A New Subdwarf-OB Pulsator J23341+4622

• Autorzy: Pakštiene E. , Qvam J. K. T. , Østensen R. H. , Telting J. H.
• Języki publikacji: EN

Abstrakty

EN

A new sdOB variable star, J23341+4622 (SDSS J233406.10+462249.3), was discovered during photometric observations with the Nordic Optical Telescope (La Palma). We found its main pulsation frequency at 7422(±9) μHz with an amplitude of 4.5(±0.5) mma. The star is possibly a complex pulsator, as we found another significant peak at 7759(±11) μHz with an amplitude of 2.0(±0.3) mma and a possible subharmonic of the main frequency at 3508 μHz with an amplitude of 2.3 mma.

Słowa kluczowe

EN

asteroseismology; subdwarfs; stars: oscillations: including pulsations

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2014
• Tom: Vol. 64, No. 4
• Strony: 349--358
• Opis fizyczny: Bibliogr. 23 poz., rys., tab., wykr.

Twórcy

autor

Pakštiene E.

• Institute of Theoretical Physics and Astronomy, Vilnius University, Goštauto 12, Vilnius, LT-01108, Lithuania

autor

Qvam J. K. T.

• he Faculty of Mathematics and Natural Sciences, Department of Physics, University of Oslo

autor

Østensen R. H.

• Institute of Astronomy, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium

autor

Telting J. H.

• Nordic Optical Telescope, Rambla José Ana Fernández Pérez 7, E-38711 Brena Baja, Spain

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