Detection of very-high-energy γ-ray emission from the vicinity of PSRB1706-44 and G343.1-2.3 with H.E.S.S.

A. Abramowski; F. Acero; F. Aharonian; A. G. Akhperjanian; G. Anton; A. Barnacka; U. Barres De Almeida; A. R. Bazer-Bachi; Y. Becherini; J. Becker; B. Behera; K. Bernlohr; A. Bochow; C. Boisson; J. Bolmont; P. Bordas; V. Borre; J. Brucker; F. Brun; P. Brun; T. Bulik; I. Busching; S. Carrigan; S. Casanova; M. Cerruti; 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. Danie; I. D. Davids; B. Degrange; C. Deil; H. J. Dickinson; A. Djannati-Atai; 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; M. V. Fernandes; A. Fiasson; A. Forster; G. Fontaine; M. Fusling; S. Gabici; Y. A. Gallant; H. Gast; L. Gerard; D. Gerbig; B. Giebels; J. F. Glicenstein; B. Gluck; P. Goret; D. Goring; J. D. Hague; D. Hampf; 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; M. Jamrozy; I. Jung; M. A. Kastendieck; K. Katarzyński; U. Katz; S. Kaufmann; M. Kerschhagg; D. Khangulyan; B. Khelifi; D. Keogh; W. Kluźzniak; T. Kneiske; Nu Komin; K. Kosack; R. Kossakowski; H. Laffont; G. Lamanna; M. Lemoine-Goumard; J. P. Lenain; D. Lennarz; T. Lohse; A. Lopatin; C. C. Lu; V. Marandon; A. Marcowith; J. Masbou; D. Maurin; N. Maxted; T. J L McComb; M. C. Medina; J. Mehault; R. Moderski; E. Moulin; M. Naumann-Godo; M. De Naurois; D. Nedbal; D. Nekrassov; N. Nguyen; B. Nicholas; J. Niemiec; S. J. Nolan; S. Ohm; J. F. Olive; E. Ona De Wilhelmi; B. Opitz; M. Ostrowski; M. Panter; M. Paz Arribas; G. Pedaletti; G. Pelletier; P. O. Petrucci; S. Pita; G. Puhlhofer; M. Punch; A. Quirrenbach; M. Raue; S. M. Rayner; 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; J. Ruppel; F. Ryde; V. Sahakian; A. Santangelo; R. Schlickeiser; F. M. Schock; A. Schonwald; U. Schwanke; S. Schwarzburg; S. Schwemmer; A. Shalchi; I. Sushch; M. Sikora; J. L. Skilton; H. Sol; G. Spengler; Stawarz; R. Steenkamp; C. Stegmann; F. Stinzing; A. Szostek; P. H. Tam; J. P. Tavernet; R. Terrier; O. Tibolla; M. Tluczykont; K. Valerius; C. Van Eldik; G. Vasileiadis; C. Venter; J. P. Vialle; A. Viana; P. Vincent; M. Vivier; H. J. Volk; F. Volpe; S. Vorobiov; S. J. Wagner; M. Ward; A. Wierzcholska; A. Zajczyk; A. A. Zdziarski; A. Zech; H. S. Zechlin; G. Dubner; E. Giacani

doi:10.1051/0004-6361/201015381

Detection of very-high-energy γ-ray emission from the vicinity of PSRB1706-44 and G343.1-2.3 with H.E.S.S.

