The δ Scuti star FG Vir.V. The 2002 photometric multisite campaign

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dc.contributor.authorBreger, M
dc.contributor.authorRodler, F
dc.contributor.authorPretorius, M L
dc.contributor.authorMartín-Ruiz, S
dc.contributor.authorAmado, P J
dc.contributor.authorCosta, V
dc.contributor.authorGarrido, R
dc.contributor.authorOlivares, I
dc.contributor.authorRodríguez, E
dc.contributor.authorRolland, A
dc.contributor.authorTshenye, T
dc.contributor.authorHandler, G
dc.contributor.authorPoretti, E
dc.contributor.authorSareyan, J P
dc.contributor.authorAlvarez, M
dc.contributor.authorKilmartin, P M
dc.contributor.authorZima, W
dc.date.accessioned2021-10-08T11:01:01Z
dc.date.available2021-10-08T11:01:01Z
dc.date.issued2004
dc.description.abstractA high-accuracy multisite campaign was carried out from 2002 January to May with a photometric coverage of 398 h at five observatories. The concentration on a few selected sites gives better consistency and accuracy than collecting smaller amounts from a larger number of sites. 23 frequencies were detected with a high statistical significance. 6 of these are new. The 17 frequencies found in common with the 1992-1995 data are the modes with highest amplitudes. This indicates that the pulsation spectrum of FG Vir is relatively stable over the ten-year period. Two frequencies have variable amplitudes and phases from year to year as well as during 2002. These were both found to be double modes with close frequencies. For the mode at 12.15 c/d this leads to an apparent modulation with a time scale of ~129 d. The close frequencies at 12.15 c/d are composed of a radial and a nonradial mode, suggesting a similarity with the Blazhko Effect seen in RR Lyrae stars.
dc.identifier.apacitationBreger, M., Rodler, F., Pretorius, M. L., Martín-Ruiz, S., Amado, P. J., Costa, V., ... Zima, W. (2004). The δ Scuti star FG Vir.V. The 2002 photometric multisite campaign. <i>Astronomy and Astrophysics</i>, 419(2), 695 - 701. http://hdl.handle.net/11427/35067en_ZA
dc.identifier.chicagocitationBreger, M, F Rodler, M L Pretorius, S Martín-Ruiz, P J Amado, V Costa, R Garrido, et al "The δ Scuti star FG Vir.V. The 2002 photometric multisite campaign." <i>Astronomy and Astrophysics</i> 419, 2. (2004): 695 - 701. http://hdl.handle.net/11427/35067en_ZA
dc.identifier.citationBreger, M., Rodler, F., Pretorius, M.L., Martín-Ruiz, S., Amado, P.J., Costa, V., Garrido, R. & Olivares, I. et al. 2004. The δ Scuti star FG Vir.V. The 2002 photometric multisite campaign. <i>Astronomy and Astrophysics.</i> 419(2):695 - 701. http://hdl.handle.net/11427/35067en_ZA
dc.identifier.issn0004-6361
dc.identifier.issn1432-0746
dc.identifier.ris TY - Journal Article AU - Breger, M AU - Rodler, F AU - Pretorius, M L AU - Martín-Ruiz, S AU - Amado, P J AU - Costa, V AU - Garrido, R AU - Olivares, I AU - Rodríguez, E AU - Rolland, A AU - Tshenye, T AU - Handler, G AU - Poretti, E AU - Sareyan, J P AU - Alvarez, M AU - Kilmartin, P M AU - Zima, W AB - A high-accuracy multisite campaign was carried out from 2002 January to May with a photometric coverage of 398 h at five observatories. The concentration on a few selected sites gives better consistency and accuracy than collecting smaller amounts from a larger number of sites. 23 frequencies were detected with a high statistical significance. 6 of these are new. The 17 frequencies found in common with the 1992-1995 data are the modes with highest amplitudes. This indicates that the pulsation spectrum of FG Vir is relatively stable over the ten-year period. Two frequencies have variable amplitudes and phases from year to year as well as during 2002. These were both found to be double modes with close frequencies. For the mode at 12.15 c/d this leads to an apparent modulation with a time scale of ~129 d. The close frequencies at 12.15 c/d are composed of a radial and a nonradial mode, suggesting a similarity with the Blazhko Effect seen in RR Lyrae stars. DA - 2004 DB - OpenUCT DP - University of Cape Town IS - 2 J1 - Astronomy and Astrophysics LK - https://open.uct.ac.za PY - 2004 SM - 0004-6361 SM - 1432-0746 T1 - The δ Scuti star FG Vir.V. The 2002 photometric multisite campaign TI - The δ Scuti star FG Vir.V. The 2002 photometric multisite campaign UR - http://hdl.handle.net/11427/35067 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/35067
dc.identifier.vancouvercitationBreger M, Rodler F, Pretorius ML, Martín-Ruiz S, Amado PJ, Costa V, et al. The δ Scuti star FG Vir.V. The 2002 photometric multisite campaign. Astronomy and Astrophysics. 2004;419(2):695 - 701. http://hdl.handle.net/11427/35067.en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Astronomy
dc.publisher.facultyFaculty of Science
dc.sourceAstronomy and Astrophysics
dc.source.journalissue2
dc.source.journalvolume419
dc.source.pagination695 - 701
dc.source.urihttps://dx.doi.org/10.1051/0004-6361:20035830
dc.subject.otherstars: variables: δ Sct -stars: oscillations -stars: individual: FG Vir-techniques: photometric
dc.subject.otherRR Lyrae stars
dc.subject.otherConsistency
dc.subject.otherDelta Scuti stars
dc.subject.otherEtoile type RR Lyrae
dc.subject.otherConsistance
dc.subject.otherEtoile type delta Scuti
dc.subject.otherConsistencia
dc.titleThe δ Scuti star FG Vir.V. The 2002 photometric multisite campaign
dc.typeJournal Article
uct.type.publicationResearch
uct.type.resourceJournal Article
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