First detection of VHE γ-rays from SN 1006 by HESS

F. Acero; F. Aharonian; A. G. Akhperjanian; G. Anton; U. Barres De Almeida; A. R. Bazer-Bachi; Y. Becherini; B. Behera; M. Beilicke; K. Bernlöhr; A. Bochow; C. Boisson; J. Bolmont; V. Borrel; J. Brucker; F. Brun; P. Brun; R. Bühler; T. Bulik; I. Büsching; T. Boutelier; P. M. Chadwick; A. Charbonnier; R. C G Chaves; A. Cheesebrough; J. Conrad; L. M. Chounet; A. C. Clapson; G. Coignet; M. Dalton; M. K. Daniel; I. D. Davids; B. Degrange; C. Deil; H. J. Dickinson; A. Djannati-Ataï; W. Domainko; L. O C Drury; F. Dubois; G. Dubus; J. Dyks; M. Dyrda; K. Egberts; P. Eger; P. Espigat; L. Fallon; C. Farnier; S. Fegan; F. Feinstein; A. Fiasson; A. Förster; G. Fontaine; M. Füßling; S. Gabici; Y. A. Gallant; L. Gérard; D. Gerbig; B. Giebels; J. F. Glicenstein; B. Glück; P. Goret; D. Göring; D. Hauser; M. Hauser; S. Heinz; G. Heinzelmann; G. Henri; G. Hermann; J. A. Hinton; A. Hoffmann; W. Hofmann; P. Hofverberg; M. Holleran; S. Hoppe; D. Horns; A. Jacholkowska; O. C. De Jager; C. Jahn; I. Jung; K. Katarzyński; U. Katz; S. Kaufmann; M. Kerschhaggl; D. Khangulyan; B. Khélifi; D. Keogh; D. Klochkov; W. Kluzniak; T. Kneiske; Nu Komin; K. Kosack; R. Kossakowski; G. Lamanna; M. Lemoine-Goumard; J. P. Lenain; T. Lohse; V. Marandon; A. Marcowith; J. Masbou; D. Maurin; T. J L McComb; M. C. Medina; J. Méhault; R. Moderski; E. Moulin; M. Naumann-Godo; M. De Naurois; D. Nedbal; D. Nekrassov; B. Nicholas; J. Niemiec; S. J. Nolan; S. Ohm; J. F. Olive; E. De Oña Wilhelmi; K. J. Orford; M. Ostrowski; M. Panter; M. Paz Arribas; G. Pedaletti; G. Pelletier; P. O. Petrucci; S. Pita; G. Pühlhofer; M. Punch; A. Quirrenbach; B. C. Raubenheimer; M. Raue; S. M. Rayner; O. Reimer; M. Renaud; R. De Los Reyes; F. Rieger; J. Ripken; L. Rob; S. Rosier-Lees; G. Rowell; B. Rudak; C. B. Rulten; J. Ruppel; F. Ryde; V. Sahakian; A. Santangelo; R. Schlickeiser; F. M. Schöck; A. Schönwald; U. Schwanke; S. Schwarzburg; S. Schwemmer; A. Shalchi; I. Sushch; M. Sikora; J. L. Skilton; H. Sol; Stawarz; R. Steenkamp; C. Stegmann; F. Stinzing; G. Superina; A. Szostek; P. H. Tam; J. P. Tavernet; R. Terrier; O. Tibolla; M. Tluczykont; C. Van Eldik; G. Vasileiadis; C. Venter; L. Venter; J. P. Vialle; P. Vincent; J. Vink; M. Vivier; H. J. Völk; F. Volpe; S. Vorobiov; S. J. Wagner; M. Ward; A. A. Zdziarski; A. Zech

