HESS detection of very high-energy gamma-ray emission from the quasar PKS 0736+017

Abdalla, H.; Adam, R.; Aharonian, F.; Benkhali, F. Ait; Anguner, E. O.; Arakawa, M.; Arcaro, C.; Armand, C.; Ashkar, H.; Backes, M.; Martins, V. Barbosa; Barnard, M.; Becherini, Yvonne; Berge, D.; Bernloehr, K.; Blackwell, R.; Bottcher, M.; Boisson, C.; Bolmont, J.; Bonnefoy, S.; Bregeon, J.; Breuhaus, M.; Brun, F.; Brun, P.; Bryan, M.; Buechele, M.; Bulik, T.; Bylund, Tomas; Capasso, M.; Caroff, S.; Carosi, A.; Casanova, S.; Cenuti, M.; Chand, T.; Chandra, S.; Chen, A.; Colafrancesco, S.; Curylo, M.; Davids, I. D.; Deil, C.; Devin, J.; deWilt, P.; Dirson, L.; Djannati-Atai, A.; Dmytriiev, A.; Donath, A.; Doroshenko, V; Drury, L. O ' C; Dyks, J.; Egberts, K.; Emery, G.; Ernenwein, J-P; Eschbach, S.; Feijen, K.; Fegan, S.; Fiasson, A.; Fontaine, G.; Funk, S.; Fuessling, M.; Gabici, S.; Gallant, Y. A.; Gate, F.; Giavitto, G.; Glawion, D.; Glicenstein, J. F.; Gottschall, D.; Grondin, M-H; Hahn, J.; Haupt, M.; Heinzelmann, G.; Henri, G.; Hermann, G.; Hinton, J. A.; Hofmann, W.; Hoischen, C.; Holch, T. L.; Holler, M.; Horns, D.; Huber, D.; Iwasaki, H.; Jamrozy, M.; Jankowsky, D.; Jankowsky, F.; Jardin-Blicq, A.; Jung-Richardt, I; Kastendieck, M. A.; Katarzynski, K.; Katsuragawa, M.; Katz, U.; Khangulyan, D.; Khelifi, B.; King, J.; Klepser, S.; Kluzniak, W.; Komin, Nu; Kosack, K.; Kostunin, D.; Kraus, M.; Lamanna, G.; Lau, J.; Lemiere, A.; Lemoine-Goumard, M.; Lenain, J-P; Leser, E.; Levy, C.; Lohse, T.; Lypova, I; Mackey, J.; Majumdar, J.; Malyshev, D.; Marandon, V; Marcowith, A.; Mares, A.; Mariaud, C.; Marti-Devesa, G.; Marx, R.; Maurin, G.; Meintjes, P. J.; Mitchell, A. M. W.; Moderski, R.; Mohamed, M.; Mohrmann, L.; Muller, J.; Moore, C.; Moulin, E.; Murach, T.; Nakashima, S.; de Naurois, M.; Ndiyavala, H.; Niederwanger, F.; Niemiec, J.; Oakes, L.; O'Brien, P.; Odaka, H.; Ohm, S.; Wilhelmi, E. de Ona; Ostrowski, M.; Oya, I; Panter, M.; Parsons, R. D.; Perennes, C.; Petrucci, P-O; Peyaud, B.; Piel, Q.; Pita, S.; Poireau, V; Noel, A. Priyana; Prokhorov, D. A.; Puehlhofer, G.; Punch, Michael; 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, V; Saito, S.; Sanchez, D. A.; Santangelo, A.; Sasaki, M.; Schlickeiser, R.; Schuessler, F.; Schulz, A.; Schutte, H.; Schwanke, U.; Schwemmer, S.; Seglar-Arroyo, M.; Senniappan, Mohanraj; Seyffert, A. S.; 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, A. M.; Terrier, R.; Tiziani, D.; Tluczykont, M.; Trichard, C.; Tsirou, M.; Tsuji, N.; Tuffs, R.; Uchiyama, Y.; van der Walt, D. J.; van Eldik, C.; van Rensburg, C.; van Soelen, B.; Vasileiadis, G.; Veh, J.; Venter, C.; Vincent, P.; Vink, J.; Voisin, F.; Voelk, H. J.; Vuillaume, T.; Wadiasingh, Z.; Wagner, S. J.; White, R.; Wierzcholska, A.; Yang, R.; Yoneda, H.; Zacharias, M.; Zanin, R.; Zdziarski, A. A.; Zech, A.; Ziegler, A.; Zorn, J.; Zywucka, N. N.; Smith, P. S.

lnu.sePublications

Simple search

Advanced search -
Research publications Advanced search -
Student theses Statistics

English Svenska Norsk

Change search

Cite ExportLink to record

Permanent link

https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-92321

Direct link

http://lnu.diva-portal.org/smash/record.jsf?pid=diva2:1395265

Cite

Citation style

apa
ieee
modern-language-association-8th-edition
vancouver
Other style

More styles

Language

de-DE
en-GB
en-US
fi-FI
nn-NO
nn-NB
sv-SE
Other locale

More languages

Output format

html
text
asciidoc
rtf

HESS detection of very high-energy gamma-ray emission from the quasar PKS 0736+017

Abdalla, H.

