SPIN-DOWN OF THE LONG-PERIOD ACCRETING PULSAR 4U 2206+54

被引：27

作者：

Finger, Mark H. ^{[1
,2
]}

Ikhsanov, Nazar R. ^{[1
,3
,4
]}

Wilson-Hodge, Colleen A. ^{[3
]}

Patel, Sandeep K. ^{[5
]}

机构：

[1] Natl Space Sci & Technol Ctr, Huntsville, AL USA

[2] Univ Space Res Assoc, Huntsville, AL 35806 USA

[3] NASA, Space Sci Off, George C Marshall Space Flight Ctr, Huntsville, AL 35812 USA

[4] Pulkovo Observ, St Petersburg 196140, Russia

[5] Opt Sci Corp, Huntsville, AL 35806 USA

来源：

ASTROPHYSICAL JOURNAL | 2010年 / 709卷 / 02期

基金：

俄罗斯基础研究基金会; 美国国家航空航天局;

关键词：

accretion; accretion disks; pulsars: individual (4U 2206+54); X-rays: binaries; X-RAY BINARY; MAGNETIC NEUTRON-STARS; SOURCE 4U-2206+54; WIND-ACCRETION; FIELD DECAY; ORIGIN; MODEL; DISKS;

D O I：

10.1088/0004-637X/709/2/1249

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

4U 2206+54 is a high-mass X-ray binary which has been suspected to contain a neutron star accreting from the wind of its companion, BD+53 degrees 2790. Reig et al. have recently detected 5560 s period pulsations in both Rossi X-ray Timing Explorer (RXTE) and International Gamma-ray Astrophysics Laboratory observations which they conclude are due to the spin of the neutron star. We present observations made with Suzaku which are contemporaneous with their RXTE observation of this source. We find strong pulsations at a period of 5554 +/- 9 s in agreement with their results. We also present a reanalysis of BeppoSAX observations of 4U 2206+54 made in 1998, in which we find strong pulsations at a period of 5420 +/- 28 s, revealing a spin-down trend in this long-period accreting pulsar. Analysis of these data suggests that the neutron star in this system is an accretion-powered magnetar.

引用

页码：1249 / 1256

页数：8

共 38 条

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Wang, Wei
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2009, 398 (03) : 1428 - 1434
[22] Further evidence for the presence of a neutron star in 4U 2206+54. INTEGRAL and VLA observations
Blay, P
Ribó, M
Negueruela, I
Torrejon, JM
Reig, P
Camero, A
Mirabel, IF
Reglero, V
ASTRONOMY & ASTROPHYSICS, 2005, 438 (03): : 963 - 972
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Ribó, M
Negueruela, I
Blay, P
Torrejón, JM
Reig, P
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[24] Timing of the accreting millisecond pulsar IGR J17591-2342: evidence of spin-down during accretion
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Burderi, L.
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[26] Understanding the coexistence of spin-up and spin-down behaviours in long-period X-ray pulsars
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MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2020, 492 (01) : 762 - 769
[27] INTEGRAL/IBIS observations of a hard X-ray outburst in high-mass X-ray binary 4U 2206+54
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[28] A Bulk and Thermal Comptonization Model for the Accreting Pulsar 4U 0115+63
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[29] Detection of the free precession period of the accreting neutron star in 4U 1820-30
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[30] ACCELERATED ORBITAL EXPANSION AND SECULAR SPIN-DOWN OF THE ACCRETING MILLISECOND PULSAR SAX J1808.4-3658
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