{ "id": "1101.1953", "version": "v2", "published": "2011-01-10T21:00:02.000Z", "updated": "2011-02-08T10:46:45.000Z", "title": "The Distance to the Massive Eclipsing Binary LMC-SC1-105 in the Large Magellanic Cloud", "authors": [ "Alceste Z. Bonanos", "Norberto Castro", "Lucas M. Macri", "Rolf-Peter Kudritzki" ], "comment": "5 pages, 5 figures, emulateapj format, matches accepted ApJL version (v2: very minor changes)", "journal": "Astrophys.J. 729 (2011) L9-L14", "categories": [ "astro-ph.SR", "astro-ph.CO" ], "abstract": "This paper presents the first distance measurement to the massive, semi-detached, eclipsing binary LMC-SC1-105, located in the LH 81 association of the Large Magellanic Cloud (LMC). Previously determined parameters of the system are combined with new near-infrared photometry and a new temperature analysis to constrain the reddening toward the system, and determine a distance of 50.6+/-1.6 kpc (corresponding to a distance modulus of 18.52+/-0.07 mag), in agreement with previous eclipsing binary measurements. This is the sixth distance measurement to an eclipsing binary in the LMC, although the first to an O-type system. We thus demonstrate the suitability of O-type eclipsing binaries (EBs) as distance indicators. We suggest using bright, early-type EBs to measure distances along different sight lines, as an independent way to map the depth of the LMC and resolve the controversy about its three-dimensional structure.", "revisions": [ { "version": "v2", "updated": "2011-02-08T10:46:45.000Z" } ], "analyses": { "keywords": [ "large magellanic cloud", "massive eclipsing binary", "first distance measurement", "sixth distance measurement", "o-type system" ], "tags": [ "journal article" ], "publication": { "doi": "10.1088/2041-8205/729/1/L9", "journal": "The Astrophysical Journal", "year": 2011, "month": "Mar", "volume": 729, "number": 1 }, "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "inspire": 883880, "adsabs": "2011ApJ...729L...9B" } } }