Related papers: VHE Observations of Galactic binary systems with V…

VHE Observations of Galactic binary systems with VERITAS

A few Galactic objects are known to be variable sources of photons with energies above 100 GeV. These systems are mostly binaries, where variability can often be connected to the orbital period. Particle acceleration and gamma-ray…

High Energy Astrophysical Phenomena · Physics 2019-08-13 Gernot Maier

Observation of binary systems at very-high energies with VERITAS

Non-thermal variable emission from radio to very-high energy gamma rays (VHE; >100 GeV) are the prime characteristics of gamma-ray binaries. The underlying physical processes leading to the observed VHE emission are not well understood, as…

High Energy Astrophysical Phenomena · Physics 2019-08-13 Gernot Maier

VERITAS and H.E.S.S. observations of the gamma-ray binary HESS J0632+057

HESS J0632+057 has been recently identified as a new gamma-ray binary system. The source, located in the Monoceros region and associated with the massive Be star MWC 148, shows variability from radio to very high energy (VHE) gamma-rays,…

High Energy Astrophysical Phenomena · Physics 2015-06-12 Pol Bordas , Gernot Maier

Evidence for long-term Gamma-ray and X-ray variability from the unidentified TeV source HESS J0632+057

HESS J0632+057 is one of only two unidentified very-high-energy gamma-ray sources which appear to be point-like within experimental resolution. It is possibly associated with the massive Be star MWC 148 and has been suggested to resemble…

High Energy Astrophysical Phenomena · Physics 2011-02-11 VERITAS Collaboration , V. A. Acciari , E. Aliu , T. Arlen , M. Beilicke , W. Benbow , D. Boltuch , S. M. Bradbury , J. H. Buckley , V. Bugaev , K. Byrum , A. Cannon , A. Cesarini , A. Cesarini , Y. C. Chow , L. Ciupik , P. Cogan , R. Dickherber , C. Duke , T. Ergin , A. Falcone , S. J. Fegan , J. P. Finley , G. Finnegan , P. Fortin , L. Fortson , A. Furniss , K. Gibbs , G. H. Gillanders , J. Grube , R. Guenette , G. Gyuk , D. Hanna , J. Holder , D. Horan , C. M. Hui , T. B. Humensky , A. Imran , P. Kaaret , N. Karlsson , M. Kertzman , D. Kieda , J. Kildea , A. Konopelko , H. Krawczynski , F. Krennrich , M. J. Lang , S. LeBohec , G. Maier , A. McCann , M. McCutcheon , J. Millis , P. Moriarty , R. Mukherjee , R. A. Ong , A. N. Otte , D. Pandel , J. S. Perkins , D. Petry , M. Pohl , J. Quinn , K. Ragan , L. C. Reyes , P. T. Reynolds , H. J. Rose , M. Schroedter , G. H. Sembroski , A. W. Smith , D. Steele , M. Theiling , J. A. Toner , A. Varlotta , V. V. Vassiliev , S. Vincent , R. G. Wagner , S. P. Wakely , J. E. Ward , T. C. Weekes , A. Weinstein , T. Weisgarber , D. A. Williams , S. Wissel , M. Wood

Long-term TeV Observations of the Gamma-ray Binary HESS J0632+057 with VERITAS

The gamma-ray binary HESS J0632+057 has been observed at very-high energies for almost ten years by all major systems of imaging atmospheric Cherenkov telescopes. We present new observations taken by the VERITAS observatory and an updated…

High Energy Astrophysical Phenomena · Physics 2019-08-13 Gernot Maier

VERITAS observations of HESS J0632+057

HESS J0632+057 is one of only two unidentified high energy gamma-ray sources which appear to be point-like in nature. It is possibly associated with the massive star MWC 148 and has been suggested to resemble known TeV binary systems like…

High Energy Astrophysical Phenomena · Physics 2019-08-13 G. Maier

Long-term TeV and X-ray Observations of the Gamma-ray Binary HESS J0632+057

HESS J0632+057 is the only gamma-ray binary known so far whose position in the sky allows observations with ground-based observatories both in the northern and southern hemispheres. Here we report on long-term observations of HESS J0632+057…

