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- Acero, F. (author)
Localizing the VHE gamma-ray source at the Galactic Centre
- Article/chapterEnglish2010
Publisher, publication year, extent ...
- Oxford University Press (OUP),2010
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:su-48953
- https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-48953URI
- https://doi.org/10.1111/j.1365-2966.2009.16014.xDOI
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-19207URI
- https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-30253URI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
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Notes
- authorCount :176
- QC 20110210
- The inner 10 pc of our Galaxy contains many counterpart candidates of the very high energy (VHE; > 100 GeV) gamma-ray point source HESS J1745-290. Within the point spread function of the H.E.S.S. measurement, at least three objects are capable of accelerating particles to VHE and beyond and of providing the observed gamma-ray flux. Previous attempts to address this source confusion were hampered by the fact that the projected distances between these objects were of the order of the error circle radius of the emission centroid (34 arcsec, dominated by the pointing uncertainty of the H.E.S.S. instrument). Here we present H.E.S.S. data of the Galactic Centre region, recorded with an improved control of the instrument pointing compared to H.E.S.S. standard pointing procedures. Stars observed during gamma-ray observations by optical guiding cameras mounted on each H.E.S.S. telescope are used for off-line pointing calibration, thereby decreasing the systematic pointing uncertainties from 20 to 6 arcsec per axis. The position of HESS J1745-290 is obtained by fitting a multi-Gaussian profile to the background-subtracted gamma-ray count map. A spatial comparison of the best-fitting position of HESS J1745-290 with the position and morphology of candidate counterparts is performed. The position is, within a total error circle radius of 13 arcsec, coincident with the position of the supermassive black hole Sgr A* and the recently discovered pulsar wind nebula candidate G359.95-0.04. It is significantly displaced from the centroid of the supernova remnant Sgr A East, excluding this object with high probability as the dominant source of the VHE gamma-ray emission.
Subject headings and genre
- NATURVETENSKAP Fysik Astronomi, astrofysik och kosmologi hsv//swe
- NATURAL SCIENCES Physical Sciences Astronomy, Astrophysics and Cosmology hsv//eng
- ISM: individual: Sgr A East
- ISM: individual: Sgr A*
- ISM: individual: G 359
- 95-0
- 04
- Galaxy: centre
- gamma-rays: observations
- NATURAL SCIENCES
- NATURVETENSKAP
- Astronomy and astrophysics
- Astropartikelfysik
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- Aharonian, F. (author)
- Akhperjanian, A. G. (author)
- Anton, G. (author)
- de Almeida, U. Barres (author)
- Bazer-Bachi, A. R. (author)
- Becherini, Yvonne (author)
- Behera, B. (author)
- Bernloehr, K. (author)
- Bochow, A. (author)
- Boisson, C. (author)
- Bolmont, J. (author)
- Borrel, V. (author)
- Braun, I. (author)
- Brucker, J. (author)
- Brun, F. (author)
- Brun, P. (author)
- Buehler, R. (author)
- Bulik, T. (author)
- Buesching, I. (author)
- Boutelier, T. (author)
- Punch, M.Univ Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France(Swepub:lnu)mipuaa (author)
- Charbonnier, A. (author)
- Chaves, R. C. G. (author)
- Cheesebrough, A. (author)
- Conrad, JanKTH,Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Partikel- och astropartikelfysik(Swepub:kth)u1o0ezny (author)
- Chounet, L. -M (author)
- Clapson, A. C. (author)
- Coignet, G. (author)
- Dalton, M. (author)
- Daniel, M. K. (author)
- Davids, I. D. (author)
- Degrange, B. (author)
- Deil, C. (author)
- Dickinson, H. J. (author)
- Djannati-Atai, A. (author)
- Domainko, W. (author)
- Drury, L. O 'C. (author)
- Dubois, F. (author)
- Dubus, G. (author)
- Dyks, J. (author)
- Dyrda, M. (author)
- Egberts, K. (author)
- Eger, P. (author)
- Espigat, P. (author)
- Fallon, L. (author)
- Farnier, C. (author)
- Fegan, S. (author)
- Feinstein, F. (author)
