2010MNRAS.405.1845M

Query : 2010MNRAS.405.1845M

2010MNRAS.405.1845M - Mon. Not. R. Astron. Soc., 405, 1845-1853 (2010/July-1)

The evolution of stable magnetic fields in stars: an analytical approach.

MESTEL L. and MOSS D.

Abstract (from CDS):

The absence of a rigorous proof of the existence of dynamically stable, large-scale magnetic fields in radiative stars has been for many years a missing element in the fossil field theory for the magnetic Ap/Bp stars. Recent numerical simulations, by Braithwaite & Spruit and Braithwaite & Nordlund, have largely filled this gap, demonstrating convincingly that coherent global scale fields can survive for times of the order of the main-sequence lifetimes of A stars. These dynamically stable configurations take the form of magnetic tori, with linked poloidal and toroidal fields, that slowly rise towards the stellar surface. This paper studies a simple analytical model of such a torus, designed to elucidate the physical processes that govern its evolution. It is found that one-dimensional numerical calculations reproduce some key features of the numerical simulations, with radiative heat transfer, Archimedes' principle, Lorentz force and Ohmic decay all playing significant roles.

Abstract Copyright: © 2010 The Authors. Journal compilation © 2010 RAS

Journal keyword(s): magnetic fields - MHD - stars: chemically peculiar - stars: early-type - stars: magnetic fields

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 * 53 Cam a2* 08 01 42.4403874648 +60 19 27.806833200   6.177 6.008     A3VpSrSiCrEu 410 0

Query : 2010MNRAS.405.1845M

Basic data :
* 53 Cam -- alpha2 CVn Variable
Other object types: otypes_help 		* (*,AG,...), ** (**,CCDM,...), a2* (2009yCat), SB* (SBC9), V* (V*), UV (TD1), NIR (2MASS)
ICRS coord. (ep=J2000) : 		08 01 42.4403874648 +60 19 27.806833200 (Optical) [ 0.1484 0.1522 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		07 57 26.9518473459 +60 27 48.555853733 [ 0.1484 0.1522 90 ]
Gal coord. (ep=J2000) : 		156.7297815754687 +31.9493869727453 [ 0.1484 0.1522 90 ]
Proper motions mas/yr : 		-25.627 -26.731 [0.204 0.232 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -4.8 [2] / z(~) -0.000016 [0.000007] / cz -4.80 [2.00]
   E 1953GCRV..C......0W
Parallaxes (mas): 		10.2405 [0.2219] A 2020yCat.1350....0G
Spectral type: 		A3VpSrSiCrEu C 1995ApJS...99..135A
Fluxes (6) :
B 6.177 [0.014] D 2000A&A...355L..27H
V 6.008 [0.009] D 2000A&A...355L..27H
G 6.009021 [0.002910] C 2020yCat.1350....0G
J 5.786 [0.021] C 2003yCat.2246....0C
H 5.773 [0.024] C 2003yCat.2246....0C
K 5.773 [0.027] C 2003yCat.2246....0C
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Identifiers (37) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* 53 Cam GEN# +1.00065339 PPM 16446 uvby98 100065339 ABV
** MCA 33 GSC 04126-02446 Renson 17910 V* AX Cam
AG+60 611 HD 65339 SAO 14402 WDS J08017+6019AB
BD+60 1105 HIC 39261 SBC9 3089 WEB 7694
CCDM J08017+6019AB HIP 39261 SKY# 15090 [HFE83] 553
CSI+60 1105 1 HR 3109 TD1 11433 Gaia DR2 1084415852819290112
CSI+60 1105 2 IDS 07532+6036 AB TIC 355807959 Gaia DR3 1084415852819290112
FK5 302 2MASS J08014242+6019277 TYC 4126-2446-1
GC 10822 N30 1834 UBV 7665
GCRV 5316 PMC 90-93 220 UBV M 13837

References (410 between 1850 and 2026) (Total 410)
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 : 30    Diameter : 1    Distance : 2    Rot : 5    Fe/H : 1    Plx : 4    PM : 7    SpT : 6   

   

Observing logs
IUE : 37   

   

External archives :

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

Link by name to the catalogue in VizieR :

AG+60 611 BD+60 1105 CCDM J08017+6019AB FK5 302 GSC 04126-02446
HD 65339 HIC 39261 HIP 39261 HR 3109 2MASS J08014242+6019277
PPM 16446 SAO 14402 TD1 11433 TYC 4126-2446-1 uvby98 100065339 ABV
V* AX Cam WDS J08017+6019AB Gaia DR2 1084415852819290112 Gaia DR3 1084415852819290112

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