A parsec scale X-ray extended structure from the X-ray binary Circinus X-1

被引：15

作者：

Soleri, P. ^{[1
]}

Heinz, S. ^{[2
]}

Fender, R. ^{[1
,3
]}

Wijnands, R. ^{[1
]}

Tudose, V. ^{[1
,4
,5
]}

Altamirano, D. ^{[1
]}

Jonker, P. G. ^{[6
,7
]}

van der Klis, M. ^{[1
]}

Kuiper, L. ^{[6
]}

Kaiser, C. ^{[3
]}

Casella, P. ^{[1
]}

机构：

[1] Univ Amsterdam, Astron Inst Anton Pannekoek, NL-1098 SJ Amsterdam, Netherlands

[2] Univ Wisconsin, Dept Astron, Madison, WI 53705 USA

[3] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England

[4] Acad Romana, Astron Inst, RO-040557 Bucharest, Romania

[5] Res Ctr Atom Phys & Astrophys, RO-077125 Bucharest, Romania

[6] SRON, Netherlands Inst Space Res, NL-3584 CA Utrecht, Netherlands

[7] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2009年 / 397卷 / 01期

关键词：

ISM: jets and outflow; stars: individual: Cir X-1; X-rays: binaries; RESOLUTION CAMERA HRC; RELATIVISTIC OUTFLOW; CIR X-1; RADIO; JET; DISCOVERY; STAR; COMPANION; MODEL; AXAF;

D O I：

10.1111/j.1745-3933.2008.00574.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the results of the analysis of two Chandra observations of Circinus X-1 performed in 2007, for a total exposure time of similar to 50 ks. The source was observed with the High Resolution Camera during a long X-ray low-flux state of the source. Cir X-1 is an accreting neutron star binary system that exhibits ultra-relativistic arcsec-scale radio jets and an extended arcmin-scale radio nebula. Furthermore, a recent paper has shown an X-ray excess on arcmin-scale prominent on the side of the receding radio jet. In our images, we clearly detect X-ray structures on both the side of the receding and the approaching radio jet. The X-ray emission is consistent with a synchrotron origin. Our detection is consistent with neutron star binaries being as efficient as black hole binaries in producing X-ray outflows, despite their shallower gravitational potential.

引用

页码：L1 / L5

页数：5

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