Solar-like oscillation amplitudes and line-widths as a probe for turbulent convection in stars - INSPIRE

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Solar-like oscillation amplitudes and line-widths as a probe for turbulent convection in stars

Reza Samadi
(
- Meudon Observ.
)
,
K. Belkacem
(
- Meudon Observ.
)
,
M.-J. Goupil
(
- Meudon Observ.
)
,
F. Kupka
(
- Garching, Max Planck Inst.
)
,
M.-A. Dupret
(
- Meudon Observ.
)

Nov, 2006

9 pages

Published in:

IAU Symp. 239 (2007) 349

Contribution to:

IAU Symposium 239, 349

e-Print:

astro-ph/0611760 [astro-ph]

DOI:

10.1017/S1743921307000713

View in:

ADS Abstract Service

reference search3 citations

Citations per year

Abstract: (arXiv)

Excitation of solar-like oscillations is attributed to turbulent convection and takes place at the upper-most part of the outer convective zones. Amplitudes of these oscillations depend on the efficiency of the excitation processes as well as on the properties of turbulent convection. We present past and recent improvements on the modeling of those processes. We show how the mode amplitudes and mode line-widths can bring information about the turbulence in the specific cases of the Sun and Alpha Cen A.

CONVECTION
SUN OSCILLATIONS
STARS OSCILLATIONS
ALPHA CEN A

References(16)

Figures(0)

- Mon.Not.Roy.Astron.Soc. 255 639

- Astron.Astrophys. 433 349

Observing solar-like oscillations: recent results

Timothy R. Bedding
(
- Sydney U.
)
,
Hans Kjeldsen
(
- Aarhus U.
)

- Mem.Soc.Ast.It. 76 (2004) 4,
- Mem.Soc.Ast.It. 77 (2006) 384
•
e-Print:
- astro-ph/0510416

Oscillation frequencies and mode lifetimes in Alpha Centauri A

et al.

- Astrophys.J. 614 (2004) 380-385
•
e-Print:
- astro-ph/0406471
•
DOI:
- 10.1086/423484

- Mon.Not.Roy.Astron.Soc. 298 L7

- Mon.Not.Roy.Astron.Soc. 360 859

- Astrophys.J. 212 243

- Astrophys.J. 214 196

- J.Atmos.Sci. 59 2729

Solar-like oscillations in alpha centauri b

Hans Kjeldsen
(
- Aarhus U.
)
,
Timothy R. Bedding
(
- Sydney U.
)
,
R.Paul Butler
(
- Carnegie Inst., Wash., D.C., DTM
)
,
Jorgen Christensen-Dalsgaard
(
- Aarhus U.
)
,
Laszlo L. Kiss
(
- Sydney U.
)

et al.

- Astrophys.J. 635 (2005) 1281-1290
•
e-Print:
- astro-ph/0508609
•
DOI:
- 10.1086/497530

- Mem.Soc.Ast.It. 77 539

Constraining fundamental stellar parameters using seismology. Application to Alpha Centauri AB

Andrea Miglio
(
- Liege U.
)
,
J. Montalban
(
- Liege U.
)

- Astron.Astrophys. 441 (2005) 615
•
e-Print:
- astro-ph/0505537
•
DOI:
- 10.1051/0004-6361:20052988

- Astron.Astrophys. 296 127

Excitation of stellar p-modes by turbulent convection: 1. Theoretical formulation

- Astron.Astrophys. 370 (2001) 136
•
e-Print:
- astro-ph/0101109
•
DOI:
- 10.1051/0004-6361:20010212

Oscillation power spectra of the Sun and of Alpha Cen A: Observations versus models

Reza Samadi
(
- Meudon Observ.
)
,
M.J. Goupil
(
- Meudon Observ.
)
,
F. Baudin
(
- Orsay, IAS
)
,
D. Georgobiani
(
- NASA, Ames
)
,
R. Trampedach
(
- Res. Sch. Astron. Astrophys., Weston Creek
)

et al.

- ESA Spec.Publ. 559 (2004) 615
•
e-Print:
- astro-ph/0409325

- Astrophys.J. 499 914