Related papers: H.E.S.S. follow-up of BBH merger events

H.E.S.S. follow-up observations of Binary Black Hole Coalescence events during the second and third Gravitational Waves observing runs of Advanced LIGO and Advanced Virgo

We report on the observations of four well-localized binary black hole (BBH) mergers by the High Energy Stereoscopic System (H.E.S.S.) during the second and third observing runs of Advanced LIGO and Advanced Virgo, O2 and O3. H.E.S.S. can…

High Energy Astrophysical Phenomena · Physics 2021-12-16 H. E. S. S. collaboration , : , H. Abdalla , F. Aharonian , F. Ait Benkhali , E. O. Angüner , H. Ashkar , M. Backes , V. Baghmanyan , V. Barbosa Martins , R. Batzofin , Y. Becherini , D. Berge , K. Bernlöhr , B. Bi , M. Böttcher , C. Boisson , J. Bolmont , M. de Bony de Lavergne , R. Brose , F. Brun , T. Bulik , T. Bylund , F. Cangemi , S. Caroff , S. Casanova , T. Chand , A. Chen , G. Cotter , J. Damascene Mbarubucyeye , J. Devin , A. Djannati-AtaÏ , K. Egberts , J. -P. Ernenwein , S. Fegan , A. Fiasson , G. Fichet de Clairfontaine , G. Fontaine , S. Funk , S. Gabici , G. Giavitto , L. Giunti , D. Glawion , J. F. Glicenstein , M. -H. Grondin , J. A. Hinton , M. Hörbe , W. Hofmann , T. L. Holch , M. Holler , Zhiqiu Huang , D. Huber , M. Jamrozy , F. Jankowsky , I. Jung-Richardt , E. Kasai , K. Katarzyński , U. Katz , B. Khélifi , Nu. Komin , R. Konno , K. Kosack , D. Kostunin , A. Kundu , G. Lamanna , S. Le Stum , A. Lemière , M. Lemoine-Goumard , J. -P. Lenain , F. Leuschner , T. Lohse , A. Luashvili , I. Lypova , J. Mackey , J. Majumdar , D. Malyshev , V. Marandon , P. Marchegiani , G. Martí-Devesa , R. Marx , G. Maurin , P. J. Meintjes , A. Mitchell , L. Mohrmann , A. Montanari , E. Moulin , J. Muller , T. Murach , M. de Naurois , A. Nayerhoda , J. Niemiec , A. Priyana Noel , P. O'Brien , S. Ohm , L. Olivera-Nieto , E. de Ona Wilhelmi , M. Ostrowski , M. Panter , R. D. Parsons , G. Peron , V. Poireau , D. A. Prokhorov , H. Prokoph , G. Pühlhofer , M. Punch , A. Quirrenbach , P. Reichherzer , M. Renaud , F. Rieger , G. Rowell , B. Rudak , H. Rueda Ricarte , E. Ruiz Velasco , V. Sahakian , S. Sailer , H. Salzmann , D. A. Sanchez , A. Santangelo , M. Sasaki , F. Schüssler , H. M. Schutte , U. Schwanke , M. Senniappan , J. N. S. Shapopi , A. Sinha , H. Sol , A. Specovius , S. Spencer , L. Stawarz , S. Steinmassl , C. Steppa , L. Sun , T. Takahashi , T. Tanaka , R. Terrier , C. Thorpe-Morgan , M. Tsirou , N. Tsuji , Y. Uchiyama , C. van Eldik , J. Veh , J. Vink , S. J. Wagner , F. Werner , R. White , A. Wierzcholska , Yu Wun Wong , M. Zacharias , D. Zargaryan , A. A. Zdziarski , A. Zech , S. J. Zhu , S. Zouari , N. Zywucka

Probing VHE gamma-ray emission from GW events with H.E.S.S

Gravitational wave (GW) events, particularly those connected to the merger of compact objects such as neutron stars, are believed to be the primary source of short gamma-ray bursts. To explore the very high energy (VHE) component of the…

High Energy Astrophysical Phenomena · Physics 2023-09-08 Halim Ashkar , Mathieu de Bony de Lavergne , Francois Brun , Stephen Fegan , Ruslan Konno , Stefan Ohm , Heike Prokoph , Fabian Schüssler , Sylvia J Zhu

