AXPs and X-ray-dim isolated neutron stars: recent XMM-Newton and Chandra results

被引:46
作者
Haberl, F [1 ]
机构
[1] Max Planck Inst Extraterr Phys, D-85741 Garching, Germany
来源
HIGH-ENERGY STUDIES OF SUPERNOVA REMNANTS AND NEUTRON STARS | 2004年 / 33卷 / 04期
关键词
isolated neutron stars; X-ray spectra; XMM-Newton results; Chandra results;
D O I
10.1016/j.asr.2003.07.022
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
To date more than half a dozen X-ray-dim isolated neutron stars are known. Their X-ray spectra are characterized by soft blackbody-like emission (kT similar to 50-120 eV) without indication for harder, non-thermal components. These stars apparently show no radio emission and no association with supernova remnants. Four of them exhibit pulsations in their X-ray flux with periods in the range 8.39-22.7 s. Similar pulse periods were found from AXPs, maybe suggesting evolutionary connections. I will review the recent observational results from X-ray-dim isolated neutron stars obtained by the major X-ray observatories XMM-Newton and Chandra. Spectral and temporal characteristics, inferred luminosities and magnetic field strengths will be compared with those of AXPs. (C) 2004 COSPAR. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:638 / 644
页数:7
相关论文
共 44 条
[1]   CAN WE OBSERVE ACCRETING, ISOLATED NEUTRON-STARS [J].
BLAES, O ;
MADAU, P .
ASTROPHYSICAL JOURNAL, 1993, 403 (02) :690-705
[2]   The thermal radiation of the isolated neutron star RX J1856.5-3754 observed with Chandra and XMM-Newton [J].
Burwitz, V ;
Haberl, F ;
Neuhäuser, R ;
Predehl, P ;
Trümper, J ;
Zavlin, VE .
ASTRONOMY & ASTROPHYSICS, 2003, 399 (03) :1109-1114
[3]   The chandra LETGS high resolution X-ray spectrum of the isolated neutron star RX J1856.5-3754 [J].
Burwitz, V ;
Zavlin, VE ;
Neuhäuser, R ;
Predehl, P ;
Trümper, J ;
Brinkman, AC .
ASTRONOMY & ASTROPHYSICS, 2001, 379 (02) :L35-L38
[4]   Modelling the spin pulse profile of the isolated neutron star RX J0720.4-3125 observed with XMM-Newton [J].
Cropper, M ;
Zane, S ;
Ramsay, G ;
Haberl, F ;
Motch, C .
ASTRONOMY & ASTROPHYSICS, 2001, 365 (01) :L302-L307
[5]   Is RX J1856.5-3754 a quark star? [J].
Drake, JJ ;
Marshall, HL ;
Dreizler, S ;
Freeman, PE ;
Fruscione, A ;
Juda, M ;
Kashyap, V ;
Nicastro, F ;
Pease, DO ;
Wargelin, BJ ;
Werner, K .
ASTROPHYSICAL JOURNAL, 2002, 572 (02) :996-1001
[6]   XMM-Newton observations of the isolated neutron star RX J0806.4-4123 [J].
Haberl, F ;
Zavlin, VE .
ASTRONOMY & ASTROPHYSICS, 2002, 391 (02) :571-576
[7]  
Haberl F, 1997, ASTRON ASTROPHYS, V326, P662
[8]  
Haberl F, 1999, ASTRON ASTROPHYS, V351, pL53
[9]   Isolated neutron stars in the ROSAT survey [J].
Haberl, F ;
Motch, C ;
Pietsch, W .
ASTRONOMISCHE NACHRICHTEN, 1998, 319 (1-2) :97-100
[10]  
HABERL F, 2002, INT WORKSH MARS SIC