Expansion distances to the symbiotic Miras He 2-104 and He 2-147

Details Expansion distances to the symbiotic Miras He 2-104 and He 2-147 Expansion distances to the symbiotic Miras He 2-104 and He 2-147

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003hst..prop.9965c&link_type=abstract

HST Proposal ID #9965

Physics

Hst Proposal Id #9965 Ism And Circumstellar Matter

Scientific paper

We propose to measure the expansion parallax of the nebulae around the binary symbiotic Miras He 2-104 {the Southern Crab} and He 2-147 by means of high resolution WFPC2/F658N images to be taken at two different epochs. Given the large outward velocities of these nebulae inferred from ground-based spectroscopy, their apparent expansion can be measured by HST imaging over timescales of only 2-3 years. Combining the angular and radial velocity expansions will straightforwardly yield the distance to the proposed targets. Knowledge of the distance to these nebulae will provide a solid contribution to a variety of research fields such as {a} the energetics of nuclear burning in symbiotic binaries containing a Mira, {b} the pulsation mode of binary Miras, and {c} the viability of Mira symbiotics as supersoft X-ray sources and potential progenitors of Type Ia supernovae. HST high resolution imaging of the nebulae combined with ground-based spectroscopy will also address the still debated issue of the formation of bipolar nebulae by collimated outflows from evolved stars.

Affiliated with

Also associated with

No associations

Rating

Expansion distances to the symbiotic Miras He 2-104 and He 2-147 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 Expansion distances to the symbiotic Miras He 2-104 and He 2-147, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expansion distances to the symbiotic Miras He 2-104 and He 2-147 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1133816