The microarcsecond quasar J1819+3845
| Autor: | Dennett-Thorpe, J, de Bruyn, AG, Schilizzi, RT, Vogel, SN, Paresce, F, Elvis, MS |
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| Přispěvatelé: | Kapteyn Astronomical Institute |
| Jazyk: | angličtina |
| Rok vydání: | 2001 |
| Předmět: | |
| Zdroj: | GALAXIES AND THEIR CONSTITUENTS AT THE HIGHEST ANGULAR RESOLUTIONS, 88-89 STARTPAGE=88;ENDPAGE=89;TITLE=GALAXIES AND THEIR CONSTITUENTS AT THE HIGHEST ANGULAR RESOLUTIONS |
| Popis: | We present new WSRT observations of the micro-arcsecond quasar J1819+3845. All short term variations are attributed to interstellar scintillation of a source which is at most 30 micro-arcseconds in diameter. The timescale of the modulations changes over the year, which we interpret as due to a peculiar velocity of the scattering medium. The scintillation behaviour can be used to determine sub-structure in the source. |
| Databáze: | OpenAIRE |
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