doi:10.1051/0004-6361/200913916

First detection of VHE γ-rays from SN 1006 by HESS

F. Acero, F. Aharonian, A. G. Akhperjanian, G. Anton, U. Barres De Almeida, A. R. Bazer-Bachi, Y. Becherini, B. Behera, M. Beilicke, K. Bernlöhr, A. Bochow, C. Boisson, J. Bolmont, V. Borrel, J. Brucker, F. Brun, P. Brun, R. Bühler, T. Bulik, I. BüschingT. Boutelier, P. M. Chadwick, A. Charbonnier, R. C G Chaves, A. Cheesebrough, J. Conrad, L. M. Chounet, A. C. Clapson, G. Coignet, M. Dalton, M. K. Daniel, I. D. Davids, B. Degrange, C. Deil, H. J. Dickinson, A. Djannati-Ataï, W. Domainko, L. O C Drury, F. Dubois, G. Dubus, J. Dyks, M. Dyrda, K. Egberts, P. Eger, P. Espigat, L. Fallon, C. Farnier, S. Fegan, F. Feinstein, A. Fiasson, A. Förster, G. Fontaine, M. Füßling, S. Gabici, Y. A. Gallant, L. Gérard, D. Gerbig, B. Giebels, J. F. Glicenstein, B. Glück, P. Goret, D. Göring, D. Hauser, M. Hauser, S. Heinz, G. Heinzelmann, G. Henri, G. Hermann, J. A. Hinton, A. Hoffmann, W. Hofmann, P. Hofverberg, M. Holleran, S. Hoppe, D. Horns, A. Jacholkowska, O. C. De Jager, C. Jahn, I. Jung, K. Katarzyński, U. Katz, S. Kaufmann, M. Kerschhaggl, D. Khangulyan, B. Khélifi, D. Keogh, D. Klochkov, W. Kluzniak, T. Kneiske, Nu Komin, K. Kosack, R. Kossakowski, G. Lamanna, M. Lemoine-Goumard, J. P. Lenain, T. Lohse, V. Marandon, A. Marcowith, J. Masbou, D. Maurin, T. J L McComb, M. C. Medina, J. Méhault, R. Moderski, E. Moulin, M. Naumann-Godo, M. De Naurois, D. Nedbal, D. Nekrassov, B. Nicholas, J. Niemiec, S. J. Nolan, S. Ohm, J. F. Olive, E. De Oña Wilhelmi, K. J. Orford, M. Ostrowski, M. Panter, M. Paz Arribas, G. Pedaletti, G. Pelletier, P. O. Petrucci, S. Pita, G. Pühlhofer, M. Punch, A. Quirrenbach, B. C. Raubenheimer, M. Raue, S. M. Rayner, O. Reimer, M. Renaud, R. De Los Reyes, F. Rieger, J. Ripken, L. Rob, S. Rosier-Lees, G. Rowell, B. Rudak, C. B. Rulten, J. Ruppel, F. Ryde, V. Sahakian, A. Santangelo, R. Schlickeiser, F. M. Schöck, A. Schönwald, U. Schwanke, S. Schwarzburg, S. Schwemmer, A. Shalchi, I. Sushch, M. Sikora, J. L. Skilton, H. Sol, Stawarz, R. Steenkamp, C. Stegmann, F. Stinzing, G. Superina, A. Szostek, P. H. Tam, J. P. Tavernet, R. Terrier, O. Tibolla, M. Tluczykont, C. Van Eldik, G. Vasileiadis, C. Venter, L. Venter, J. P. Vialle, P. Vincent, J. Vink, M. Vivier, H. J. Völk, F. Volpe, S. Vorobiov, S. J. Wagner, M. Ward, A. A. Zdziarski, A. Zech

Physics and Astronomy (Twin Cities)

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

154 Scopus citations

Abstract

Aims. Recent theoretical predictions of the lowest very high energy (VHE) luminosity of SN 1006 are only a factor 5 below the previously published HESS upper limit, thus motivating further in-depth observations of this source. Methods. Deep observations at VHE energies (above 100 GeV) were carried out with the high energy stereoscopic system (HESS) of Cherenkov Telescopes from 2003 to 2008. More than 100 h of data have been collected and subjected to an improved analysis procedure. Results. Observations resulted in the detection of VHE γ-rays from SN 1006. The measured γ-ray spectrum is compatible with a power-law, the flux is of the order of 1% of that detected from the Crab Nebula, and is thus consistent with the previously established HESS upper limit. The source exhibits a bipolar morphology, which is strongly correlated with non-thermal X-rays. Conclusions. Because the thickness of the VHE-shell is compatible with emission from a thin rim, particle acceleration in shock waves is likely to be the origin of the γ-ray signal. The measured flux level can be accounted for by inverse Compton emission, but a mixed scenario that includes leptonic and hadronic components and takes into account the ambient matter density inferred from observations also leads to a satisfactory description of the multi-wavelength spectrum.

