ON CALIBRATIONS USING THE CRAB NEBULA AND MODELS OF THE NEBULAR X-RAY EMISSION

被引：42

作者：

Weisskopf, M. C. ^{[1
]}

Guainazzi, M. ^{[2
]}

Jahoda, K. ^{[3
]}

Shaposhnikov, N. ^{[4
]}

O'Dell, S. L. ^{[1
]}

Zavlin, V. E. ^{[5
]}

Wilson-Hodge, C. ^{[1
]}

Elsner, R. F. ^{[1
]}

机构：

[1] NASA, MSFC, Space Sci Off, Huntsville, AL 35812 USA

[2] ESAC, Madrid, Spain

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

[4] Univ Maryland, CRESST, GSFC, Dept Astron, College Pk, MD 20742 USA

[5] Space Sci Off, MSFC, USRA, Huntsville, AL 35812 USA

来源：

ASTROPHYSICAL JOURNAL | 2010年 / 713卷 / 02期

关键词：

instrumentation: miscellaneous; ISM: supernova remnants; methods: data analysis; pulsars: individual (Crab Pulsar); X-rays: individual (Crab Nebula); SPECTROSCOPY; PULSAR;

D O I：

10.1088/0004-637X/713/2/912

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Motivated by a paper of Kirsch et al. on possible use of the Crab Nebula as a standard candle for calibrating X-ray response functions, we examine consequences of intrinsic departures from a single (absorbed) power law upon such calibrations. We limit our analyses to three more modern X-ray instruments-the ROSAT/PSPC, the RXTE/Proportional Counter Array, and the XMM-Newton/EPIC-pn (burst mode). The results indicate a need to refine two of the three response functions studied. We are also able to distinguish between two current theoretical models for the system spectrum.

引用

页码：912 / 919

页数：8

共 14 条

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