High Energy Astrophysical Phenomena · Physics 2015-06-18 VERITAS Collaboration , E. Aliu , S. Archambault , T. Aune , B. Behera , M. Beilicke , W. Benbow , K. Berger , R. Bird , A. Bouvier , J. H. Buckley , V. Bugaev , K. Byrum , M. Cerruti , X. Chen , L. Ciupik , M. P. Connolly , W. Cui , C. Duke , J. Dumm , M. Errando , A. Falcone , S. Federici , Q. Feng , J. P. Finley , P. Fortin , L. Fortson , A. Furniss , N. Galante , G. H. Gillanders , S. Griffin , S. T. Griffiths , J. Grube , G. Gyuk , D. Hanna , J. Holder , G. Hughes , T. B. Humensky , P. Kaaret , M. Kertzman , Y. Khassen , D. Kieda , H. Krawczynski , F. Krennrich , M. J. Lang , A. S Madhavan , G. Maier , P. Majumdar , A. McCann , P. Moriarty , R. Mukherjee , D. Nieto , A. O'Faoláin de Bhróithe , R. A. Ong , A. N. Otte , N. Park , J. S. Perkins , M. Pohl , A. Popkow , H. Prokoph , J. Quinn , K. Ragan , J. Rajotte , L. C. Reyes , P. T. Reynolds , G. T. Richards , E. Roache , J. Rousselle , G. H. Sembroski , F. Sheidaei , C. Skole , A. W. Smith , D. Staszak , M. Stroh , I. Telezhinsky , M. Theiling , J. V. Tucci , J. Tyler , A. Varlotta , S. Vincent , S. P. Wakely , A. Weinstein , R. Welsing , D. A. Williams , A. Zajczyk , B. Zitzer , H. E. S. S. Collaboration , : , A. Abramowski , F. Aharonian , F. Ait Benkhali , A. G. Akhperjanian , E. Angüner , G. Anton , S. Balenderan , A. Balzer , A. Barnacka , Y. Becherini , J. Becker Tjus , K. Bernlöhr , E. Birsin , E. Bissaldi , J. Biteau , M. Böttcher , C. Boisson , J. Bolmont , P. Bordas , J. Brucker , F. Brun , P. Brun , T. Bulik , S. Carrigan , S. Casanova , M. Cerruti , P. M. Chadwick , R. Chalme-Calvet , R. C. G. Chaves , A. Cheesebrough , M. Chrétien , 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 , T. Edwards , K. Egberts , P. Eger , P. Espigat , C. Farnier , S. Fegan , F. Feinstein , M. V. Fernandes , D. Fernandez , A. Fiasson , G. Fontaine , A. Forster , M. Füßling , M. Gajdus , Y. A. Gallant , T. Garrigoux , G. Giavitto , B. Giebels , J. F. Glicenstein , M. -H. Grondin , M. Grudzińska , S. Häffner , J. Hahn , J. Harris , G. Heinzelmann , G. Henri , G. Hermann , O. Hervet , A. Hillert , J. A. Hinton , W. Hofmann , P. Hofverberg , M. Holler , D. Horns , A. Jacholkowska , C. Jahn , M. Jamrozy , M. Janiak , F. Jankowsky , I. Jung , M. A. Kastendieck , K. Katarzyński , U. Katz , S. Kaufmann , B. Khélifi , M. Kieffer , S. Klepser , D. Klochkov , W. Kluźniak , T. Kneiske , D. Kolitzus , Nu. Komin , K. Kosack , S. Krakau , F. Krayzel , P. P. Krüger , H. Laffon , G. Lamanna , J. Lefaucheur , A. Lemiére , M. Lemoine-Goumard , J. -P. Lenain , D. Lennarz , T. Lohse , A. Lopatin , C. -C. Lu , V. Marandon , A. Marcowith , R. Marx , G. Maurin , N. Maxted , M. Mayer , T. J. L. McComb , J. Méhault , U. Menzler , M. Meyer , R. Moderski , M. Mohamed , E. Moulin , T. Murach , C. L. Naumann , M. de Naurois , J. Niemiec , S. J. Nolan , L. Oakes , S. Ohm , E. de Onña 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 , H. Poon , G. Pühlhofer , M. Punch , A. Quirrenbach , S. Raab , M. Raue , A. Reimer , O. Reimer , M. Renaud , R. de los Reyes , F. Rieger , L. Rob , C. Romoli , S. Rosier-Lees , G. Rowell , B. Rudak , C. B. Rulten , V. Sahakian , D. A. Sanchez , A. Santangelo , R. Schlickeiser , F. Schüssler , A. Schulz , U. Schwanke , S. Schwarzburg , S. Schwemmer , H. Sol , G. Spengler , F. Spies , Ł. Stawarz , R. Steenkamp , C. Stegmann , F. Stinzing , K. Stycz , I. Sushch , A. Szostek , J. -P. Tavernet , T. Tavernier , A. M. Taylor , R. Terrier , M. Tluczykont , C. Trichard , K. Valerius , C. van Eldik , G. Vasileiadis , C. Venter , A. Viana , P. Vincent , H. J. Völk , F. Volpe , M. Vorster , S. J. Wagner , P. Wagner , M. Ward , M. Weidinger , Q. Weitzel , R. White , A. Wierzcholska , P. Willmann , A. Wörnlein , D. Wouters , M. Zacharias , A. Zajczyk , A. A. Zdziarski , A. Zech , H. -S. Zechlin

