Discovery of the neutron star nature of SLX 1737-282

被引：31

作者：

in't Zand, JJM

Verbunt, F

Kuulkers, E

Markwardt, CB

Bazzano, A

Cocchi, M

Cornelisse, R

Heise, J

Natalucci, L

Ubertini, P

机构：

[1] Univ Utrecht, Astron Inst, NL-3508 TA Utrecht, Netherlands

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

[3] Univ Maryland, Dept Astron, College Pk, MD 20742 USA

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

[5] CNR, Ist Astrofis Spaziale & Fys Cosm, Area Ric Roma Tor Vergata, I-00133 Rome, Italy

来源：

ASTRONOMY & ASTROPHYSICS | 2002年 / 389卷 / 02期

关键词：

accretion; accretion disks; binaries : close; X-rays; stars; individual; SLX; 1737-282; 2E; 1737.5-2817; 1RXS J174043.1-281806; RX J1740.7-2818; AX J1740.7-2818;

D O I：

10.1051/0004-6361:20020631

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

SLX 1737-282 is a persistent moderately bright X-ray source 1.degrees2 from the Galactic center. X-ray observations with the Wide Field Cameras on BeppoSAX have for the first time revealed the true nature of SLX 1737-282: a 15 min long thermonuclear ash was detected exposing the source as a neutron star in a binary system. The ash was Eddington-limited constraining the distance to between 5 and 8 kpc. We analyze BeppoSAX, ROSAT, and RXTE data on SLX 1737-282. The persistent 0.5-200 keV luminosity is close to or less than 1% of the Eddington limit which implies a rarely-seen circumstance for thermonuclear ash activity.

引用

页码：L43 / L46

页数：4

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