Dust emission from clusters of galaxies: statistical detection L. Montier, M. Giard To cite this version: L. Montier, M. Giard. Dust emission from clusters of galaxies: statistical detection. Astronomy and Astrophysics - A&A, EDP Sciences, 2005, 439, pp.35. 10.1051/0004-6361:20042388. hal-00013391 HAL Id: hal-00013391 https://hal.archives-ouvertes.fr/hal-00013391 Submitted on 19 Feb 2021 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. A&A 439, 35–44 (2005) Astronomy DOI: 10.1051/0004-6361:20042388 & c ESO 2005 Astrophysics Dust emission from clusters of galaxies: statistical detection L. A. Montier and M. Giard Centre d’Études Spatiales des Rayonnements, 9 avenue Colonel Roche, 31022 Toulouse, France e-mail:
[email protected] Received 18 November 2004 / Accepted 3 March 2005 Abstract. The detection of the IR emission from individual galaxy clusters is a difficult task due to the extremely low level of this emission and the fluctuations of the IR sky, galactic cirrus and background galaxies. We have statistically detected a significant IR emission toward galaxy clusters at 12 µm, 25 µm, 60 µm and 100 µm by co-adding the IRAS maps toward a total of 11 507 galaxy clusters extracted from the CDS database.