The spectroscopic evolution of the symbiotic star AG Draconis I. The O VI Raman, Balmer, and helium emission line variations during the outburst of 2006-2008

0355077 - ASÚ 2011 RIV FR eng J - Článek v odborném periodiku
Shore, S. N. - Wahlgren, G.M. - Genovali, K. - Bernabei, S. - Koubský, Pavel - Šlechta, Miroslav - Škoda, Petr - Skopal, A. - Wolf, M.
The spectroscopic evolution of the symbiotic star AG Draconis I. The O VI Raman, Balmer, and helium emission line variations during the outburst of 2006-2008.
Astronomy & Astrophysics. Roč. 510, February (2010), A70/1-A70/10. ISSN 0004-6361. E-ISSN 1432-0746
Grant ostatní: ESA(XE) ESA- PECS Project No. 98058; Vega(SK) 2/7010/27
Výzkumný záměr: CEZ:AV0Z10030501
Klíčová slova: AG Draconis * radiation mechanisms * atomic processes
Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika
Impakt faktor: 4.410, rok: 2010

The O VI Raman features disappeared completely at the peak of the major outburst and the subsequent variation differs substantially from that reported during the previous decade. The He I and He II lines, and the Balmer lines, vary in phase with the Raman features but there is a double-valuedness to the He I 6678, 7065 relative to the O VI Raman 6825 Å variations in the period between 2006-2008 that has not been previously reported.
Trvalý link: http://hdl.handle.net/11104/0193924