Redshift measurement of Fermi Blazars for the Cherenkov Telescope Array

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00553139" target="_blank" >RIV/68378271:_____/17:00553139 - isvavai.cz</a>
Result on the web
<a href="https://aip.scitation.org/doi/pdf/10.1063/1.4968971" target="_blank" >https://aip.scitation.org/doi/pdf/10.1063/1.4968971</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.4968971" target="_blank" >10.1063/1.4968971</a>

Result language
angličtina
Original language name
Redshift measurement of Fermi Blazars for the Cherenkov Telescope Array
Original language description
Blazars are active galactic nuclei, and the most numerous High Energy (HE) and Very High Energy (VHE) gamma-ray emitters. Their optical emission is often dominated by non-thermal, and, in the case of BL Lacs, featureless continuum radiation. This makes the determination of their redshift extremely difficult. Indeed, as of today only about 50% of gamma-ray blazars have a measured spectroscopic redshift. The knowledge of redshift is fundamental because it allows the precise modeling of the VHE emission and also of its interaction with the extragalactic background light (EBL). The beginning of the Cherenkov Telescope Array (CTA) operations in the near future will allow the detection of several hundreds of new blazars. Using the Fermi catalogue of sources above 50 GeV (2FHL), we performed simulations which indicate that a significant fraction of the 2FHL blazars detectable by CTA will not have a measured redshift.nn
Czech name
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Czech description
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Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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