H.E.S.S. observations of very-high-energy emission from 1RXS J023832.6-311658

Observations of the HBL blazar 1RXS J023832.6-311658 were made in 2013, 2015 and 2016 with the High Energy Stereoscopic System (H.E.S.S.). An excess of very high energy (VHE: > 100 GeV) gamma rays is clearly observed. The spectral energy…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Florian Gaté

Observations of Binary Systems with the H.E.S.S. Telescopes

Observations of binary systems obtained recently with the High Energy Stereoscopic System (H.E.S.S) of Cherenkov telescopes are reported. The outcomes of a detailed observation campaign on PSR B1259-63 during its periastron passage in 2014…

High Energy Astrophysical Phenomena · Physics 2019-08-14 P. Bordas , G. Dubus , P. Eger , J. -P. Ernenwein , H. Laffon , C. Mariaud , T. Murach , M. de Naurois , C. Romoli , F. Schüssler , R. Zanin

H.E.S.S. follow-up observations of GRB221009A

GRB221009A is the brightest gamma-ray burst ever detected. To probe the very-high-energy (VHE, $>$\!100 GeV) emission, the High Energy Stereoscopic System (H.E.S.S.) began observations 53 hours after the triggering event, when the…

High Energy Astrophysical Phenomena · Physics 2023-04-12 H. E. S. S. Collaboration , : , F. Aharonian , F. Ait Benkhali , J. Aschersleben , H. Ashkar , M. Backes , A. Baktash , V. Barbosa Martins , R. Batzofin , Y. Becherini , D. Berge , K. Bernlöhr , B. Bi , M. Böttcher , C. Boisson , J. Bolmont , M. de Bony de Lavergne , J. Borowska , M. Bouyahiaoui , F. Bradascio , M. Breuhaus , R. Brose , F. Brun , B. Bruno , T. Bulik , C. Burger-Scheidlin , S. Caroff , S. Casanova , J. Celic , M. Cerruti , T. Chand , S. Chandra , A. Chen , J. Chibueze , O. Chibueze , G. Cotter , S. Dai , J. Damascene Mbarubucyeye , J. Devin , A. Djannati-Ataï , A. Dmytriiev , V. Doroshenko , K. Egberts , S. Einecke , J. -P. Ernenwein , S. Fegan , G. Fichet de Clairfontaine , M. Filipovic , G. Fontaine , M. Füßling , S. Funk , S. Gabici , S. Ghafourizadeh , G. Giavitto , D. Glawion , J. F. Glicenstein , P. Goswami , G. Grolleron , M. -H. Grondin J. A. Hinton , T. L. Holch , M. Holler , D. Horns , Zhiqiu Huang , M. Jamrozy , F. Jankowsky , V. Joshi , I. Jung-Richardt , E. Kasai , K. Katarzyński , R. Khatoon , B. Khélifi , W. Kluźniak , Nu. Komin , R. Konno , K. Kosack , D. Kostunin , R. G. Lang , S. Le Stum , F. Leitl , A. Lemière , M. Lemoine-Goumard , J. P. Lenain , F. Leuschner , T. Lohse , I. Lypova , J. Mackey , D. Malyshev , D. Malyshev , V. Marandon , P. Marchegiani , A. Marcowith , G. Martí-Devesa , R. Marx , M. Meyer , A. Mitchell , L. Mohrmann , A. Montanari , E. Moulin , T. Murach , K. Nakashima , M. de Naurois , J. Niemiec , A. Priyana Noel , P. O'Brien , S. Ohm , L. Olivera-Nieto , E. de Ona Wilhelmi , M. Ostrowski , S. Panny , M. Panter , R. D. Parsons , G. Peron , D. A. Prokhorov , H. Prokoph , G. Pühlhofer , M. Punch , A. Quirrenbach , P. Reichherzer , A. Reimer , O. Reimer , H. Ren , M. Renaud , B. Reville , F. Rieger , G. Rowell , B. Rudak , E. Ruiz-Velasco , V. Sahakian , H. Salzmann , A. Santangelo , M. Sasaki , J. Schäfer , F. Schüssler , H. M. Schutte , U. Schwanke , J. N. S. Shapopi , A. Specovius , S. Spencer , Ł. Stawarz , R. Steenkamp , S. Steinmassl , C. Steppa , I. Sushch , H. Suzuki , T. Takahashi , T. Tanaka , R. Terrier , N. Tsuji , Y. Uchiyama , M. Vecchi , C. Venter , J. Vink , S. J. Wagner , R. White , A. Wierzcholska , Yu Wun Wong , M. Zacharias , D. Zargaryan , A. A. Zdziarski , A. Zech , S. J. Zhu , N. Żywucka

