H.E.S.S. observations of the globular clusters NGC 6388 and M15 and search for a dark matter signal

Abramowski A, Acero F, Aharonian F, Akhperjanian AG, Anton G, Balzer A, Barnacka A, De Almeida UB, Bazer-Bachi AR, Becherini Y, Becker J, Behera B, Bernloehr K, Bochow A, Boisson C, Bolmont J, Bordas P, Borrel V, Brucker J, Brun F, Brun P, Bulik T, Buesching I, Carrigan S, Casanova S, Cerruti M, Chadwick PM, Charbonnier A, Chaves RCG, Cheesebrough A, Chounet LM, Clapson AC, Coignet G, Conrad J, 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, Eger P, Espigat P, Fallon L, Farnier C, Fegan S, Feinstein F, Fernandes MV, Fiasson A, Fontaine G, Foerster A, Fuessling M, Gallant YA, Gast H, Gerard L, Gerbig D, Giebels B, Glicenstein JF, Glueck B, Goret P, Göring D, Häffner S, Hague JD, Hampf D, Hauser M, Heinz S, Heinzelmann G, Henri G, Hermann G, Hinton JA, Hoffmann A, Hofmann W, Hofverberg P, Holler M, Horns D, Jacholkowska A, De Jager OC, Jahn C, Jamrozy M, Jung I, Kastendieck MA, Katarzynski K, Katz U, Kaufmann S, Keogh D, Khangulyan D, Khelifi B, Klochkov D, Kluzniak W, Kneiske TM, Komin N, Kosack K, Kossakowski R, Laffon H, Lamanna G, Lennarz D, Lohse T, Lopatin A, Lu CC, Marandon V, Marcowith A, Masbou J, Maurin D, Maxted NI, Mccomb TJL, Medina MC, Mehault J, Moderski R, Moulin E, Naumann CL, Naumann-Godo M, De Naurois M, Nedbal D, Nekrassov D, Nguyen N, Nicholas B, Niemiec J, Nolan SJ, Ohm S, Olive JP, Wilhelmi EDO, Opitz B, Ostrowski M, Panter M, Arribas MP, Pedaletti G, Pelletier G, Petrucci PO, Pita S, Puehlhofer 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, Schoeck FM, Schulz A, Schwanke U, Schwarzburg S, Schwemmer S, Sikora M, Skilton JL, Sol H, Spengler G, Stawarz L, Steenkamp R, Stegmann C, Stinzing F, Stycz K, Sushch I, Szostek A, 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, Voelk HJ, Volpe F, Vorobiov S, Vorster M, Wagner SJ, Ward M, Wierzcholska A, Zacharias M, Zajczyk A, Zdziarski AA, Zech A, Zechlin HS (2011)

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2011

Journal

Book Volume: 735

Article Number: 12

Journal Issue: 1

DOI: 10.1088/0004-637X/735/1/12

Abstract

Observations of the globular clusters (GCs) NGC 6388 and M15 were carried out by the High Energy Stereoscopic System array of Cherenkov telescopes for a live time of 27.2 and 15.2 hr, respectively. No gamma-ray signal is found at the nominal target position of NGC 6388 and M15. In the primordial formation scenario, GCs are formed in a dark matter (DM) halo and DM could still be present in the baryon-dominated environment of GCs. This opens the possibility of observing a DM self-annihilation signal. The DM content of the GCs NGC 6388 and M15 is modeled taking into account the astrophysical processes that can be expected to influence the DM distribution during the evolution of the GC: the adiabatic contraction of DM by baryons, the adiabatic growth of a black hole in the DM halo, and the kinetic heating of DM by stars. Ninety-five percent confidence level exclusion limits on the DM particle velocity-weighted annihilation cross section are derived for these DM halos. In the TeV range, the limits on the velocity-weighted annihilation cross section are derived at the 10 cm s level and a few 10 cm s for NGC 6388 and M15, respectively. © 2011. The American Astronomical Society. All rights reserved..

Authors with CRIS profile

Involved external institutions

Universität Hamburg (UHH) Germany (DE) University of Montpellier / Université Montpellier France (FR) Ruprecht-Karls-Universität Heidelberg Germany (DE) Eberhard Karls Universität Tübingen Germany (DE) Jagiellonian University / Uniwersytet Jagielloński (UJ) Poland (PL) Royal Institute of Technology / Kungliga Tekniska Högskolan (KTH) Sweden (SE) University of Paris 7 - Denis Diderot / Université Paris VII Denis Diderot France (FR) Max-Planck-Institut für Kernphysik (MPIK) / Max Planck Institute for Nuclear Physics Germany (DE) Nicolaus Copernicus Astronomical Centre of the Polish Academy of Sciences Poland (PL) École Polytechnique - Université Paris-Saclay France (FR) Institut national de physique nucléaire et de physique des particules (IN2P3) France (FR) Durham University United Kingdom (GB) Humboldt-Universität zu Berlin Germany (DE) Noordwes-Universiteit / North-West University South Africa (ZA) Ruhr-Universität Bochum (RUB) Germany (DE) Centre CEA de Saclay (Essonne) France (FR) Université Joseph Fourier (UJF Grenoble 1) France (FR) National Academy of Sciences of the Republic of Armenia (NAS RA) / Հայաստանի Հանրապետության գիտությունների ազգային ակադեմիա, ՀՀ ԳԱԱ Armenia (AM) Dublin Institute for Advanced Studies (DIAS) Ireland (IE) Institute of Nuclear Physics PAN / Instytut Fizyki Jądrowej im. Henryka Niewodniczańskiego PAN Poland (PL) University of Warsaw / Uniwersytet Warszawski Poland (PL) University of Namibia (UNAM) Namibia (NA) University of Adelaide Australia (AU) Université Toulouse III - Paul Sabatier France (FR) Leopold-Franzens-Universität Innsbruck / University of Innsbruck Austria (AT) Nicolaus Copernicus University (NCU) / Uniwersytet Mikołaja Kopernika w Toruniu (UMK) Poland (PL) University of Leicester United Kingdom (GB) Univerzita Karlova v Praze / Charles University in Prague Czech Republic (CZ) University of Leeds United Kingdom (GB)

How to cite

APA:

Abramowski, A., Acero, F., Aharonian, F., Akhperjanian, A.G., Anton, G., Balzer, A.,... Zechlin, H.-S. (2011). H.E.S.S. observations of the globular clusters NGC 6388 and M15 and search for a dark matter signal. Astrophysical Journal, 735(1). https://doi.org/10.1088/0004-637X/735/1/12

MLA:

Abramowski, A., et al. "H.E.S.S. observations of the globular clusters NGC 6388 and M15 and search for a dark matter signal." Astrophysical Journal 735.1 (2011).

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