HST & VLA imaging of the symbiotic star HM Sge

Details HST & VLA imaging of the symbiotic star HM Sge HST & VLA imaging of the symbiotic star HM Sge

Jan 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001iaus..205..306e&link_type=abstract

Galaxies and their Constituents at the Highest Angular Resolutions, Proceedings of IAU Symposium #205, held 15-18 August 2000 at

Astronomy and Astrophysics

Astrophysics

Scientific paper

Symbiotic stars are important to the study of many branches of astrophysics. These include interacting binaries, mass loss, accretion physics, thermonuclear runaways on white dwarf surfaces, interacting winds, photoionization and radiative transfer in gaseous nebulae. and dust and gas chemistry in the presence of a hard radiation field. We have studied the circumstellar nebulae of a number of these objects using sub-arcsecond resolution HST and radio (MERLIN and VLA) imaging. These data sets allow us to probe physical parameters in several systems down to the order of the binary separation. In the radio, our programme now spans several years and this enables us to use long-term variability in the observed morphology to test competing models of the circumstellar environment and to determine the relative positions of the central binary stars in some important instances.

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