{"paper":{"title":"The Herschel Virgo Cluster Survey: III. A constraint on dust grain lifetime in early-type galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Boselli, A. Bressan, A. Dariush, A. P. Jones, C. Giovanardi, C. Vlahakis, D. A. Garcia-Appadoo, D. Fadda, D. J. Bomans, D. Pierini, E. Corbelli, E. M. Xilouris, G. Gavazzi, G. J. Bendo, I. De Looze, J. Fritz, J. I. Davies, J. Verstappen, L. Cortese, L. K. Hunt, M. Baes, M. Grossi, M. Pohlen, M. S. Clemens, M. W. L. Smith, S. Bianchi, S. di Serego Alighieri, S. Madden, S. Sabatini, S. Zibetti, T. M. Hughes","submitted_at":"2010-05-17T21:38:22Z","abstract_excerpt":"Passive early-type galaxies (ETGs) provide an ideal laboratory for studying the interplay between dust formation around evolved stars and its subsequent destruction in a hot gas. Using Spitzer-IRS and Herschel data we compare the dust production rate in the envelopes of evolved AGB stars with a constraint on the total dust mass. Early-type galaxies which appear to be truly passively evolving are not detected by Herschel. We thus derive a distance independent upper limit to the dust grain survival time in the hostile environment of ETGs of < 46 +/- 25 Myr for amorphous silicate grains. This imp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.3056","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}