Active galaxies
The backbone of Metsähovi's observations are the long-term lightcurves of radio-bright active galaxies at high radio frequencies. Our 37 GHz light curves span four decades for many sources.
Skoggård radioobservatorium är det enda astronomiska radioobservatoriet i Finland. Skoggårds huvudinstrument är det 14-meter stora radioteleskopet som används dygnet runt, 365 dagar om året. Dess utsöndrade data används för att bland annat studera galaxer, solen och jordens rotation.
The research activities at Metsähovi are concentrated on radio observations done at millimetre waves and microwaves (2-150 GHz). The main areas are solar millimeter and microwave radiation, variable quasars and active galaxies, and very long baseline interferometry (VLBI).
The research in technology includes development of data acquisition, data processing, receivers and receiving methods. Metsähovi hosts researchers and students especially from the Department of Electronics and Nanoengineering and the .
The backbone of Metsähovi's observations are the long-term lightcurves of radio-bright active galaxies at high radio frequencies. Our 37 GHz light curves span four decades for many sources.
The Sun is the nearest star and thus a premium target for observations to understand how stars work.
Very Long Baseline Interferometry (VLBI) is a technique where radio telescopes all over the world are all observing the same source at the same time at the same frequency, thus operating as one gigantic virtual telescope.
The MCA interferometer is used to observe spectra from interstellar gas clouds.
Forskningsaktiviteterna vid Skoggård är koncentrerade vid radioobservationer som görs på millimetervågor och mikrovågor (2-150 GHz). Kärnområden är solmillimeter och mikrovågsstrålning, variabla kvasar, aktiva galaxer och ytterst lång baslinje interferometri (VLBI).
Forskningen i teknologin innehåller utveckling av dataerhållandet, databehandling samt utveckling av mottagar och mottagningsmetoder. Skoggård är värd för forskare och studeranden speciellt Institutionen för elektronik och nanoteknik och Finnish Centre for Astronomy with ESO.
The backbone of Metsähovi's observations are the long-term lightcurves of radio-bright active galaxies at high radio frequencies. Our 37 GHz light curves span four decades for many sources.
The Sun is the nearest star and thus a premium target for observations to understand how stars work.
Det finns flera instrument vid Skoggård som är lämpliga vid forskningen om universum med radiofrekvens. Dessutom är instrumenten lämpliga för användning och utveckling av radioteleskop samt dess mottagare. Skoggård innehar även extremt noggrana atomiska klockor och specialiserade datorer för interferometriska observationer. Lär dig mer om instrumenten vid Skoggård på engelska nedan.
Metsähovi operates multiple instruments for studying the universe in radio frequencies. In addition to operating and developing radio telescopes and their receivers, Metsähovi also runs extremely accurate atomic clocks and specialized computers for interferometric observations.
Specifications of the antenna
The essential feature of a radio astronomy receiver is the capability to detect very weak radio signals as sensitively as possible. In radio telescopes and antennas, the receiver is the central part, doing the actual data collecting.
The location of a radio observatory needs to be known precisely. The Metsähovi 14-metre radio telescope's coordinates are one of the most accurately known in Finland. In fact, the Finnish coordinates are partly based on measurement done in Metsähovi.
Metsähovivägen 114, 02540 Kylmälä