@inproceedings{oai:jaxa.repo.nii.ac.jp:00002990, author = {Davies, Jonathan I.}, book = {宇宙航空研究開発機構特別資料, JAXA Special Publication: Proceedings of the SPICA Science Conference from Exoplanets to Distant Galaxies: SPICA's New Window on the Cool Universe}, month = {Mar}, note = {SPICA Science Conference from Exoplanets to Distant Galaxies: SPICA's New Window on the Cool Universe (June 18-21, 2013. Ito Hall, the University of Tokyo), Bunkyou-ku, Tokyo, Japan, We have been using Herschel data at 100-500 micro m to study the far-infrared luminosity functions of Virgo, Coma and Fornax cluster galaxies and to compare them to those of field galaxies. We show that the Virgo cluster lacks the very bright and the numerous faint sources detected in other surveys of the general field carried out by both Herschel and Planck (typically a luminosity function faint end slope of -1.0 compared to -1.5). We fit the far-infrared spectral energy distributions using a fixed (β= 2) emissivity index to obtain dust masses and temperatures. The dust mass function has a similar shape to that of the field, so the disparity in cluster and field galaxy luminosity functions must be due to different dust temperatures not different quantities of dust. The Virgo cluster is over dense in dust by about a factor of 100 compared to the field., 形態: カラー図版あり, Physical characteristics: Original contains color illustrations, 資料番号: AA1730027013, レポート番号: JAXA-SP-17-010E}, pages = {67--70}, publisher = {宇宙航空研究開発機構(JAXA), Japan Aerospace Exploration Agency (JAXA)}, title = {Luminosity and Dust Mass Functions of Galaxy Clusters}, volume = {JAXA-SP-17-010E}, year = {2018} }