Imaging the Bipolar Nebula around HM Sagittae
Abstract
Hubble Space Telescope Faint Object Camera UV images are presented for HM Sge showing a bipolar optical nebula similar to that in R Aquarii and RX Puppis. The nebula extends to a distance of 0.174" with a P.A. of 135 degrees inside a faint halo extending to a radius of 0.28". A kinematic distance to HM Sge based on positions of features in the nebula is found to be 1.77 +/- 0.1 kpc. Comparisons between our UV images, radio maps taken in 1982 and IUE spectra all demonstrate that this system is still undergoing dramatic changes. (SECTION: Interstellar Medium and Nebulae)
- Publication:
-
Publications of the Astronomical Society of the Pacific
- Pub Date:
- November 1993
- DOI:
- Bibcode:
- 1993PASP..105.1273H
- Keywords:
-
- Nebulae;
- Stellar Envelopes;
- Symbiotic Stars;
- Ultraviolet Astronomy;
- Ultraviolet Photometry;
- Data Reduction;
- Faint Object Camera;
- Hubble Space Telescope;
- Image Analysis;
- Iue;
- Radio Observation;
- Astronomy;
- CATACLYSMIC VARIABLES;
- ISM: JETS AND OUTFLOWS;
- STARS: INDIVIDUAL: HM SAGITTAE