{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2022,4,4]],"date-time":"2022-04-04T19:42:36Z","timestamp":1649101356691},"reference-count":0,"publisher":"Cambridge University Press (CUP)","issue":"S235","license":[{"start":{"date-parts":[[2006,8,1]],"date-time":"2006-08-01T00:00:00Z","timestamp":1154390400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Proc. IAU"],"published-print":{"date-parts":[[2006,8]]},"abstract":"<jats:p>We present new spectroscopic observations of the system of the two blue compact dwarf (BCD) galaxies SBS 0335-052 W and SBS 0335-052 E with the 3.6m ESO telescope. The oxygen abundance in SBS 0335-052 W was determined to be 12 + log(O\/H) = 7.13\u00b10.08, confirming that this galaxy is the most metal-deficient emission-line galaxy known. We find that the oxygen abundance in SBS 0335-052 E varies from region to region in the range from 7.20 to 7.31, suggesting the presence of an abundance gradient over a spatial scale of ~1 kpc. Signatures of early carbon-type Wolf-Rayet stars are detected in cluster #3 of SBS 0335-052 E, corresponding to the emission of 20 to 130 WC4 stars, depending on the adopted luminosity of a single WC4 star in the Civ \u03bb4658 emission line (Papaderos <jats:italic>et al<\/jats:italic>. 2006).<\/jats:p>","DOI":"10.1017\/s1743921306006910","type":"journal-article","created":{"date-parts":[[2007,4,23]],"date-time":"2007-04-23T09:11:01Z","timestamp":1177319461000},"page":"326-326","source":"Crossref","is-referenced-by-count":1,"title":["Oxygen Abundance and Stellar Populations in the Three Most Metal-Deficient Emission-Line Galaxies Known in the Local Universe: SBS 0335-052,E, SBS 0335-052 W and I Zw 18"],"prefix":"10.1017","volume":"2","author":[{"given":"P.","family":"Papaderos","sequence":"first","affiliation":[]},{"given":"T.","family":"Yakobchuk","sequence":"additional","affiliation":[]},{"given":"Y. I.","family":"Izotov","sequence":"additional","affiliation":[]},{"given":"N. G.","family":"Guseva","sequence":"additional","affiliation":[]},{"given":"K. J.","family":"Fricke","sequence":"additional","affiliation":[]}],"member":"56","published-online":{"date-parts":[[2006,8,1]]},"container-title":["Proceedings of the International Astronomical Union"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S1743921306006910","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,4,11]],"date-time":"2019-04-11T23:10:37Z","timestamp":1555024237000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S1743921306006910\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2006,8]]},"references-count":0,"journal-issue":{"issue":"S235","published-print":{"date-parts":[[2006,8]]}},"alternative-id":["S1743921306006910"],"URL":"https:\/\/doi.org\/10.1017\/s1743921306006910","relation":{},"ISSN":["1743-9213","1743-9221"],"issn-type":[{"value":"1743-9213","type":"print"},{"value":"1743-9221","type":"electronic"}],"subject":[],"published":{"date-parts":[[2006,8]]}}}