J/A+A/357/548ivo://CDS.VizieR/J/A+A/357/548doi:10.26093/cds/vizier.33570548CDSAdelman S.J.2000-05-27T20:06:17Z2000-05-27T20:05:48ZCDS 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 photometric observations from the Four College Automated Photoelectric Telescope (FCAPT) are presented for the magnetic CP stars HD 36668, 36 Lyn, HD 86592, and HR 8861. Using the FCAPT values, North's period for HD 36668 is refined to 2.11884 days. The 3.834 day period of Shore et al. (1990ApJ...348..242S) for 36 Lyn, which was found from magnetic field measurements, is confirmed by photometry. The FCAPT observations also support the 2.8867 day period of Babel & North (1997A&A...325..195B) for HD 86592, demonstrate that this star is a large amplitude variable in v (0.13 mag), and show that y varies crudely out of phase from u, v, and b which are in phase with one another. The variability of HR 8861 appears to be correlated with the meridional passages of regions of Si over- and underabundance as found by Piskunov et al. (1994A&A...291..910P)2000A&A...357..548Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/357/548CatalogResearchIsServedByTAP 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 (North+, 1995)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/134/53 : HD 15980, HR 1094, 33 Gem, and HD 115708 (Adelman 1998)J/A+AS/136/111 : HD 35298, 19 Lyr, HD 192678 and HR 8216 (Adelman+ 1999)J/A+AS/136/379 : 45 Leo, HR 4330, 49 Her and 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+A/357/548https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/357/548http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/357/548https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/357/548https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/357/548http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/357/548GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/357/548/table2Photometry of HD 36668recnoRecord number assigned by the VizieR team. Should Not be used for identification.intHJDHeliocentric Julian Dateddoubleu(v-c)variable-comparison (v-c) u magnitudemagfloatu(ch-c)check-comparison (ch-c) u magnitudemagfloatv(v-c)variable-comparison (v-c) v magnitudemagfloatv(ch-c)check-comparison (ch-c) v magnitudemagfloatb(v-c)variable-comparison (v-c) b magnitudemagfloatb(ch-c)check-comparison (ch-c) b magnitudemagfloaty(v-c)variable-comparison (v-c) y magnitudemagfloaty(ch-c)check-comparison (ch-c) y magnitudemagfloatJ/A+A/357/548/table3Photometry of 36 LynrecnoRecord number assigned by the VizieR team. Should Not be used for identification.intHJDHeliocentric Julian Dateddoubleu(v-c)variable-comparison (v-c) u magnitudemagfloatu(ch-c)check-comparison (ch-c) u magnitudemagfloatv(v-c)variable-comparison (v-c) v magnitudemagfloatv(ch-c)check-comparison (ch-c) v magnitudemagfloatb(v-c)variable-comparison (v-c) b magnitudemagfloatb(ch-c)check-comparison (ch-c) b magnitudemagfloaty(v-c)variable-comparison (v-c) y magnitudemagfloaty(ch-c)check-comparison (ch-c) y magnitudemagfloatJ/A+A/357/548/table4Photometry of HD 86592recnoRecord number assigned by the VizieR team. Should Not be used for identification.intHJDHeliocentric Julian Dateddoubleu(v-c)variable-comparison (v-c) u magnitudemagfloatu(ch-c)check-comparison (ch-c) u magnitudemagfloatv(v-c)variable-comparison (v-c) v magnitudemagfloatv(ch-c)check-comparison (ch-c) v magnitudemagfloatb(v-c)variable-comparison (v-c) b magnitudemagfloatb(ch-c)check-comparison (ch-c) b magnitudemagfloaty(v-c)variable-comparison (v-c) y magnitudemagfloaty(ch-c)check-comparison (ch-c) y magnitudemagfloatJ/A+A/357/548/table5Photometry of HR 8861HJDHeliocentric Julian DateddoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.intu(v-c)variable-comparison (v-c) u magnitudemagfloatu(ch-c)check-comparison (ch-c) u magnitudemagfloatv(v-c)variable-comparison (v-c) v magnitudemagfloatv(ch-c)check-comparison (ch-c) v magnitudemagfloatb(v-c)variable-comparison (v-c) b magnitudemagfloatb(ch-c)check-comparison (ch-c) b magnitudemagfloaty(v-c)variable-comparison (v-c) y magnitudemagfloaty(ch-c)check-comparison (ch-c) y magnitudemagfloatJ/A+A/357/548/tableaAverage photometryNameStar namecharYearsPeriod of observationchare_bmag2? rms uncertainty on bmag2magfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.intTable[2,5] Table number with detailed photometryintumag1Variable-comparison (v-c) u magnitudemagfloate_umag1rms uncertainty on umag1magfloatumag2? Check-comparison (ch-c) u magnitudemagfloatnullablee_umag2? rms uncertainty on umag2magfloatnullablevmag1Variable-comparison (v-c) v magnitudemagfloate_vmag1rms uncertainty on vmag1magfloatvmag2? Check-comparison (ch-c) v magnitudemagfloatnullablee_vmag2? rms uncertainty on vmag2magfloatnullablebmag1Variable-comparison (v-c) b magnitudemagfloate_bmag1rms uncertainty on bmag1magfloatbmag2? Check-comparison (ch-c) b magnitudemagfloatnullableymag1Variable-comparison (v-c) y magnitudemagfloate_ymag1rms uncertainty on ymag1magfloatymag2? Check-comparison (ch-c) y magnitudemagfloatnullablee_ymag2? rms uncertainty on ymag2magfloatnullable