Monitoring the Extragalactic High Energy Sky
Blazars are jetted active galactic nuclei with a jet pointing close to the line of sight, hence enhancing their intrinsic luminosity and variability. Monitoring these sources is essential in order to catch them flaring and promptly organize follow-up multi-wavelength observations, which are key to p...
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MDPI AG
2019-01-01
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| Series: | Galaxies |
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| Online Access: | http://www.mdpi.com/2075-4434/7/1/9 |
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doaj-90812e1d15e449318a023309ab05419c2020-11-25T00:05:31ZengMDPI AGGalaxies2075-44342019-01-0171910.3390/galaxies7010009galaxies7010009Monitoring the Extragalactic High Energy SkyJean-Philippe Lenain0Sorbonne Université, Université Paris Diderot, Sorbonne Paris Cité, CNRS/IN2P3, Laboratoire de Physique Nucléaire et de Hautes Energies, LPNHE, 4 Place Jussieu, F-75252 Paris, FranceBlazars are jetted active galactic nuclei with a jet pointing close to the line of sight, hence enhancing their intrinsic luminosity and variability. Monitoring these sources is essential in order to catch them flaring and promptly organize follow-up multi-wavelength observations, which are key to providing rich data sets used to derive e.g., the emission mechanisms at work, and the size and location of the flaring zone. In this context, the Fermi-LAT has proven to be an invaluable instrument, whose data are used to trigger many follow-up observations at high and very high energies. A few examples are illustrated here, as well as a description of different data products and pipelines, with a focus given on FLaapLUC, a tool in use within the H.E.S.S. collaboration.http://www.mdpi.com/2075-4434/7/1/9active galactic nucleiblazarsgamma rayshigh energymonitoring |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Jean-Philippe Lenain |
| spellingShingle |
Jean-Philippe Lenain Monitoring the Extragalactic High Energy Sky Galaxies active galactic nuclei blazars gamma rays high energy monitoring |
| author_facet |
Jean-Philippe Lenain |
| author_sort |
Jean-Philippe Lenain |
| title |
Monitoring the Extragalactic High Energy Sky |
| title_short |
Monitoring the Extragalactic High Energy Sky |
| title_full |
Monitoring the Extragalactic High Energy Sky |
| title_fullStr |
Monitoring the Extragalactic High Energy Sky |
| title_full_unstemmed |
Monitoring the Extragalactic High Energy Sky |
| title_sort |
monitoring the extragalactic high energy sky |
| publisher |
MDPI AG |
| series |
Galaxies |
| issn |
2075-4434 |
| publishDate |
2019-01-01 |
| description |
Blazars are jetted active galactic nuclei with a jet pointing close to the line of sight, hence enhancing their intrinsic luminosity and variability. Monitoring these sources is essential in order to catch them flaring and promptly organize follow-up multi-wavelength observations, which are key to providing rich data sets used to derive e.g., the emission mechanisms at work, and the size and location of the flaring zone. In this context, the Fermi-LAT has proven to be an invaluable instrument, whose data are used to trigger many follow-up observations at high and very high energies. A few examples are illustrated here, as well as a description of different data products and pipelines, with a focus given on FLaapLUC, a tool in use within the H.E.S.S. collaboration. |
| topic |
active galactic nuclei blazars gamma rays high energy monitoring |
| url |
http://www.mdpi.com/2075-4434/7/1/9 |
| work_keys_str_mv |
AT jeanphilippelenain monitoringtheextragalactichighenergysky |
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