{"paper":{"title":"Extinction Maps and Dust-to-Gas Ratios in Nearby Galaxies with LEGUS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Adamo, A. Aloisi, A. Herrero, A. Nota, A. Pellerin, A. S. Evans, A. Wofford, B. C. Whitmore, B. G. Elmegreen, C. Christian, C. Dobbs, D. A. Dale, D. A. Gouliermis, D. A. Hunter, D. Calzetti, D. M. Elmegreen, D. O. Cook, D. Schaerer, D. Thilker, E. K. Grebel, E. Sabbi, E. Sacchi, F. Shabani, G. Ashworth, H. Kim, J. C. Lee, J. E. Andrews, J. E. Ryon, J. S. Gallagher III, K. E. Johnson, K. Grasha, L. J. Smith, L. Kahre, L. Ubeda, M. Cignoni, M. Fumagalli, M. Messa, M. R. Krumholz, M. Tosi, P. Nair, R. A. Walterbos, R. Chandar, R. C. Kennicutt, S. D. Van Dyk, S. E. de Mink, S. N. Bright, T. M. Brown","submitted_at":"2018-02-20T00:04:41Z","abstract_excerpt":"We present a study of the dust-to-gas ratios in five nearby galaxies NGC 628 (M74), NGC 6503, NGC 7793, UGC 5139 (Holmberg I), and UGC 4305 (Holmberg II). Using Hubble Space Telescope broad band WFC3/UVIS UV and optical images from the Treasury program LEGUS (Legacy ExtraGalactic UV Survey) combined with archival HST/ACS data, we correct thousands of individual stars for extinction across these five galaxies using an isochrone-matching (reddening-free Q) method. We generate extinction maps for each galaxy from the individual stellar extinctions using both adaptive and fixed resolution techniqu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.06915","kind":"arxiv","version":2},"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"}