VERITAS Observations of TeV Binaries

Since the commissioning of the array in Spring 2007, the VERITAS array (sensitive in the 0.1-50 TeV energy range) has acquired over 300 hours of observations investigating the TeV emission from X-ray binary star systems, in particular…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Andrew W. Smith

VHE Observations of the Binary Candidate HESS J0632+057 with H.E.S.S. and VERITAS

HESS J0632+057 is an unidentified gamma-ray source located in the Monoceros region, probably associated with the massive Be star MWC 148. H.E.S.S. and VERITAS observations in the very high energy (VHE) range combined with Swift X-ray data…

High Energy Astrophysical Phenomena · Physics 2019-08-15 Gernot Maier , Joanna Skilton

Observation of Galactic Gamma-ray Sources with VERITAS

We report on VERITAS observations at energies above 200 GeV of known or potential galactic gamma-ray sources. The observed objects comprise pulsars, pulsar wind nebulae, high-mass X-ray binaries and gamma-ray sources with unknown…

Astrophysics · Physics 2019-08-13 G. Maier

VERITAS Observations of X-ray Binaries

X-ray binaries stand as the brightest X-ray sources in the galaxy, showing both variable X-ray emission and extreme flares. Some of these systems have been recently discovered to be TeV gamma-ray emitters, with the high energy emission…

High Energy Astrophysical Phenomena · Physics 2019-08-13 R. Guenette

A Decade of TeV Observations of the Gamma-ray Binary HESSJ0632+057 with VERITAS

The gamma-ray binary HESSJ0632+057 (VERJ0633+057) has been observed at very-high energies for a decade by all major systems of imaging atmospheric Cherenkov telescopes. We present here new observations taken by the VERITAS observatory…

High Energy Astrophysical Phenomena · Physics 2017-08-09 S. Schlenstedt

Observation of the gamma-ray binary HESS J0632+057 with the H.E.S.S., MAGIC, and VERITAS telescopes

The results of gamma-ray observations of the binary system HESS J0632+057 collected during 450 hours over 15 years, between 2004 and 2019, are presented. Data taken with the atmospheric Cherenkov telescopes H.E.S.S., MAGIC, and VERITAS at…

