Crowther, P.A., Caballero-Nieves, S.M., Castro, N. et al. (1 more author) (2016) The Tarantula Nebula as a template for extragalactic star forming regions from VLT/MUSE and HST/STIS. In: Proceedings of the International Astronomical Union. IAUS 329: The Lives and Death-Throes of Massive Stars, 28 Nov - 02 Dec 2016, Auckland, New Zealand. Cambridge University Press , pp. 292-296.
Abstract
We present VLT/MUSE observations of NGC 2070, the dominant ionizing nebula of 30 Doradus in the LMC, plus HST/STIS spectroscopy of its central star cluster R136. Integral Field Spectroscopy (MUSE) and pseudo IFS (STIS) together provides a complete census of all massive stars within the central 30x30 parsec^2 of the Tarantula. We discuss the integrated far-UV spectrum of R136, of particular interest for UV studies of young extragalactic star clusters. Strong HeII 1640 emission at very early ages (1-2 Myr) from very massive stars cannot be reproduced by current population synthesis models, even those incorporating binary evolution and very massive stars. A nebular analysis of the integrated MUSE dataset implies an age of ~4.5 Myr for NGC 2070. Wolf-Rayet features provide alternative age diagnostics, with the primary contribution to the integrated Wolf-Rayet bumps arising from R140 rather than the more numerous H-rich WN stars in R136. Caution should be used when interpreting spatially extended observations of extragalactic star-forming regions.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © International Astronomical Union 2017. This is an author produced version of a paper subsequently published in Proceedings of the International Astronomical Union. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | astro-ph.GA; astro-ph.GA; astro-ph.SR |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
Funding Information: | Funder Grant number SCIENCE AND TECHNOLOGY FACILITIES COUNCIL ST/M001350/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 20 Feb 2017 14:35 |
Last Modified: | 28 Jan 2018 01:38 |
Published Version: | https://doi.org/ 10.1017/S1743921317002484 |
Status: | Published |
Publisher: | Cambridge University Press |
Refereed: | Yes |
Identification Number: | 10.1017/S1743921317002484 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:112327 |