A. Abramowski, F. Acero, F. Aharonian, A. G. Akhperjanian, G. Anton, A. Barnacka, U. Barres De Almeida, A. R. Bazer-Bachi, Y. Becherini, J. Becker, B. Behera, K. Bernlohr, A. Bochow, C. Boisson, J. Bolmont, P. Bordas, V. Borre, J. Brucker, F. Brun, P. BrunT. Bulik, I. Busching, S. Carrigan, S. Casanova, M. Cerruti, 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. Danie, I. D. Davids, B. Degrange, C. Deil, H. J. Dickinson, A. Djannati-Atai, 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, M. V. Fernandes, A. Fiasson, A. Forster, G. Fontaine, M. Fusling, S. Gabici, Y. A. Gallant, H. Gast, L. Gerard, D. Gerbig, B. Giebels, J. F. Glicenstein, B. Gluck, P. Goret, D. Goring, J. D. Hague, D. Hampf, 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, M. Jamrozy, I. Jung, M. A. Kastendieck, K. Katarzyński, U. Katz, S. Kaufmann, M. Kerschhagg, D. Khangulyan, B. Khelifi, D. Keogh, W. Kluźzniak, T. Kneiske, Nu Komin, K. Kosack, R. Kossakowski, H. Laffont, G. Lamanna, M. Lemoine-Goumard, J. P. Lenain, D. Lennarz, T. Lohse, A. Lopatin, C. C. Lu, V. Marandon, A. Marcowith, J. Masbou, D. Maurin, N. Maxted, T. J L McComb, M. C. Medina, J. Mehault, R. Moderski, E. Moulin, M. Naumann-Godo, M. De Naurois, D. Nedbal, D. Nekrassov, N. Nguyen, B. Nicholas, J. Niemiec, S. J. Nolan, S. Ohm, J. F. Olive, E. Ona De Wilhelmi, B. Opitz, M. Ostrowski, M. Panter, M. Paz Arribas, G. Pedaletti, G. Pelletier, P. O. Petrucci, S. Pita, G. Puhlhofer, M. Punch, A. Quirrenbach, M. Raue, S. M. Rayner, 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, J. Ruppel, F. Ryde, V. Sahakian, A. Santangelo, R. Schlickeiser, F. M. Schock, A. Schonwald, U. Schwanke, S. Schwarzburg, S. Schwemmer, A. Shalchi, I. Sushch, M. Sikora, J. L. Skilton, H. Sol, G. Spengler, Stawarz, R. Steenkamp, C. Stegmann, F. Stinzing, A. Szostek, P. H. Tam, J. P. Tavernet, R. Terrier, O. Tibolla, M. Tluczykont, K. Valerius, C. Van Eldik, G. Vasileiadis, C. Venter, J. P. Vialle, A. Viana, P. Vincent, M. Vivier, H. J. Volk, F. Volpe, S. Vorobiov, S. J. Wagner, M. Ward, A. Wierzcholska, A. Zajczyk, A. A. Zdziarski, A. Zech, H. S. Zechlin, G. Dubner, E. Giacani

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article

15 Scopus citations

Abstract

The γ-ray pulsar PSR B1706-44 and the adjacent supernova remnant (SNR) candidate G343.1-2.3 were observed by H.E.S.S. during a dedicated observation campaign in 2007. As a result of this observation campaign, a new source of very-high-energy (VHE; E > 100 GeV) γ-ray emission, H.E.S.S.J1708-443, was detected with a statistical significance of 7σ, although no significant point-like emission was detected at the position of the energetic pulsar itself. In this paper, the morphological and spectral analyses of the newly-discovered TeV source are presented. The centroid of H.E.S.S.J1708-443 is considerably offset from the pulsar and located near the apparent center of the SNR, at α_J2000 = 17^h08 ^m11^s ± 17^s and δ_J2000 = -44°20′ ± 4′. The source is found to be significantly more extended than the H.E.S.S. point spread function (∼0.1°), with an intrinsic Gaussian width of 0.29° ± 0.04°. Its integral flux between 1 and 10 TeV is ~ 3.8 × 10^-12 ph cm^-2 s ^-1, equivalent to 17% of the Crab Nebula flux in the same energy range. The measured energy spectrum is well-fit by a power law with a relatively hard photon index Γ = 2.0 ± 0.1_stat ± 0.2 _sys. Additional multi-wavelength data, including 330 MHz VLA observations, were used to investigate the VHE γ-ray source's possible associations with the pulsar wind nebula of PSR B1706-44 and/or with the complex radio structure of the partial shell-type SNR G 343.1-2.3.

Original language	English (US)
Article number	A143
Journal	Astronomy and Astrophysics
Volume	528
DOIs	https://doi.org/10.1051/0004-6361/201015381
State	Published - 2011

Keywords

ISM: individual objects: G343.1-2.3
gamma rays: general
pulsars: individual: PSRB1706-44

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10.1051/0004-6361/201015381

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Abramowski, A., Acero, F., Aharonian, F., Akhperjanian, A. G., Anton, G., Barnacka, A., Barres De Almeida, U., Bazer-Bachi, A. R., Becherini, Y., Becker, J., Behera, B., Bernlohr, K., Bochow, A., Boisson, C., Bolmont, J., Bordas, P., Borre, V., Brucker, J., Brun, F., ... Giacani, E. (2011). Detection of very-high-energy γ-ray emission from the vicinity of PSRB1706-44 and G343.1-2.3 with H.E.S.S. Astronomy and Astrophysics, 528, [A143]. https://doi.org/10.1051/0004-6361/201015381

