HESS upper limit on the very high energy γ-ray emission from the globular cluster 47 Tucanae

Aharonian F, Akhperjanian AG, Anton G, De Almeida UB, Bazer-Bachi AR, Becherini Y, Behera B, Bernloehr K, Boisson C, Bochow A, Borrel V, Braun IV, Brion E, Brucker J, Brun P, Buehler R, Bulik T, Buesching I, Boutelier T, Chadwick PM, Charbonnier A, Chaves RCG, Cheesebrough A, Chounet LM, Clapson AC, Coignet G, Dalton M, Daniel MK, Davids ID, Degrange B, Deil C, Dickinson HJ, Djannati-Atai A, Domainko W, Drury LO, Dubois F, Dubus G, Dyks J, Dyrda M, Egberts K, Emmanoulopoulos D, Espigat P, Farnier C, Feinstein F, Fiasson A, Foerster A, Fontaine G, Fuessling M, Gabici S, Gallant YA, Gerard L, Giebels B, Glicenstein JF, Glueck B, Goret P, Hauser D, Hauser M, Heinz S, 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, Katarzynski K, Katz U, Kaufmann S, Kendziorra E, Kerschhaggl M, Khangulyan D, Khelifi B, Keogh D, Komin N, Kosack K, Lamanna G, Lenain JP, Lohse T, Marandon V, Martin JM, Martineau-Huynh O, Marcowith A, Maurin D, Mccomb TJL, Medina MC, Moderski R, Moulin E, Naumann-Godo M, De Naurois M, Nedbal D, Nekrassov D, Niemiec J, Nolan SJ, Ohm S, Olive JF, Wilhelmi EDO, Orford KJ, Ostrowski M, Panter M, Arribas MP, Pedaletti G, Pelletier G, Petrucci PO, Pita S, Puehlhofer G, Punch M, Quirrenbach A, Raubenheimer BC, Raue M, Rayner SM, Reimer O, Renaud M, Rieger F, Ripken J, Rob L, Rosier-Lees S, Rowell G, Rudak B, Rulten CB, Ruppel J, Sahakian V, Santangelo A, Schlickeiser R, Schoeck FM, Schroeder R, Schwanke U, Schwarzburg S, Schwemmer S, Shalchi A, Skilton JL, Sol H, Spangler D, Stawarz L, Steenkamp R, Stegmann C, Superina G, Szostek A, Tam PH, Tavernet JP, Terrier R, Tibolla O, van Eldik C, Vasileiadis G, Venter C, Venter L, Vialle JP, Vincent P, Vivier M, Voelk HJ, Volpe F, Wagner SJ, Ward M, Zdziarski AA, Zech A (2009)

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2009

Journal

Publisher: EDP Sciences

Book Volume: 499

Pages Range: 273-277

Journal Issue: 1

DOI: 10.1051/0004-6361/200811564

Abstract

Observations of the globular cluster 47 Tucanae (NGC 104), which contains at least 23 ms pulsars, were performed with the HESS telescope system. The observations lead to an upper limit of F(E < 800 GeV) < 6.7 × 10-13 cm-2 s-1 on the integral γ-ray photon flux from 47 Tucanae. Considering millisecond pulsars as the unique potential source of γ-rays in the globular cluster, constraints based on emission models are derived: on the magnetic field in the average pulsar nebula and on the conversion efficiency of spin-down power to γ-ray photons or to relativistic leptons. © 2009 ESO.

Authors with CRIS profile

Involved external institutions

Ruprecht-Karls-Universität Heidelberg Germany (DE) Jagiellonian University / Uniwersytet Jagielloński (UJ) Poland (PL) University of Paris 7 - Denis Diderot / Université Paris VII Denis Diderot France (FR) École Polytechnique - Université Paris-Saclay France (FR) Université Joseph Fourier (UJF Grenoble 1) France (FR) Max-Planck-Institut für Kernphysik (MPIK) / Max Planck Institute for Nuclear Physics Germany (DE) Noordwes-Universiteit / North-West University South Africa (ZA) National Center for Scientific Research / Centre national de la recherche scientifique (CNRS) France (FR) Durham University United Kingdom (GB) Humboldt-Universität zu Berlin Germany (DE) University of Montpellier / Université Montpellier France (FR) University of Leeds United Kingdom (GB) Ruhr-Universität Bochum (RUB) Germany (DE) Univerzita Karlova v Praze / Charles University in Prague Czech Republic (CZ) Universität Hamburg (UHH) Germany (DE) Centre CEA de Saclay (Essonne) France (FR) Université Toulouse III - Paul Sabatier France (FR) Nicolaus Copernicus Astronomical Centre of the Polish Academy of Sciences Poland (PL) University of Adelaide Australia (AU) Eberhard Karls Universität Tübingen Germany (DE) Yerevan Physics Institute (YerPhI) / Երևանի Ֆիզիկայի Ինստիտուտ Armenia (AM) Institute of Nuclear Physics PAN / Instytut Fizyki Jądrowej im. Henryka Niewodniczańskiego PAN Poland (PL) Stanford University United States (USA) (US) Dublin Institute for Advanced Studies (DIAS) Ireland (IE) Nicolaus Copernicus University (NCU) / Uniwersytet Mikołaja Kopernika w Toruniu (UMK) Poland (PL) University of Namibia (UNAM) Namibia (NA)

How to cite

APA:

Aharonian, F., Akhperjanian, A.G., Anton, G., De Almeida, U.B., Bazer-Bachi, A.R., Becherini, Y.,... Zech, A. (2009). HESS upper limit on the very high energy γ-ray emission from the globular cluster 47 Tucanae. Astronomy & Astrophysics, 499(1), 273-277. https://doi.org/10.1051/0004-6361/200811564

MLA:

Aharonian, F., et al. "HESS upper limit on the very high energy γ-ray emission from the globular cluster 47 Tucanae." Astronomy & Astrophysics 499.1 (2009): 273-277.

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