| dc.contributor.author | Wierzcholska, Alicja | |
| dc.contributor.author | Zacharias, Michael | |
| dc.contributor.author | Jankowsky, Felix | |
| dc.contributor.author | Wagner, Stefan | |
| dc.date.accessioned | 2019-03-05T12:50:15Z | |
| dc.date.available | 2019-03-05T12:50:15Z | |
| dc.date.issued | 2019 | |
| dc.identifier.citation | Wierzcholska, A. et al. 2019. H.E.S.S. monitoring of PKS 2155-304 in 2015 and 2016. Galaxies, 7(1): Article no 21. [https://doi.org/10.3390/galaxies7010021] | en_US |
| dc.identifier.issn | 2075-4434 | |
| dc.identifier.uri | http://hdl.handle.net/10394/31893 | |
| dc.identifier.uri | https://www.mdpi.com/2075-4434/7/1/21/pdf | |
| dc.identifier.uri | https://doi.org/10.3390/galaxies7010021 | |
| dc.description.abstract | PKS 2155-304 is one of the brightest blazar located in Southern Hemisphere, monitored
with H.E.S.S. since the first light of the experiment. Here we report multiwavelength monitoring
observations collected during the period of 2015–2016 with H.E.S.S., Fermi-LAT, Swift-XRT,
Swift-UVOT, and ATOM. Two years of multiwavelength data with very good temporal coverage
allowed to characterize broadband emission observed from the region of PKS 2155-304 and study
potential multifrequency correlations. During the period of monitoring, PKS 2155-304 revealed
complex multiwavelength variability with two outbursts characterized by completely different
multiband properties. The 2015 activity of the blazar is characterized by a flare observed at all
wavelengths studied. The broadband emission observed during the outburst is well correlated
without any time lags. Contrary to 2015, in 2016, only orphan outburst in the optical and
ultraviolet wavelengths was observed. Such an orphan activity is reported for the first time for
the blazar PKS 2155-304 | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | MDPI | en_US |
| dc.subject | Active galactic nuclei | en_US |
| dc.subject | Blazar variability | en_US |
| dc.subject | Multi-wavelength | en_US |
| dc.title | H.E.S.S. monitoring of PKS 2155-304 in 2015 and 2016 | en_US |
| dc.type | Article | en_US |
| dc.contributor.researchID | 29092086 - Zacharias, Michael | |