Detection of very-high-energy γ-ray emission from the vicinity of PSRB1706-44 and G343.1-2.3 with H.E.S.S. / Abramowski, A.; Acero, F.; Aharonian, F.; Akhperjanian, A. G.; Anton, G.; Barnacka, A.; Barres De Almeida, U.; Bazer-Bachi, A. R.; Becherini, Y.; Becker, J.; Behera, B.; Bernlohr, K.; Bochow, A.; Boisson, C.; Bolmont, J.; Bordas, P.; Borre, V.; Brucker, J.; Brun, F.; Brun, P.; Bulik, T.; Busching, I.; Carrigan, S.; Casanova, S.; Cerruti, M.; Chadwick, P. M.; Charbonnier, A.; Chaves, R. C G; Cheesebrough, A.; Conrad, J.; Chounet, L. M.; Clapson, A. C.; Coignet, G.; Dalton, M.; Danie, M. K.; Davids, I. D.; Degrange, B.; Deil, C.; Dickinson, H. J.; Djannati-Atai, A.; Domainko, W.; Drury, L. O C; Dubois, F.; Dubus, G.; Dyks, J.; Dyrda, M.; Egberts, K.; Eger, P.; Espigat, P.; Fallon, L.; Farnier, C.; Fegan, S.; Feinstein, F.; Fernandes, M. V.; Fiasson, A.; Forster, A.; Fontaine, G.; Fusling, M.; Gabici, S.; Gallant, Y. A.; Gast, H.; Gerard, L.; Gerbig, D.; Giebels, B.; Glicenstein, J. F.; Gluck, B.; Goret, P.; Goring, D.; Hague, J. D.; Hampf, D.; Hauser, M.; Heinz, S.; Heinzelmann, G.; Henri, G.; Hermann, G.; Hinton, J. A.; Hoffmann, A.; Hofmann, W.; Hofverberg, P.; Holleran, M.; Hoppe, S.; Horns, D.; Jacholkowska, A.; De Jager, O. C.; Jahn, C.; Jamrozy, M.; Jung, I.; Kastendieck, M. A.; Katarzyński, K.; Katz, U.; Kaufmann, S.; Kerschhagg, M.; Khangulyan, D.; Khelifi, B.; Keogh, D.; Kluźzniak, W.; Kneiske, T.; Komin, Nu; Kosack, K.; Kossakowski, R.; Laffont, H.; Lamanna, G.; Lemoine-Goumard, M.; Lenain, J. P.; Lennarz, D.; Lohse, T.; Lopatin, A.; Lu, C. C.; Marandon, V.; Marcowith, A.; Masbou, J.; Maurin, D.; Maxted, N.; McComb, T. J L; Medina, M. C.; Mehault, J.; Moderski, R.; Moulin, E.; Naumann-Godo, M.; De Naurois, M.; Nedbal, D.; Nekrassov, D.; Nguyen, N.; Nicholas, B.; Niemiec, J.; Nolan, S. J.; Ohm, S.; Olive, J. F.; De Wilhelmi, E. Ona; Opitz, B.; Ostrowski, M.; Panter, M.; Arribas, M. Paz; Pedaletti, G.; Pelletier, G.; Petrucci, P. O.; Pita, S.; Puhlhofer, G.; Punch, M.; Quirrenbach, A.; Raue, M.; Rayner, S. M.; Reimer, A.; Reimer, O.; Renaud, M.; De Los Reyes, R.; Rieger, F.; Ripken, J.; Rob, L.; Rosier-Lees, S.; Rowell, G.; Rudak, B.; Rulten, C. B.; Ruppel, J.; Ryde, F.; Sahakian, V.; Santangelo, A.; Schlickeiser, R.; Schock, F. M.; Schonwald, A.; Schwanke, U.; Schwarzburg, S.; Schwemmer, S.; Shalchi, A.; Sushch, I.; Sikora, M.; Skilton, J. L.; Sol, H.; Spengler, G.; Stawarz; Steenkamp, R.; Stegmann, C.; Stinzing, F.; Szostek, A.; Tam, P. H.; Tavernet, J. P.; Terrier, R.; Tibolla, O.; Tluczykont, M.; Valerius, K.; Van Eldik, C.; Vasileiadis, G.; Venter, C.; Vialle, J. P.; Viana, A.; Vincent, P.; Vivier, M.; Volk, H. J.; Volpe, F.; Vorobiov, S.; Wagner, S. J.; Ward, M.; Wierzcholska, A.; Zajczyk, A.; Zdziarski, A. A.; Zech, A.; Zechlin, H. S.; Dubner, G.; Giacani, E.

