THE EMISSION-LINE SPECTRUM OF THE HOT R-CORONAE-BOREALIS STAR MV SGR

Citation
G. Pandey et al., THE EMISSION-LINE SPECTRUM OF THE HOT R-CORONAE-BOREALIS STAR MV SGR, Monthly Notices of the Royal Astronomical Society, 282(3), 1996, pp. 889-899
Citations number
28
Categorie Soggetti
Astronomy & Astrophysics
ISSN journal
00358711
Volume
282
Issue
3
Year of publication
1996
Pages
889 - 899
Database
ISI
SICI code
0035-8711(1996)282:3<889:TESOTH>2.0.ZU;2-M
Abstract
Spectra of MV Sgr obtained at CTIO in 1992 May show many emission line s in the red. Most of the emission lines show two components with a mi nimum centred at the stellar velocity. Species represented include H, He I, Ti II and Fe II. Of special interest is emission in the Li I 670 7-Angstrom resonance doublet. [O I] and [N II] emission indicate the p resence of a nebula around the star. The radial velocity of the absorp tion lines (Al III, Si III, N II and C II) and Fe II emission lines ag rees with the radial velocity given by Jeffery et al.