A new SNR with TeV shell-type morphology: HESS J1731-347

Abramowski A, Acero F, Aharonian F, Akhperjanian AG, Anton G, Balzer A, Barnacka A, De Almeida UB, Becherini Y, Becker J, Behera B, Bernloehr K, Bochow A, Boisson C, Bolmont J, Bordas P, 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, Cologna 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, Dutson K, 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, Goerig 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 N, 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, Wilhelmi EDO, Opitz B, Ostrowski M, Oya I, 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, Tluczykont M, Valerius K, van Eldik C, Vasileiadis G, Venter C, Vialle JP, Viana A, Vincent P, Voelk HJ, Volpe F, Vorobiov S, Vorster M, Wagner SJ, Ward M, White R, 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

Publisher: EDP Sciences

Book Volume: 531

Article Number: A81

DOI: 10.1051/0004-6361/201016425

Abstract

Aims. The recent discovery of the radio shell-type supernova remnant (SNR), G353.6-0.7, in spatial coincidence with the unidentified TeV source HESS J1731-347 has motivated further observations of the source with the High Energy Stereoscopic System (HESS) Cherenkov telescope array to test a possible association of the γ-ray emission with the SNR. Methods. With a total of 59 h of observation, representing about four times the initial exposure available in the discovery paper of HESS J1731-347, the γ-ray morphology is investigated and compared with the radio morphology. An estimate of the distance is derived by comparing the interstellar absorption derived from X-rays and the one obtained from CO and HI observations. Results. The deeper γ-ray observation of the source has revealed a large shell-type structure with similar position and extension (r ∼ 0.25°) as the radio SNR, thus confirming their association. By accounting for the HESS angular resolution and projection effects within a simple shell model, the radial profile is compatible with a thin, spatially unresolved, rim. Together with RX J1713.7-3946, RX J0852.0-4622 and SN 1006, HESS J1731-347 is now the fourth SNR with a significant shell morphology at TeV energies. The derived lower limit on the distance of the SNR of 3.2 kpc is used together with radio and X-ray data to discuss the possible origin of the γ-ray emission, either via inverse Compton scattering of electrons or the decay of neutral pions resulting from proton-proton interaction. © 2011 ESO.

Authors with CRIS profile

Involved external institutions

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) Ruhr-Universität Bochum (RUB) Germany (DE) Universität Hamburg (UHH) Germany (DE) University of Leicester United Kingdom (GB) University of Paris 7 - Denis Diderot / Université Paris VII Denis Diderot France (FR) Institute of Nuclear Physics PAN / Instytut Fizyki Jądrowej im. Henryka Niewodniczańskiego PAN Poland (PL) Humboldt-Universität zu Berlin Germany (DE) Durham University United Kingdom (GB) University of Warsaw / Uniwersytet Warszawski Poland (PL) Eberhard Karls Universität Tübingen Germany (DE) Stockholm University / Stockholms universitet Sweden (SE) Dublin Institute for Advanced Studies (DIAS) Ireland (IE) Leopold-Franzens-Universität Innsbruck / University of Innsbruck Austria (AT) École Polytechnique - Université Paris-Saclay France (FR) Ruprecht-Karls-Universität Heidelberg Germany (DE) Université Joseph Fourier (UJF Grenoble 1) France (FR) Commissariat à l'énergie atomique France (FR) University of Savoy Mont Blanc / Université Savoie Mont Blanc France (FR) Nicolaus Copernicus University (NCU) / Uniwersytet Mikołaja Kopernika w Toruniu (UMK) Poland (PL) University of Montpellier / Université Montpellier France (FR) Jagiellonian University / Uniwersytet Jagielloński (UJ) Poland (PL) University of Adelaide Australia (AU) Noordwes-Universiteit / North-West University South Africa (ZA) Royal Institute of Technology / Kungliga Tekniska Högskolan (KTH) Sweden (SE) University of Namibia (UNAM) Namibia (NA) National Academy of Sciences of the Republic of Armenia (NAS RA) / Հայաստանի Հանրապետության գիտությունների ազգային ակադեմիա, ՀՀ ԳԱԱ Armenia (AM) University of Leeds United Kingdom (GB) Univerzita Karlova v Praze / Charles University in Prague Czech Republic (CZ)

How to cite

APA:

Abramowski, A., Acero, F., Aharonian, F., Akhperjanian, A.G., Anton, G., Balzer, A.,... Zechlin, H.-S. (2011). A new SNR with TeV shell-type morphology: HESS J1731-347. Astronomy & Astrophysics, 531. https://doi.org/10.1051/0004-6361/201016425

MLA:

Abramowski, A., et al. "A new SNR with TeV shell-type morphology: HESS J1731-347." Astronomy & Astrophysics 531 (2011).

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