In: Astronomy and Astrophysics, Vol. 528, A143, 2011.

Research output: Contribution to journal › Article

Abramowski, A, Acero, F, Aharonian, F, Akhperjanian, AG, Anton, G, Barnacka, A, Barres De Almeida, U, Bazer-Bachi, AR, Becherini, Y, Becker, J, Behera, B, Bernlohr, K, Bochow, A, Boisson, C, Bolmont, J, Bordas, P, Borre, V, Brucker, J, Brun, F, Brun, P, Bulik, T, Busching, I, Carrigan, S, Casanova, S, Cerruti, M, Chadwick, PM, Charbonnier, A, Chaves, RCG, Cheesebrough, A, Conrad, J, Chounet, LM, Clapson, AC, Coignet, G, Dalton, M, Danie, MK, Davids, ID, Degrange, B, Deil, C, Dickinson, HJ, Djannati-Atai, 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, Fernandes, MV, Fiasson, A, Forster, A, Fontaine, G, Fusling, M, Gabici, S, Gallant, YA, Gast, H, Gerard, L, Gerbig, D, Giebels, B, Glicenstein, JF, Gluck, B, Goret, P, Goring, D, Hague, JD, Hampf, 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, Jamrozy, M, Jung, I, Kastendieck, MA, Katarzyński, K, Katz, U, Kaufmann, S, Kerschhagg, M, Khangulyan, D, Khelifi, B, Keogh, D, Kluźzniak, W, Kneiske, T, Komin, N, Kosack, K, Kossakowski, R, Laffont, H, Lamanna, G, Lemoine-Goumard, M, Lenain, JP, Lennarz, D, Lohse, T, Lopatin, A, Lu, CC, Marandon, V, Marcowith, A, Masbou, J, Maurin, D, Maxted, N, McComb, TJL, Medina, MC, Mehault, J, Moderski, R, Moulin, E, Naumann-Godo, M, De Naurois, M, Nedbal, D, Nekrassov, D, Nguyen, N, Nicholas, B, Niemiec, J, Nolan, SJ, Ohm, S, Olive, JF, De Wilhelmi, EO, Opitz, B, Ostrowski, M, Panter, M, Arribas, MP, Pedaletti, G, Pelletier, G, Petrucci, PO, Pita, S, Puhlhofer, G, Punch, M, Quirrenbach, A, Raue, M, Rayner, SM, Reimer, A, 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, Schock, FM, Schonwald, A, Schwanke, U, Schwarzburg, S, Schwemmer, S, Shalchi, A, Sushch, I, Sikora, M, Skilton, JL, Sol, H, Spengler, G, Stawarz, Steenkamp, R, Stegmann, C, Stinzing, F, Szostek, A, Tam, PH, Tavernet, JP, Terrier, R, Tibolla, O, Tluczykont, M, Valerius, K, Van Eldik, C, Vasileiadis, G, Venter, C, Vialle, JP, Viana, A, Vincent, P, Vivier, M, Volk, HJ, Volpe, F, Vorobiov, S, Wagner, SJ, Ward, M, Wierzcholska, A, Zajczyk, A, Zdziarski, AA, Zech, A, Zechlin, HS, Dubner, G & Giacani, E 2011, 'Detection of very-high-energy γ-ray emission from the vicinity of PSRB1706-44 and G343.1-2.3 with H.E.S.S.', Astronomy and Astrophysics, vol. 528, A143. https://doi.org/10.1051/0004-6361/201015381