North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa..

Adam, R.

Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France..

Aharonian, F.

Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany.;Dublin Inst Adv Studies, 31 Fitzwilliam Pl, Dublin 2, Ireland.;RAU, High Energy Astrophys Lab, 123 Hovsep Emin St, Yerevan 0051, Armenia..

Benkhali, F. Ait

Max Planck Inst Kernphys, POB 103980, D-69029 Heidelberg, Germany..

Anguner, E. O.

Arakawa, M.

Arcaro, C.

Armand, C.

Ashkar, H.

Backes, M.

Martins, V. Barbosa

Barnard, M.

Becherini, Yvonne

Berge, D.

Bernloehr, K.

Blackwell, R.

Bottcher, M.

Boisson, C.

Bolmont, J.

Bonnefoy, S.

Bregeon, J.

Breuhaus, M.

Brun, F.

Brun, P.

Bryan, M.

Buechele, M.

Bulik, T.

Bylund, Tomas

Capasso, M.

Caroff, S.

Carosi, A.

Casanova, S.

Cenuti, M.

Chand, T.

Chandra, S.

Chen, A.

Colafrancesco, S.

Curylo, M.

Davids, I. D.

Deil, C.

Devin, J.

deWilt, P.

Dirson, L.

Djannati-Atai, A.

Dmytriiev, A.

Donath, A.

Doroshenko, V

Drury, L. O ' C

Dyks, J.

Egberts, K.

Emery, G.

Ernenwein, J-P

Eschbach, S.

Feijen, K.

Fegan, S.

Fiasson, A.

Fontaine, G.

Funk, S.

Fuessling, M.

Gabici, S.

Gallant, Y. A.

Gate, F.

Giavitto, G.

Glawion, D.

Glicenstein, J. F.

Gottschall, D.

Grondin, M-H

Hahn, J.

Haupt, M.

Heinzelmann, G.

Henri, G.

Hermann, G.

Hinton, J. A.

Hofmann, W.

Hoischen, C.

Holch, T. L.

Holler, M.

Horns, D.

Huber, D.

Iwasaki, H.

Jamrozy, M.

Jankowsky, D.

Jankowsky, F.

Jardin-Blicq, A.

Jung-Richardt, I

Kastendieck, M. A.

Katarzynski, K.

Katsuragawa, M.

Katz, U.

Khangulyan, D.

Khelifi, B.

King, J.

Klepser, S.

Kluzniak, W.

Komin, Nu

Kosack, K.

Kostunin, D.

Kraus, M.

Lamanna, G.

Lau, J.

Lemiere, A.

Lemoine-Goumard, M.

Lenain, J-P

Leser, E.

Levy, C.

Lohse, T.

Lypova, I

Mackey, J.

Majumdar, J.

Malyshev, D.

Marandon, V

Marcowith, A.

Mares, A.

Mariaud, C.

Marti-Devesa, G.

Marx, R.

Maurin, G.

Meintjes, P. J.

Mitchell, A. M. W.

Moderski, R.

Mohamed, M.

Mohrmann, L.

Muller, J.

Moore, C.

Moulin, E.

Murach, T.

Nakashima, S.

de Naurois, M.

Ndiyavala, H.

Niederwanger, F.

Niemiec, J.

Oakes, L.

O'Brien, P.

Odaka, H.

Ohm, S.

Wilhelmi, E. de Ona

Ostrowski, M.

Oya, I

Panter, M.

Parsons, R. D.

Perennes, C.

Petrucci, P-O

Peyaud, B.

Piel, Q.

Pita, S.

Poireau, V

Noel, A. Priyana

Prokhorov, D. A.

Puehlhofer, G.

Punch, Michael

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, V

Saito, S.

Sanchez, D. A.

Santangelo, A.

Sasaki, M.

Schlickeiser, R.

Schuessler, F.

Schulz, A.

Schutte, H.

Schwanke, U.

Schwemmer, S.

Seglar-Arroyo, M.

Senniappan, Mohanraj

Seyffert, A. S.

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, A. M.

Terrier, R.

