An accreting pulsar with extreme properties drives an ultraluminous x-ray source in NGC 5907

doi:10.1126/science.aai8635

GSTDTAP > 地球科学

DOI	10.1126/science.aai8635
	An accreting pulsar with extreme properties drives an ultraluminous x-ray source in NGC 5907
	Israel, Gian Luca 1; 39;Agostino, Daniele 2
	2017-02-24
发表期刊	SCIENCE
ISSN	0036-8075
EISSN	1095-9203
出版年	2017
卷号	355 期号:6327 页码:817-819
文章类型	Article
语种	英语
国家	Italy; Netherlands; Germany; England
英文摘要	Ultraluminous x-ray sources (ULXs) in nearby galaxies shine brighter than any x-ray source in our Galaxy. ULXs are usually modeled as stellar-mass black holes (BHs) accreting at very high rates or intermediate-mass BHs. We present observations showing that NGC 5907 ULX is instead an x-ray accreting neutron star (NS) with a spin period evolving from 1.43 seconds in 2003 to 1.13 seconds in 2014. It has an isotropic peak luminosity of similar to 1000 times the Eddington limit for a NS at 17.1 megaparsec. Standard accretion models fail to explain its luminosity, even assuming beamed emission, but a strong multipolar magnetic field can describe its properties. These findings suggest that other extreme ULXs (x-ray luminosity >= 1041 erg second(-1)) might harbor NSs.
领域	地球科学 ; 气候变化 ; 资源环境
收录类别	SCI-E
WOS记录号	WOS:000395127600036
WOS关键词	MAGNETIZED NEUTRON-STARS ; PHOTON IMAGING CAMERA ; XMM-NEWTON ; NUSTAR ; MASS
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
URL	查看原文
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/195494
专题	地球科学资源环境科学气候变化
作者单位	1.Ist Nazl Astrofis INAF, Osservatorio Astron Roma, I-00078 Monte Porzio Catone, Italy; 2.INAF, Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy; 3.Univ Amsterdam, Anton Pannekoek Inst Astron, NL-1090 GE Amsterdam, Netherlands; 4.Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy; 5.Agenzia Spaziale Italiana Sci Data Ctr, I-00133 Rome, Italy; 6.Scuola Univ Super IUSS Pavia, I-27100 Pavia, Italy; 7.INAF, Osservatorio Astron Padova, I-35122 Padua, Italy; 8.CNR, Ist Matemat Appl & Tecnol Informat E Magenes, I-16149 Genoa, Italy; 9.Max Planck Inst Extraterr Phys, D-85748 Garching, Germany; 10.Univ Padua, Dipartimento Fis & Astron, I-35131 Padua, Italy; 11.Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England; 12.Dr Karl Remeis Sternwarte & Erlangen Ctr Astropar, D-96049 Bamberg, Germany; 13.INAF, Osservatorio Astron Brera, I-20121 Milan, Italy
推荐引用方式 GB/T 7714	Israel, Gian Luca,39;Agostino, Daniele. An accreting pulsar with extreme properties drives an ultraluminous x-ray source in NGC 5907[J]. SCIENCE,2017,355(6327):817-819.
APA	Israel, Gian Luca,&39;Agostino, Daniele.(2017).An accreting pulsar with extreme properties drives an ultraluminous x-ray source in NGC 5907.SCIENCE,355(6327),817-819.
MLA	Israel, Gian Luca,et al."An accreting pulsar with extreme properties drives an ultraluminous x-ray source in NGC 5907".SCIENCE 355.6327(2017):817-819.