Abramowski, A. ; Acero, F. ; Aharonian, F. ; Akhperjanian, A. G. ; Anton, G. ; Barnacka, A. ; Barres De Almeida, U. ; Bazer-Bachi, A. R. ; Becherini, Y. ; Becker, J. ; Behera, B. ; Bernlohr, K. ; Bochow, A. ; Boisson, C. ; Bolmont, J. ; Bordas, P. ; Borre, V. ; Brucker, J. ; Brun, F. ; Brun, P. ; Bulik, T. ; Busching, I. ; Carrigan, S. ; Casanova, S. ; Cerruti, M. ; Chadwick, P. M. ; Charbonnier, A. ; Chaves, R. C G ; Cheesebrough, A. ; Conrad, J. ; Chounet, L. M. ; Clapson, A. C. ; Coignet, G. ; Dalton, M. ; Danie, M. K. ; Davids, I. D. ; Degrange, B. ; Deil, C. ; Dickinson, H. J. ; Djannati-Atai, A. ; Domainko, W. ; Drury, L. O C ; Dubois, F. ; Dubus, G. ; Dyks, J. ; Dyrda, M. ; Egberts, K. ; Eger, P. ; Espigat, P. ; Fallon, L. ; Farnier, C. ; Fegan, S. ; Feinstein, F. ; Fernandes, M. V. ; Fiasson, A. ; Forster, A. ; Fontaine, G. ; Fusling, M. ; Gabici, S. ; Gallant, Y. A. ; Gast, H. ; Gerard, L. ; Gerbig, D. ; Giebels, B. ; Glicenstein, J. F. ; Gluck, B. ; Goret, P. ; Goring, D. ; Hague, J. D. ; Hampf, D. ; Hauser, M. ; Heinz, S. ; Heinzelmann, G. ; Henri, G. ; Hermann, G. ; Hinton, J. A. ; Hoffmann, A. ; Hofmann, W. ; Hofverberg, P. ; Holleran, M. ; Hoppe, S. ; Horns, D. ; Jacholkowska, A. ; De Jager, O. C. ; Jahn, C. ; Jamrozy, M. ; Jung, I. ; Kastendieck, M. A. ; Katarzyński, K. ; Katz, U. ; Kaufmann, S. ; Kerschhagg, M. ; Khangulyan, D. ; Khelifi, B. ; Keogh, D. ; Kluźzniak, W. ; Kneiske, T. ; Komin, Nu ; Kosack, K. ; Kossakowski, R. ; Laffont, H. ; Lamanna, G. ; Lemoine-Goumard, M. ; Lenain, J. P. ; Lennarz, D. ; Lohse, T. ; Lopatin, A. ; Lu, C. C. ; Marandon, V. ; Marcowith, A. ; Masbou, J. ; Maurin, D. ; Maxted, N. ; McComb, T. J L ; Medina, M. C. ; Mehault, J. ; Moderski, R. ; Moulin, E. ; Naumann-Godo, M. ; De Naurois, M. ; Nedbal, D. ; Nekrassov, D. ; Nguyen, N. ; Nicholas, B. ; Niemiec, J. ; Nolan, S. J. ; Ohm, S. ; Olive, J. F. ; De Wilhelmi, E. Ona ; Opitz, B. ; Ostrowski, M. ; Panter, M. ; Arribas, M. Paz ; Pedaletti, G. ; Pelletier, G. ; Petrucci, P. O. ; Pita, S. ; Puhlhofer, G. ; Punch, M. ; Quirrenbach, A. ; Raue, M. ; Rayner, S. M. ; Reimer, A. ; Reimer, O. ; Renaud, M. ; De Los Reyes, R. ; Rieger, F. ; Ripken, J. ; Rob, L. ; Rosier-Lees, S. ; Rowell, G. ; Rudak, B. ; Rulten, C. B. ; Ruppel, J. ; Ryde, F. ; Sahakian, V. ; Santangelo, A. ; Schlickeiser, R. ; Schock, F. M. ; Schonwald, A. ; Schwanke, U. ; Schwarzburg, S. ; Schwemmer, S. ; Shalchi, A. ; Sushch, I. ; Sikora, M. ; Skilton, J. L. ; Sol, H. ; Spengler, G. ; Stawarz ; Steenkamp, R. ; Stegmann, C. ; Stinzing, F. ; Szostek, A. ; Tam, P. H. ; Tavernet, J. P. ; Terrier, R. ; Tibolla, O. ; Tluczykont, M. ; Valerius, K. ; Van Eldik, C. ; Vasileiadis, G. ; Venter, C. ; Vialle, J. P. ; Viana, A. ; Vincent, P. ; Vivier, M. ; Volk, H. J. ; Volpe, F. ; Vorobiov, S. ; Wagner, S. J. ; Ward, M. ; Wierzcholska, A. ; Zajczyk, A. ; Zdziarski, A. A. ; Zech, A. ; Zechlin, H. S. ; Dubner, G. ; Giacani, E. / Detection of very-high-energy γ-ray emission from the vicinity of PSRB1706-44 and G343.1-2.3 with H.E.S.S. In: Astronomy and Astrophysics. 2011 ; Vol. 528.

