Discovery of VHE γ-rays from the high-frequency-peaked BL Lacertae object RGB J0152+017

F. Aharonian; A. G. Akhperjanian; U. Barres De Almeida; A. R. Bazer-Bachi; B. Behera; M. Beilicke; W. Benbow; K. Bernlöhr; C. Boisson; V. Borrel; I. Braun; E. Brion; J. Brucker; R. Bühler; T. Bulik; I. Büsching; T. Boutelier; S. Carrigan; P. M. Chadwick; R. C G Chaves; L. M. Chounet; A. C. Clapson; G. Coignet; R. Cornils; L. Costamante; M. Dalton; B. Degrange; H. J. Dickinson; A. Djannati-Ataï; W. Domainko; L. O C Drury; F. Dubois; G. Dubus; J. Dyks; K. Egberts; D. Emmanoulopoulos; P. Espigat; C. Farnier; F. Feinstein; A. Fiasson; A. Förster; G. Fontaine; M. Füßling; S. Gabici; Y. A. Fallant; B. Giebels; J. F. Glicenstein; B. Glück; P. Goret; C. Hadjichristidis; D. Hauser; M. Hauser; G. Heinzelmann; G. Henri; G. Hermann; J. A. Hinton; A. Hoffmann; W. Hofmann; M. Holleran; S. Hoppe; D. Horns; A. Jacholkowska; O. C. De Jager; I. Jung; K. Katarzyński; S. Kaufmann; E. Kendziorra; M. Kerschhaggl; D. Khangulyan; B. Khélifi; D. Keogh; Nu Komin; K. Kosack; G. Lamanna; I. J. Latham; J. P. Lenain; T. Lohse; J. M. Martin; O. Martineau-Huynh; A. Marcowith; C. Masterson; D. Maurin; T. J L McComb; R. Moderski; E. Moulin; M. Naumann-Godo; M. De Naurois; D. Nedbal; D. Nekrassov; S. J. Nolan; S. Ohm; J. P. Olive; E. De Oña Wilhelmi; K. J. Orford; J. L. Osborne; M. Ostrowski; M. Panter; G. Pedaletti; G. Pelletier; P. O. Petrucci; S. Pita; G. Pühlhofer; M. Punch; A. Quirrenbach; B. C. Raubenheimer; M. Raue; S. M. Rayner; M. Renaud; F. Rieger; J. Ripken; L. Rob; S. Rosier-Lees; G. Rowell; B. Rudak; J. Ruppel; V. Sahakian; A. Santangelo; R. Schlickeiser; F. M. Schöck; R. Schröder; U. Schwanke; S. Schwarzburg; S. Schwemmer; A. Shalchi; H. Sol; D. Spangler; Stawarz; R. Steenkamp; C. Stegmann; G. Superina; P. H. Tam; J. P. Tavernet; R. Terrier; C. Van Eldik; G. Vasileiadis; C. Venter; J. P. Vialle; P. Vincent; M. Vivier; H. J. Völk; F. Volpe; S. J. Wagner; M. Ward; A. A. Zdziarski; A. Zech

doi:10.1051/0004-6361:200809603

Discovery of VHE γ-rays from the high-frequency-peaked BL Lacertae object RGB J0152+017

