Optical and X-Ray Observations of the Symbiotic System Ag Draconis During Quiescence and Outburst

被引:0
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作者
Roberto F. Viotti
Rosario González-Riestra
Takashi Iijima
Stefano Bernabei
Riccardo Claudi
Jochen Greiner
Michael Friedjung
Vito Francesco Polcaro
Corinne Rossi
机构
[1] CNR,Istituto di Astrofisica Spaziale e Fisica Cosmica
[2] ESA,XMM Science Operations Centre
[3] VILSPA,INAF–Osservatorio Astronomico di Padova
[4] Sezione di Asiago,MPI f. extraterrestrische Physik
[5] INAF–Osservatorio Astronomico di Bologna,Institut d’Astrophysique
[6] INAF–Osservatorio Astronomico di Padova,Dip. di Fisica
[7] Garching,undefined
[8] CNRS,undefined
[9] Università La Sapienza,undefined
来源
关键词
symbiotic binaries; AG Dra; optical spectroscopy; X-rays; outburst;
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学科分类号
摘要
We review the main characteristics of the symbiotic system AG Draconis, with special emphasis on its optical and X-ray variations. We also discuss the X-ray to visual energy distribution during quiescence and outburst and describe our spectroscopic and X-ray observations during the 2003 outburst.
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页码:435 / 439
页数:4
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