The Swift X-ray telescope

被引：2456

作者：

Burrows, DN

Hill, JE

Nousek, JA

Kennea, JA

Wells, A

Osborne, JP

Abbey, AF

Beardmore, A

Mukerjee, K

Short, ADT

Chincarini, G

Campana, S

Citterio, O

Moretti, A

Pagani, C

Tagliaferri, G

Giommi, P

Capalbi, M

Tamburelli, F

Angelini, L

Cusumano, G

Bräuninger, HW

Burkert, W

Hartner, GD

机构：

[1] Univ Leicester, Space Res Ctr, Leicester LE1 7RH, Leics, England

[2] Osserv Astron Brera, INAF, I-23807 Merate, Italy

[3] ASI Sci Data Ctr, I-00044 Frascati, Italy

[4] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20071 USA

[5] INAF, Ist Astrofis Spaziale & fis Cosm, Sez Palermo, I-90146 Palermo, Italy

[6] Max Planck Inst Extraterr Phys, D-37075 Garching, Germany

来源：

SPACE SCIENCE REVIEWS | 2005年 / 120卷 / 3-4期

基金：

美国国家航空航天局;

关键词：

gamma-ray burst; X-ray telescope; Swift; X-ray instrumentation; X-ray CCD detector; X-ray mirrors;

D O I：

10.1007/s11214-005-5097-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Swift Gamma-Ray Explorer is designed to make prompt multiwavelength observations of gamma-ray bursts (GRBs) and GRB afterglows. The X-ray telescope (XRT) enables Swift to determine GRB positions with a few arcseconds accuracy within 100 s of the burst onset. The XRT utilizes a mirror set built for JET-X and an XMM-Newton/EPIC MOS CCD detector to provide a sensitive broad-band (0.2-10 keV) X-ray imager with effective area of >= 120 cm(2) at 1.5 keV, field of view of 23.6x23.6 arcminutes, and angular resolution of 18 arcseconds (HPD). The detection sensitivity is 2x10(-14) erg cm(-2) s(-1) in 10(4) s. The instrument is designed to provide automated source detection and position reporting within 5 s of target acquisition. It can also measure the redshifts of GRBs with Fe line emission or other spectral features. The XRT operates in an auto-exposure mode, adjusting the CCD readout mode automatically to optimize the science return for each frame as the source intensity fades. The XRT will measure spectra and lightcurves of the GRB afterglow beginning about a minute after the burst and will follow each burst for days or weeks.

引用

页码：165 / 195

页数：31

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