2015MNRAS.448..445C

Query : 2015MNRAS.448..445C

2015MNRAS.448..445C - Mon. Not. R. Astron. Soc., 448, 445-455 (2015/March-3)

Rotational effects in thermonuclear Type I bursts: equatorial crossing and directionality of flame spreading.

CAVECCHI Y., WATTS A.L., LEVIN Yu. and BRAITHWAITE J.

Abstract (from CDS):

In a previous study on thermonuclear (type I) bursts on accreting neutron stars, we addressed and demonstrated the importance of the effects of rotation, through the Coriolis force, on the propagation of the burning flame. However, that study only analysed cases of longitudinal propagation, where the Coriolis force coefficient 2Ωcosθ was constant. In this paper, we study the effects of rotation on propagation in the meridional (latitudinal) direction, where the Coriolis force changes from its maximum at the poles to zero at the equator. We find that the zero Coriolis force at the equator, while affecting the structure of the flame, does not prevent its propagation from one hemisphere to another. We also observe structural differences between the flame propagating towards the equator and that propagating towards the pole, the second being faster. In the light of the recent discovery of the low spin frequency of burster IGR J17480-2446 rotating at 11 Hz (for which Coriolis effects should be negligible), we also extend our simulations to slow rotation.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): hydrodynamics - methods: numerical - stars: neutron - X-rays: bursts

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 IGR J17480-2446 LXB 17 48 04.831 -24 46 48.87           ~ 204 0

Query : 2015MNRAS.448..445C

Basic data :
IGR J17480-2446 -- Low Mass X-ray Binary
Other object types: otypes_help 		X (2CXO,CXOGlb,...), LXB (2011MNRAS), Psr (2011A&A), gam (IGR)
ICRS coord. (ep=J2000) : 		17 48 04.831 -24 46 48.87 (X-ray) [ ] D 2011A&A...526L...3P
FK4 coord. (ep=B1950 eq=1950) : 		17 45 00.267 -24 45 50.02 [ ]
Gal coord. (ep=J2000) : 		003.838425 +01.686263 [ ]
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Identifiers (6) :
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2CXO J174804.8-244649 IGR J17480-2446 NAME T5X2
CXOGlb J174804.8-244648 NAME TER 5 X-2 [HWC2006] CX 25

References (204 between 1850 and 2026) (Total 204)
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