Simultaneous observations of the blazar PKS 2155-304 from ultra-violet to TeV energies

Abdalla H, Adam R, Mitchell A, Aharonian F, Benkhali FA, Anguner EO, Arakawa M, Arcaro C, Armand C, Ashkar H, Backes M, Martins VB, Barnard M, Becherini Y, Berge D, Bernlohr K, Blackwell R, Bottcher M, Boisson C, Bolmont J, Bonnefoy S, Bregeon J, Breuhaus M, Brun F, Brun P, Bryan M, Büchele M, Bulik T, Bylund T, Caroff S, Carosi A, Casanova S, Cerruti M, Chand T, Chandra S, Chen A, Colafrancesco S, Curylo M, Davids ID, Deil C, Devin J, Dewilt P, Dirson L, Djannati-Atai A, Dmytriiev A, Donath A, Doroshenko , Dyks J, Egberts K, Emery G, Ernenwein JP, Eschbach S, Feijen K, Fegan S, Fiasson A, Fontaine G, Funk S, Fuessling M, Gabici S, Gallant YA, Gate F, Giavitto G, Giunti L, Glawion D, Glicenstein JF, Gottschall D, Grondin MH, Hahn J, Haupt M, Heinzelmann G, Henri G, Hermann G, Hinton JA, Hofmann W, Hoischen C, Holch TL, Holler M, Horns D, Huber D, Iwasaki H, Jamrozy M, Jankowsky D, Jankowsky F, Jardin-Blicq A, Jung-Richardt , Kastendieck MA, Katsuragawa M, Katarzyński K, Katz U, Khangulyan D, Khelifi B, King J, Klepser S, Kluzniak W, Komin N, Kosack K, Kostunin D, Kreter M, Lamanna G, Lemiere A, Lemoine-Goumard M, Lenain JP, Leser E, Levy C, Lohse T, Lypova , Mackey J, Majumdar J, Malyshev D, Marandon , Marcowith A, Mares A, Mariaud C, Martí-Devesa G, Marx R, Maurin G, Meintjes PJ, Mitchell AMW, Moderski R, Mohamed M, Mohrmann L, Moore C, Moulin E, Muller J, Murach T, Nakashima S, De Naurois M, Ndiyavala H, Niederwanger F, Niemiec J, Oakes L, O'Brien P, Odaka H, Ohm S, Wilhelmi EDO, Ostrowski M, Oya , Panter M, Parsons RD, Perennes C, Petrucci PO, Peyaud B, Piel Q, Pita S, Poireau , Noel AP, Prokhorov DA, Prokoph H, Pühlhofer G, Punch M, Quirrenbach A, Raab S, Rauth R, Reimer A, Reimer O, Remy Q, Renaud M, Rieger F, Rinchiuso L, Romoli C, Rowell G, Rudak B, Ruiz-Velasco E, Sahakian , Sailer S, Saito S, Sanchez DA, Santangelo A, Sasaki M, Schlickeiser R, Schüssler F, Schulz A, Schutte HM, Schwanke U, Schwemmer S, Seglar-Arroyo M, Senniappan M, Seyffert AS, Shafi N, Shiningayamwe K, Simoni R, Sinha A, Sol H, Specovius A, Spir-Jacob M, Stawarz L, Steenkamp R, Stegmann C, Steppa C, Takahashi T, Tavernier T, Taylor AM, Terrier R, Tiziani D, Tluczykont M, Trichard C, Tsirou M, Tsuji N, Tuffs R, Uchiyama Y, Van Der Walt DJ, van Eldik C, Van Rensburg C, Van Soelen B, Vasileiadis G, Veh J, Venter C, Vincent P, Vink J, Voelk HJ, Vuillaume T, Wadiasingh Z, Wagner SJ, White R, Wierzcholska A, Yang R, Yoneda H, Zacharias M, Zanin R, Zdziarski AA, Zech A, Zorn J, Żywucka N, Madejski GM, Nalewajko K, Madsen KK, Chiang J, Balokovic M, Paneque D, Furniss AK, Hayashida M, Urry CM, Ajello M, Harrison FA, Giebels B, Stern D, Forster K, Giommi P, Perri M, Puccetti S, Zoglauer A, Tagliaferri G (2020)


Publication Type: Journal article

Publication year: 2020

Journal

Book Volume: 639

DOI: 10.1051/0004-6361/201936900

Abstract

Here we report the results of the first ever contemporaneous multi-wavelength observation campaign on the BL Lac object PKS 2155-304 involving Swift, NuSTAR, Fermi-LAT, and H.E.S.S. The use of these instruments allows us to cover a broad energy range, which is important for disentangling the different radiative mechanisms. The source, observed from June 2013 to October 2013, was found in a low flux state with respect to previous observations but exhibited highly significant flux variability in the X-rays. The high-energy end of the synchrotron spectrum can be traced up to 40 keV without significant contamination by high-energy emission. A one-zone synchrotron self-Compton model was used to reproduce the broadband flux of the source for all the observations presented here but failed for previous observations made in April 2013. A lepto-hadronic solution was then explored to explain these earlier observational results.

Authors with CRIS profile

How to cite

APA:

Abdalla, H., Adam, R., Mitchell, A., Aharonian, F., Benkhali, F.A., Anguner, E.O.,... Tagliaferri, G. (2020). Simultaneous observations of the blazar PKS 2155-304 from ultra-violet to TeV energies. Astronomy & Astrophysics, 639. https://doi.org/10.1051/0004-6361/201936900

MLA:

Abdalla, H., et al. "Simultaneous observations of the blazar PKS 2155-304 from ultra-violet to TeV energies." Astronomy & Astrophysics 639 (2020).

BibTeX: Download