2009ApJ...707.1296P

Query : 2009ApJ...707.1296P

2009ApJ...707.1296P - Astrophys. J., 707, 1296-1309 (2009/December-3)

1 Hz flaring in SAX J1808.4-3658: flow instabilities near the propeller stage.

PATRUNO A., WATTS A., KLEIN-WOLT M., WIJNANDS R. and VAN DER KLIS M.

Abstract (from CDS):

We present a simultaneous periodic and aperiodic timing study of the accreting millisecond X-ray pulsar SAX J1808.4-3658. We analyze five outbursts of the source and for the first time provide a full and systematic investigation of the enigmatic phenomenon of the 1 Hz flares observed during the final stages of some of the outbursts. We show that links between pulsations and 1 Hz flares might exist, and suggest that they are related with hydrodynamic disk instabilities that are triggered close to the disk-magnetosphere boundary layer when the system is entering the propeller regime.

Abstract Copyright: ∼

Journal keyword(s): stars: individual: SAX J1808.4-3658 - stars: neutron - X-rays: stars

CDS comments: IGR J00291+294 is a misprint for XTE J1807-294.

Simbad objects: 8

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Number of rows : 8
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* V1037 Cas LXB 00 29 03.06 +59 34 19.0           ~ 283 1
2 [GHJ2008] 3 HXB 16 50 00.980 -49 57 43.60           K4V 422 0
3 NAME Rapid Burster LXB 17 33 24.0 -33 23 19           ~ 429 2
4 3FHL J1746.2-2852 LXB 17 44 33.09 -28 44 27.0           ~ 559 0
5 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
6 SAX J1750.8-2900 LXB 17 50 24.42 -29 02 15.4           ~ 146 0
7 [KRL2007b] 304 LXB 18 06 59.8 -29 24 30           ~ 228 0
8 SAX J1808.4-3658 LXB 18 08 27.58 -36 58 43.9           ~ 1051 0

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