2004/01/22 by M. F. Bode, Bode, M. F.
Physics and Astronomy · #Advanced Frequency and Time Standards #Astronomy #Astrophysics #Astrophysics (astro-ph) #Astrophysics and Star Formation Studies #Binary number #Circumbinary planet #Ejecta #FOS: Physical sciences #Image resolution #Interferometry #Optics #Physics #Stars #Stellar, planetary, and galactic studies #Supernova #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0401469
17 pages, 9 figures, to appear in "Symbiotic Stars Probing Stellar Evolution", eds. R. L. M. Corradi, J. Mikolajewska, and T. J. Mahoney, ASP Conference Series
openalex publication_date 2004/01/22 · arxiv created 2004/01/24 · openalex created_date 2016/06/24 · arxiv updated 2016/08/30 · openalex updated_date 2026/07/28
In this review, I concentrate on describing observations of spatially resolved emission in symbiotic stars at sub-arcsecond scales. In some of the closer objects, the highest resolutions discussed here correspond to linear dimensions similar to the supposed binary separation. A total of 17 stars well accepted as symbiotics are now observed to show sub-arcsecond structure, almost twice the number at the time of the last review in 1987. Furthermore, we now have access to HST imagery to add to radio interferometry. From such observations we can derive fundamental parameters of the central systems, investigate the variation of physical parameters across the resolved nebulae and probe the physical mechanisms of mass loss and interactions between ejecta and the circumstellar medium. Suggestions for future work are made and the potential of new facilities in both the radio and optical domains is described. This review complements that by Corradi (this volume) which mainly considers the larger scale emission from the ionized nebulae of these objects.