Discovery of the VHE gamma-ray source HESS J1832-093 in the vicinity of SNR G22.7-0.2

A. Abramowski; Fabio Acero; F. Aharonian; F. Ait Benkhali; A. G. Akhperjanian; E. Angüner; G. Anton; S. Balenderan; Agnès 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; Y. Cui; 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. Förster; 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; Michel 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. Lemière; M. Lemoine-Goumard; J. -P. Lenain; D. Lennarz; T. Lohse; A. Lopatin; C. -C. Lu; V. Marandon; Alexandre Marcowith; R. Marx; G. Maurin; N. Maxted; M. Mayer; T. J. L. Mccomb; J. Méhault; P. J. Meintjes; U. Menzler; M. Meyer; R. Moderski; M. Mohamed; Emmanuel Moulin; T. Murach; C. L. Naumann; M. de Naurois; J. Niemiec; S. J. Nolan; L. Oakes; S. Ohm; E. de O Na 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; Matthieu 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; L. 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; B. van Soelen; George Vasileiadis; C. Venter; A. Viana; P. Vincent; H. J. Völk; F. Volpe; M. Vorster; T. Vuillaume; S. J. Wagner; P. Wagner; M. Ward; M. Weidinger; Q. Weitzel; R. White; A. Wierzcholska; P. Willmann; A. Wörnlein; D. Wouters; V. Zabalza; M. Zacharias; A. Zajczyk; A. A. Zdziarski; A. Zech; H. -S. Zechlin

doi:10.1093/mnras/stu2148

Journal articles

Discovery of the VHE gamma-ray source HESS J1832-093 in the vicinity of SNR G22.7-0.2

