| Autor: |
Mosoni, L., Frey, S., Gurvits, L.I., Garrett, M.A., Garrington, S.T., Tsvetanov, Z. |
| Jazyk: |
angličtina |
| Rok vydání: |
2005 |
| Předmět: |
|
| Zdroj: |
Baltic Astronomy, ISSN 1392-0049, 2005, Vol. 14, No. 3, p. 343-346 |
| Popis: |
Until recently, VLBI surveys of extragalactic radio sources were limited to total flux densities of ˜100 mJy. We present early results of pilot observations of the Deep Extragalactic VLBI-Optical Survey aimed at improving this limit by at least an order of magnitude. Based on our pilot observations we estimate that a sample of ˜104 faint compact extragalactic sources can now be surveyed on milliarcsecond scales at cm wavelengths. A large fraction of the sample will be optically identified by the Sloan Digital Sky Survey (SDSS). There will be a number of possibilities to use such a large sample, including the study of the cosmological evolution of the population of mJy-level extragalactic radio sources, cosmological tests and astrometric applications. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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