Gamma-ray astronomy - Gamma-ray line investigations with the Durham y-ray spectrometer
The study of y-ray lines of astrophysical origin has become more interesting with the introduction of cooled solid state detectors having a very good energy resolution, 1-2 keV at 100 keV, and ca. 2-3 keV around 1 MeV. Some of the single crystal spectrometers currently in use in y-ray astronomy are...
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| Veröffentlicht in: | Philosophical transactions of the Royal Society of London. Series A: Mathematical and physical sciences 1981-06, Vol.301 (1462), p.687-691 |
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| container_title | Philosophical transactions of the Royal Society of London. Series A: Mathematical and physical sciences |
| container_volume | 301 |
| creator | Ayre, C. A. Bhat, P. N. Owens, A. Summers, W. M. Thompson, M.g. |
| description | The study of y-ray lines of astrophysical origin has become more interesting with the introduction of cooled solid state detectors having a very good energy resolution, 1-2 keV at 100 keV, and ca. 2-3 keV around 1 MeV. Some of the single crystal spectrometers currently in use in y-ray astronomy are capable of detecting lines with intensities 3 x 10-3 ph cm-2 s-1 when used on balloon experiments. This is close to the y-ray intensities predicted from some celestial y-ray sources. Knowing the y-ray background precisely and with a reasonable although lengthy observation time it should be possible to detect lines from candidate celestial sources, for example neutron stars, Seyfert galaxies or the galactic centre. |
| doi_str_mv | 10.1098/rsta.1981.0152 |
| format | Article |
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A</addtitle><date>1981-06-30</date><risdate>1981</risdate><volume>301</volume><issue>1462</issue><spage>687</spage><epage>691</epage><pages>687-691</pages><issn>0080-4614</issn><eissn>2054-0272</eissn><abstract>The study of y-ray lines of astrophysical origin has become more interesting with the introduction of cooled solid state detectors having a very good energy resolution, 1-2 keV at 100 keV, and ca. 2-3 keV around 1 MeV. Some of the single crystal spectrometers currently in use in y-ray astronomy are capable of detecting lines with intensities 3 x 10-3 ph cm-2 s-1 when used on balloon experiments. This is close to the y-ray intensities predicted from some celestial y-ray sources. Knowing the y-ray background precisely and with a reasonable although lengthy observation time it should be possible to detect lines from candidate celestial sources, for example neutron stars, Seyfert galaxies or the galactic centre.</abstract><cop>London</cop><pub>The Royal Society</pub><doi>10.1098/rsta.1981.0152</doi></addata></record> |
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| ispartof | Philosophical transactions of the Royal Society of London. Series A: Mathematical and physical sciences, 1981-06, Vol.301 (1462), p.687-691 |
| issn | 0080-4614 2054-0272 |
| language | eng |
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| source | Jstor Complete Legacy; JSTOR Mathematics & Statistics |
| title | Gamma-ray astronomy - Gamma-ray line investigations with the Durham y-ray spectrometer |
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