Nitrogen abundances in planet-harbouring stars

We present a detailed spectroscopic analysis of nitrogen abundances in 91 solar-type stars, 66 with and 25 without known planetary mass companions. All comparison sample stars and 28 planet hosts were analysed by spectral synthesis of the near-UV NH band at 3360 Å observed at high resolution with th...

Full description

Saved in:
Bibliographic Details
Published in:Astronomy and astrophysics (Berlin) 2004-05, Vol.418 (2), p.703-715
Main Authors: Ecuvillon, A., Israelian, G., Santos, N. C., Mayor, M., García López, R. J., Randich, S.
Format: Article
Language:English
Subjects:
Galaxy: solar neighbourhood
stars: abundances
stars: chemically peculiar
stars: evolution
stars: planetary systems
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We present a detailed spectroscopic analysis of nitrogen abundances in 91 solar-type stars, 66 with and 25 without known planetary mass companions. All comparison sample stars and 28 planet hosts were analysed by spectral synthesis of the near-UV NH band at 3360 Å observed at high resolution with the VLT/UVES, while the near-IR N i 7468 Å was measured in 31 objects. These two abundance indicators are in good agreement. We found that nitrogen abundance scales with that of iron in the metallicity range $-0.6
ISSN:0004-6361
1432-0746
DOI:10.1051/0004-6361:20035717