A phase change in X Persei
| العنوان: | A phase change in X Persei |
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| المؤلفون: | S. J. Unger, Victor Reglero, P. Roche, M. J. Gorrod, J. Kastner, Andrew Norton, B. J. Payne, M. J. Coe, Amando Estela, Juan Fabregat |
| المصدر: | Monthly Notices of the Royal Astronomical Society. 253:579-583 |
| بيانات النشر: | Oxford University Press (OUP), 1991. |
| سنة النشر: | 1991 |
| مصطلحات موضوعية: | Physics, Absorption spectroscopy, Infrared, Be star, Astrophysics::High Energy Astrophysical Phenomena, X-ray binary, Astronomy, Balmer series, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, symbols.namesake, Apparent magnitude, Space and Planetary Science, symbols, Astrophysics::Solar and Stellar Astrophysics, H-alpha, Astrophysics::Earth and Planetary Astrophysics, Emission spectrum, Astrophysics::Galaxy Astrophysics |
| الوصف: | We present a series of optical spectroscopic and infrared photometric observations of the Be/X-ray binary system X Per made over the last four years. Over this period the Hα line profile changed from emission to absorption, accompanied by a decrease in the infrared flux by over a magnitude and a flattening of the infrared spectrum. Such behaviour is consistent with the loss of the circumstellar disc or shell of material around the Be star and the reversion to a normal O/B-type star. |
| تدمد: | 1365-2966 0035-8711 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::0a3c535fb61cd198912bab2b9b132e21 https://doi.org/10.1093/mnras/253.4.579 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........0a3c535fb61cd198912bab2b9b132e21 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13652966 00358711 |
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