A. Abramowski ¹ Fabio Acero ² F. Aharonian ^{3, 4, 5} F. Ait Benkhali ³ A. G. Akhperjanian ⁵ E. Angüner ⁶ G. Anton ⁷ S. Balenderan ⁸ Agnès Balzer ^{9, 10} A. Barnacka ¹¹ Y. Becherini ¹² J. Becker Tjus ¹³ K. Bernlöhr ^{3, 6} E. Birsin ⁶ E. Bissaldi ¹⁴ J. Biteau ¹⁵ M. Böttcher ¹⁶ C. Boisson ¹⁷ J. Bolmont ¹⁸ P. Bordas ¹⁹ J. Brucker ⁷ F. Brun ³ P. Brun ²⁰ T. Bulik ² S. Carrigan ³ S. Casanova ^{16, 3} M. Cerruti ^{21, 22} P. M. Chadwick ⁸ R. Chalme-Calvet ¹⁸ R. C. G. Chaves ² A. Cheesebrough ⁸ M. Chrétien ¹⁸ S. Colafrancesco ²³ G. Cologna ²⁴ J. Conrad ²⁵ C. Couturier ¹⁸ Y. Cui ¹⁹ M. Dalton ²⁶ M. K. Daniel ⁸ I. D. Davids ^{16, 27} B. Degrange ¹⁵ C. Deil ³ P. Dewilt ²⁸ H. J. Dickinson ²⁹ A. Djannati-Ataï ³⁰ W. Domainko ³ L. O'C. Drury ⁴ G. Dubus ³¹ K. Dutson ³² J. Dyks ¹¹ M. Dyrda ³³ T. Edwards ³ K. Egberts ¹⁴ P. Eger ³ P. Espigat ³⁰ C. Farnier ²⁹ S. Fegan ¹⁵ F. Feinstein ³⁴ M. V. Fernandes ¹ D. Fernandez ³⁴ A. Fiasson ³⁵ G. Fontaine ¹⁵ A. Förster ³ M. Füßling ³⁶ M. Gajdus ⁶ Y. A. Gallant ³⁴ T. Garrigoux ¹⁸ G. Giavitto ⁹ B. Giebels ¹⁵ J. F. Glicenstein ² M. -H. Grondin ^{3, 24} M. Grudzińska ¹¹ S. Häffner ⁷ J. Hahn ³ J. Harris ⁸ G. Heinzelmann ¹ G. Henri ³¹ G. Hermann ³ O. Hervet ²¹ A. Hillert ³ J. A. Hinton ³² W. Hofmann ³ P. Hofverberg ³ M. Holler ³⁶ D. Horns ¹ A. Jacholkowska ¹⁸ C. Jahn ⁷ M. Jamrozy ³⁷ M. Janiak ¹¹ F. Jankowsky ²⁴ I. Jung ⁷ M. A. Kastendieck ¹ K. Katarzyński ³⁸ U. Katz ⁷ S. Kaufmann ²⁴ B. Khélifi ¹⁵ Michel Kieffer ¹⁸ S. Klepser ⁹ D. Klochkov ¹⁹ W. Kluźniak ¹¹ T. Kneiske ¹ D. Kolitzus ¹⁴ Nu. Komin ³⁵ K. Kosack ² S. Krakau ¹³ F. Krayzel ³⁵ P. P. Krüger ^{16, 3} H. Laffon ²⁶ G. Lamanna ³⁵ J. Lefaucheur ³⁰ A. Lemière ³⁰ M. Lemoine-Goumard ²⁶ J. -P. Lenain ¹⁸ D. Lennarz ³ T. Lohse ⁶ A. Lopatin ⁷ C. -C. Lu ³ V. Marandon ³ Alexandre Marcowith ³⁴ R. Marx ³ G. Maurin ³⁵ N. Maxted ²⁸ M. Mayer ³⁶ T. J. L. Mccomb ⁸ J. Méhault ³⁴ P. J. Meintjes ³⁹ U. Menzler ¹³ M. Meyer ²⁹ R. Moderski ¹¹ M. Mohamed ²⁴ Emmanuel Moulin ⁴⁰ T. Murach ⁶ C. L. Naumann ¹⁸ M. de Naurois ¹⁵ J. Niemiec ⁴¹ S. J. Nolan ⁸ L. Oakes ⁶ S. Ohm ³² E. de O Na Wilhelmi ³ B. Opitz ¹ M. Ostrowski ⁴¹ I. Oya ⁶ M. Panter ³ R. D. Parsons ³ M. Paz Arribas ⁶ N. W. Pekeur ¹⁶ G. Pelletier ³¹ J. Perez ⁴² P. -O. Petrucci ³¹ B. Peyaud ² S. Pita ³⁰ H. Poon ³ G. Pühlhofer ¹⁹ M. Punch ³⁰ A. Quirrenbach ²⁴ S. Raab ⁷ M. Raue ¹ A. Reimer ¹⁴ O. Reimer ¹⁴ Matthieu Renaud ³⁴ R. de Los Reyes ³ F. Rieger ³ L. Rob ⁴³ C. Romoli ⁴ S. Rosier-Lees ³⁵ G. Rowell ²⁸ B. Rudak ¹¹ C. B. Rulten ²¹ V. Sahakian ⁵ D. A. Sanchez ³⁵ A. Santangelo ¹⁹ R. Schlickeiser ¹³ F. Schüssler ² A. Schulz ⁹ U. Schwanke ⁶ S. Schwarzburg ¹⁹ S. Schwemmer ²⁹ H. Sol ²¹ G. Spengler ⁶ F. Spies ¹ L. Stawarz ⁴⁴ R. Steenkamp ²⁷ C. Stegmann ⁹ F. Stinzing ⁷ K. Stycz ⁹ I. Sushch ⁶ A. Szostek ³⁷ J. -P. Tavernet ¹⁸ T. Tavernier ³⁰ A. M. Taylor ⁴ R. Terrier ³⁰ M. Tluczykont ¹ C. Trichard ³⁵ K. Valerius ⁷ C. van Eldik ⁷ B. van Soelen ³⁹ George Vasileiadis ³⁴ C. Venter ¹⁶ A. Viana ³ P. Vincent ¹⁸ H. J. Völk ³ F. Volpe ³ M. Vorster ¹⁶ T. Vuillaume ³¹ S. J. Wagner ²⁴ P. Wagner ⁶ M. Ward ⁸ M. Weidinger ¹³ Q. Weitzel ³ R. White ³² A. Wierzcholska ⁴⁴ P. Willmann ⁷ A. Wörnlein ⁷ D. Wouters ² V. Zabalza ³ M. Zacharias ¹³ A. Zajczyk ¹¹ A. A. Zdziarski ¹¹ A. Zech ²¹ H. -S. Zechlin ¹