@article{3e838dd62b92451ebf23e75accecbdcf,

title = "Detection of very-high-energy γ-ray emission from the vicinity of PSRB1706-44 and G343.1-2.3 with H.E.S.S.",

abstract = "The γ-ray pulsar PSR B1706-44 and the adjacent supernova remnant (SNR) candidate G343.1-2.3 were observed by H.E.S.S. during a dedicated observation campaign in 2007. As a result of this observation campaign, a new source of very-high-energy (VHE; E > 100 GeV) γ-ray emission, H.E.S.S.J1708-443, was detected with a statistical significance of 7σ, although no significant point-like emission was detected at the position of the energetic pulsar itself. In this paper, the morphological and spectral analyses of the newly-discovered TeV source are presented. The centroid of H.E.S.S.J1708-443 is considerably offset from the pulsar and located near the apparent center of the SNR, at αJ2000 = 17h08 m11s ± 17s and δJ2000 = -44°20′ ± 4′. The source is found to be significantly more extended than the H.E.S.S. point spread function (∼0.1°), with an intrinsic Gaussian width of 0.29° ± 0.04°. Its integral flux between 1 and 10 TeV is ~ 3.8 × 10-12 ph cm-2 s -1, equivalent to 17% of the Crab Nebula flux in the same energy range. The measured energy spectrum is well-fit by a power law with a relatively hard photon index Γ = 2.0 ± 0.1stat ± 0.2 sys. Additional multi-wavelength data, including 330 MHz VLA observations, were used to investigate the VHE γ-ray source's possible associations with the pulsar wind nebula of PSR B1706-44 and/or with the complex radio structure of the partial shell-type SNR G 343.1-2.3.",

keywords = "ISM: individual objects: G343.1-2.3, gamma rays: general, pulsars: individual: PSRB1706-44",

author = "A. Abramowski and F. Acero and F. Aharonian and Akhperjanian, {A. G.} and G. Anton and A. Barnacka and {Barres De Almeida}, U. and Bazer-Bachi, {A. R.} and Y. Becherini and J. Becker and B. Behera and K. Bernlohr and A. Bochow and C. Boisson and J. Bolmont and P. Bordas and V. Borre and J. Brucker and F. Brun and P. Brun and T. Bulik and I. Busching and S. Carrigan and S. Casanova and M. Cerruti 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 Danie, {M. K.} and Davids, {I. D.} and B. Degrange and C. Deil and Dickinson, {H. J.} and A. Djannati-Atai 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 Fernandes, {M. V.} and A. Fiasson and A. Forster and G. Fontaine and M. Fusling and S. Gabici and Gallant, {Y. A.} and H. Gast and L. Gerard and D. Gerbig and B. Giebels and Glicenstein, {J. F.} and B. Gluck and P. Goret and D. Goring and Hague, {J. D.} and D. Hampf 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 M. Jamrozy and I. Jung and Kastendieck, {M. A.} and K. Katarzy{\'n}ski and U. Katz and S. Kaufmann and M. Kerschhagg and D. Khangulyan and B. Khelifi and D. Keogh and W. Klu{\'z}zniak and T. Kneiske and Nu Komin and K. Kosack and R. Kossakowski and H. Laffont and G. Lamanna and M. Lemoine-Goumard and Lenain, {J. P.} and D. Lennarz and T. Lohse and A. Lopatin and Lu, {C. C.} and V. Marandon and A. Marcowith and J. Masbou and D. Maurin and N. Maxted and McComb, {T. J L} and Medina, {M. C.} and J. Mehault and R. Moderski and E. Moulin and M. Naumann-Godo and {De Naurois}, M. and D. Nedbal and D. Nekrassov and N. Nguyen and B. Nicholas and J. Niemiec and Nolan, {S. J.} and S. Ohm and Olive, {J. F.} and {De Wilhelmi}, {E. Ona} and B. Opitz and M. Ostrowski and M. Panter and Arribas, {M. Paz} and G. Pedaletti and G. Pelletier and Petrucci, {P. O.} and S. Pita and G. Puhlhofer and M. Punch and A. Quirrenbach and M. Raue and Rayner, {S. M.} and A. Reimer 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 Schock, {F. M.} and A. Schonwald 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 G. Spengler and Stawarz and R. Steenkamp and C. Stegmann and F. Stinzing and A. Szostek and Tam, {P. H.} and Tavernet, {J. P.} and R. Terrier and O. Tibolla and M. Tluczykont and K. Valerius and {Van Eldik}, C. and G. Vasileiadis and C. Venter and Vialle, {J. P.} and A. Viana and P. Vincent and M. Vivier and Volk, {H. J.} and F. Volpe and S. Vorobiov and Wagner, {S. J.} and M. Ward and A. Wierzcholska and A. Zajczyk and Zdziarski, {A. A.} and A. Zech and Zechlin, {H. S.} and G. Dubner and E. Giacani",

