2009ApJ...702L..23S

Query : 2009ApJ...702L..23S

2009ApJ...702L..23S - Astrophys. J., 702, L23-L26 (2009/September-1)

What magnetar seismology can teach us about magnetic fields.

SHAISULTANOV R. and EICHLER D.

Abstract (from CDS):

The effect of magnetic fields on the frequencies of toroidal oscillations of neutron stars is derived to lowest order. We suggest that the fine structure in the quasiperiodic oscillation power spectrum of magnetars following giant flares reported by Strohmayer & Watts is magnetic splitting of degenerate toroidal modes, and we estimate a corresponding crustal magnetic field on the order of 10¹⁵ Gauss or more. We suggest that residual m, -m symmetry following such splitting, together with nonaxisymmetric or rotational splitting of the residual symmetry, might allow beating of individual frequency components that is slow enough to be observed.

Abstract Copyright: ∼

Journal keyword(s): pulsars: general - stars: magnetic fields - stars: neutron - stars: oscillations: including pulsations - X-rays: stars

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	PSR J1808-2024	Psr	18 08 39.32	-20 24 40.1						~	1316	2

Query : 2009ApJ...702L..23S

Basic data :

PSR J1808-2024 -- Pulsar
Other object types:	`X (2022MNRAS,AX,...)`, `gB (GBS,GRB,...)`, `Psr (2012ApJ,PSR)`, `gam (INTEGRAL1,INTREF)`, `Rad (MITG)`, `IR ([FMC99])`
ICRS coord. (ep=J2000) :	`18 08 39.32 -20 24 40.1 (X-ray) [ 100 100 90 ] C 2012ApJ...756...27L`
FK4 coord. (ep=B1950 eq=1950) :	`18 05 40.68 -20 25 11.4 [ 100 100 90 ]`
Gal coord. (ep=J2000) :	`009.99584 -00.24194 [ 100 100 90 ]`

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`PSR J1808-2024`	`GRB 041227`	`KONUS 07.01.79`	`SWIFT J1808.6-2024`
`AX 1805.7-2025`	`HETE Trigger 3800`	`MITG J1808-2024`	`2XMM J180839.2-202439`
`CXOU J180839.3-202439`	`HETE Trigger 3801`	`NAME Sgr 1806-20`	`[ABH87] 25`
`GBS 1806-20`	`HETE Trigger 1566`	`PBC J1808.5-2025`	`[FMC99] O`
`GRB 970912`	`INTEGRAL1 84`	`RX J1808.6-2024`	`[KRL2007b] 305`
`GRB 790107`	`INTREF 882`	`SWIFT J1808.7-2024`	`EQ 1805.7-2025`

References (1316 between 1850 and 2026) (Total 1316)
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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Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : PSR J1808-2024

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MITG J1808-2024

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