J/A+AS/146/13ivo://CDS.VizieR/J/A+AS/146/13CDSAdelman S.J.2000-10-10T21:07:18Z2000-10-10T21:05:26ZCDS support team

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

cds-question@unistra.frpeculiar-variable-starsvisible-astronomymedium-band-photometryDifferential Stroemgren uvby observations from the Four College Automated Photoelectric Telescope (FCAPT) are presented for the mCP stars 20 Eri, HR 1297, 12 CMa, and HD 134214. Adelman & Boyce found suggestions that the light curves of 20 Eri change between observing seasons. Observations for two additional seasons confirm this behavior and lead to an improved period of 1.928890 days. For HR 1297 a new period of 15.7490 days was derived. The uvby light curves now appear to be the same for different observing seasons. 12 CMa is found to be a photometric variable with the 2.18010 day period determined from magnetic measurements by Bohlender et al. Observations of the rapidly oscillating Ap star HD 134214 confirm the lack of photometric variability which is not associated with the rapid oscillations.2000A&AS..146...13Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/146/13CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+AS/103/1 : 63 And, HD 192913, HR 8240 & 108 Aqr (Adelman+ 1994)J/A+AS/106/333 : Alpha And, HD 184905, HR 8216 & HR 8434 (Adelman+ 1994)J/A+AS/111/41 : 56 Tauri, HD 111133, HD 126515 and HD 215441 (Adelman+ 1994)J/A+AS/114/253 : HD 11187, HD 14940, HD 15144, 20 Eri, HR 8933 (Adelman+ 1995)J/PASP/109/9 : HR 1643, Theta Aur, 49 Cam, and HR 3724 (Adelman 1997)J/A+AS/122/249 : HD32633, 25 Sex, HR 7224, and HD 200311 (Adelman, 1997)J/A+A/329/579 : uvby photometry of theta CrB (Fabregat+ 1998)J/A+AS/123/445 : uvby photometry of metallic + Hg-Mn stars (Adelman 1997)J/A+AS/125/65 : HD 37776, HR 2258, HR 6958 & 108 Aqu (Adelman, 1997)J/A+AS/125/497 : Theta Vir and 109 Vir uvby photometry (Adelman 1997)J/A+AS/128/245 : AR Aur, 3 Hya, 49 Cnc & BX Boo (Adelman 1997)J/A+A/333/952 : BVRI photometry of HR 1105 (Adelman 1998)J/A+AS/136/379 : 45 Leo, HR 4330, 47 Her & HR 6718 (Adelman+ 1999)J/A+A/368/225 : HR 5341, HD 142070, HR 6967 & HR 8434 (Adelman, 2001)J/A+A/390/1023 : HR 194, HD 32966, HD 171782, and HR 7911 (Adelman+, 2002)J/A+A/401/357 : 60 Tau, HR 1528, HR 8216, HR 8770 (Adelman+, 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/146/13https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/146/13http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/146/13https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/146/13https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/146/13http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/146/13GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+AS/146/13/table2New Photometry of 20 ErirecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Datedtime.epochdoubleu(v-c)variable-comparison (v-c) u magnitudemagphot.mag;arith.difffloatu(ch-c)check-comparison (ch-c) u magnitudemagphot.mag;arith.difffloatv(v-c)variable-comparison (v-c) v magnitudemagphot.mag;arith.difffloatv(ch-c)check-comparison (ch-c) v magnitudemagphot.mag;arith.difffloatb(v-c)variable-comparison (v-c) b magnitudemagphot.mag;arith.difffloatb(ch-c)check-comparison (ch-c) b magnitudemagphot.mag;arith.difffloaty(v-c)variable-comparison (v-c) y magnitudemagphot.mag;arith.difffloaty(ch-c)check-comparison (ch-c) y magnitudemagphot.mag;arith.difffloatJ/A+AS/146/13/table3New Photometry of HR 1297recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Datedtime.epochdoubleu(v-c)variable-comparison (v-c) u magnitudemagphot.mag;arith.difffloatu(ch-c)check-comparison (ch-c) u magnitudemagphot.mag;arith.difffloatv(v-c)variable-comparison (v-c) v magnitudemagphot.mag;arith.difffloatv(ch-c)check-comparison (ch-c) v magnitudemagphot.mag;arith.difffloatb(v-c)variable-comparison (v-c) b magnitudemagphot.mag;arith.difffloatb(ch-c)check-comparison (ch-c) b magnitudemagphot.mag;arith.difffloaty(v-c)variable-comparison (v-c) y magnitudemagphot.mag;arith.difffloaty(ch-c)check-comparison (ch-c) y magnitudemagphot.mag;arith.difffloatJ/A+AS/146/13/table4Photometry of 12 CMarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Datedtime.epochdoubleu(v-c)variable-comparison (v-c) u magnitudemagphot.mag;arith.difffloatu(ch-c)check-comparison (ch-c) u magnitudemagphot.mag;arith.difffloatv(v-c)variable-comparison (v-c) v magnitudemagphot.mag;arith.difffloatv(ch-c)check-comparison (ch-c) v magnitudemagphot.mag;arith.difffloatb(v-c)variable-comparison (v-c) b magnitudemagphot.mag;arith.difffloatb(ch-c)check-comparison (ch-c) b magnitudemagphot.mag;arith.difffloaty(v-c)variable-comparison (v-c) y magnitudemagphot.mag;arith.difffloaty(ch-c)check-comparison (ch-c) y magnitudemagphot.mag;arith.difffloatJ/A+AS/146/13/table5Photometry of HD 134214recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Datedtime.epochdoubleu(v-c)variable-comparison (v-c) u magnitudemagphot.mag;arith.difffloatu(ch-c)check-comparison (ch-c) u magnitudemagphot.mag;arith.difffloatv(v-c)variable-comparison (v-c) v magnitudemagphot.mag;arith.difffloatv(ch-c)check-comparison (ch-c) v magnitudemagphot.mag;arith.difffloatb(v-c)variable-comparison (v-c) b magnitudemagphot.mag;arith.difffloatb(ch-c)check-comparison (ch-c) b magnitudemagphot.mag;arith.difffloaty(v-c)variable-comparison (v-c) y magnitudemagphot.mag;arith.difffloaty(ch-c)check-comparison (ch-c) y magnitudemagphot.mag;arith.difffloatJ/A+AS/146/13/tableaAverage photometryv(ch-c)? Check-comparison (ch-c) v magnitudemagphot.mag;arith.difffloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTable[2,5] Table number with detailed photometrymeta.id;meta.datasetintNameStar namemeta.id;meta.maincharYearsPeriod of observationyrtime.intervalcharu(v-c)Variable-comparison (v-c) u magnitudemagphot.mag;arith.difffloate_u(v-c)rms uncertainty on u(v-c)magstat.errorfloatu(ch-c)? Check-comparison (ch-c) u magnitudemagphot.mag;arith.difffloatnullablee_u(ch-c)? rms uncertainty on u(ch-c)magstat.errorfloatnullablev(v-c)Variable-comparison (v-c) v magnitudemagphot.mag;arith.difffloate_v(v-c)rms uncertainty on v(v-c)magstat.errorfloate_v(ch-c)? rms uncertainty on (ch-c)magstat.errorfloatnullableb(v-c)Variable-comparison (v-c) b magnitudemagphot.mag;arith.difffloate_b(v-c)rms uncertainty on b(v-c)magstat.errorfloatb(ch-c)? Check-comparison (ch-c) b magnitudemagphot.mag;arith.difffloatnullablee_b(ch-c)? rms uncertainty on b(ch-c)magstat.errorfloatnullabley(v-c)Variable-comparison (v-c) y magnitudemagphot.mag;arith.difffloate_y(v-c)rms uncertainty on y(v-c)magstat.errorfloaty(ch-c)? Check-comparison (ch-c) y magnitudemagphot.mag;arith.difffloatnullablee_y(ch-c)? rms uncertainty on y(ch-c)magstat.errorfloatnullable