Monitoring the Extragalactic High Energy Sky

Abstract

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.

Monitoring the Non-thermal Universe Workshop, Cochem, September 2018. Conference Proceedings published in Galaxies

References in corpus (12)

• Multi-messenger Observations of a Binary Neutron Star Merger
• Active Galactic Nuclei: what's in a name?
• Second ROSAT all-sky survey (2RXS) source catalogue
• CRATES: An All-Sky Survey of Flat-Spectrum Radio Sources
• The first XMM-Newton slew survey catalogue: XMMSL1
• The blazar sequence: a new perspective
• Blazar sequence - an artefact of Doppler boosting
• The Blazar Sequence: Validity and Predictions
• A survey of polarization in the JVAS/CLASS flat-spectrum radio source surveys: I. The data and catalogue production
• Testing the blazar spectral sequence: X-ray selected blazars
• Luminous and high-frequency peaked blazars: the origin of the $\gamma$-ray emission from PKS 1424+240
• Validation of a new background discrimination method for the TACTIC TeV $\gamma$-ray telescope with Markarian 421 data

Cited by in corpus (1)

• The Long-Lasting Activity in the Flat Spectrum Radio Quasar (FSRQ) CTA~102