Synthetic spectra of cool stars for the wavelength range 2550-3200 A

Details Synthetic spectra of cool stars for the wavelength range 2550-3200 A Synthetic spectra of cool stars for the wavelength range 2550-3200 A

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.263..141e&link_type=abstract

In ESA Proceedings of an International Symposium on New Insights in Astrophysics. Eight Years of UV Astronomy with IUE p 141-14

Astronomy and Astrophysics

Astrophysics

2

Cool Stars, Iue, Stellar Spectra, Ultraviolet Spectra, Near Ultraviolet Radiation, Stellar Atmospheres, Stellar Models, Stellar Radiation

Scientific paper

In order to interpret the ultraviolet spectra of cool stars obtained with IUE and to determine the physical conditions in their outer atmospheres, synthetic IUE spectra of stars cooler than the Sun, mainly the Sun and the metal-deficient, carbon-rich CH stars were calculated. Results are encouraging. Synthetic spectra for the Sun over the range 2550 to 3300 A give roughly the observed level of overall emission and relative strengths or various absorption features (Fe II, Mg II, Mg I, and Fe I) although they still require extra sources of continuous opacity longward of 2650 A. Spectra of the CH stars have roughly the correct shape in the ultraviolet continuum for the expected effective temperature, although these models are problematic in that the electron density, hence H(-) opacity, is directly proportional to the Mg-Si-Fe density and the ratio of line to continuum opacity is only slightly affected by changing metallicity.

Affiliated with

Also associated with

No associations

Rating

Synthetic spectra of cool stars for the wavelength range 2550-3200 A 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 Synthetic spectra of cool stars for the wavelength range 2550-3200 A, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synthetic spectra of cool stars for the wavelength range 2550-3200 A will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1294702