The X-ray bursts within the 2010 outburst of the accreting millisecond X-ray pulsar SAX J1748.9-2021

doi:10.1007/s10509-018-3367-1

CORC > 高能物理研究所 > 中国科学院高能物理研究所 > 粒子天体物理中心

	The X-ray bursts within the 2010 outburst of the accreting millisecond X-ray pulsar SAX J1748.9-2021
	Qu JL(屈进禄); Wu, ZW; Ding, GQ; Li, ZB; Chen, YP; Qu, JL; Chen YP(陈玉鹏)
刊名	ASTROPHYSICS AND SPACE SCIENCE
	2018
卷号	363 期号:7 页码:146
关键词	Stars: neutron X-rays: bursts Individual (SAX J1748.9-2021)
ISSN号	0004-640X
DOI	10.1007/s10509-018-3367-1
文献子类	Article
英文摘要	With the observations from Rossi X-ray Timing Explorer, we search and study the X-ray bursts of accreting millisecond X-ray pulsar SAX J1748.9-2021 during its 2010 outburst. We find 13 X-ray bursts, including 12 standard type-I X-ray bursts and an irregular X-ray burst which lacks cooling tail. During the outburst, the persistent emission occurred at . We use a combination model of a blackbody (BB), a powerlaw, and a line component to fit the persistent emission spectra. Another BB is added into the combination model to account for the emission of the X-ray bursts due to the thermonuclear burning on the surface of the neutron star. Finally, we modify the combination model with a multiplicative factor , plus a BB to fit the spectra during the X-ray bursts. It is found that the is inversely correlated with the burst flux in some cases. Our analysis suggests that the ignition depth of the irregular X-ray burst is obviously smaller than those of the type-I X-ray bursts. We argue that the detected type-I X-ray bursts originate from helium-rich or pure-helium environment, while the irregular X-ray burst originates from the thermonuclear flash in a shallow ocean.
电子版国际标准刊号	1572-946X
WOS关键词	GLOBULAR-CLUSTER NGC-6440 ; PHOTOSPHERIC RADIUS EXPANSION ; NEUTRON-STAR ; MASS ; DISCOVERY ; TRANSIENT ; RATES ; PULSATIONS ; EVOLUTION ; EMISSION
WOS研究方向	Astronomy & Astrophysics
语种	英语
WOS记录号	WOS:000435076000002
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286021]
专题	高能物理研究所_粒子天体物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Qu JL,Wu, ZW,Ding, GQ,et al. The X-ray bursts within the 2010 outburst of the accreting millisecond X-ray pulsar SAX J1748.9-2021[J]. ASTROPHYSICS AND SPACE SCIENCE,2018,363(7):146.
APA	屈进禄.,Wu, ZW.,Ding, GQ.,Li, ZB.,Chen, YP.,...&陈玉鹏.(2018).The X-ray bursts within the 2010 outburst of the accreting millisecond X-ray pulsar SAX J1748.9-2021.ASTROPHYSICS AND SPACE SCIENCE,363(7),146.
MLA	屈进禄,et al."The X-ray bursts within the 2010 outburst of the accreting millisecond X-ray pulsar SAX J1748.9-2021".ASTROPHYSICS AND SPACE SCIENCE 363.7(2018):146.