J/other/A+ARV/17.251 Stars observed with Doppler imaging (Strassmeier, 2009)
Starspots.
Strassmeier K.G.
<Astron. Astrophys. Rev., 17, 251-308 (2009)>
=2009A&ARv..17..251S 2009A&ARv..17..251S
ADC_Keywords: Stars, fundamental ; Magnetic fields ; Effective temperatures
Keywords: starspots - stars: activity - stars: imaging - sunspots -
magnetic fields - techniques: polarimetric - stars: rotation -
exoplanets
Abstract:
Starspots are created by local magnetic fields on the surfaces of
stars, just as sunspots. Their fields are strong enough to suppress
the overturning convective motion and thus block or redirect the
flow of energy from the stellar interior outwards to the surface and
consequently appear as locally cool and therefore dark regions against
an otherwise bright photosphere. This article is an attempt to review
our current knowledge of starspots.
Description:
Table 1 is a list of cool stars that have-so far-been investigated
with the Dopplerimaging technique and that have had their spots
detected and mapped.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 55 79 Late-type stars with Doppler images (as of 2008)
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See also:
http://www.aip.de/groups/activity/ : AIP Stellar Activity Group
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- SpType MK spectral type
10- 21 A12 --- Name Star name
23- 29 A7 --- Type Type of star (1)
31- 34 I4 K Teff ? Effective temperature
35 A1 --- u_Teff [?)] Uncertainty flag on Teff
36- 42 F7.4 d Per Period
43 A1 --- u_Per [)] Uncertainty flag on Per
44- 48 F5.1 km/s v.equ ? Equatorial rotation velocity
49 A1 --- u_v.equ [?] Uncertainty flag on v
50- 54 F5.2 solRad Rad ? Star radius
55 A1 --- u_Rad [?)] Uncertainty flag on Rad
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Note (1): the stars are classified in the following categories:
RS CVn = close binary with evolved component(s);
BY Dra = close binary with main-sequence components;
W UMa = contact binary;
CV = cool secondary in a cataclysmic variable
Pre-CV = pre-stage to CV
CBPN = central binary of planetary nebula;
Alp Per = member of alpha-Per cluster,
Pleiad = member of Pleiades cluster, single star;
WTTS = weak-lined T Tauri star;
CTTS = classical T Tauri star;
FK Com = single rapidly-rotating giant;
Eff.-s = effectively single star (but component in wide binary);
Single = single star, unspecified.
History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 07-May-2010