Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a...101..118n&link_type=abstract
Astronomy and Astrophysics, vol. 101, no. 1, Aug. 1981, p. 118-131. Research supported by the Swiss National Science Foundation
Astronomy and Astrophysics
Astrophysics
106
Interstellar Extinction, Planetary Nebulae, Stellar Models, Stellar Spectra, Ultraviolet Spectra, Electron Energy, Helium, Hydrogen Ions, Iteration, Iue, Line Spectra, Neon, Spectrum Analysis, Stellar Temperature
Scientific paper
The ultraviolet spectrum of the suspected symbiotic star V 1016 Cygni is interpreted in terms of a single star model. Spectra were obtained at low and high resolutions in the range 1100 to 3200 A by the IUE. From analyses of spectral features including the forbidden Ne V lines, He II UV recombination lines and the continuum flux, an interstellar reddening of 0.41 is derived which corresponds to a distance of 2.2 kpc. Iterative calculations of the parameters of a stellar model with a spherically symmetrical nebular shell are performed to obtain values providing a best fit to the observed spectrum. The results include a stellar temperature of 160,000 K, radius of 0.06 solar radii, with an H(+) region containing 0.00028 solar masses expanding at a rate of 100 km/sec within a much larger neutral hydrogen region expanding at about 40 km/sec. The spectrum is noted to be consistent with that of a very young planetary nebula with excitation temperatures from 8000 to 27,000 K in the H(+) region.
Nussbaumer Harry
Schild Hans
No associations
LandOfFree
A model for V 1016 CYG based on the ultraviolet spectrum 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 A model for V 1016 CYG based on the ultraviolet spectrum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A model for V 1016 CYG based on the ultraviolet spectrum will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1743769