Original language	English (US)
Article number	A62
Journal	Astronomy and Astrophysics
Volume	516
Issue number	6
DOIs	https://doi.org/10.1051/0004-6361/200913916
State	Published - Jun 28 2010

Keywords

Gamma rays: stars
Supernovae: individual: SN 1006 (G327.6+14.6)

Publisher link

10.1051/0004-6361/200913916

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Acero, F., Aharonian, F., Akhperjanian, A. G., Anton, G., Barres De Almeida, U., Bazer-Bachi, A. R., Becherini, Y., Behera, B., Beilicke, M., Bernlöhr, K., Bochow, A., Boisson, C., Bolmont, J., Borrel, V., Brucker, J., Brun, F., Brun, P., Bühler, R., Bulik, T., ... Zech, A. (2010). First detection of VHE γ-rays from SN 1006 by HESS. Astronomy and Astrophysics, 516(6), Article A62. https://doi.org/10.1051/0004-6361/200913916

Acero, F, Aharonian, F, Akhperjanian, AG, Anton, G, Barres De Almeida, U, Bazer-Bachi, AR, Becherini, Y, Behera, B, Beilicke, M, Bernlöhr, K, Bochow, A, Boisson, C, Bolmont, J, Borrel, V, Brucker, J, Brun, F, Brun, P, Bühler, R, Bulik, T, Büsching, I, Boutelier, T, Chadwick, PM, Charbonnier, A, Chaves, RCG, Cheesebrough, A, Conrad, J, Chounet, LM, Clapson, AC, Coignet, G, Dalton, M, Daniel, MK, Davids, ID, Degrange, B, Deil, C, Dickinson, HJ, Djannati-Ataï, A, Domainko, W, Drury, LOC, Dubois, F, Dubus, G, Dyks, J, Dyrda, M, Egberts, K, Eger, P, Espigat, P, Fallon, L, Farnier, C, Fegan, S, Feinstein, F, Fiasson, A, Förster, A, Fontaine, G, Füßling, M, Gabici, S, Gallant, YA, Gérard, L, Gerbig, D, Giebels, B, Glicenstein, JF, Glück, B, Goret, P, Göring, D, Hauser, D, Hauser, M, Heinz, S, Heinzelmann, G, Henri, G, Hermann, G, Hinton, JA, Hoffmann, A, Hofmann, W, Hofverberg, P, Holleran, M, Hoppe, S, Horns, D, Jacholkowska, A, De Jager, OC, Jahn, C, Jung, I, Katarzyński, K, Katz, U, Kaufmann, S, Kerschhaggl, M, Khangulyan, D, Khélifi, B, Keogh, D, Klochkov, D, Kluzniak, W, Kneiske, T, Komin, N, Kosack, K, Kossakowski, R, Lamanna, G, Lemoine-Goumard, M, Lenain, JP, Lohse, T, Marandon, V, Marcowith, A, Masbou, J, Maurin, D, McComb, TJL, Medina, MC, Méhault, J, Moderski, R, Moulin, E, Naumann-Godo, M, De Naurois, M, Nedbal, D, Nekrassov, D, Nicholas, B, Niemiec, J, Nolan, SJ, Ohm, S, Olive, JF, De Oña Wilhelmi, E, Orford, KJ, Ostrowski, M, Panter, M, Paz Arribas, M, Pedaletti, G, Pelletier, G, Petrucci, PO, Pita, S, Pühlhofer, G, Punch, M, Quirrenbach, A, Raubenheimer, BC, Raue, M, Rayner, SM, Reimer, O, Renaud, M, De Los Reyes, R, Rieger, F, Ripken, J, Rob, L, Rosier-Lees, S, Rowell, G, Rudak, B, Rulten, CB, Ruppel, J, Ryde, F, Sahakian, V, Santangelo, A, Schlickeiser, R, Schöck, FM, Schönwald, A, Schwanke, U, Schwarzburg, S, Schwemmer, S, Shalchi, A, Sushch, I, Sikora, M, Skilton, JL, Sol, H, Stawarz, Steenkamp, R, Stegmann, C, Stinzing, F, Superina, G, Szostek, A, Tam, PH, Tavernet, JP, Terrier, R, Tibolla, O, Tluczykont, M, Van Eldik, C, Vasileiadis, G, Venter, C, Venter, L, Vialle, JP, Vincent, P, Vink, J, Vivier, M, Völk, HJ, Volpe, F, Vorobiov, S, Wagner, SJ, Ward, M, Zdziarski, AA & Zech, A 2010, 'First detection of VHE γ-rays from SN 1006 by HESS', Astronomy and Astrophysics, vol. 516, no. 6, A62. https://doi.org/10.1051/0004-6361/200913916