year = "2011",

doi = "10.1051/0004-6361/201015381",

language = "English (US)",

volume = "528",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

}

TY - JOUR

T1 - Detection of very-high-energy γ-ray emission from the vicinity of PSRB1706-44 and G343.1-2.3 with H.E.S.S.

AU - Abramowski, A.

AU - Acero, F.

AU - Aharonian, F.

AU - Akhperjanian, A. G.

AU - Anton, G.

AU - Barnacka, A.

AU - Barres De Almeida, U.

AU - Bazer-Bachi, A. R.

AU - Becherini, Y.

AU - Becker, J.

AU - Behera, B.

AU - Bernlohr, K.

AU - Bochow, A.

AU - Boisson, C.

AU - Bolmont, J.

AU - Bordas, P.

AU - Borre, V.

AU - Brucker, J.

AU - Brun, F.

AU - Brun, P.

AU - Bulik, T.

AU - Busching, I.

AU - Carrigan, S.

AU - Casanova, S.

AU - Cerruti, M.

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 - Danie, M. K.

AU - Davids, I. D.

AU - Degrange, B.

AU - Deil, C.

AU - Dickinson, H. J.

AU - Djannati-Atai, 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 - Fernandes, M. V.

AU - Fiasson, A.

AU - Forster, A.

AU - Fontaine, G.

AU - Fusling, M.

AU - Gabici, S.

AU - Gallant, Y. A.

AU - Gast, H.

AU - Gerard, L.

AU - Gerbig, D.

AU - Giebels, B.

AU - Glicenstein, J. F.

AU - Gluck, B.

AU - Goret, P.

AU - Goring, D.

AU - Hague, J. D.

AU - Hampf, 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 - Jamrozy, M.

AU - Jung, I.

AU - Kastendieck, M. A.

AU - Katarzyński, K.

AU - Katz, U.

AU - Kaufmann, S.

AU - Kerschhagg, M.

AU - Khangulyan, D.

AU - Khelifi, B.

AU - Keogh, D.

AU - Kluźzniak, W.

AU - Kneiske, T.

AU - Komin, Nu

AU - Kosack, K.

AU - Kossakowski, R.

AU - Laffont, H.

AU - Lamanna, G.

AU - Lemoine-Goumard, M.

AU - Lenain, J. P.

AU - Lennarz, D.

AU - Lohse, T.

AU - Lopatin, A.

AU - Lu, C. C.

AU - Marandon, V.

AU - Marcowith, A.

AU - Masbou, J.

AU - Maurin, D.

AU - Maxted, N.

AU - McComb, T. J L

AU - Medina, M. C.

AU - Mehault, J.

AU - Moderski, R.

AU - Moulin, E.

AU - Naumann-Godo, M.

AU - De Naurois, M.

AU - Nedbal, D.

AU - Nekrassov, D.

AU - Nguyen, N.

AU - Nicholas, B.

AU - Niemiec, J.

AU - Nolan, S. J.

AU - Ohm, S.

AU - Olive, J. F.

AU - De Wilhelmi, E. Ona

AU - Opitz, B.

AU - Ostrowski, M.

AU - Panter, M.

AU - Arribas, M. Paz

AU - Pedaletti, G.

AU - Pelletier, G.

AU - Petrucci, P. O.

AU - Pita, S.

AU - Puhlhofer, G.

AU - Punch, M.

AU - Quirrenbach, A.

AU - Raue, M.

AU - Rayner, S. M.

AU - Reimer, A.

