Asteroseismology of Pulsating sdB Stars Observed at Catania Astrophysical Observatory

We present analysis of the data collected during three years of photometric campaigns at the 91 cm Cassegrain telescope of the Catania Astrophysical Observatory to observe the pulsating subdwarf B star PG 1336-018. For this eclipsing binary system, we obtained a precise determination of the orbital...

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Main Authors: Bonanno A., Frasca A., Lanza A. F., Ventura R., Mignemi B., Silvotti R.
Format: Article
Language:English
Published: De Gruyter 2003-06-01
Series:Open Astronomy
Online Access:https://doi.org/10.1515/astro-2017-0052
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author Bonanno A.
Frasca A.
Lanza A. F.
Ventura R.
Mignemi B.
Silvotti R.
author_facet Bonanno A.
Frasca A.
Lanza A. F.
Ventura R.
Mignemi B.
Silvotti R.
author_sort Bonanno A.
collection DOAJ
description We present analysis of the data collected during three years of photometric campaigns at the 91 cm Cassegrain telescope of the Catania Astrophysical Observatory to observe the pulsating subdwarf B star PG 1336-018. For this eclipsing binary system, we obtained a precise determination of the orbital period which turns out to be P = 0.10101599±0.00000002 days. Time-series photometry reveals pulsation periods near 174 and 184 seconds. We also discuss a preliminary analysis of the data obtained in 2002 for the pulsating subdwarf PG 1325+101.
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spelling doaj.art-46fa08141f98437aa220c484387630102022-12-21T22:01:22ZengDe GruyterOpen Astronomy2543-63762003-06-0112228729410.1515/astro-2017-0052astro-2017-0052Asteroseismology of Pulsating sdB Stars Observed at Catania Astrophysical ObservatoryBonanno A.0Frasca A.1Lanza A. F.2Ventura R.3Mignemi B.4Silvotti R.5INAF – Osservatorio Astrofisico di Catania, Via S.Sofia 78, I-95123, Catania, ItalyINAF – Osservatorio Astrofisico di Catania, Via S.Sofia 78, I-95123, Catania, ItalyINAF – Osservatorio Astrofisico di Catania, Via S.Sofia 78, I-95123, Catania, ItalyINAF – Osservatorio Astrofisico di Catania, Via S.Sofia 78, I-95123, Catania, ItalyINAF – Osservatorio Astrofisico di Catania, Via S.Sofia 78, I-95123, Catania, ItalyOsservatorio Astronomico di Capodimonte, via Moiariello, 16 I-80131, Napoli, ItalyWe present analysis of the data collected during three years of photometric campaigns at the 91 cm Cassegrain telescope of the Catania Astrophysical Observatory to observe the pulsating subdwarf B star PG 1336-018. For this eclipsing binary system, we obtained a precise determination of the orbital period which turns out to be P = 0.10101599±0.00000002 days. Time-series photometry reveals pulsation periods near 174 and 184 seconds. We also discuss a preliminary analysis of the data obtained in 2002 for the pulsating subdwarf PG 1325+101.https://doi.org/10.1515/astro-2017-0052
spellingShingle Bonanno A.
Frasca A.
Lanza A. F.
Ventura R.
Mignemi B.
Silvotti R.
Asteroseismology of Pulsating sdB Stars Observed at Catania Astrophysical Observatory
Open Astronomy
title Asteroseismology of Pulsating sdB Stars Observed at Catania Astrophysical Observatory
title_full Asteroseismology of Pulsating sdB Stars Observed at Catania Astrophysical Observatory
title_fullStr Asteroseismology of Pulsating sdB Stars Observed at Catania Astrophysical Observatory
title_full_unstemmed Asteroseismology of Pulsating sdB Stars Observed at Catania Astrophysical Observatory
title_short Asteroseismology of Pulsating sdB Stars Observed at Catania Astrophysical Observatory
title_sort asteroseismology of pulsating sdb stars observed at catania astrophysical observatory
url https://doi.org/10.1515/astro-2017-0052
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