Fifteen years of Gamma-Ray Burst observations at Very High Energies with H.E.S.S

We present results from the High Energy Stereoscopic System (H.E.S.S.) follow-up observations of Gamma-ray Bursts (GRBs) between 2004 and 2019. We are focusing on non-detections and providing the most extensive set of very-high-energy (VHE,…

High Energy Astrophysical Phenomena · Physics 2025-09-22 E. Ruiz-Velasco , C. Arcaro , M. de Bony de Lavergne , Z. Huang , D. Sanchez , M. Senniappan , S. Wagner , S. Zhu , the H. E. S. S. Collaboration

GECKO Optical Follow-up Observation of Three Binary Black Hole Merger Events: GW190408_181802, GW190412, and GW190503_185404

We present optical follow-up observation results of three binary black hole merger (BBH) events, GW190408_181802, GW190412, and GW190503_185404, which were detected by the Advanced LIGO and Virgo gravitational wave (GW) detectors.…

High Energy Astrophysical Phenomena · Physics 2021-08-04 Joonho Kim , Myungshin Im , Gregory S. H. Paek , Chung-Uk Lee , Seung-Lee Kim , Seo-Won Chang , Changsu Choi , Sungyong Hwang , Wonseok Kang , Sophia Kim , Taewoo Kim , Hyung Mok Lee , Gu Lim , Jinguk Seo , Hyun-Il Sun

Results from H.E.S.S. Observations of Relativistic Sources

The High Energy Stereoscopic System (H.E.S.S.) is a southern hemisphere array of four Imaging Atmospheric Cherenkov Telescopes observing the sky in the very high energy gamma-ray range (E $>$ 100 GeV). VHE observations are an invaluable…

High Energy Astrophysical Phenomena · Physics 2010-06-25 U. Barres de Almeida

The H.E.S.S. Gravitational Wave Rapid Follow-up Program

Gravitational Wave (GW) events are physical processes that significantly perturbate space-time, e.g. compact binary coalescenses, causing the production of GWs. The detection of GWs by a worldwide network of advanced interferometers offer…

High Energy Astrophysical Phenomena · Physics 2021-03-19 Halim Ashkar , Francois Brun , Matthias Füßling , Clemens Hoischen , Stefan Ohm , Heike Prokoph , Patrick Reichherzer , Fabian Schüssler , Monica Seglar-Arroyo

A Search for Optical Emission from Binary-Black-Hole Merger GW170814 with the Dark Energy Camera

Binary black hole (BBH) mergers found by the LIGO and Virgo detectors are of immense scientific interest to the astrophysics community, but are considered unlikely to be sources of electromagnetic emission. To test whether they have rapidly…

High Energy Astrophysical Phenomena · Physics 2019-08-18 Z. Doctor , R. Kessler , K. Herner , A. Palmese , M. Soares-Santos , J. Annis , D. Brout , D. E. Holz , M. Sako , A. Rest , P. Cowperthwaite , E. Berger , R. J. Foley , C. J. Conselice , M. S. S. Gill , S. Allam , E. Balbinot , R. E. Butler , H. -Y. Chen , R. Chornock , E. Cook , H. T. Diehl , B. Farr , W. Fong , J. Frieman , C. Fryer , J. García-Bellido , R. Margutti , J. L. Marshall , T. Matheson , B. D. Metzger , M. Nicholl , F. Paz-Chinchón , S. Salim , M. Sauseda , L. F. Secco , N. Smith , R. C. Smith , A. K. Vivas , D. L. Tucker , T. M. C. Abbott , S. Avila , K. Bechtol , E. Bertin , D. Brooks , E. Buckley-Geer , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , C. B. D'Andrea , L. N. da Costa , J. De Vicente , S. Desai , P. Doel , B. Flaugher , P. Fosalba , E. Gaztanaga , D. W. Gerdes , D. A. Goldstein , D. Gruen , R. A. Gruendl , G. Gutierrez , W. G. Hartley , D. L. Hollowood , K. Honscheid , B. Hoyle , D. J. James , T. Jeltema , S. Kent , K. Kuehn , N. Kuropatkin , O. Lahav , M. Lima , M. A. G. Maia , M. March , F. Menanteau , C. J. Miller , R. Miquel , E. Neilsen , B. Nord , R. L. C. Ogando , A. A. Plazas , A. Roodman , E. Sanchez , V. Scarpine , R. Schindler , M. Schubnell , S. Serrano , I. Sevilla-Noarbe , M. Smith , F. Sobreira , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , A. R. Walker , W. Wester

