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• W1986248936 abstract "Context. The VLT-FLAMES Tarantula Survey has an extensive view of the copious number of massive stars in the 30 Doradus (30 Dor) star forming region of the Large Magellanic Cloud. These stars play a crucial role in our understanding of the stellar feedback in more distant, unresolved star forming regions.Aims. The first comprehensive census of hot luminous stars in 30 Dor is compiled within a 10 arcmin (150 pc) radius of its central cluster, R136. We investigate the stellar content and spectroscopic completeness of the early type stars. Estimates were made for both the integrated ionising luminosity and stellar wind luminosity. These values were used to re-assess the star formation rate (SFR) of the region and determine the ionising photon escape fraction.Methods. Stars were selected photometrically and combined with the latest spectral classifications. Spectral types were estimated for stars lacking spectroscopy and corrections were made for binary systems, where possible. Stellar calibrations were applied to obtain their physical parameters and wind properties. Their integrated properties were then compared to global observations from ultraviolet (UV) to far-infrared (FIR) imaging as well as the population synthesis code, Starburst99 .Results. Our census identified 1145 candidate hot luminous stars within 150 pc of R136 of which >700 were considered to be genuine early type stars and contribute to feedback. We assess the survey to be spectroscopically complete to 85% in the outer regions (>5 pc) but only 35% complete in the region of the R136 cluster, giving a total of 500 hot luminous stars in the census which had spectroscopy. Only 31 were found to be Wolf-Rayet (W-R) or Of/WN stars, but their contribution to the integrated ionising luminosity and wind luminosity was ~40% and ~50%, respectively. Similarly, stars with M init  > 100   M ⊙ (mostly H-rich WN stars) also showed high contributions to the global feedback, ~25% in both cases. Such massive stars are not accounted for by the current Starburst99 code, which was found to underestimate the integrated ionising luminosity of R136 by a factor ~2 and the wind luminosity by a factor ~9. The census inferred a SFR for 30 Dor of 0.073 ± 0.04 M ⊙  yr-1 . This was generally higher than that obtained from some popular SFR calibrations but still showed good consistency with the far-UV luminosity tracer as well as the combined Hα and mid-infrared tracer, but only after correcting for Hα extinction. The global ionising output was also found to exceed that measured from the associated gas and dust, suggesting that ~6+55 -6 % of the ionising photons escape the region.Conclusions. When studying the most luminous star forming regions, it is essential to include their most massive stars if one is to determine a reliable energy budget. Photon leakage becomes more likely after including their large contributions to the ionising output. If 30 Dor is typical of other massive star forming regions, estimates of the SFR will be underpredicted if this escape fraction is not accounted for." @default.
• W1986248936 created "2016-06-24" @default.
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• W1986248936 date "2013-10-01" @default.
• W1986248936 modified "2023-10-01" @default.
• W1986248936 title "The VLT-FLAMES Tarantula Survey. XI. A census of the hot luminous stars and their feedback in 30 Doradus" @default.
• W1986248936 cites W1495978751 @default.
• W1986248936 cites W1530279911 @default.
• W1986248936 cites W1575260296 @default.
• W1986248936 cites W1606521525 @default.
• W1986248936 cites W1657963658 @default.
• W1986248936 cites W1671074551 @default.
• W1986248936 cites W1672761617 @default.
• W1986248936 cites W1958408535 @default.
• W1986248936 cites W1969070763 @default.
• W1986248936 cites W1971309744 @default.
• W1986248936 cites W1973610469 @default.
• W1986248936 cites W1977780516 @default.
• W1986248936 cites W1979635286 @default.
• W1986248936 cites W1987079650 @default.
• W1986248936 cites W1987330298 @default.
• W1986248936 cites W1991173356 @default.
• W1986248936 cites W1993133574 @default.
• W1986248936 cites W1993308835 @default.
• W1986248936 cites W1996900209 @default.
• W1986248936 cites W2002416181 @default.
• W1986248936 cites W2015295900 @default.
• W1986248936 cites W2019613714 @default.
• W1986248936 cites W2020112982 @default.
• W1986248936 cites W2020488106 @default.
• W1986248936 cites W2023145127 @default.
• W1986248936 cites W2023891552 @default.
• W1986248936 cites W2025107042 @default.
• W1986248936 cites W2034560836 @default.
• W1986248936 cites W2034608771 @default.
• W1986248936 cites W2038044353 @default.
• W1986248936 cites W2038475064 @default.
• W1986248936 cites W2038617548 @default.
• W1986248936 cites W2039040011 @default.
• W1986248936 cites W2040481510 @default.
• W1986248936 cites W2041030501 @default.
• W1986248936 cites W2042771706 @default.
• W1986248936 cites W2043337245 @default.
• W1986248936 cites W2045489864 @default.
• W1986248936 cites W2049117680 @default.
• W1986248936 cites W2050564264 @default.
• W1986248936 cites W2061260577 @default.
• W1986248936 cites W2061656473 @default.
• W1986248936 cites W2062150455 @default.
• W1986248936 cites W2068533219 @default.
• W1986248936 cites W2070607681 @default.
• W1986248936 cites W2072477223 @default.
• W1986248936 cites W2076151967 @default.
• W1986248936 cites W2077282444 @default.
• W1986248936 cites W2077456416 @default.
• W1986248936 cites W2078393679 @default.
• W1986248936 cites W2078906150 @default.
• W1986248936 cites W2082084945 @default.
• W1986248936 cites W2084260132 @default.
• W1986248936 cites W2085692565 @default.
• W1986248936 cites W2086003300 @default.
• W1986248936 cites W2090135680 @default.
• W1986248936 cites W2090712384 @default.
• W1986248936 cites W2090929586 @default.
• W1986248936 cites W2093360324 @default.
• W1986248936 cites W2095813547 @default.
• W1986248936 cites W2099071628 @default.
• W1986248936 cites W2099461377 @default.
• W1986248936 cites W2101758936 @default.
• W1986248936 cites W2107436274 @default.
• W1986248936 cites W2108679361 @default.
• W1986248936 cites W2108976558 @default.
• W1986248936 cites W2113900449 @default.
• W1986248936 cites W2114246636 @default.
• W1986248936 cites W2115056048 @default.
• W1986248936 cites W2116428272 @default.
• W1986248936 cites W2117169473 @default.
• W1986248936 cites W2119187074 @default.
• W1986248936 cites W2121359722 @default.
• W1986248936 cites W2121404382 @default.
• W1986248936 cites W2123267088 @default.
• W1986248936 cites W2123423036 @default.

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