Other
Scientific paper
Jul 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003hst..prop.9743k&link_type=abstract
HST Proposal ID #9743
Other
Hst Proposal Id #9743 Ism And Circumstellar Matter
Scientific paper
To investigate the cause and nature of classical symbiotic outbursts, we initiated a program of multi-wavelength observations of these events. As evidence is mounting that collimated outflows {jets} may be associated with symbiotic outbursts, we also investigate conditions needed for jet production - a question with broad astrophysical relevance. The first target for our campaign - the 2000-2002 outburst of Z Andromedae - confirmed the utility and need for coordinated multi-wavelength observations to make progress in understanding the nature of the outburst mechanisms in symbiotic stars. FUSE ultraviolet data were the cornerstone of this project {which included data from the VLA, MERLIN, ground-based spectroscopy and photometry, Chandra, and XMM, but not HST}. Our Z And observations have motivated us to propose a new scenario which we term the disk-instability trigger. To test this new model, we propose to continue the multi-wavelength campaign approach with observations at several epochs during the outburst of a second target-of-opportunity {TOO}. The evolution of the X-ray and UV spectrum throughout the outburst plays a vital role in distinguishing between the outburst models currently in contention for describing outburst behavior. Analysis of our first campaign has shown that HST observations can play a fundamental role in the multi-wavelength approach. Emission line strengths of the features in the HST-UV, especially when combined with lines of the same species from the other spectral regions, provide diagnostics of the colliding wind/shock region. The combination of high-resolution STIS and FUSE-band absorption features, time-tagged observations, and continua provide a unique opportunity to probe the structure and ionization conditions in the outburst material that can not be accomplished with either ultraviolet region alone.
No associations
LandOfFree
Multi-wavelength Observations of Symbiotic Stars in Outburst does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Multi-wavelength Observations of Symbiotic Stars in Outburst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-wavelength Observations of Symbiotic Stars in Outburst will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1733014