F. Aharonian, A. G. Akhperjanian, U. Barres De Almeida, A. R. Bazer-Bachi, B. Behera, M. Beilicke, W. Benbow, K. Bernlöhr, C. Boisson, V. Borrel, I. Braun, E. Brion, J. Brucker, R. Bühler, T. Bulik, I. Büsching, T. Boutelier, S. Carrigan, P. M. Chadwick, R. C G ChavesL. M. Chounet, A. C. Clapson, G. Coignet, R. Cornils, L. Costamante, M. Dalton, B. Degrange, H. J. Dickinson, A. Djannati-Ataï, W. Domainko, L. O C Drury, F. Dubois, G. Dubus, J. Dyks, K. Egberts, D. Emmanoulopoulos, P. Espigat, C. Farnier, F. Feinstein, A. Fiasson, A. Förster, G. Fontaine, M. Füßling, S. Gabici, Y. A. Fallant, B. Giebels, J. F. Glicenstein, B. Glück, P. Goret, C. Hadjichristidis, D. Hauser, M. Hauser, G. Heinzelmann, G. Henri, G. Hermann, J. A. Hinton, A. Hoffmann, W. Hofmann, M. Holleran, S. Hoppe, D. Horns, A. Jacholkowska, O. C. De Jager, I. Jung, K. Katarzyński, S. Kaufmann, E. Kendziorra, M. Kerschhaggl, D. Khangulyan, B. Khélifi, D. Keogh, Nu Komin, K. Kosack, G. Lamanna, I. J. Latham, J. P. Lenain, T. Lohse, J. M. Martin, O. Martineau-Huynh, A. Marcowith, C. Masterson, D. Maurin, T. J L McComb, R. Moderski, E. Moulin, M. Naumann-Godo, M. De Naurois, D. Nedbal, D. Nekrassov, S. J. Nolan, S. Ohm, J. P. Olive, E. De Oña Wilhelmi, K. J. Orford, J. L. Osborne, M. Ostrowski, M. Panter, G. Pedaletti, G. Pelletier, P. O. Petrucci, S. Pita, G. Pühlhofer, M. Punch, A. Quirrenbach, B. C. Raubenheimer, M. Raue, S. M. Rayner, M. Renaud, F. Rieger, J. Ripken, L. Rob, S. Rosier-Lees, G. Rowell, B. Rudak, J. Ruppel, V. Sahakian, A. Santangelo, R. Schlickeiser, F. M. Schöck, R. Schröder, U. Schwanke, S. Schwarzburg, S. Schwemmer, A. Shalchi, H. Sol, D. Spangler, Stawarz, R. Steenkamp, C. Stegmann, G. Superina, P. H. Tam, J. P. Tavernet, R. Terrier, C. Van Eldik, G. Vasileiadis, C. Venter, J. P. Vialle, P. Vincent, M. Vivier, H. J. Völk, F. Volpe, S. J. Wagner, M. Ward, A. A. Zdziarski, A. Zech

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

61 Scopus citations

Abstract

Aims: The BL Lac object RGB J0152+017(z = 0.080) was predicted to be a very high-energy (VHE; $]] 100 GeV) -ray source, due to its high X-ray and radio fluxes. Our aim is to understand the radiative processes by investigating the observed emission and its production mechanism using the High Energy Stereoscopic System (HESS) experiment. Methods. We report recent observations of the BL Lac source RGB J0152+017 made in late October and November 2007 with the HESS array consisting of four imaging atmospheric Cherenkov telescopes. Contemporaneous observations were made in X-rays by the Swift and RXTE satellites, in the optical band with the ATOM telescope, and in the radio band with the Nançay Radio Telescope. Results: A signal of 173 -ray photons corresponding to a statistical significance of 6.6 was found in the data. The energy spectrum of the source can be described by a powerlaw with a spectral index of . The integral flux above 300 GeV corresponds to ~2% of the flux of the Crab nebula. The source spectral energy distribution (SED) can be described using a two-component non-thermal synchrotron self-Compton (SSC) leptonic model, except in the optical band, which is dominated by a thermal host galaxy component. The parameters that are found are very close to those found in similar SSC studies in TeV blazars. Conclusions. RGB J0152+017 is discovered as a source of VHE -rays by HESS The location of its synchrotron peak, as derived from the SED in Swift data, allows clear classification as a high-frequency-peaked BL Lac (HBL).

Original language	English (US)
Pages (from-to)	L103-L107
Journal	Astronomy and Astrophysics
Volume	481
Issue number	3
DOIs	https://doi.org/10.1051/0004-6361:200809603
State	Published - Apr 2008

Keywords

Galaxies: BL Lacertae objects: general
Galaxies: BL Lacertae objects: individual: RGB J0152+017
Galaxies: active
Gamma rays: observations

Access

10.1051/0004-6361:200809603

OpenUrl availability

Full text

Cite this

Aharonian, F., Akhperjanian, A. G., De Almeida, U. B., Bazer-Bachi, A. R., Behera, B., Beilicke, M., Benbow, W., Bernlöhr, K., Boisson, C., Borrel, V., Braun, I., Brion, E., Brucker, J., Bühler, R., Bulik, T., Büsching, I., Boutelier, T., Carrigan, S., Chadwick, P. M., ... Zech, A. (2008). Discovery of VHE γ-rays from the high-frequency-peaked BL Lacertae object RGB J0152+017. Astronomy and Astrophysics, 481(3), L103-L107. https://doi.org/10.1051/0004-6361:200809603