High Energy Astrophysical Phenomena · Physics 2022-01-05 C. B. Adams , W. Benbow , A. Brill , J. H. Buckley , M. Capasso , A. J. Chromey , M. Errando , A. Falcone , K. A. Farrell , Q. Feng , J P. Finley , G. Foote , L. Fortson , A. Furniss , A. Gent , G. H. Gillanders , C. Giuri , O. Gueta , D. Hanna , T. Hassan , O. Hervet , J. Holder , B. Hona , T. B. Humensky , W. Jin , P. Kaaret , M. Kertzman , D. Kieda , T. K. Kleiner , F. Krennrich , S. Kumar , M. J. Lang , M. Lundy , G. Maier , C. E. McGrath , P. Moriarty , R. Mukherjee , D. Nieto , M. Nievas-Rosillo , S. O'Brien , R. A. Ong , A. N. Otte , N. Park , S. Patel , K. Pfrang , A. Pichel , M. Pohl , R. R. Prado , J. Quinn , K. Ragan , P. T. Reynolds , D. Ribeiro , E. Roache , A. C. Rovero , J. L. Ryan , M. Santander , S. Schlenstedt , G. H. Sembroski , R. Shang , D. Tak , V. V. Vassiliev , A. Weinstein , D. A. Williams , T. J. Williamson , V. A. Acciari , S. Ansoldi , L. A. Antonelli , A. Arbet Engels , M. Artero , K. Asano , D. Baack , A. Babić , A. Baquero , U. Barres de Almeida , J. A. Barrio , I. Batković , J. Becerra González , W. Bednarek , L. Bellizzi , E. Bernardini , M. Bernardos , A. Berti , J. Besenrieder , W. Bhattacharyya , C. Bigongiari , A. Biland , O. Blanch , H. Bökenkamp , G. Bonnol , Ž. Bošnjak , G. Busetto , R. Carosi , G. Ceribella , M. Cerruti , Y. Chai , A. Chilingarian , S. Cikota , S. M. Colak , E. Colombo , J. L. Contreras , J. Cortina , S. Covino , G. D'Amico , V. D'Elia , P. Da Vela , F. Dazzi , A. De Angelis , B. De Lotto , M. Delfino , J. Delgado , C. Delgado Mendez , D. Depaoli , F. Di Pierro , L. Di Venere , E. Do Souto Espiñeira , D. Dominis Prester , A. Donini , D. Dorner , M. Doro , D. Elsaesser , V. Fallah Ramazani , A. Fattorini , M. V. Fonseca , L. Font , C. Fruck , S. Fukami , Y. Fukazawa , R. J. García López , M. Garczarczyk , S. Gasparyan , M. Gaug , N. Giglietto , F. Giordano , P. Gliwny , N. Godinović , J. G. Green , D. Green , D. Hadasch , A. Hahn , L. Heckmann , J. Herrera , J. Hoang , D. Hrupec , M. Hütten , T. Inada , K. Ishio , Y. Iwamura , I. Jiménez Martínez , J. Jormanainen , L. Jouvin , M. Karjalainen , D. Kerszberg , Y. Kobayashi , H. Kubo , J. Kushida , A. Lamastra , D. Lelas , F. Leone , E. Lindfors , L. Linhoff , S. Lombardi , F. Longo , R. López-Coto , M. López-Moya , A. López-Oramas , S. Loporchio , B. Machado de Oliveira Fraga , C. Maggio , P. Majumdar , M. Makariev , M. Mallamaci , G. Maneva , M. Manganaro , K. Mannheim , L. Maraschi , M. Mariotti , M. Martínez , D. Mazin , S. Menchiari , S. Mender , S. Mićanović , D. Miceli , T. Miener , J. M. Miranda , R. Mirzoyan , E. Molina , A. Moralejo , D. Morcuende , V. Moreno , E. Moretti , T. Nakamori , L. Nava , V. Neustroev , C. Nigro , K. Nilsson , K. Nishijima , K. Noda S. Nozaki , Y. Ohtani , T. Oka , J. Otero-Santos , S. Paiano , M. Palatiello , D. Paneque , R. Paoletti , J. M. Paredes , L. Pavletić , P. Peñil , M. Persic , M. Pihet , P. G. Prada Moroni , E. Prandini , C. Priyadarshi , I. Puljak , W. Rhode , M. Ribó , J. Rico , C. Righi , A. Rugliancich , L. Saha , N. Sahakyan , T. Saito , S. Sakurai , K. Satalecka , F. G. Saturni , B. Schleicher , K. Schmidt , T. Schweizer , J. Sitarek , I. Šnidarić , D. Sobczynska A. Spolon , A. Stamerra , J. Strišković , D. Strom , M. Strzys , Y. Suda , T. Surić , M. Takahashi , R. Takeishi , F. Tavecchio , P. Temnikov , T. Terzić , M. Teshima , L. Tosti , S. Truzzi , A. Tutone , S. Ubach , J. van Scherpenberg , G. Vanzo , M. Vazquez Acosta , S. Ventura , V. Verguilov , C. F. Vigorito , V. Vitale , I. Vovk , M. Will , C. Wunderlich , T. Yamamoto , D. Zarić , H. Abdalla , F. Aharonian , F. Ait-Benkhali , O. Anguener , C. Arcaro , H. Ashkar , M. Backes , V. Barbosa Martins , M. Barnard , R. Batzofin , Y. Becherini , D. Berge , K. Bernloehr , B. Bi , M. Boettcher , C. Boisson , J. Bolmont , M. de Bony , M. Breuhaus , R. Brose , F. Brun , T. Bulik , S. Caroff , S. Casanova , T. Chand , A. Chen , G. Cotter , J. Damascene Mbarubucyeye , J. Devin , A. Djannati-Atai , K. Egberts , J. Ernenwein , S. Fegan , A. Fiasson , G. Fichet de Clairfontaine , G. Fontaine , M. Fuessling , S. Funk , S. Gabici , G. Giavitto , D. Glawion , J. Glicenstein , M. Grondin , J. Hinton , W. Hofmann , T. Holch , M. Holler , D. Horns , Z. Huang , M. Jamrozy , F. Jankowsky , V. Joshi , I. Jung-Richardt , E. Kasai , K. Katarzynski , B. Khelifi , N. Komin , K. Kosack , D. Kostunin , S. Le Stum , A. Lemiere , J. Lenain , F. Leuschner , C. Levy , T. Lohse , A. Luashvili , I. Lypova , J. Mackey , J. Majumdar , D. Malyshev , V. Marandon , P. Marchegiani , A. Marcowith , G. Marti'i-Devesa , R. Marx , G. Maurin , P. Meintjes , A. Mitchell , R. Moderski , L. Mohrmann , A. Montanari , E. Moulin , J. Muller , T. Murach , M. de Naurois , A. Nayerhoda , J. Niemiec , A. Noel , P. O'Brien , S. Ohm , L. Olivera-Nieto , E. de Ona-Wilhelmi , M. Ostrowski , S. Panny , M. Panter , D. Parsons , G. Peron , V. Poireau , D. Prokhorov , H. Prokoph , G. Puehlhofer , M. Punch , A. Quirrenbach , P. Reichherzer , A. Reimer , O. Reimer , M. Renaud , F. Rieger , C. Romoli , G. Rowell , B. Rudak , H. Rueda Ricarte , E. Ruiz Velasco , V. Sahakian , S. Sailer , H. Salzmann , D. Sanchez , A. Santangelo , M. Sasaki , F. Schuessler , H. Schutte , U. Schwanke , M. Senniappan , J. Shapopi , R. Simoni , H. Sol , A. Specovius , S. Spencer , R. Steenkamp , S. Steinmassl , L. Sun , T. Takahashi , T. Tanaka , R. Terrier , N. Tsuji , Y. Uchiyama , C. van Eldik , B. van Soelen , J. Veh , C. Venter , J. Vink , S. Wagner , R. White , A. Wierzcholska , Y. W. Wong , M. Zacharias , D. Zargaryan , A. Zdziarski , A. Zech , S. Zhu , S. Zouari , N. Zywucka , Y. Moritani , D. F. Torres

