J/A+A/399/365ivo://CDS.VizieR/J/A+A/399/365doi:10.26093/cds/vizier.33990365CDSBlake C.Fox D.W.Park H.S.Williams G.G.2004-10-07T22:09:01Z2004-10-07T22:08:55ZCDS support team

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

cds-question@unistra.frvariable-starsWe have observed a sample of delta Scuti stars discovered by the ROTSE collaboration in 1999 with Super-LOTIS in order to characterize changes in their pulsation periods over a time baseline of roughly three years. Achieving these goals required the creation of an automated astrometric and photometric data reduction pipeline for the Super-LOTIS camera. Applying this pipeline to data from a June 2002 observing campaign, we detect pulsations in 18 objects, and find that in two cases the periods have changed significantly over the three years between the ROTSE and Super-LOTIS observations. Since theory predicts that evolutionary period changes should be quite small, sources of non-evolutionary period changes due to the interactions of pulsations modes are discussed.2003A&A...399..365Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/399/365CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/119/1901 : ROTSE all-sky surveys for variable stars (Akerlof+, 2000)J/A+A/404/621 : Light curves of ROTSE-I delta Scuti type stars (Jin+, 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/399/365https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/399/365http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/399/365https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/399/365https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/399/365http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/399/365GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/399/365/table1 (The delta Scuti star sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/399/365/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/399/365/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/399/365/table1?GETtext/xml+votable180.050000true253.9033252.379080.0055555555555555566/8660 8664 8911 8914 8937 9098 9193 9356 9371 9449-9450 9714 9769 9800 9857 10044 10351 28112https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/399/365?format=asciiOpticaldefaultJ/A+A/399/365/table1The delta Scuti star samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintROTSEROTSE number (1)meta.idintn_ROTSE[a] a: The known variable star YZ Boo.meta.notecharRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainmagROTSE magnitudemagphot.mag;em.opt.VfloatPerPeriod (2)dtime.periodfloatDmag{Delta}Mag (amplitude)magsrc.var.amplitudefloat