A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Long-term radio variability of AGN: flare characteristics
Tekijät: Hovatta T, Nieppola E, Tornikoski M, Valtaoja E, Aller MF, Aller HD
Kustantaja: EDP SCIENCES S A
Julkaisuvuosi: 2008
Tietokannassa oleva lehden nimi: ASTRONOMY & ASTROPHYSICS
Lehden akronyymi: ASTRON ASTROPHYS
Vuosikerta: 485
Numero: 1
Aloitussivu: 51
Lopetussivu: 61
Sivujen määrä: 11
ISSN: 0004-6361
DOI: https://doi.org/10.1051/0004-6361:200809806
Tiivistelmä
Results. The observations seem to adhere well to the shock model, but there is still large scatter in the data. Especially the time delays between different frequency bands are difficult to study due to the incomplete sampling of the higher frequencies. The average duration of the flares is 2.5 years at 22 and 37 GHz, which shows that long-term monitoring is essential for understanding the typical behaviour in these sources. It also seems that the energy release in a flare is independent of the duration of the flare.
Results. The observations seem to adhere well to the shock model, but there is still large scatter in the data. Especially the time delays between different frequency bands are difficult to study due to the incomplete sampling of the higher frequencies. The average duration of the flares is 2.5 years at 22 and 37 GHz, which shows that long-term monitoring is essential for understanding the typical behaviour in these sources. It also seems that the energy release in a flare is independent of the duration of the flare.
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