Broad-band characteristics of seven new hard X-ray selected cataclysmic variables

被引：26

作者：

Bernardini, F. ^{[1
,2
]}

de Martino, D. ^{[2
]}

Mukai, K. ^{[3
,4
,5
]}

Russell, D. M. ^{[1
]}

Falanga, M. ^{[6
]}

Masetti, N. ^{[7
,8
]}

Ferrigno, C. ^{[9
]}

Israel, G.

机构：

[1] New York Univ Abu Dhabi, Abu Dhabi 129188, U Arab Emirates

[2] INAF, Osservatorio Astron Capodimonte, Salita Moiariello 16, I-80131 Naples, Italy

[3] NASA, Goddard Space Flight Ctr, CRESST, Greenbelt, MD 20771 USA

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

[5] Univ Maryland Baltimore Cty, Dept Phys, 1000 Hilltop Circle, Baltimore, MD 21250 USA

[6] Int Space Sci Inst, Hallerstr 6, CH-3012 Bern, Switzerland

[7] INAF, Ist Astrofis Spaziale & Fis Cosm, Via Gobetti 101, I-40129 Bologna, Italy

[8] Univ Andres Bello, Dept Ciencias Fis, Fernandez Concha 700, Santiago, Chile

[9] Univ Geneva, ISDC, Dept Astron, Chemin Ecogia 16, CH-1290 Versoix, Switzerland

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2017年 / 470卷 / 04期

基金：

美国国家航空航天局;

关键词：

novae; cataclysmic variables; white dwarfs; X-rays: binaries; X-rays: individual: Swift J0706.8+0325; X-rays: individual: Swift J0746.3-1608 (aka 1RXS J074616.8-161127); X-rays: individual: Swift J0927.7-6945; X-rays: individual: Swift J0958.0-4208; X-rays: individual: PBC J0801.2-4625 (aka 1RXS J080114.6-462324); X-rays: individual: Swift J1701.3-4304 (aka IGR J17014-4306); X-rays: individual: Swift J2113.5+5422; PHOTON IMAGING CAMERA; INTERMEDIATE POLARS; XMM-NEWTON; WHITE-DWARF; BEPPOSAX OBSERVATIONS; LUMINOSITY FUNCTION; ACCRETION FLOWS; LIGHT CURVES; MAGNETIC CV; PERIOD GAP;

D O I：

10.1093/mnras/stx1494

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present timing and spectral analysis of a sample of seven hard X-ray selected cataclysmic variable candidates based on simultaneous X-ray and optical observations collected with XMM-Newton, complemented with Swift/BAT and INTEGRAL /IBIS hard X-ray data and ground-based optical photometry. For six sources, X-ray pulsations are detected for the first time in the range of similar to 296-6098 s, identifying them as members of the magnetic class. Swift J0927.7-6945, Swift J0958.0-4208, Swift J1701.3-4304, Swift J2113.5+5422 and possibly PBC J0801.2-4625are intermediate polars (IPs), while Swift J0706.8+0325 is a short (1.7 h) orbital period polar, the 11th hard X-ray-selected identified so far. X-ray orbital modulation is also observed in Swift J0927.7-6945 (5.2 h) and Swift J2113.5+5422 (4.1 h). Swift J1701.3-4304 is discovered as the longest orbital period (12.8 h) deep eclipsing IP. The spectra of the magnetic systems reveal optically thin multitemperature emission between 0.2 and 60 keV. Energy-dependent spin pulses and the orbital modulation in Swift J0927.7-6945 and Swift J2113.5+5422 are due to intervening local high-density absorbing material (NH similar to 10(22-23) cm(-2)). In Swift J0958.0-4208 and Swift J1701.3-4304, a soft X-ray blackbody (kT similar to 50 and similar to 80 eV) is detected, adding them to the growing group of ` soft' IPs. White dwarf masses are determined in the range of similar to 0.58-1.18M circle dot, indicating massive accreting primaries in five of them. Most sources accrete at rates lower than the expected secular value for their orbital period. Formerly proposed as a long-period (9.4 h) nova-like CV, Swift J0746.3-1608 shows peculiar spectrum and light curves suggesting either an atypical low-luminosity CV or a low-mass X-ray binary.

引用

页码：4815 / 4837

页数：23

共 137 条

[1] FERMI LARGE AREA TELESCOPE THIRD SOURCE CATALOG [J].