1 Institut für Experimentalphysik [Hamburg]

2 CEA - CEA- Saclay

3 MPIK - Max Planck Institute for Nuclear Physics

4 DIAS - Dublin Institute for Advanced Studies

5 NAS RA - National Academy of Sciences of the Republic of Armenia [Yerevan]

6 Humboldt-Universität zu Berlin

7 Physikalisches Institut [Erlangen]

8 Department of Physics [Durham]

9 DESY - Deutsches Elektronen-Synchrotron [Zeuthen]

10 Universität Potsdam

11 Astronomical Observatory [Warsaw]

12 Linnaeus University

13 ITP4 - Institut für Theoretische Physik IV [Bochum]

14 Institut f¨ur Astro- und Teilchenphysik and Institut f¨ur Theoretische Physik

15 LLR - Laboratoire Leprince-Ringuet

16 NWU - North-West University [South Aftrica]

17 LUTH (UMR_8102) - Laboratoire Univers et Théories

18 LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies

19 IAAT - Institut für Astronomie und Astrophysik [Tübingen]

20 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers

21 LUTH (UMR_8102) - Laboratoire Univers et Théories

22 CfA - Harvard-Smithsonian Center for Astrophysics

23 WITS - University of the Witwatersrand [Johannesburg]

24 LSW - Landessternwarte Königstuhl [ZAH]

25 Stockholm University

26 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan

27 NUST - Namibia University of Science and Technology

28 University of Adelaide

29 Oskar Klein Centre [Stockholm]

30 APC (UMR_7164) - AstroParticule et Cosmologie

31 IPAG - Institut de Planétologie et d'Astrophysique de Grenoble

32 Department of Physics and Astronomy [Leicester]

33 IFJ - Instytut Fizyki Jądrowej PAN

34 LUPM - Laboratoire Univers et Particules de Montpellier

35 LAPP - Laboratoire d'Annecy de Physique des Particules

36 Institut für Physik und Astrophysik [Potsdam]

37 Obserwatorium Astronomiczne

38 TCfA - Torun Centre for Astronomy

39 University of the Free State [South Africa]

40 UPMC - Université Pierre et Marie Curie - Paris 6 - UFR de Médecine Pierre et Marie Curie

41 Astronomical Observatory [Kraków]

42 Institut für Experimentalphysik [Innsbruck]

43 Institute of Astronomy [Prague]

44 UJ - Uniwersytet Jagielloński w Krakowie = Jagiellonian University

Abstract : The region around the supernova remnant (SNR) W41 contains several TeV sources and has prompted the H.E.S.S.Collaboration to perform deep observations of this field of view. This resulted in the discovery of the new very high energy (VHE) source HESS J1832−093, at the position RA = 18h32m50s ± 3s stat ± 2s syst, Dec = −9◦22′36′′ ± 32′′stat ± 20′′syst (J2000), spatially coincident with a part of the radio shell of the neigh TeV of Φ0 = (4.8 ± 0.8stat ± 1.0syst) × 10−13 cm−2s−1 TeV−1. The location of the gamma-ray emission on the edge of the SNR rim first suggested a signature of escaping cosmic-rays illuminating a nearby molecular cloud. Then a dedicated XMM-Newton observation led to the discovery of a new X-ray point source spatially coincident with the TeV excess. Two other scenarios were hence proposed to identify the nature of HESS J1832−093. Gamma-rays from inverse Compton radiation in the framework of a pulsar wind nebula scenario or the possibility of gamma-ray production within a binary system are therefore also considered. Deeper multi-wavelength observations will help to shed new light on this intriguing VHE source.

Keywords : ISM: individual objects: SNR G22.7−0.2 Astroparticle physics Gamma rays: general ISM: individual objects: HESS J1832−093

Document type :

Journal articles

Domain :

Sciences of the Universe [physics] / Astrophysics [astro-ph] / High Energy Astrophysical Phenomena [astro-ph.HE]

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Discovery of the VHE gamma-ray source HESS J1832-093 in the vicinity of SNR G22.7-0.2

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Discovery of the VHE gamma-ray source HESS J1832-093 in the vicinity of SNR G22.7-0.2

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