@article{3b2d43290eae4c5a835ef14d12dd92c1,

title = "First detection of VHE γ-rays from SN 1006 by HESS",

abstract = "Aims. Recent theoretical predictions of the lowest very high energy (VHE) luminosity of SN 1006 are only a factor 5 below the previously published HESS upper limit, thus motivating further in-depth observations of this source. Methods. Deep observations at VHE energies (above 100 GeV) were carried out with the high energy stereoscopic system (HESS) of Cherenkov Telescopes from 2003 to 2008. More than 100 h of data have been collected and subjected to an improved analysis procedure. Results. Observations resulted in the detection of VHE γ-rays from SN 1006. The measured γ-ray spectrum is compatible with a power-law, the flux is of the order of 1% of that detected from the Crab Nebula, and is thus consistent with the previously established HESS upper limit. The source exhibits a bipolar morphology, which is strongly correlated with non-thermal X-rays. Conclusions. Because the thickness of the VHE-shell is compatible with emission from a thin rim, particle acceleration in shock waves is likely to be the origin of the γ-ray signal. The measured flux level can be accounted for by inverse Compton emission, but a mixed scenario that includes leptonic and hadronic components and takes into account the ambient matter density inferred from observations also leads to a satisfactory description of the multi-wavelength spectrum.",

keywords = "Gamma rays: stars, Supernovae: individual: SN 1006 (G327.6+14.6)",

author = "F. Acero and F. Aharonian and Akhperjanian, {A. G.} and G. Anton and {Barres De Almeida}, U. and Bazer-Bachi, {A. R.} and Y. Becherini and B. Behera and M. Beilicke and K. Bernl{\"o}hr and A. Bochow and C. Boisson and J. Bolmont and V. Borrel and J. Brucker and F. Brun and P. Brun and R. B{\"u}hler and T. Bulik and I. B{\"u}sching and T. Boutelier and Chadwick, {P. M.} and A. Charbonnier and Chaves, {R. C G} and A. Cheesebrough and J. Conrad and Chounet, {L. M.} and Clapson, {A. C.} and G. Coignet and M. Dalton and Daniel, {M. K.} and Davids, {I. D.} and B. Degrange and C. Deil 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 M. Dyrda and K. Egberts and P. Eger and P. Espigat and L. Fallon and C. Farnier and S. Fegan and F. Feinstein and A. Fiasson and A. F{\"o}rster and G. Fontaine and M. F{\"u}{\ss}ling and S. Gabici and Gallant, {Y. A.} and L. G{\'e}rard and D. Gerbig and B. Giebels and Glicenstein, {J. F.} and B. Gl{\"u}ck and P. Goret and D. G{\"o}ring and D. Hauser and M. Hauser and S. Heinz and G. Heinzelmann and G. Henri and G. Hermann and Hinton, {J. A.} and A. Hoffmann and W. Hofmann and P. Hofverberg and M. Holleran and S. Hoppe and D. Horns and A. Jacholkowska and {De Jager}, {O. C.} and C. Jahn and I. Jung and K. Katarzy{\'n}ski and U. Katz and S. Kaufmann and M. Kerschhaggl and D. Khangulyan and B. Kh{\'e}lifi and D. Keogh and D. Klochkov and W. Kluzniak and T. Kneiske and Nu Komin and K. Kosack and R. Kossakowski and G. Lamanna and M. Lemoine-Goumard and Lenain, {J. P.} and T. Lohse and V. Marandon and A. Marcowith and J. Masbou and D. Maurin and McComb, {T. J L} and Medina, {M. C.} and J. M{\'e}hault and R. Moderski and E. Moulin and M. Naumann-Godo and {De Naurois}, M. and D. Nedbal and D. Nekrassov and B. Nicholas and J. Niemiec and Nolan, {S. J.} and S. Ohm and Olive, {J. F.} and {De O{\~n}a Wilhelmi}, E. and Orford, {K. J.} and M. Ostrowski and M. Panter and {Paz Arribas}, M. 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 O. Reimer and M. Renaud and {De Los Reyes}, R. and F. Rieger and J. Ripken and L. Rob and S. Rosier-Lees and G. Rowell and B. Rudak and Rulten, {C. B.} and J. Ruppel and F. Ryde and V. Sahakian and A. Santangelo and R. Schlickeiser and Sch{\"o}ck, {F. M.} and A. Sch{\"o}nwald and U. Schwanke and S. Schwarzburg and S. Schwemmer and A. Shalchi and I. Sushch and M. Sikora and Skilton, {J. L.} and H. Sol and Stawarz and R. Steenkamp and C. Stegmann and F. Stinzing and G. Superina and A. Szostek and Tam, {P. H.} and Tavernet, {J. P.} and R. Terrier and O. Tibolla and M. Tluczykont and {Van Eldik}, C. and G. Vasileiadis and C. Venter and L. Venter and Vialle, {J. P.} and P. Vincent and J. Vink and M. Vivier and V{\"o}lk, {H. J.} and F. Volpe and S. Vorobiov and Wagner, {S. J.} and M. Ward and Zdziarski, {A. A.} and A. Zech",