A New TeV Binary: The Discovery of an Orbital Period in HESS J0632+057

HESS J0632+057 is a variable, point-like source of Very High Energy ($>100$ GeV) gamma-rays located in the Galactic plane. It is positionally coincident with a Be star, it is a variable radio and X-ray source, has a hard X-ray spectrum, and…

Astrophysics of Galaxies · Physics 2015-05-27 Stephen Bongiorno , Abraham Falcone , Michael Stroh , Jamie Holder , Joanna Skilton , Jim Hinton , Neil Gehrels , Jeff Grube

Combined VERITAS and NuSTAR observations of the gamma-ray binary HESS J0632+057

HESS J0632+057 is a gamma-ray binary composed of a compact object and a Be star, with an orbital period of about 315 days. The actual nature of its non-thermal emission, spanning from radio to very-high-energy (VHE, >100 GeV) gamma-rays, is…

High Energy Astrophysical Phenomena · Physics 2019-08-09 Raul R. Prado , Charles Hailey , Shifra Mandel , Kaya Mori

Long-term gamma-ray observations of the binary HESS J0632+057 with H.E.S.S., MAGIC and VERITAS

The gamma-ray binary HESS J0632+057 has been observed at very-high energies (E $>$ 100 GeV) for more than ten years by the major systems of imaging atmospheric Cherenkov telescopes. We present a summary of results obtained with the…

High Energy Astrophysical Phenomena · Physics 2019-08-13 G. Maier , O. Blanch , D. Hadasch , A. López-Oramas , N. Komin , M. Lundy , D. Malyshev , J. Moepi , S. Ohm , G. Pühlhofer , R. Prado , S. Schlenstedt , D. F. Torres , B. Zitzer

Highlights of Galactic Physics with VERITAS

VERITAS (Very Energetic Radiation Imaging Telescope Array System) is one of the most sensitive currently operating arrays of imaging atmospheric Cherenkov telescopes, which detect very high-energy (VHE; E > 100 GeV) gamma rays. VERITAS is…

High Energy Astrophysical Phenomena · Physics 2019-08-16 Gregory T. Richards

HESS J0632+057 : A new gamma-ray binary?

The High Energy Stereoscopic System (HESS) survey of the Galactic plane has established the existence of a substantial number (~40) of Galactic TeV gamma-ray sources, a large fraction of which remain unidentified. HESS J0632+057 is one of a…

Astrophysics · Physics 2008-12-18 J. A. Hinton , J. L. Skilton , S. Funk , J. Brucker , F. A. Aharonian , G. Dubus , A. Fiasson , Y. Gallant , W. Hofmann , A. Marcowith , O. Reimer

Probing the Nature of the unidentified TeV Gamma-ray source HESS J0632+057 with Swift

New generation TeV gamma-ray telescopes have discovered many new sources, including several enigmatic unidentified TeV objects. HESS J0632+057 is a particularly interesting unidentified TeV source since: it is a point source, it has a…

High Energy Astrophysical Phenomena · Physics 2015-05-14 A. D. Falcone , J. Grube , J. Hinton , J. Holder , G. Maier , R. Mukherjee , J. Skilton , M. Stroh

The missing GeV {\gamma}-ray binary: Searching for HESS J0632+057 with Fermi-LAT

The very high energy (VHE; >100 GeV) source HESS J0632+057 has been recently confirmed as a \gamma-ray binary, a subclass of the high mass X-ray binary (HMXB) population, through the detection of an orbital period of 321 days. We performed…

High Energy Astrophysical Phenomena · Physics 2015-06-17 G. A. Caliandro , A. B. Hill , D. F. Torres , D. Hadasch , P. Ray , A. Abdo , J. W. T. Hessels , A. Ridolfi , A. Possenti , M. Burgay , N. Rea , P. H. T. Tam , R. Dubois , G. Dubus , T. Glanzman , T. Jogler