H.E.S.S. observations of PSR B1259-63 during its 2014 periastron passage

An extended observation campaign of the gamma-ray binary system PSR B1259$-$63 has been conducted with the H.E.S.S. (High Energy Stereoscopic System) II 5-telescope array during the system's periastron passage in 2014. We report on the…

High Energy Astrophysical Phenomena · Physics 2019-08-14 C. Romoli , P. Bordas , C. Mariaud , T. Murach , F. Aharonian , M. de Naurois , G. Pühlhofer , U. Schwanke , B. van Soelen , I. Sushch , V. Zabalza

The second H.E.S.S. gamma-ray burst catalogue: 15 years of observations with the H.E.S.S. telescopes

Recent observational efforts using imaging atmospheric Cherenkov telescopes (IACTs) have led to firm detections of very-high-energy (VHE) signals from bright gamma-ray bursts (GRBs), often at moderate redshifts. This work presents 15 years…

High Energy Astrophysical Phenomena · Physics 2026-03-24 A. Acharyya , F. Aharonian , C. Arcaro , H. Ashkar , M. Backes , V. Barbosa Martins , R. Batzofin , Y. Becherini , D. Berge , K. Bernlöhr , M. Böttcher , C. Boisson , J. Bolmont , J. Borowska , F. Brun , B. Bruno , C. Burger-Scheidlin , S. Casanova , J. Celic , M. Cerruti , S. Chandra , A. Chen , M. Chernyakova , J. O. Chibueze , O. Chibueze , T. Collins , B. Cornejo , G. Cotter , J. Damascene Mbarubucyeye , I. D. Davids , J. de Assis Scarpin , M. de Bony de Lavergne , M. de Naurois , E. de Oña Wilhelmi , A. G. Delgado Giler , J. Devin , A. Djannati-Ataï , J. Djuvsland , A. Dmytriiev , K. Egberts , K. Egg , J. -P. Ernenwein , C. Escañuela Nieves , M. D. Filipovic , G. Fontaine , S. Funk , S. Gabici , Y. A. Gallant , M. Genaro , J. F. Glicenstein , J. Glombitza , M. -H. Grondin , L. Heckmann , B. Heß , J. A. Hinton , W. Hofmann , T. L. Holch , M. Holler , D. Horns , Z. Huang , M. Jamrozy , F. Jankowsky , I. Jaroschewski , D. Jimeno Sanchez , I. Jung-Richardt , E. Kasai , K. Kasprzak , K. Katarzyński , D. Kerszberg , B. Khélifi , W. Kluzniak , N. Komin , K. Kosack , D. Kostunin , R. G. Lang , S. Lazarević , M. Lemoine-Goumard , J. -P. Lenain , P. Liniewicz , A. Luashvili , J. Mackey , D. Malyshev , D. Malyshev , V. Marandon , M. Mayer , A. Mehta , A. Mikhno , A. M. W. Mitchell , R. Moderski , M. O. Moghadam , L. Mohrmann , A. Montanari , E. Moulin , J. Niemiec , P. O'Brien , L. Olivera-Nieto , S. Panny , M. Panter , R. D. Parsons , U. Pensec , P. Pichard , S. Pita , G. Pühlhofer , M. Punch , A. Quirrenbach , M. Regeard , A. Reimer , O. Reimer , I. Reis , H. Ren , B. Reville , F. Rieger , G. Rowell , B. Rudak , E. Ruiz-Velasco , K. Sabri , V. Sahakian , H. Salzmann , D. A. Sanchez , A. Santangelo , M. Sasaki , F. Schüssler , M. Senniappan , J. N. S. Shapopi , W. Si Said , H. Sol , S. Spencer , Ł. Stawarz , S. Steinmassl , T. Tanaka , A. M. Taylor , G. L. Taylor , R. Terrier , M. Tsirou , T. Unbehaun , C. van Eldik , M. Vecchi , C. Venter , J. Vink , T. Wach , S. J. Wagner , A. Wierzcholska , M. Zacharias , A. A. Zdziarski , W. Zhong , S. J. Zhu , A. Zech