Tiziani, D.

Tluczykont, M.

Trichard, C.

Tsirou, M.

Tsuji, N.

Tuffs, R.

Uchiyama, Y.

van der Walt, D. J.

van Eldik, C.

van Rensburg, C.

van Soelen, B.

Vasileiadis, G.

Veh, J.

Venter, C.

Vincent, P.

Vink, J.

Voisin, F.

Voelk, H. J.

Vuillaume, T.

Wadiasingh, Z.

Wagner, S. J.

White, R.

Wierzcholska, A.

Yang, R.

Yoneda, H.

Zacharias, M.

Zanin, R.

Zdziarski, A. A.

Zech, A.

Ziegler, A.

Zorn, J.

Zywucka, N. N.

Smith, P. S.

Show others and affiliations

2020 (English)In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 633, p. 1-11, article id A162Article in journal (Refereed) Published

Abstract [en]

Context. Flat-spectrum radio-quasars (FSRQs) are rarely detected at very high energies (E& x2004;>=& x2004;100 GeV) due to their low-frequency-peaked spectral energy distributions. At present, only six FSRQs are known to emit very high-energy (VHE) photons, representing only 7% of the VHE extragalactic catalog, which is largely dominated by high-frequency-peaked BL Lacertae objects. Aims. Following the detection of MeV-GeV gamma-ray flaring activity from the FSRQ PKS 0736+017 (z& x2004;=& x2004;0.189) with Fermi-LAT, the H.E.S.S. array of Cherenkov telescopes triggered target-of-opportunity (ToO) observations on February 18, 2015, with the goal of studying the gamma-ray emission in the VHE band. Methods. H.E.S.S. ToO observations were carried out during the nights of February 18, 19, 21, and 24, 2015. Together with Fermi-LAT, the multi-wavelength coverage of the flare includes Swift observations in soft X-ray and optical-UV bands, and optical monitoring (photometry and spectro-polarimetry) by the Steward Observatory, and the ATOM, the KAIT, and the ASAS-SN telescopes. Results. VHE emission from PKS 0736+017 was detected with H.E.S.S. only during the night of February 19, 2015. Fermi-LAT data indicate the presence of a gamma-ray flare, peaking at the time of the H.E.S.S. detection, with a flux doubling timescale of around six hours. The gamma-ray flare was accompanied by at least a 1 mag brightening of the non-thermal optical continuum. No simultaneous observations at longer wavelengths are available for the night of the H.E.S.S. detection. The gamma-ray observations with H.E.S.S. and Fermi-LAT are used to put constraints on the location of the gamma-ray emitting region during the flare: it is constrained to be just outside the radius of the broad-line region r(BLR) with a bulk Lorentz factor Gamma& x2004;similar or equal to& x2004;20, or at the level of the radius of the dusty torus r(torus) with Gamma& x2004;similar or equal to& x2004;60. Conclusions. PKS 0736+017 is the seventh FSRQ known to emit VHE photons, and at z& x2004;=& x2004;0.189 is the nearest so far. The location of the gamma-ray emitting region during the flare can be tightly constrained thanks to opacity, variability, and collimation arguments.

Place, publisher, year, edition, pages

EDP Sciences, 2020. Vol. 633, p. 1-11, article id A162

Keywords [en]

gamma rays, general, astroparticle physics, relativistic processes, quasars, individual, PKS 0736+017

National Category

Astronomy, Astrophysics and Cosmology

Research subject

Physics, Astroparticle Physics

Identifiers

URN: urn:nbn:se:lnu:diva-92321DOI: 10.1051/0004-6361/201935906ISI: 000509938700005Scopus ID: 2-s2.0-85094319353OAI: oai:DiVA.org:lnu-92321DiVA, id: diva2:1395265

Available from: 2020-02-21 Created: 2020-02-21 Last updated: 2023-01-30Bibliographically approved

Open Access in DiVA

No full text in DiVA

Authority records

Becherini, Yvonne Bylund, Tomas Punch, Michael Senniappan, Mohanraj

Search in DiVA

doi

urn-nbn

Total: 160 hits

Cite ExportLink to record

Permanent link

https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-92321

Direct link

http://lnu.diva-portal.org/smash/record.jsf?pid=diva2:1395265

Cite

Citation style

apa
ieee
modern-language-association-8th-edition
vancouver
Other style

More styles

Language

de-DE
en-GB
en-US
fi-FI
nn-NO
nn-NB
sv-SE
Other locale

More languages

Output format

html
text
asciidoc
rtf

v. 2.44.0

WCAG

DiVA support

Linnaeus University Library

Linnaeus University Press

Publish/Register