year = "2010",

month = jun,

day = "28",

doi = "10.1051/0004-6361/200913916",

language = "English (US)",

volume = "516",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

number = "6",

}

TY - JOUR

T1 - First detection of VHE γ-rays from SN 1006 by HESS

AU - Acero, F.

AU - Aharonian, F.

AU - Akhperjanian, A. G.

AU - Anton, G.

AU - Barres De Almeida, U.

AU - Bazer-Bachi, A. R.

AU - Becherini, Y.

AU - Behera, B.

AU - Beilicke, M.

AU - Bernlöhr, K.

AU - Bochow, A.

AU - Boisson, C.

AU - Bolmont, J.

AU - Borrel, V.

AU - Brucker, J.

AU - Brun, F.

AU - Brun, P.

AU - Bühler, R.

AU - Bulik, T.

AU - Büsching, I.

AU - Boutelier, T.

AU - Chadwick, P. M.

AU - Charbonnier, A.

AU - Chaves, R. C G

AU - Cheesebrough, A.

AU - Conrad, J.

AU - Chounet, L. M.

AU - Clapson, A. C.

AU - Coignet, G.

AU - Dalton, M.

AU - Daniel, M. K.

AU - Davids, I. D.

AU - Degrange, B.

AU - Deil, C.

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 - Dyrda, M.

AU - Egberts, K.

AU - Eger, P.

AU - Espigat, P.

AU - Fallon, L.

AU - Farnier, C.

AU - Fegan, S.

AU - Feinstein, F.

AU - Fiasson, A.

AU - Förster, A.

AU - Fontaine, G.

AU - Füßling, M.

AU - Gabici, S.

AU - Gallant, Y. A.

AU - Gérard, L.

AU - Gerbig, D.

AU - Giebels, B.

AU - Glicenstein, J. F.

AU - Glück, B.

AU - Goret, P.

AU - Göring, D.

AU - Hauser, D.

AU - Hauser, M.

AU - Heinz, S.

AU - Heinzelmann, G.

AU - Henri, G.

AU - Hermann, G.

AU - Hinton, J. A.

AU - Hoffmann, A.

AU - Hofmann, W.

AU - Hofverberg, P.

AU - Holleran, M.

AU - Hoppe, S.

AU - Horns, D.

AU - Jacholkowska, A.

AU - De Jager, O. C.

AU - Jahn, C.

AU - Jung, I.

AU - Katarzyński, K.

AU - Katz, U.

AU - Kaufmann, S.

AU - Kerschhaggl, M.

AU - Khangulyan, D.

AU - Khélifi, B.

AU - Keogh, D.

AU - Klochkov, D.

AU - Kluzniak, W.

AU - Kneiske, T.

AU - Komin, Nu

AU - Kosack, K.

AU - Kossakowski, R.

AU - Lamanna, G.

AU - Lemoine-Goumard, M.

AU - Lenain, J. P.

AU - Lohse, T.

AU - Marandon, V.

AU - Marcowith, A.

AU - Masbou, J.

AU - Maurin, D.

AU - McComb, T. J L

AU - Medina, M. C.

AU - Méhault, J.

AU - Moderski, R.

AU - Moulin, E.

AU - Naumann-Godo, M.

AU - De Naurois, M.

AU - Nedbal, D.

AU - Nekrassov, D.

AU - Nicholas, B.

AU - Niemiec, J.

AU - Nolan, S. J.

AU - Ohm, S.

AU - Olive, J. F.

AU - De Oña Wilhelmi, E.

AU - Orford, K. J.

