Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.263..443m&link_type=abstract
In ESA Proceedings of an International Symposium on New Insights in Astrophysics. Eight Years of UV Astronomy with IUE p 443-44
Astronomy and Astrophysics
Astronomy
Accretion Disks, Plasma Jets, Stellar Spectra, Symbiotic Stars, Iue, Radio Astronomy, Ultraviolet Spectra
Scientific paper
The peculiar symbiotic variable R Aquarii embodies a number of distinguishing properties, the most significant being a column of nebular emission that extends NE from the central star, that was discovered nearly a decade ago. High spatial resolution VLA observations indicate the jet is composed of four discrete radio emitting knots, which form a broad arc, about 6arcsec.5 in extent. The authors have monitored the jet and central star with IUE LORES-SWP λλ1200 - 2000 spectra, in order to detect possible temporal variations. The absolute line intensities of N V, C IV and He II, as well as numerous other ionic species in the jet, were found to vary on a timescale of ≡1.5 years. The authors present these new findings, in context with high spatial resolution radio VLA maps and SiO maser millimeter interferometer observations.
Hollis Jan. M.
Kafatos Menas
Michalitsianos Andrew G.
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