- Fiasson, A. (author)
- Foerster, A. (author)
- Fontaine, G. (author)
- Fuessling, M. (author)
- Gabici, S. (author)
- Gallant, Y. A. (author)
- Gerard, L. (author)
- Gerbig, D. (author)
- Giebels, B. (author)
- Glicenstein, J. F. (author)
- Glueck, B. (author)
- Goret, P. (author)
- Goering, D. (author)
- Hauser, M. (author)
- Heinz, S. (author)
- Heinzelmann, G. (author)
- Henri, G. (author)
- Hermann, G. (author)
- Hinton, J. A. (author)
- Hoffmann, A. (author)
- Hofmann, W. (author)
- Hofverberg, P. (author)
- Holleran, M. (author)
- Hoppe, S. (author)
- Horns, D. (author)
- Jacholkowska, A. (author)
- de Jager, O. C. (author)
- Jahn, C. (author)
- Jung, I. (author)
- Katarzynski, K. (author)
- Katz, U. (author)
- Kaufmann, S. (author)
- Kerschhaggl, M. (author)
- Khangulyan, D. (author)
- Khelifi, B. (author)
- Keogh, D. (author)
- Klochkov, D. (author)
- Kluzniak, W. (author)
- Kneiske, T. (author)
- Komin, Nu. (author)
- Kosack, K. (author)
- Kossakowski, R. (author)
- Lamanna, G. (author)
- Lenain, J. -P (author)
- Lohse, T. (author)
- Marandon, V. (author)
- Martineau-Huynh, O. (author)
- Marcowith, A. (author)
- Masbou, J. (author)
- Maurin, D. (author)
- McComb, T. J. L. (author)
- Medina, M. C. (author)
- Mehault, J. (author)
- Moderski, R. (author)
- Moulin, E. (author)
- Naumann-Godo, M. (author)
- de Naurois, M. (author)
- Nedbal, D. (author)
- Nekrassov, D. (author)
- Nicholas, B. (author)
- Niemiec, J. (author)
- Nolan, S. J. (author)
- Ohm, S. (author)
- Olive, J-F (author)
- Wilhelmi, E. de Ona (author)
- Orford, K. J. (author)
- Ostrowski, M. (author)
- Panter, M. (author)
- Arribas, M. Paz (author)
- Pedaletti, G. (author)
- Pelletier, G. (author)
- Petrucci, P. -O (author)
- Pita, S. (author)
- Puehlhofer, G. (author)
- Punch, M. (author)
- Quirrenbach, A. (author)
- Raubenheimer, B. C. (author)
- Raue, M. (author)
- Rayner, S. M. (author)
- Reimer, O. (author)
- Renaud, M. (author)
- Rieger, F. (author)
- Ripken, JoachimStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)ripken (author)
- Rob, L. (author)
- Rosier-Lees, S. (author)
- Rowell, G. (author)
- Rudak, B. (author)
- Rulten, C. B. (author)
- Ruppel, J. (author)
- Ryde, FelixKTH,Partikel- och astropartikelfysik(Swepub:kth)u1tlyg6w (author)
- Sahakian, V. (author)
- Santangelo, A. (author)
- Schlickeiser, R. (author)
- Schoeck, F. M. (author)
- Schoenwald, A. (author)
- Schwanke, U. (author)
- Schwarzburg, S. (author)
- Schwemmer, S. (author)
- Shalchi, A. (author)
- Sikora, M. (author)
- Skilton, J. L. (author)
- Sol, H. (author)
- Stawarz, L. (author)
- Steenkamp, R. (author)
- Stegmann, C. (author)
- Stinzing, F. (author)
- Superina, G. (author)
- Sushch, I. (author)
- Szostek, A. (author)
- Tam, P. H. (author)
- Tavernet, J. -P (author)
- Terrier, R. (author)
- Tibolla, O. (author)
- Tluczykont, M. (author)
- van Eldik, C. (author)
- Vasileiadis, G. (author)
- Venter, C. (author)
- Venter, L. (author)
- Vialle, J. P. (author)
- Vincent, P. (author)
- Vivier, M. (author)
- Voelk, H. J. (author)
- Volpe, F. (author)
- Wagner, S. J. (author)
- Ward, M. (author)
- Zdziarski, A. A. (author)
- Zech, A. (author)
- Univ Paris Diderot, APC, AstroParticule & Cosmology, CNRS,IN2P3,CEA,Irfu, Observ Paris,Sorbonne Paris C, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, FranceFysikum (creator_code:org_t)
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- In:Monthly notices of the Royal Astronomical Society: Oxford University Press (OUP)402:3, s. 1877-18820035-87111365-2966
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- Brun, F.
- Brun, P.
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- Coignet, G.
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- Ostrowski, M.
- Panter, M.
- Arribas, M. Paz
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- Tam, P. H.
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- Tluczykont, M.
- van Eldik, C.
- Vasileiadis, G.
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- Venter, L.
- Vialle, J. P.
- Vincent, P.
- Vivier, M.
- Voelk, H. J.
- Volpe, F.
- Wagner, S. J.
- Ward, M.
- Zdziarski, A. A.
- Zech, A.
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