Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986afz....25...33i&link_type=abstract
(Astrofizika, vol. 25, July-Aug. 1986, p. 33-43) Astrophysics (ISSN 0571-7132), vol. 25, no. 1, Jan . 1987, p. 373-380. Translat
Astronomy and Astrophysics
Astrophysics
1
Astronomical Spectroscopy, Binary Stars, Spectrum Analysis, Stellar Spectrophotometry, Absorption Spectra, Continuous Spectra, Radial Velocity, Stellar Composition
Scientific paper
The paper presents the results of an investigation of the spectra of HD 187399 obtained during 1982-1983 with the 6-m telescope of the Special Astrophysical Observatory. Fifty lines were measured and identified, and a spectrophotometric analysis carried out. The lines of hydrogen, helium, and calcium were found to structurally complex. Hydrogen-line displacements were used to determine the expansion velocity of the shell which turned out to be = 105 km/sec. An absorption band 80 A in width was found in the region of K Ca II; it increases steadily in the phases 0.3-0.4 and disappears at the phase 0.5.
Ivanova Nataliya L.
No associations
LandOfFree
Spectroscopic investigation of HD 187399 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 Spectroscopic investigation of HD 187399, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectroscopic investigation of HD 187399 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1654603