Acero, F. ;

Ackermann, M. ;

Ajello, M. ;

Albert, A. ;

Atwood, W. B. ;

Axelsson, M. ;

Baldini, L. ;

Ballet, J. ;

Barbiellini, G. ;

Bastieri, D. ;

Belfiore, A. ;

Bellazzini, R. ;

Bissaldi, E. ;

Blandford, R. D. ;

Bloom, E. D. ;

Bogart, J. R. ;

Bonino, R. ;

Bottacini, E. ;

Bregeon, J. ;

Britto, R. J. ;

Bruel, P. ;

Buehler, R. ;

Burnett, T. H. ;

Buson, S. ;

Caliandro, G. A. ;

Cameron, R. A. ;

Caputo, R. ;

Caragiulo, M. ;

Caraveo, P. A. ;

Casandjian, J. M. ;

Cavazzuti, E. ;

Charles, E. ;

Chaves, R. C. G. ;

Chekhtman, A. ;

Cheung, C. C. ;

Chiang, J. ;

Chiaro, G. ;

Ciprini, S. ;

Claus, R. ;

Cohen-Tanugi, J. ;

Cominsky, L. R. ;

Conrad, J. ;

Cutini, S. ;

D'Ammando, F. ;

de Angelis, A. ;

DeKlotz, M. ;

de Palma, F. ;

Desiante, R. ;

Digel, S. W. ;

Di Venere, L. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2015, 218 (02)

[2] X-RAY-EMISSION REGION OF A WHITE-DWARF WITH ACCRETION [J].

AIZU, K .

PROGRESS OF THEORETICAL PHYSICS, 1973, 49 (04) :1184-1194

[3] Two new intermediate polars with a soft X-ray component [J].

Anzolin, G. ;

de Martino, D. ;

Bonnet-Bidaud, J. -M. ;

Mouchet, M. ;

Gaensicke, B. T. ;

Matt, G. ;

Mukai, K. .

ASTRONOMY & ASTROPHYSICS, 2008, 489 (03) :1243-1254

[4] Broad-band properties of the hard X-ray cataclysmic variables IGR J00234+6141 and 1RXS J213344.1+510725 [J].

Anzolin, G. ;

de Martino, D. ;

Falanga, M. ;

Mukai, K. ;

Bonnet-Bidaud, J. -M. ;

Mouchet, M. ;

Terada, Y. ;

Ishida, M. .

ASTRONOMY & ASTROPHYSICS, 2009, 501 (03) :1047-1058

[5] ACCRETION-POWERED PULSATIONS IN AN APPARENTLY QUIESCENT NEUTRON STAR BINARY [J].

Archibald, Anne M. ;

Bogdanov, Slavko ;

Patruno, Alessandro ;

Hessels, Jason W. T. ;

Deller, Adam T. ;

Bassa, Cees ;

Janssen, Gemma H. ;

Kaspi, Vicky M. ;

Lyne, Andrew G. ;

Stappers, Ben W. ;

Tendulkar, Shriharsh P. ;

D'Angelo, Caroline R. ;

Wijnands, Rudy .

ASTROPHYSICAL JOURNAL, 2015, 807 (01)

[6] A Radio Pulsar/X-ray Binary Link [J].

Archibald, Anne M. ;

Stairs, Ingrid H. ;

Ransom, Scott M. ;

Kaspi, Victoria M. ;

Kondratiev, Vladislav I. ;

Lorimer, Duncan R. ;

McLaughlin, Maura A. ;

Boyles, Jason ;

Hessels, Jason W. T. ;

Lynch, Ryan ;

van Leeuwen, Joeri ;

Roberts, Mallory S. E. ;

Jenet, Frederick ;

Champion, David J. ;

Rosen, Rachel ;

Barlow, Brad N. ;

Dunlap, Bart H. ;

Remillard, Ronald A. .

SCIENCE, 2009, 324 (5933) :1411-1414

[7]

Arnaud KA, 1996, ASTR SOC P, V101, P17

[8] 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

[9] A state change in the low-mass X-ray binary XSS J12270-4859 [J].

Bassa, C. G. ;

Patruno, A. ;

Hessels, J. W. T. ;

Keane, E. F. ;

Monard, B. ;

Mahony, E. K. ;

Bogdanov, S. ;

Corbel, S. ;

Edwards, P. G. ;

Archibald, A. M. ;

Janssen, G. H. ;

Stappers, B. W. ;

Tendulkar, S. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2014, 441 (02) :1825-1830

[10] THE 70 MONTH SWIFT-BAT ALL-SKY HARD X-RAY SURVEY [J].

Baumgartner, W. H. ;

Tueller, J. ;

Markwardt, C. B. ;

Skinner, G. K. ;

Barthelmy, S. ;

Mushotzky, R. F. ;

Evans, P. A. ;

Gehrels, N. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2013, 207 (02)

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