What nuclear cardiology can learn from nuclear oncology
Journal of Nuclear Cardiology, cilt.10, sa.3, ss.324-328, 2003 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Derleme
- Cilt numarası: 10 Sayı: 3
- Basım Tarihi: 2003
- Doi Numarası: 10.1016/s1071-3581(03)00521-x
- Dergi Adı: Journal of Nuclear Cardiology
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.324-328
- Kırklareli Üniversitesi Adresli: Evet
Özet
Aims: To investigate structure of the hot object in the symbiotic prototype Z And during its major 2000-03 active phase. Methods: Analysis of the far ultraviolet, optical low- and high-resolution spectroscopy and UBVR photometry. Reconstruction of the spectral energy distribution (SED) during the outburst. The Raman scattering process. Results: At the initial stages of the outburst the hot object was characterized by the two-temperature spectrum (a warm stellar radiation and a strong nebular emission) with signatures of a mass-outflow at moderate (100-200 km/s) and very high (1000-2000 km/s) velocities. The corresponding structure of the hot object consists of an optically thick, slowly-expanding disk-like material encompassing the accretor at the orbital plane and a fast optically thin wind over the remainder of the star. A striking similarity of [FeVII]6087 and Raman 6825 profiles at/after the dilution of the disk suggested their origin within the interaction zone where the winds from the binary components collide.