Aharonian, F, Akhperjanian, AG, De Almeida, UB, Bazer-Bachi, AR, Behera, B, Beilicke, M, Benbow, W, Bernlöhr, K, Boisson, C, Borrel, V, Braun, I, Brion, E, Brucker, J, Bühler, R, Bulik, T, Büsching, I, Boutelier, T, Carrigan, S, Chadwick, PM, Chaves, RCG, Chounet, LM, Clapson, AC, Coignet, G, Cornils, R, Costamante, L, Dalton, M, Degrange, B, Dickinson, HJ, Djannati-Ataï, A, Domainko, W, Drury, LOC, Dubois, F, Dubus, G, Dyks, J, Egberts, K, Emmanoulopoulos, D, Espigat, P, Farnier, C, Feinstein, F, Fiasson, A, Förster, A, Fontaine, G, Füßling, M, Gabici, S, Fallant, YA, Giebels, B, Glicenstein, JF, Glück, B, Goret, P, Hadjichristidis, C, Hauser, D, Hauser, M, Heinzelmann, G, Henri, G, Hermann, G, Hinton, JA, Hoffmann, A, Hofmann, W, Holleran, M, Hoppe, S, Horns, D, Jacholkowska, A, De Jager, OC, Jung, I, Katarzyński, K, Kaufmann, S, Kendziorra, E, Kerschhaggl, M, Khangulyan, D, Khélifi, B, Keogh, D, Komin, N, Kosack, K, Lamanna, G, Latham, IJ, Lenain, JP, Lohse, T, Martin, JM, Martineau-Huynh, O, Marcowith, A, Masterson, C, Maurin, D, McComb, TJL, Moderski, R, Moulin, E, Naumann-Godo, M, De Naurois, M, Nedbal, D, Nekrassov, D, Nolan, SJ, Ohm, S, Olive, JP, Wilhelmi, EDO, Orford, KJ, Osborne, JL, Ostrowski, M, Panter, M, Pedaletti, G, Pelletier, G, Petrucci, PO, Pita, S, Pühlhofer, G, Punch, M, Quirrenbach, A, Raubenheimer, BC, Raue, M, Rayner, SM, Renaud, M, Rieger, F, Ripken, J, Rob, L, Rosier-Lees, S, Rowell, G, Rudak, B, Ruppel, J, Sahakian, V, Santangelo, A, Schlickeiser, R, Schöck, FM, Schröder, R, Schwanke, U, Schwarzburg, S, Schwemmer, S, Shalchi, A, Sol, H, Spangler, D, Stawarz, Steenkamp, R, Stegmann, C, Superina, G, Tam, PH, Tavernet, JP, Terrier, R, Van Eldik, C, Vasileiadis, G, Venter, C, Vialle, JP, Vincent, P, Vivier, M, Völk, HJ, Volpe, F, Wagner, SJ, Ward, M, Zdziarski, AA & Zech, A 2008, 'Discovery of VHE γ-rays from the high-frequency-peaked BL Lacertae object RGB J0152+017', Astronomy and Astrophysics, vol. 481, no. 3, pp. L103-L107. https://doi.org/10.1051/0004-6361:200809603

@article{8948963757b541d7be8e0e70215bc91a,

title = "Discovery of VHE γ-rays from the high-frequency-peaked BL Lacertae object RGB J0152+017",

