2001A&A...373..199K


Query : 2001A&A...373..199K

2001A&A...373..199K - Astronomy and Astrophysics, volume 373, 199-210 (2001/7-1)

Doppler imaging of stellar surface structure. XVI. A time-series analysis of the moderately-rotating K1-giant σ Geminorum.

KLOVARI Z., STRASSMEIER K.G., BARTUS J., WASHUETTL A., WEBER M. and RICE J.B.

Abstract (from CDS):

We present a simultaneous photometric and spectroscopic imaging analysis of the long-period RS CVn binary σ Gem, covering 3.6 consecutive rotation cycles with high time resolution. From six overlapping but consecutive Doppler maps we trace the evolution of individual spots throughout the time range covered. All spots group either along a band at approximately +45° latitude and a width of 30°, or appear centered at the equator. No polar spot is detected. We did not find a conclusive migration pattern from the cross-correlation maps from one rotation to the next and attribute this to a masking effect of short-term spot changes.

Abstract Copyright:

Journal keyword(s): stars: activity - stars: imaging - stars: individual: σ Gem - stars: late-type - starspots

Simbad objects: 10

goto Full paper

goto View the references in ADS

Number of rows : 10
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 V* XX Tri RS* 02 03 47.1141597864 +35 35 28.665702672   9.52 8.42     K0III 128 0
2 HD 22468 RS* 03 36 47.2904292073 +00 35 15.943692002 7.09 6.79 5.90     K2:Vnk 1168 0
3 V* YY Men Ro* 04 58 17.9369735112 -75 16 37.987856868   9.11 8.05     K1IIIp 125 0
4 HD 60318 ** 07 35 08.8032282360 +30 57 39.304643436   6.366 5.347     K0III 120 0
5 * sig Gem RS* 07 43 18.7276907303 +28 53 00.631838445 6.38 5.41 4.29 3.37 2.79 K1IIIe 478 0
6 V* IL Hya RS* 09 24 49.0136973144 -23 49 34.714396272   8.38 7.37     K2IV/Vp 169 0
7 V* HU Vir RS* 12 13 20.6914862928 -09 04 46.880926320   9.69 8.71   7.639 K1V 146 0
8 V* V2075 Cyg RS* 21 55 14.4582205776 +44 25 06.904799760   8.56 7.49     G8III 43 0
9 V* HK Lac RS* 22 04 56.6083608840 +47 14 04.479131004   8.01 6.96     K0III 242 0
10 V* IM Peg RS* 22 53 02.2663977960 +16 50 28.300547040   7.024 5.890     K2III 339 1

To bookmark this query, right click on this link: simbad:objects in 2001A&A...373..199K and select 'bookmark this link' or equivalent in the popup menu