2007BaltA..16..191K


Query : 2007BaltA..16..191K

2007BaltA..16..191K - Baltic Astronomy, 16, 191-198 (2007/August-0)

Optical spectrometry of the post-AGB star HD 161796.

KIPPER T.

Abstract (from CDS):

The high-resolution spectrum of the post-AGB star HD161796 is analyzed. The derived atmospheric parameters are: T_ eff_=7250±200 K, logg=0.5±0.3 and ξ_ t_=4.5±0.5 km/s. The star is found to be mildly metal deficient with [Fe/H] = -0.30. The C, N, O and Na - S abundances are enhanced. The abundances of iron peak elements follow those of Fe. The elements produced in s-process are considerably underabundant and the r-process elements slightly underabundant. The star is found to be more luminous (MV←6 mag) and more distant (d>3.6 kpc) than was considered earlier.

Abstract Copyright: ∼

Journal keyword(s): stars: atmospheres - stars: AGB and post AGB - stars: individual: HD161796

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 * b Vel s*y 08 40 37.5712078616 -46 38 55.464392884 4.86 4.52 3.81 3.16 2.62 F0Ia 143 0
2 HD 75276 * 08 47 18.8443975992 -46 09 19.498578984 6.71 6.263 5.748 6.73   F0III 80 0
3 HD 161796 pA* 17 44 55.4694563472 +50 02 39.482823336 8.00 7.68 7.21 6.77 6.51 F3Ib 335 0

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