abstract = "Aims: The BL Lac object RGB J0152+017(z = 0.080) was predicted to be a very high-energy (VHE; $]] 100 GeV) -ray source, due to its high X-ray and radio fluxes. Our aim is to understand the radiative processes by investigating the observed emission and its production mechanism using the High Energy Stereoscopic System (HESS) experiment. Methods. We report recent observations of the BL Lac source RGB J0152+017 made in late October and November 2007 with the HESS array consisting of four imaging atmospheric Cherenkov telescopes. Contemporaneous observations were made in X-rays by the Swift and RXTE satellites, in the optical band with the ATOM telescope, and in the radio band with the Nan{\c c}ay Radio Telescope. Results: A signal of 173 -ray photons corresponding to a statistical significance of 6.6 was found in the data. The energy spectrum of the source can be described by a powerlaw with a spectral index of . The integral flux above 300 GeV corresponds to ~2% of the flux of the Crab nebula. The source spectral energy distribution (SED) can be described using a two-component non-thermal synchrotron self-Compton (SSC) leptonic model, except in the optical band, which is dominated by a thermal host galaxy component. The parameters that are found are very close to those found in similar SSC studies in TeV blazars. Conclusions. RGB J0152+017 is discovered as a source of VHE -rays by HESS The location of its synchrotron peak, as derived from the SED in Swift data, allows clear classification as a high-frequency-peaked BL Lac (HBL).",

keywords = "Galaxies: BL Lacertae objects: general, Galaxies: BL Lacertae objects: individual: RGB J0152+017, Galaxies: active, Gamma rays: observations",

author = "F. Aharonian and Akhperjanian, {A. G.} and {De Almeida}, {U. Barres} and Bazer-Bachi, {A. R.} and B. Behera and M. Beilicke and W. Benbow and K. Bernl{\"o}hr and C. Boisson and V. Borrel and I. Braun and E. Brion and J. Brucker and R. B{\"u}hler and T. Bulik and I. B{\"u}sching and T. Boutelier and S. Carrigan and Chadwick, {P. M.} and Chaves, {R. C G} and Chounet, {L. M.} and Clapson, {A. C.} and G. Coignet and R. Cornils and L. Costamante and M. Dalton and B. Degrange and Dickinson, {H. J.} and A. Djannati-Ata{\"i} and W. Domainko and Drury, {L. O C} and F. Dubois and G. Dubus and J. Dyks and K. Egberts and D. Emmanoulopoulos and P. Espigat and C. Farnier and F. Feinstein and A. Fiasson and A. F{\"o}rster and G. Fontaine and M. F{\"u}{\ss}ling and S. Gabici and Fallant, {Y. A.} and B. Giebels and Glicenstein, {J. F.} and B. Gl{\"u}ck and P. Goret and C. Hadjichristidis and D. Hauser and M. Hauser and G. Heinzelmann and G. Henri and G. Hermann and Hinton, {J. A.} and A. Hoffmann and W. Hofmann and M. Holleran and S. Hoppe and D. Horns and A. Jacholkowska and {De Jager}, {O. C.} and I. Jung and K. Katarzy{\'n}ski and S. Kaufmann and E. Kendziorra and M. Kerschhaggl and D. Khangulyan and B. Kh{\'e}lifi and D. Keogh and Nu Komin and K. Kosack and G. Lamanna and Latham, {I. J.} and Lenain, {J. P.} and T. Lohse and Martin, {J. M.} and O. Martineau-Huynh and A. Marcowith and C. Masterson and D. Maurin and McComb, {T. J L} and R. Moderski and E. Moulin and M. Naumann-Godo and {De Naurois}, M. and D. Nedbal and D. Nekrassov and Nolan, {S. J.} and S. Ohm and Olive, {J. P.} and Wilhelmi, {E. De O{\~n}a} and Orford, {K. J.} and Osborne, {J. L.} and M. Ostrowski and M. Panter and G. Pedaletti and G. Pelletier and Petrucci, {P. O.} and S. Pita and G. P{\"u}hlhofer and M. Punch and A. Quirrenbach and Raubenheimer, {B. C.} and M. Raue and Rayner, {S. M.} and M. Renaud and F. Rieger and J. Ripken and L. Rob and S. Rosier-Lees and G. Rowell and B. Rudak and J. Ruppel and V. Sahakian and A. Santangelo and R. Schlickeiser and Sch{\"o}ck, {F. M.} and R. Schr{\"o}der and U. Schwanke and S. Schwarzburg and S. Schwemmer and A. Shalchi and H. Sol and D. Spangler and Stawarz and R. Steenkamp and C. Stegmann and G. Superina and Tam, {P. H.} and Tavernet, {J. P.} and R. Terrier and {Van Eldik}, C. and G. Vasileiadis and C. Venter and Vialle, {J. P.} and P. Vincent and M. Vivier and V{\"o}lk, {H. J.} and F. Volpe and Wagner, {S. J.} and M. Ward and Zdziarski, {A. A.} and A. Zech",

year = "2008",

month = apr,

doi = "10.1051/0004-6361:200809603",

language = "English (US)",

volume = "481",

pages = "L103--L107",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

number = "3",

}

TY - JOUR

T1 - Discovery of VHE γ-rays from the high-frequency-peaked BL Lacertae object RGB J0152+017

AU - Aharonian, F.

