Circumstellar Nebulae as Fossil Records of the Mass Loss History in Luminous Blue Variables

Details Circumstellar Nebulae as Fossil Records of the Mass Loss History in Luminous Blue Variables Circumstellar Nebulae as Fossil Records of the Mass Loss History in Luminous Blue Variables

Jul 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996hst..prop.6693n&link_type=abstract

HST Proposal ID #6693

Physics

Hst Proposal Id #6693 Hot Stars

Scientific paper

We propose to exploit the unique spatial resolution of HST to perform a detailed imaging study of three nebulae around Galactic Luminous Blue Variables, selected on the basis of their different morphologies and physical characteristics. The observations will be performed in selected lines and in the continuum, in order to derive a complete picture of the ionized gas and dust distribution within the nebulae, at the same high resolution. Extensive ground based coronographic observations of these nebulae suggest that an interacting wind scenario can explain most of the morphologies observed, both on large and small spatial scales. We want to compare the high resolution HST images with the predictions of multidimensional, hydrodynamical models to quantitatively establish 1} the wind velocity and mass loss properties of the pre outburst phase, and 2} the duration of the pre outburst phase. The large scale nebular structure will provide information on the LBV outburst mechanism and related intervening factors {rotation, binarity}. The small scale features will provide information on the local instabilities, such as anisotropies of the wind. An experiment conducted on recent HST images of the galactic LBV AG Carinae has proven the method is effective and has demonstrated its potential as a diagnostic tool, to empirically investigate the mass loss history and, thereby, the evolutionary history of the central star.

Affiliated with

Also associated with

No associations

Rating

Circumstellar Nebulae as Fossil Records of the Mass Loss History in Luminous Blue Variables 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 Circumstellar Nebulae as Fossil Records of the Mass Loss History in Luminous Blue Variables, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circumstellar Nebulae as Fossil Records of the Mass Loss History in Luminous Blue Variables will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1118200