2014MNRAS.438L..76G

Query : 2014MNRAS.438L..76G

2014MNRAS.438L..76G - Mon. Not. R. Astron. Soc., 438, L76-L80 (2014/February-2)

From solar-like to antisolar differential rotation in cool stars.

GASTINE T., YADAV R.K., MORIN J., REINERS A. and WICHT J.

Abstract (from CDS):

Stellar differential rotation can be separated into two main regimes: solar-like when the equator rotates faster than the poles and antisolar when the polar regions rotate faster than the equator. We investigate the transition between these two regimes with 3D numerical simulations of rotating spherical shells. We conduct a systematic parameter study which also includes models from different research groups. We find that the direction of the differential rotation is governed by the contribution of the Coriolis force in the force balance, independently of the model setup (presence of a magnetic field, thickness of the convective layer, density stratification). Rapidly rotating cases with a small Rossby number yield solar-like differential rotation, while weakly rotating models sustain antisolar differential rotation. Close to the transition, the two kinds of differential rotation are two possible bistable states. This study provides theoretical support for the existence of antisolar differential rotation in cool stars with large Rossby numbers.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): convection - MHD - turbulence - Sun: rotation - stars: rotation

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* V1192 Ori RS* 05 00 08.2195942104 +03 17 12.024920724   8.75 7.503   6.223 K1/2III 89 0

Query : 2014MNRAS.438L..76G

Basic data :
V* V1192 Ori -- RS CVn Variable
Other object types: otypes_help 		RS* (), * (HD,AG,...), X (1E,2E,...), V* (ASAS,V*), NIR (2MASS), IR (IRAS)
ICRS coord. (ep=J2000) : 		05 00 08.2195942104 +03 17 12.024920724 (Optical) [ 0.0240 0.0120 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		04 57 30.8275270776 +03 12 48.347578570 [ 0.0240 0.0120 90 ]
Gal coord. (ep=J2000) : 		196.3136453776772 -22.8673833894739 [ 0.0240 0.0120 90 ]
Proper motions mas/yr : 		-1.947 -14.443 [0.035 0.026 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 13.58 [0.1] / z(~) 0.000045 [0.000000] / cz 13.58 [0.10]
   A 2005A&A...430..165F
Parallaxes (mas): 		2.8634 [0.0285] A 2020yCat.1350....0G
Spectral type: 		K1/2III D 1999MSS...C05....0H
Fluxes (7) :
B 8.75 [0.02] D 2000A&A...355L..27H
V 7.503 [0.045] C 2012AcA....62...67K
G 7.088307 [0.002766] C 2020yCat.1350....0G
I 6.223 [0.083] C 2012AcA....62...67K
J 5.285 [0.026] C 2003yCat.2246....0C
H 4.894 [0.076] C 2003yCat.2246....0C
K 4.489 [0.015] C 2003yCat.2246....0C
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Identifiers (22) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HD 31993 2E 0457.5+0312 PPM 148286 YZ 3 1522
AG+03 559 GSC 00102-00451 1RXS J050008.6+031711 Gaia DR2 3238392391860548096
ASAS J050008+0317.1 HIC 23245 SAO 112298 Gaia DR3 3238392391860548096
BD+03 733 HIP 23245 TIC 452765533 Gaia DR1 3238392387562694528
1E 0457.5+0312 IRAS 04575+0312 TYC 102-451-1
2E 1192 2MASS J05000822+0317119 V* V1192 Ori

References (89 between 1850 and 2026) (Total 89)
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 : 3    Diameter : 1    Distance : 2    Var : 2    Rot : 6    Fe/H : 4    Plx : 5    PM : 5    SpT : 2   

   

Observing logs
IUE : 1   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : V* V1192 Ori

Link by name to the catalogue in VizieR :

HD 31993 AG+03 559 BD+03 733 2E 1192 GSC 00102-00451
HIC 23245 HIP 23245 IRAS 04575+0312 2MASS J05000822+0317119 PPM 148286
1RXS J050008.6+031711 SAO 112298 TYC 102-451-1 V* V1192 Ori Gaia DR2 3238392391860548096
Gaia DR3 3238392391860548096 Gaia DR1 3238392387562694528

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