RXTE determination of the intermediate polar status of XSS J00564+4548, IGR J17195-4100, and XSS J12270-4859

被引：28

作者：

Butters, O. W. ^{[1
]}

Norton, A. J. ^{[1
]}

Hakala, P. ^{[2
]}

Mukai, K. ^{[3
,4
]}

Barlow, E. J. ^{[1
]}

机构：

[1] Open Univ, Dept Phys & Astron, Milton Keynes MK7 6AA, Bucks, England

[2] Univ Turku, Tuorla Observ, Piikkio 21500, Finland

[3] CRESST, Greenbelt, MD 20771 USA

[4] NASA, Goddard Space Flight Ctr, Xray Astrophys Lab, Greenbelt, MD 20771 USA

来源：

ASTRONOMY & ASTROPHYSICS | 2008年 / 487卷 / 01期

基金：

英国科学技术设施理事会;

关键词：

binaries : close; stars; novae; cataclysmic variables; X-rays : binaries;

D O I：

10.1051/0004-6361:200809942

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Aims. We determine the nature of the intermediate polar candidates XSS J00564+4548, IGR J17195-4100, and XSS J12270-4859. Methods. Pointed RXTE observations searched for intermediate polar characteristics in these candidate systems. Results. XSS J00564+4548 exhibits a period of 465.68 +/- 0.07 s, which we interpret as the spin period, an energy dependent modulation depth, and a spectrum that is fit by a 22 keV photoelectrically absorbed bremsstrahlung with an iron line profile. IGR J17195-4100 shows several candidate periodicities and a spectrum that is fit by a power law with an iron line. XSS J12270-4859 exhibits a candidate spin period of 859.57 +/- 0.64 s and a spectrum that is fit by a power law with no evidence of an iron line. Conclusions. XSS J00564+4548 is confirmed to be an intermediate polar. IGR J17195-4100 and XSS J12270-4859 both show some properties of intermediate polars, but cannot be confirmed as definite members of the class here.

引用

页码：271 / 276

页数：6

共 18 条

[1] 20-100 keV properties of cataclysmic variables detected in the INTEGRAL/IBIS survey [J].

Barlow, E. J. ;

Knigge, C. ;

Bird, A. J. ;

Dean, A. J. ;

Clark, D. J. ;

Hill, A. B. ;

Molina, M. ;

Sguera, V. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2006, 372 (01) :224-232

[2] The changing X-ray light curves of the intermediate polar FO Aquarii [J].

Beardmore, AP ;

Mukai, K ;

Norton, AJ ;

Osborne, JP ;

Hellier, C .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1998, 297 (02) :337-347

[3] XSS J00564+4548 and IGR J00234+6141:: New cataclysmic variables from the RXTE and INTEGRAL all-sky surveys [J].

Bikmaev, I. F. ;

Revnivtsev, M. G. ;

Burenin, R. A. ;

Sunyaev, R. A. .

ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS, 2006, 32 (09) :588-593

[4] The third IBIS/ISGRI soft gamma-ray survey catalog [J].

Bird, A. J. ;

Malizia, A. ;

Bazzano, A. ;

Barlow, E. J. ;

Bassani, L. ;

Hill, A. B. ;

Belanger, G. ;

Capitanio, F. ;

Clark, D. J. ;

Dean, A. J. ;

Fiocchi, M. ;

Goetz, D. ;

Lebrun, F. ;

Molina, M. ;

Produit, N. ;

Renaud, M. ;

Sguera, V. ;

Stephen, J. B. ;

Terrier, R. ;

Ubertini, P. ;

Walter, R. ;

Winkler, C. ;

Zurita, J. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2007, 170 (01) :175-186

[5] The first IBIS/ISGRI soft gamma-ray Galactic Plane survey catalog [J].

Bird, AJ ;

Barlow, EJ ;

Bassani, L ;

Bazzano, A ;

Bodaghee, A ;

Capitanio, F ;

Cocchi, M ;

Del Santo, M ;

Dean, AJ ;

Hill, AB ;

Lebrun, F ;

Malaguti, G ;

Malizia, A ;

Much, R ;

Shaw, SE ;

Stephen, JB ;

Terrier, R ;

Ubertini, P ;

Walter, R .

ASTROPHYSICAL JOURNAL, 2004, 607 (01) :L33-L37

[6]

BRADT HV, 1993, ASTRON ASTROPHYS SUP, V97, P355

[7] RXTE confirmation of the intermediate polar status of Swift J0732.5-1331 [J].

Butters, O. W. ;

Barlow, E. J. ;

Norton, A. J. ;

Mukai, K. .

ASTRONOMY & ASTROPHYSICS, 2007, 475 (02) :L29-L32

[8] H I IN THE GALAXY [J].

DICKEY, JM ;

LOCKMAN, FJ .

ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, 1990, 28 :215-261

[9] Iron line diagnostics of the postshock hot plasma in magnetic cataclysmic variables observed with ASCA [J].

Ezuka, H ;

Ishida, M .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1999, 120 (02) :277-298

[10] XMM-Newton observations of the dwarf nova YZ Cnc in quiescence [J].

Hakala, P ;

Ramsay, G ;

Wheatley, P ;

Harlaftis, ET ;

Papadimitriou, C .

ASTRONOMY & ASTROPHYSICS, 2004, 420 (01) :273-281

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