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Differential Fe I Line Shifts as Convective Signatures in R = 40 000 Échelle Spectra?1

Published online by Cambridge University Press:  12 April 2016

Dag Gullberg
Dag Gullberg*
Affiliation:
Lund Observatory, Box 43, SE-22100 Lund, Sweden

Abstract

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The convection in stellar atmospheres causes spectral lines to be more or less blue-shifted. The differential wavelength shift between two groups of spectral lines could be used to characterize the convection. This paper describes such an effort using cross-correlations between R ≈ 40 000 échelle spectra and laboratory wavelength templates.

Type
Part 7. Convection, Line Asymmetry
Information
International Astronomical Union Colloquium , Volume 170: Precise Stellar Radial Velocities , 1999 , pp. 286 - 290
Copyright
Copyright © Astronomical Society of the Pacific 1999

Footnotes

1

Data were obtained at Observatoire de Haute-Provence, France.

References

Baranne, A., Queloz, D., Mayor, M., Adrianzyk, G., Knispel, G., Kohler, D., Lacroix, D., Meunier, J.-P., Rimbaud, G., & Vin, A. 1996, A&AS, 119, 373 Google Scholar
Dravins, D. 1999, these ProceedingsGoogle Scholar
Dravins, D., Gullberg, D., Lindegren, L., & Madsen, S. 1999, these ProceedingsGoogle Scholar
Gray, D.F., & Toner, C.G. 1986, PASP, 98, 499 CrossRefGoogle Scholar
Gray, D.F., & Nagel, T. 1989, ApJ, 341, 421 CrossRefGoogle Scholar
Kurucz, R.L., Furenlid, I., Brault, J., & Testerman, L. 1984, Solar Flux Atlas from 296 to 1300 nm, Sunspot, New Mexico: National Solar Observatory Google Scholar
Madsen, S., Lindegren, L., & Dravins, D. 1998, these ProceedingsGoogle Scholar
Nave, G., Johansson, J., Learner, R.C.M., Thorne, A.P., & Brault, J.W. 1994, ApJS, 94, 221 CrossRefGoogle Scholar
Nordlund, Å., & Dravins, D. 1990, A&A, 228, 155 Google Scholar
Steffen, M., Ludwig, H.-G., & Krüss, A. 1989, A&A, 213, 371 Google Scholar