2017A&A...603A...9W

Query : 2017A&A...603A...9W

2017A&A...603A...9W - Astronomy and Astrophysics, volume 603A9-9 (2017/7-1)

Evolution of newborn rapidly rotating magnetars: Effects of R-mode and fall-back accretion.

WANG J.-S. and DAI Z.-G.

Abstract (from CDS):

In this paper we investigate effects of the r-mode instability on a newborn rapidly-rotating magnetar with fall-back accretion. Such a magnetar could usually occur in core-collapse supernovae and gamma-ray bursts. We find that the magnetar's spin and r-mode evolution are influenced by accretion. If the magnetar is sufficiently spun up to a few milliseconds, gravitational radiation leads to the growth of the r-mode amplitude significantly. The maximum r-mode amplitude reaches an order of ∼0.001 when the damping due to the growth of a toroidal magnetic field balances the growth of the r-mode amplitude. If such a sufficiently spun-up magnetar was located at a distance less than 1Mpc, then gravitational waves would be detectable by the Einstein Telescope but would have an extremely low event rate. However, if the spin-up is insufficient, the growth of the r-mode amplitude is mainly due to the accretion torque. In this case, the maximum r-mode amplitude is of the order of ∼10^–6-10^–5.

Abstract Copyright: © ESO, 2017

Journal keyword(s): stars: neutron - gravitational waves - stars: rotation - stars: magnetars - stars: oscillations - accretion, accretion disks - accretion, accretion disks

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 : 2017A&A...603A...9W

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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