An Explanation for the Undetection of Radio Pulsar in Supernova 1987A
Supernova 1987 A is a core collapse supernova in the Large Magellanic Cloud, inside which the product is most likely a neutron star. Despite the most sensitive available detection instruments from radio to γ-ray wavebands being exploited in the pass thirty years, there have not yet been any pulse si...
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| Published in | Chinese physics letters Vol. 34; no. 12; pp. 88 - 90 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
01.12.2017
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| Online Access | Get full text |
| ISSN | 0256-307X 1741-3540 |
| DOI | 10.1088/0256-307X/34/12/129702 |
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| Summary: | Supernova 1987 A is a core collapse supernova in the Large Magellanic Cloud, inside which the product is most likely a neutron star. Despite the most sensitive available detection instruments from radio to γ-ray wavebands being exploited in the pass thirty years, there have not yet been any pulse signals detected. By considering the density of the medium plasma in the remnant of 1987 A, we find that the plasma cut-off frequency is approximately7 GHz, a value higher than the conventional observational waveband of radio pulsars. As derived, with the expansion of the supernova remnant, the radio signal will be detected in 2073 A.D. at 3 GHz. |
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| Bibliography: | 11-1959/O4 Supernova 1987 A is a core collapse supernova in the Large Magellanic Cloud, inside which the product is most likely a neutron star. Despite the most sensitive available detection instruments from radio to γ-ray wavebands being exploited in the pass thirty years, there have not yet been any pulse signals detected. By considering the density of the medium plasma in the remnant of 1987 A, we find that the plasma cut-off frequency is approximately7 GHz, a value higher than the conventional observational waveband of radio pulsars. As derived, with the expansion of the supernova remnant, the radio signal will be detected in 2073 A.D. at 3 GHz. Shuang-Qiang Wang, Na Wang, De-Hua Wang, Lun-Hua Shang（ 1Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011 2 University of Chinese Academy of Sciences, Beijing 100049 3School of Physics and Electronic Science, Guizhou Normal University, Guiyang 550001） |
| ISSN: | 0256-307X 1741-3540 |
| DOI: | 10.1088/0256-307X/34/12/129702 |