The H.E.S.S. Gravitational Wave Rapid Follow-up Program during O2 and O3

Since 2015, the direct detection of Gravitational Waves (GWs) became possible with ground-based interferometers like LIGO and Virgo. GWs became the center of attention of the astronomical community and electromagnetic observatories took a…

Instrumentation and Methods for Astrophysics · Physics 2021-08-11 Halim Ashkar , Francois Brun , Matthias Füßling , Clemens Hoischen , Ruslan Konno , Stefan Ohm , Heike Prokoph , Patrick Reichherzer , Fabian Schüssler , Monica Seglar Arroyo , Sylvia J Zhu

Observations of TeV binary systems with the H.E.S.S. telescope

Recent observations of binary systems obtained with the H.E.S.S. telescopes are providing crucial information on the physics of relativistic outflows and the engines powering them. We report here on new H.E.S.S. results on HESS J0632+057,…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Pol Bordas , Hélène Laffon , Mathieu de Naurois , Stefan Ohm , Emma de Oña Wilhelmi , Iurii Sushch , Francesca Volpe , Víctor Zabalza

H.E.S.S. observations of gamma-ray bursts in 2003-2007

Very-high-energy (VHE; >~100 GeV) gamma-rays are expected from gamma-ray bursts (GRBs) in some scenarios. Exploring this photon energy regime is necessary for understanding the energetics and properties of GRBs. GRBs have been one of the…

High Energy Astrophysical Phenomena · Physics 2009-02-27 F. Aharonian

Searches for TeV gamma-ray counterparts to Gravitational Wave events with H.E.S.S

The search for electromagnetic counterparts for gravitational waves events is one of the main topics of multi-messenger Astrophysics. Among these searches is the one for high energy gamma-ray emission with the H.E.S.S. Imaging Atmospheric…

High Energy Astrophysical Phenomena · Physics 2021-02-23 Halim Ashkar , Fabian Schüssler , Monica Seglar-Arroyo

VHE observations of the gamma-ray binary system LS 5039 with H.E.S.S

LS 5039 is a gamma-ray binary system observed in a broad energy range, from radio to TeV energies. The binary system exhibits both flux and spectral modulation as a function of its orbital period. The X-ray and very-high-energy (VHE, E >…

High Energy Astrophysical Phenomena · Physics 2019-08-14 C. Mariaud , P. Bordas , F. Aharonian , M. Boettcher , G. Dubus , M. de Naurois , C. Romoli , V. Zabalza

H.E.S.S. Observations of the Binary System PSR B1259-63/LS 2883 around the 2010/2011 Periastron Passage

Aim. In this paper we present very high energy (VHE; E>100 GeV) data from the \gamma-ray binary system PSR B1259-63/LS 2883 taken around its periastron passage (15th of December 2010) with the High Energy Stereoscopic System (H.E.S.S.) of…

