| Autor: |
King, Ashley L., Miller, Jon M., Bietenholz, Michael, Gültekin, Kayhan, Reynolds, Mark T., Mioduszewski, Amy, Rupen, Michael, Bartel, Norbert |
| Rok vydání: |
2016 |
| Předmět: |
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| Zdroj: |
Nature Physics 12 (2016) 772-777 |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1038/nphys3724 |
| Popis: |
Observational constraints of relativistic jets from black holes has largely come from the most powerful and extended jets\cite{Jorstad05,Asada14}, leaving the nature of the low luminosity jets a mystery\cite{Falcke04}. M81* is one of the nearest low-luminosity jets, which underwent an extremely large radio flare in 2011, allowing us to study compact core emission with unprecedented sensitivity and linear resolution. Utilizing a multi-wavelength campaign, we were able to track the flare as it re-brightened and became optically thick. Simultaneous X-ray observations indicated the radio re-brightening was preceded by a low energy X-ray flare at least $t_{\rm delay}>12\ {\rm days}$ prior. Associating the time delay between the two bands as the cooling time in a synchrotron flare\cite{Urry97,Bai03}, we find the magnetic field strength was $1.9Comment: 38 pages, 7 figures, published in Nature Physics |
| Databáze: |
arXiv |
| Externí odkaz: |
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