2007A&A...469..681D


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.07CET05:12:25

2007A&A...469..681D - Astronomy and Astrophysics, volume 469, 681-686 (2007/7-2)

The influence of Stark broadening on Cr II spectral line shapes in stellar atmospheres.

DIMITRIJEVIC M.S., RYABCHIKOVA T., SIMIC Z., POPOVIC L.C. and DACIC M.

Abstract (from CDS):

We consider the effect of Stark broadening on the shapes of CrII spectral lines observed in stellar atmospheres of the middle part of the main sequence. Stark broadening parameters were calculated by the semiclassical perturbation approach. For stellar spectra synthesis, the improved version SYNTH3 of the code synth for synthetic spectrum calculations was used. Stark broadening parameters for Crii spectral lines of seven multiplets belonging to 4s-4p transitions were calculated. New calculated Stark parameters were applied to the analysis of CrII line profiles observed in the spectrum of Cr-rich star HD 133792. We found that Stark broadening mechanism is very important and should be taken into account, especially in the study of Cr abundance stratification.

Abstract Copyright:

Journal keyword(s): stars: chemically peculiar - line: profiles - atomic processes

CDS comments: HD 133972 is a misprint for HD 133792

Simbad objects: 6

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Number of rows : 6

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 * alf UMi cC* 02 31 49.09456 +89 15 50.7923 3.00 2.62 2.02 1.53 1.22 F8Ib 619 2
2 BD-06 1253 Ae* 05 36 25.4313245626 -06 42 57.684449700   11.65 10.9 10.29   A1e 408 1
3 * 53 Cam a2* 08 01 42.4313674994 +60 19 27.801603076   6.177 6.008     A3VpSrSiCrEu 385 0
4 HD 133792 * 15 09 25.5214568039 -63 38 34.552502511   6.298 6.247     ApSrCrEu 72 0
5 V* XX Oph ** 17 43 56.4967929636 -06 16 08.787105588 10.51 9.81 8.59     M5IIe+Aep 141 0
6 V* V473 Lyr cC* 19 15 59.4894683081 +27 55 34.683764506 7.18 6.770 6.153     F8Ib-II 207 0

    Equat.    Gal    SGal    Ecl

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2021.03.07-05:12:25

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