High Energy Astrophysical Phenomena · Physics 2015-06-12 H. E. S. S. Collaboration , : , A. Abramowski , F. Acero , F. Aharonian , A. G. Akhperjanian , G. Anton , S. Balenderan , A. Balzer , A. Barnacka , Y. Becherini , J. Becker Tjus , K. Bernlöhr , E. Birsin , J. Biteau , A. Bochow , C. Boisson , J. Bolmont , P. Bordas , J. Brucker , F. Brun , P. Brun , T. Bulik , S. Carrigan , S. Casanova , M. Cerruti , P. M. Chadwick , R. C. G. Chaves , A. Cheesebrough , S. Colafrancesco , G. Cologna , J. Conrad , C. Couturier , M. Dalton , M. K. Daniel , I. D. Davids , B. Degrange , C. Deil , P. deWilt , H. J. Dickinson , A. Djannati-Ataï , W. Domainko , L. O'C. Drury , G. Dubus , K. Dutson , J. Dyks , M. Dyrda , K. Egberts , P. Eger , P. Espigat , L. Fallon , C. Farnier , S. Fegan , F. Feinstein , M. V. Fernandes , D. Fernandez , A. Fiasson , G. Fontaine , A. Förster , M. Füßling , M. Gajdus , Y. A. Gallant , T. Garrigoux , H. Gast , B. Giebels , J. F. Glicenstein , B. Glück , D. Göring , M. -H. Grondin , M. Grudzińska , S. Häffner , J. D. Hague , J. Hahn , D. Hampf , J. Harris , S. Heinz , G. Heinzelmann , G. Henri , G. Hermann , A. Hillert , J. A. Hinton , W. Hofmann , P. Hofverberg , M. Holler , D. Horns , A. Jacholkowska , C. Jahn , M. Jamrozy , I. Jung , M. A. Kastendieck , K. Katarzyński , U. Katz , S. Kaufmann , B. Khélifi , S. Klepser , D. Klochkov , W. Kluźniak , T. Kneiske , D. Kolitzus , Nu. Komin , K. Kosack , R. Kossakowski , F. Krayzel , P. P. Krüger , H. Laffon , G. Lamanna , J. Lefaucheur , M. Lemoine-Goumard , J. -P. Lenain , D. Lennarz , T. Lohse , A. Lopatin , C. -C. Lu , V. Marandon , A. Marcowith , J. Masbou , G. Maurin , N. Maxted , M. Mayer , T. J. L. McComb , M. C. Medina , J. Méhault , U. Menzler , R. Moderski , M. Mohamed , E. Moulin , C. L. Naumann , M. Naumann-Godo , M. de Naurois , D. Nedbal , N. Nguyen , J. Niemiec , S. J. Nolan , S. Ohm , E. de Oña Wilhelmi , B. Opitz , M. Ostrowski , I. Oya , M. Panter , R. D. Parsons , M. Paz Arribas , N. W. Pekeur , G. Pelletier , J. Perez , P. -O. Petrucci , B. Peyaud , S. Pita , G. Pühlhofer , M. Punch , A. Quirrenbach , S. Raab , M. Raue , A. Reimer , O. Reimer , M. Renaud , R. de los Reyes , F. Rieger , J. Ripken , L. Rob , S. Rosier-Lees , G. Rowell , B. Rudak , C. B. Rulten , V. Sahakian , D. A. Sanchez , A. Santangelo , R. Schlickeiser , A. Schulz , U. Schwanke , S. Schwarzburg , S. Schwemmer , F. Sheidaei , J. L. Skilton , H. Sol , G. Spengler , Ł. Stawarz , R. Steenkamp , C. Stegmann , F. Stinzing , K. Stycz , I. Sushch , A. Szostek , J. -P. Tavernet , R. Terrier , M. Tluczykont , C. Trichard , K. Valerius , C. van Eldik , G. Vasileiadis , C. Venter , A. Viana , P. Vincent , H. J. Völk , F. Volpe , S. Vorobiov , M. Vorster , S. J. Wagner , M. Ward , R. White , A. Wierzcholska , D. Wouters , M. Zacharias , A. Zajczyk , A. A. Zdziarski , A. Zech , H. -S. Zechlin

Recent H.E.S.S. results on extra-galactic sources

Since the beginning of scientific operations in 2003, more than 20 extra-galactic sources have been detected with H.E.S.S. (High Energy Stereoscopic System) at very high energies (VHE): apart from the starburst galaxy NGC 253, all of them…

Cosmology and Nongalactic Astrophysics · Physics 2019-08-14 Matteo Cerruti

H.E.S.S. Observations of LS 5039

Recent observations of the binary system LS5039 with the High Energy Stereoscopic System (H.E.S.S.) revealed that its Very High Energy (VHE) gamma-ray emission is modulated at the 3.9 days orbital period of the system. The bulk of the…

Astrophysics · Physics 2008-11-26 Mathieu De Naurois , the H. E. S. S. Collaboration Collaboration