SIMBAD references

2011AJ....142...51L - Astron. J., 142, 51 (2011/August-0)

The distribution of the elements in the Galactic disk. II. Azimuthal and radial variation in abundances from Cepheids.

LUCK R.E., ANDRIEVSKY S.M., KOVTYUKH V.V., GIEREN W. and GRACZYK D.

Abstract (from CDS):

This paper reports on the spectroscopic investigation of 101 Cepheids in the Carina region. These Cepheids extend previous samples by about 35% in number and increase the amount of the Galactic disk coverage especially in the direction of l ~ 270°. The new Cepheids do not add much information to the radial gradient, but provide a substantial increase in azimuthal coverage. We find no azimuthal dependence in abundance over an 80° angle from the Galactic center in an annulus of 1 kpc depth centered on the Sun. A simple linear fit to the Cepheid data yields a gradient d[Fe/H]/dRG= -0.055±0.003 dex/kpc which is somewhat shallower than found from our previous, smaller Cepheid sample.

Abstract Copyright:

Journal keyword(s): Galaxy: abundances - Galaxy: evolution - stars: abundances - stars: variables: Cepheids

VizieR on-line data: <Available at CDS (J/AJ/142/51): table1.dat table2.dat table3.dat table4.dat>

Status at CDS:  

Simbad objects: 278

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2020.03.28-23:07:13

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