AU - Akhperjanian, A. G.

AU - De Almeida, U. Barres

AU - Bazer-Bachi, A. R.

AU - Behera, B.

AU - Beilicke, M.

AU - Benbow, W.

AU - Bernlöhr, K.

AU - Boisson, C.

AU - Borrel, V.

AU - Braun, I.

AU - Brion, E.

AU - Brucker, J.

AU - Bühler, R.

AU - Bulik, T.

AU - Büsching, I.

AU - Boutelier, T.

AU - Carrigan, S.

AU - Chadwick, P. M.

AU - Chaves, R. C G

AU - Chounet, L. M.

AU - Clapson, A. C.

AU - Coignet, G.

AU - Cornils, R.

AU - Costamante, L.

AU - Dalton, M.

AU - Degrange, B.

AU - Dickinson, H. J.

AU - Djannati-Ataï, A.

AU - Domainko, W.

AU - Drury, L. O C

AU - Dubois, F.

AU - Dubus, G.

AU - Dyks, J.

AU - Egberts, K.

AU - Emmanoulopoulos, D.

AU - Espigat, P.

AU - Farnier, C.

AU - Feinstein, F.

AU - Fiasson, A.

AU - Förster, A.

AU - Fontaine, G.

AU - Füßling, M.

AU - Gabici, S.

AU - Fallant, Y. A.

AU - Giebels, B.

AU - Glicenstein, J. F.

AU - Glück, B.

AU - Goret, P.

AU - Hadjichristidis, C.

AU - Hauser, D.

AU - Hauser, M.

AU - Heinzelmann, G.

AU - Henri, G.

AU - Hermann, G.

AU - Hinton, J. A.

AU - Hoffmann, A.

AU - Hofmann, W.

AU - Holleran, M.

AU - Hoppe, S.

AU - Horns, D.

AU - Jacholkowska, A.

AU - De Jager, O. C.

AU - Jung, I.

AU - Katarzyński, K.

AU - Kaufmann, S.

AU - Kendziorra, E.

AU - Kerschhaggl, M.

AU - Khangulyan, D.

AU - Khélifi, B.

AU - Keogh, D.

AU - Komin, Nu

AU - Kosack, K.

AU - Lamanna, G.

AU - Latham, I. J.

AU - Lenain, J. P.

AU - Lohse, T.

AU - Martin, J. M.

AU - Martineau-Huynh, O.

AU - Marcowith, A.

AU - Masterson, C.

AU - Maurin, D.

AU - McComb, T. J L

AU - Moderski, R.

AU - Moulin, E.

AU - Naumann-Godo, M.

AU - De Naurois, M.

AU - Nedbal, D.

AU - Nekrassov, D.

AU - Nolan, S. J.

AU - Ohm, S.

AU - Olive, J. P.

AU - Wilhelmi, E. De Oña

AU - Orford, K. J.

AU - Osborne, J. L.

AU - Ostrowski, M.

AU - Panter, M.

AU - Pedaletti, G.

AU - Pelletier, G.

AU - Petrucci, P. O.

AU - Pita, S.

AU - Pühlhofer, G.

AU - Punch, M.

AU - Quirrenbach, A.

AU - Raubenheimer, B. C.

AU - Raue, M.

AU - Rayner, S. M.

AU - Renaud, M.

AU - Rieger, F.

AU - Ripken, J.

AU - Rob, L.

AU - Rosier-Lees, S.

AU - Rowell, G.

AU - Rudak, B.

AU - Ruppel, J.

AU - Sahakian, V.

AU - Santangelo, A.

AU - Schlickeiser, R.

AU - Schöck, F. M.

AU - Schröder, R.

AU - Schwanke, U.

AU - Schwarzburg, S.

AU - Schwemmer, S.

