Discovery of extended VHE γ-ray emission from the vicinity of the young massive stellar cluster Westerlund 1 Author(s): Abramowski A., Acero F., Barnacka A., Becherini Y., Biteau J., Bolmont J., Brun F., Brun P., Charbonnier A., Chounet L. -M., Coignet G., Degrange B., Djannati-Ataï A., Dubois F., Espigat P., Farnier C., Fegan S., Feinstein F., Fiasson A., Fontaine G., Gallant Y., Gérard L., Giebels B., Glicenstein J. F., Goret P., Marcowith A., Mehault J., Renaud M., Vasileiadis G., Vorobiov S. (Article) Published: Astronomy & Astrophysics, vol. 537 p.A114 (2012) Links openAccess full text : Ref HAL: in2p3-00640986_v1 Ref Arxiv: 1111.2043 DOI: 10.1051/0004-6361/201117928 Ref. & Cit.: NASA ADS Exporter : BibTex | endNote 47 citations Comments: 11 pages, 6 figures |