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 - Schock, F. M.

AU - Schonwald, 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 - Spengler, G.

AU - Stawarz,

AU - Steenkamp, R.

AU - Stegmann, C.

AU - Stinzing, F.

AU - Szostek, A.

AU - Tam, P. H.

AU - Tavernet, J. P.

AU - Terrier, R.

AU - Tibolla, O.

AU - Tluczykont, M.

AU - Valerius, K.

AU - Van Eldik, C.

AU - Vasileiadis, G.

AU - Venter, C.

AU - Vialle, J. P.

AU - Viana, A.

AU - Vincent, P.

AU - Vivier, M.

AU - Volk, H. J.

AU - Volpe, F.

AU - Vorobiov, S.

AU - Wagner, S. J.

AU - Ward, M.

AU - Wierzcholska, A.

AU - Zajczyk, A.

AU - Zdziarski, A. A.

AU - Zech, A.

AU - Zechlin, H. S.

AU - Dubner, G.

AU - Giacani, E.

PY - 2011

Y1 - 2011

N2 - The γ-ray pulsar PSR B1706-44 and the adjacent supernova remnant (SNR) candidate G343.1-2.3 were observed by H.E.S.S. during a dedicated observation campaign in 2007. As a result of this observation campaign, a new source of very-high-energy (VHE; E > 100 GeV) γ-ray emission, H.E.S.S.J1708-443, was detected with a statistical significance of 7σ, although no significant point-like emission was detected at the position of the energetic pulsar itself. In this paper, the morphological and spectral analyses of the newly-discovered TeV source are presented. The centroid of H.E.S.S.J1708-443 is considerably offset from the pulsar and located near the apparent center of the SNR, at αJ2000 = 17h08 m11s ± 17s and δJ2000 = -44°20′ ± 4′. The source is found to be significantly more extended than the H.E.S.S. point spread function (∼0.1°), with an intrinsic Gaussian width of 0.29° ± 0.04°. Its integral flux between 1 and 10 TeV is ~ 3.8 × 10-12 ph cm-2 s -1, equivalent to 17% of the Crab Nebula flux in the same energy range. The measured energy spectrum is well-fit by a power law with a relatively hard photon index Γ = 2.0 ± 0.1stat ± 0.2 sys. Additional multi-wavelength data, including 330 MHz VLA observations, were used to investigate the VHE γ-ray source's possible associations with the pulsar wind nebula of PSR B1706-44 and/or with the complex radio structure of the partial shell-type SNR G 343.1-2.3.

AB - The γ-ray pulsar PSR B1706-44 and the adjacent supernova remnant (SNR) candidate G343.1-2.3 were observed by H.E.S.S. during a dedicated observation campaign in 2007. As a result of this observation campaign, a new source of very-high-energy (VHE; E > 100 GeV) γ-ray emission, H.E.S.S.J1708-443, was detected with a statistical significance of 7σ, although no significant point-like emission was detected at the position of the energetic pulsar itself. In this paper, the morphological and spectral analyses of the newly-discovered TeV source are presented. The centroid of H.E.S.S.J1708-443 is considerably offset from the pulsar and located near the apparent center of the SNR, at αJ2000 = 17h08 m11s ± 17s and δJ2000 = -44°20′ ± 4′. The source is found to be significantly more extended than the H.E.S.S. point spread function (∼0.1°), with an intrinsic Gaussian width of 0.29° ± 0.04°. Its integral flux between 1 and 10 TeV is ~ 3.8 × 10-12 ph cm-2 s -1, equivalent to 17% of the Crab Nebula flux in the same energy range. The measured energy spectrum is well-fit by a power law with a relatively hard photon index Γ = 2.0 ± 0.1stat ± 0.2 sys. Additional multi-wavelength data, including 330 MHz VLA observations, were used to investigate the VHE γ-ray source's possible associations with the pulsar wind nebula of PSR B1706-44 and/or with the complex radio structure of the partial shell-type SNR G 343.1-2.3.

KW - ISM: individual objects: G343.1-2.3

KW - gamma rays: general

KW - pulsars: individual: PSRB1706-44

UR - http://www.scopus.com/inward/record.url?scp=79952746402&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79952746402&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/201015381

DO - 10.1051/0004-6361/201015381

M3 - Article

AN - SCOPUS:79952746402

VL - 528

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

SN - 0004-6361

M1 - A143

ER -