager (WFI) camera on the ESO/MPG 2.2m telescope on La Silla, Chile. Time series data was obtained with about 95 data points spread over 19 nights. Accurate I-band photometry of 2908 stars was obtained within a magnitude range of 13 to 21mag, i.e. extending three magnitudes deeper than previous studies in the ONC. Two different power spectral analysis techniques were used to search for periodic variability. In addition, the chi^2^ variability test was used for the detection of irregular variables.2009A&A...502..883Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/502/883CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)J/AJ/113/1733 : Orion Nebula Cluster population (Hillenbrand 1997)J/A+A/396/513 : Stellar rotation in the Orion Nebula Cluster (Herbst+, 2002)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/502/883https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/502/883http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/502/883https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/502/883https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/502/883http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/502/883GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/502/883/table1 (Photometric Data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/502/883/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/502/883/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/502/883/table1?GETtext/xml+votable180.050000true83.6175417-5.44430830.0055555555555555566/21438-21439 22804-22805https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/502/883?format=asciiOpticaldefaultJ/A+A/502/883/table1Photometric DatarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[H97b]ID number (G1)meta.id;meta.mainintprimaryRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainImagAverage I magnitude (4)magphot.mag;em.opt.Ifloate_ImagError on I magnitudemagstat.error;phot.mag;em.opt.IfloatNdataNumber of data points obtainedmeta.numberintChipCCD chip on which star is located (1)meta.id;instrcharVtypeType of variability (2)meta.notechar2MASS2MASS (Cat. II/246) identification number (HHMMSSss+DDMMSSs) (3)meta.idcharVSimbad column added by the CDSmeta.ref.urlcharP2002Display data from Herbst et al. 2002, Cat. J/A+A/396/513meta.ref.urlcharSimbadSIMBAD data for this starmeta.ref.urlchar
J/A+A/502/883/table2Periodic variables detected during this studyrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[H97b]ID number (G1)meta.id;meta.mainintImagAverage I magnitudemagphot.mag;em.opt.IfloatFAP(Sc)False Alarm Probability from Scargle periodogramstat.probabilitydoubleFAP(Ft)False Alarm Probability from F-teststat.probabilitydoublePerRotation period from this studydtime.periodfloate_PerError in the rotation perioddstat.errorfloatP(H2002)? Rotational period given by Herbst et al. (2002, Cat. J/A+A/396/513) (1)dtime.periodfloatnullableP(Adopt)Rotation period of star adopted heredtime.periodfloatPtPPeak-to-peak amplitude of the brightness modulationmagsrc.var.amplitudefloat