2000A&A...360.1067K

Query : 2000A&A...360.1067K

2000A&A...360.1067K - Astronomy and Astrophysics, volume 3601067-1076 (2000/8-3)

Study of FK Comae Berenices. II. Spot evolution from 1994 to 1997.

KORHONEN H., BERDYUGINA S.V., HACKMAN T., STRASSMEIER K.G. and TUOMINEN I.

Abstract (from CDS):

We present new surface (Doppler) images of the late-type single giant FK Com for June-July 1996, July-August 1996, April 1997 and June 1997. These images are compared with the previously published images from 1994 and 1995. The consecutive maps are cross-correlated to see the possible migration of the spots and the effects of differential rotation. The cross-correlation confirms an average longitudinal spot migration of 0.22±0.03 in phase within a year. This movement is probably an artifact caused by a difference between the accepted rotation period and the real photometric period for these years. If this is true, then the photometric rotation period for these years is 2.4037d±0.0005. Measurements from these four years and six maps limit the surface differential rotation to α=0.0001±0.0002, where α is the difference between polar and equatorial angular velocities relative to the equatorial angular velocity.

Abstract Copyright: ∼

Journal keyword(s): stars: activity - stars: imaging - stars: individual: FK Comae - stars: late-type - stars: starspots

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* FK Com PM* 13 30 46.7996390256 +24 13 57.781233768   9.04 8.245   7.204 G4III 384 1

Query : 2000A&A...360.1067K

Basic data :
V* FK Com -- High Proper Motion Star
Other object types: otypes_help 		* (HD,AG,...), X (2015A&A,2E,...), ** (**,ADS,...), V* (2012ApJ,ASAS,...), Ae* (1999AJ), PM* (2018yCat), Ro* (2009yCat), Rad (FIRST), NIR (2MASS), Opt (SDSS)
ICRS coord. (ep=J2000) : 		13 30 46.7996390256 +24 13 57.781233768 (Optical) [ 0.0213 0.0151 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		13 28 24.7554185182 +24 29 25.351827412 [ 0.0213 0.0151 90 ]
Gal coord. (ep=J2000) : 		017.0211023931800 +80.6785080564453 [ 0.0213 0.0151 90 ]
Proper motions mas/yr : 		-52.197 -21.927 [0.029 0.014 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -21.00 [5.8] / z(~) -0.000070 [0.000019] / cz -21.00 [5.80]
   D 2007AN....328..889K
Parallaxes (mas): 		4.4529 [0.0303] A 2020yCat.1350....0G
Spectral type: 		G4III C 2009A&ARv..17..251S
Fluxes (12) :
B 9.04 [~] E ~
V 8.245 [0.067] C 2012AcA....62...67K
G 7.918353 [0.003084] C 2020yCat.1350....0G
I 7.204 [0.040] C 2012AcA....62...67K
J 6.541 [0.021] C 2003yCat.2246....0C
H 6.089 [0.018] C 2003yCat.2246....0C
K 5.997 [0.015] C 2003yCat.2246....0C
u (AB) 13.823 [0.011] D 2009ApJS..182..543A
g (AB) 13.123 [0.008] C 2009ApJS..182..543A
r (AB) 12.559 [0.01] C 2009ApJS..182..543A
i (AB) 12.329 [0.011] D 2009ApJS..182..543A
z (AB) 7.759 [0.001] C 2009ApJS..182..543A
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Identifiers (40) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HD 117555 1ES 1328+24.4 PPM 102654 V* FK Com
** H 70C FIRST J133046.8+241358 RX J1330.8+2413 WDS J13309+2414C
ADS 8929 C GC 18264 RX J1330.7+2413 2XMM J133046.8+241357
AG+24 1389 GCRV 64172 1RXS J133047.5+241349 YZ 0 878
ASAS J133047+2413.7 GEN# +1.00117555 SAO 82867 YZ 24 4805
BD+24 2592 GSC 01997-00553 SDSS J133046.75+241357.8 [ZEH2003] RX J1330.7+2413 1
CCDM J13308+2414C HIC 65915 TIC 368128155 AAVSO 1326+24
CMC 408965 HIP 65915 TYC 1997-553-1 Gaia DR3 1443378980216311552
2E 3074 IDS 13261+2445 C UBV M 19464 Gaia DR1 1443378975920360704
2E 1328.4+2429 2MASS J13304681+2413577 uvby98 100117555 Gaia DR2 1443378980216311552

References (384 between 1850 and 2026) (Total 384)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 2    Diameter : 1    Distance : 2    Var : 2    Rot : 3    Plx : 5    PM : 6    SpT : 4   

   

Observing logs
IUE : 96    XMM : 2   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : V* FK Com

Link by name to the catalogue in VizieR :

HD 117555 AG+24 1389 BD+24 2592 CCDM J13308+2414C 2E 3074
FIRST J133046.8+241358 GSC 01997-00553 HIC 65915 HIP 65915 2MASS J13304681+2413577
PPM 102654 1RXS J133047.5+241349 SAO 82867 SDSS J133046.75+241357.8 TYC 1997-553-1
uvby98 100117555 V* FK Com WDS J13309+2414C Gaia DR3 1443378980216311552 Gaia DR1 1443378975920360704
Gaia DR2 1443378980216311552

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