SMPSMC25 - an X-ray Emitting Symbiotic Star

• Autorzy: Hajduk M. , van Hoof P. A. M. , Zijlstra A. A.

Identyfikatory

DOI

10.32023/0001-5237/73.4.4

• Języki publikacji: EN

Abstrakty

EN

The paper reports a serendipitous discovery of a symbiotic star in the Small Magellanic Cloud. We obtained optical spectroscopy of SMP SMC 25, which was previously misidentified as X-ray emitting planetary nebula. The object resides in the region occupied by both young planetary nebulae and symbiotic stars in the emission-line diagnostic diagrams. Detection of OVI Raman scattered lines confirms new classification for SMP SMC 25. Emission-line flux ratios suggest stratification of electron density in the nebula. The new object increases the previously known sample of nine symbiotic stars in the Small Magellanic Cloud to ten. We argue that another X-ray emitting object, SMP SMC 22 is also a misclassified planetary nebula, although we do not provide definite evidence.

Słowa kluczowe

EN

binaries: symbiotic; planetary nebulae: general

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2023
• Tom: Vol. 73, No. 4
• Strony: 315--323
• Opis fizyczny: Bibliogr. 39 poz., tab., wykr.

Twórcy

autor

Hajduk M.

• Department of Geodesy, Institute of Geodesy and Civil Engineering, Faculty of Geoengineering, University of Warmia and Mazury, ul. Oczapowskiego 2, 10-719O lsztyn, Poland

autor

van Hoof P. A. M.

• Royal Observatory of Belgium, Ringlaan 3, 1180 Brussels, Belgium

autor

Zijlstra A. A.

• Jodrell Bank Centre for Astrophysics, Alan Turing Building, University of Manchester, Manchester M13 9PL, UK

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).