AU - Ostrowski, M.

AU - Panter, M.

AU - Paz Arribas, 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 - Reimer, O.

AU - Renaud, M.

AU - De Los Reyes, R.

AU - Rieger, F.

AU - Ripken, J.

AU - Rob, L.

AU - Rosier-Lees, S.

AU - Rowell, G.

AU - Rudak, B.

AU - Rulten, C. B.

AU - Ruppel, J.

AU - Ryde, F.

AU - Sahakian, V.

AU - Santangelo, A.

AU - Schlickeiser, R.

AU - Schöck, F. M.

AU - Schönwald, A.

AU - Schwanke, U.

AU - Schwarzburg, S.

AU - Schwemmer, S.

AU - Shalchi, A.

AU - Sushch, I.

AU - Sikora, M.

AU - Skilton, J. L.

AU - Sol, H.

AU - Stawarz,

AU - Steenkamp, R.

AU - Stegmann, C.

AU - Stinzing, F.

AU - Superina, G.

AU - Szostek, A.

AU - Tam, P. H.

AU - Tavernet, J. P.

AU - Terrier, R.

AU - Tibolla, O.

AU - Tluczykont, M.

AU - Van Eldik, C.

AU - Vasileiadis, G.

AU - Venter, C.

AU - Venter, L.

AU - Vialle, J. P.

AU - Vincent, P.

AU - Vink, J.

AU - Vivier, M.

AU - Völk, H. J.

AU - Volpe, F.

AU - Vorobiov, S.

AU - Wagner, S. J.

AU - Ward, M.

AU - Zdziarski, A. A.

AU - Zech, A.

PY - 2010/6/28

Y1 - 2010/6/28

N2 - Aims. Recent theoretical predictions of the lowest very high energy (VHE) luminosity of SN 1006 are only a factor 5 below the previously published HESS upper limit, thus motivating further in-depth observations of this source. Methods. Deep observations at VHE energies (above 100 GeV) were carried out with the high energy stereoscopic system (HESS) of Cherenkov Telescopes from 2003 to 2008. More than 100 h of data have been collected and subjected to an improved analysis procedure. Results. Observations resulted in the detection of VHE γ-rays from SN 1006. The measured γ-ray spectrum is compatible with a power-law, the flux is of the order of 1% of that detected from the Crab Nebula, and is thus consistent with the previously established HESS upper limit. The source exhibits a bipolar morphology, which is strongly correlated with non-thermal X-rays. Conclusions. Because the thickness of the VHE-shell is compatible with emission from a thin rim, particle acceleration in shock waves is likely to be the origin of the γ-ray signal. The measured flux level can be accounted for by inverse Compton emission, but a mixed scenario that includes leptonic and hadronic components and takes into account the ambient matter density inferred from observations also leads to a satisfactory description of the multi-wavelength spectrum.

AB - Aims. Recent theoretical predictions of the lowest very high energy (VHE) luminosity of SN 1006 are only a factor 5 below the previously published HESS upper limit, thus motivating further in-depth observations of this source. Methods. Deep observations at VHE energies (above 100 GeV) were carried out with the high energy stereoscopic system (HESS) of Cherenkov Telescopes from 2003 to 2008. More than 100 h of data have been collected and subjected to an improved analysis procedure. Results. Observations resulted in the detection of VHE γ-rays from SN 1006. The measured γ-ray spectrum is compatible with a power-law, the flux is of the order of 1% of that detected from the Crab Nebula, and is thus consistent with the previously established HESS upper limit. The source exhibits a bipolar morphology, which is strongly correlated with non-thermal X-rays. Conclusions. Because the thickness of the VHE-shell is compatible with emission from a thin rim, particle acceleration in shock waves is likely to be the origin of the γ-ray signal. The measured flux level can be accounted for by inverse Compton emission, but a mixed scenario that includes leptonic and hadronic components and takes into account the ambient matter density inferred from observations also leads to a satisfactory description of the multi-wavelength spectrum.

KW - Gamma rays: stars

KW - Supernovae: individual: SN 1006 (G327.6+14.6)

UR - http://www.scopus.com/inward/record.url?scp=77954045804&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77954045804&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/200913916

DO - 10.1051/0004-6361/200913916

M3 - Article

AN - SCOPUS:77954045804

SN - 0004-6361

VL - 516

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 6

M1 - A62

ER -

First detection of VHE γ-rays from SN 1006 by HESS

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