AU - Shalchi, A.

AU - Sol, H.

AU - Spangler, D.

AU - Stawarz,

AU - Steenkamp, R.

AU - Stegmann, C.

AU - Superina, G.

AU - Tam, P. H.

AU - Tavernet, J. P.

AU - Terrier, R.

AU - Van Eldik, C.

AU - Vasileiadis, G.

AU - Venter, C.

AU - Vialle, J. P.

AU - Vincent, P.

AU - Vivier, M.

AU - Völk, H. J.

AU - Volpe, F.

AU - Wagner, S. J.

AU - Ward, M.

AU - Zdziarski, A. A.

AU - Zech, A.

PY - 2008/4

Y1 - 2008/4

N2 - Aims: The BL Lac object RGB J0152+017(z = 0.080) was predicted to be a very high-energy (VHE; $]] 100 GeV) -ray source, due to its high X-ray and radio fluxes. Our aim is to understand the radiative processes by investigating the observed emission and its production mechanism using the High Energy Stereoscopic System (HESS) experiment. Methods. We report recent observations of the BL Lac source RGB J0152+017 made in late October and November 2007 with the HESS array consisting of four imaging atmospheric Cherenkov telescopes. Contemporaneous observations were made in X-rays by the Swift and RXTE satellites, in the optical band with the ATOM telescope, and in the radio band with the Nançay Radio Telescope. Results: A signal of 173 -ray photons corresponding to a statistical significance of 6.6 was found in the data. The energy spectrum of the source can be described by a powerlaw with a spectral index of . The integral flux above 300 GeV corresponds to ~2% of the flux of the Crab nebula. The source spectral energy distribution (SED) can be described using a two-component non-thermal synchrotron self-Compton (SSC) leptonic model, except in the optical band, which is dominated by a thermal host galaxy component. The parameters that are found are very close to those found in similar SSC studies in TeV blazars. Conclusions. RGB J0152+017 is discovered as a source of VHE -rays by HESS The location of its synchrotron peak, as derived from the SED in Swift data, allows clear classification as a high-frequency-peaked BL Lac (HBL).

AB - Aims: The BL Lac object RGB J0152+017(z = 0.080) was predicted to be a very high-energy (VHE; $]] 100 GeV) -ray source, due to its high X-ray and radio fluxes. Our aim is to understand the radiative processes by investigating the observed emission and its production mechanism using the High Energy Stereoscopic System (HESS) experiment. Methods. We report recent observations of the BL Lac source RGB J0152+017 made in late October and November 2007 with the HESS array consisting of four imaging atmospheric Cherenkov telescopes. Contemporaneous observations were made in X-rays by the Swift and RXTE satellites, in the optical band with the ATOM telescope, and in the radio band with the Nançay Radio Telescope. Results: A signal of 173 -ray photons corresponding to a statistical significance of 6.6 was found in the data. The energy spectrum of the source can be described by a powerlaw with a spectral index of . The integral flux above 300 GeV corresponds to ~2% of the flux of the Crab nebula. The source spectral energy distribution (SED) can be described using a two-component non-thermal synchrotron self-Compton (SSC) leptonic model, except in the optical band, which is dominated by a thermal host galaxy component. The parameters that are found are very close to those found in similar SSC studies in TeV blazars. Conclusions. RGB J0152+017 is discovered as a source of VHE -rays by HESS The location of its synchrotron peak, as derived from the SED in Swift data, allows clear classification as a high-frequency-peaked BL Lac (HBL).

KW - Galaxies: BL Lacertae objects: general

KW - Galaxies: BL Lacertae objects: individual: RGB J0152+017

KW - Galaxies: active

KW - Gamma rays: observations

UR - http://www.scopus.com/inward/record.url?scp=41649093132&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=41649093132&partnerID=8YFLogxK

U2 - 10.1051/0004-6361:200809603

DO - 10.1051/0004-6361:200809603

M3 - Article

AN - SCOPUS:41649093132

SN - 0004-6361

VL - 481

SP - L103-L107

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 3

ER -

Discovery of VHE γ-rays from the high-frequency-peaked BL Lacertae object RGB J0152+017

Abstract

Keywords

Access

OpenUrl availability

Other files and links

Fingerprint

Cite this